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gem5 / arm / linux / d1c61e6d79ea0d4d53dc18bcd2db30ef2d99cfa7 / . / tools / power / x86 / turbostat / turbostat.c
blob: bd9c6b31a504df654e16a9389abbb9028cfa2bb7 [file] [log] [blame]
/*
* turbostat -- show CPU frequency and C-state residency
* on modern Intel turbo-capable processors.
*
* Copyright (c) 2013 Intel Corporation.
* Len Brown <len.brown@intel.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
*/
#define _GNU_SOURCE
#include MSRHEADER
#include INTEL_FAMILY_HEADER
#include <stdarg.h>
#include <stdio.h>
#include <err.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <sys/stat.h>
#include <sys/resource.h>
#include <fcntl.h>
#include <signal.h>
#include <sys/time.h>
#include <stdlib.h>
#include <getopt.h>
#include <dirent.h>
#include <string.h>
#include <ctype.h>
#include <sched.h>
#include <time.h>
#include <cpuid.h>
#include <linux/capability.h>
#include <errno.h>
char *proc_stat = "/proc/stat";
FILE *outf;
int *fd_percpu;
struct timespec interval_ts = {5, 0};
unsigned int debug;
unsigned int quiet;
unsigned int sums_need_wide_columns;
unsigned int rapl_joules;
unsigned int summary_only;
unsigned int list_header_only;
unsigned int dump_only;
unsigned int do_snb_cstates;
unsigned int do_knl_cstates;
unsigned int do_slm_cstates;
unsigned int use_c1_residency_msr;
unsigned int has_aperf;
unsigned int has_epb;
unsigned int do_irtl_snb;
unsigned int do_irtl_hsw;
unsigned int units = 1000000; /* MHz etc */
unsigned int genuine_intel;
unsigned int has_invariant_tsc;
unsigned int do_nhm_platform_info;
unsigned int no_MSR_MISC_PWR_MGMT;
unsigned int aperf_mperf_multiplier = 1;
double bclk;
double base_hz;
unsigned int has_base_hz;
double tsc_tweak = 1.0;
unsigned int show_pkg_only;
unsigned int show_core_only;
char *output_buffer, *outp;
unsigned int do_rapl;
unsigned int do_dts;
unsigned int do_ptm;
unsigned long long gfx_cur_rc6_ms;
unsigned int gfx_cur_mhz;
unsigned int tcc_activation_temp;
unsigned int tcc_activation_temp_override;
double rapl_power_units, rapl_time_units;
double rapl_dram_energy_units, rapl_energy_units;
double rapl_joule_counter_range;
unsigned int do_core_perf_limit_reasons;
unsigned int do_gfx_perf_limit_reasons;
unsigned int do_ring_perf_limit_reasons;
unsigned int crystal_hz;
unsigned long long tsc_hz;
int base_cpu;
double discover_bclk(unsigned int family, unsigned int model);
unsigned int has_hwp; /* IA32_PM_ENABLE, IA32_HWP_CAPABILITIES */
/* IA32_HWP_REQUEST, IA32_HWP_STATUS */
unsigned int has_hwp_notify; /* IA32_HWP_INTERRUPT */
unsigned int has_hwp_activity_window; /* IA32_HWP_REQUEST[bits 41:32] */
unsigned int has_hwp_epp; /* IA32_HWP_REQUEST[bits 31:24] */
unsigned int has_hwp_pkg; /* IA32_HWP_REQUEST_PKG */
unsigned int has_misc_feature_control;
#define RAPL_PKG (1 << 0)
/* 0x610 MSR_PKG_POWER_LIMIT */
/* 0x611 MSR_PKG_ENERGY_STATUS */
#define RAPL_PKG_PERF_STATUS (1 << 1)
/* 0x613 MSR_PKG_PERF_STATUS */
#define RAPL_PKG_POWER_INFO (1 << 2)
/* 0x614 MSR_PKG_POWER_INFO */
#define RAPL_DRAM (1 << 3)
/* 0x618 MSR_DRAM_POWER_LIMIT */
/* 0x619 MSR_DRAM_ENERGY_STATUS */
#define RAPL_DRAM_PERF_STATUS (1 << 4)
/* 0x61b MSR_DRAM_PERF_STATUS */
#define RAPL_DRAM_POWER_INFO (1 << 5)
/* 0x61c MSR_DRAM_POWER_INFO */
#define RAPL_CORES_POWER_LIMIT (1 << 6)
/* 0x638 MSR_PP0_POWER_LIMIT */
#define RAPL_CORE_POLICY (1 << 7)
/* 0x63a MSR_PP0_POLICY */
#define RAPL_GFX (1 << 8)
/* 0x640 MSR_PP1_POWER_LIMIT */
/* 0x641 MSR_PP1_ENERGY_STATUS */
/* 0x642 MSR_PP1_POLICY */
#define RAPL_CORES_ENERGY_STATUS (1 << 9)
/* 0x639 MSR_PP0_ENERGY_STATUS */
#define RAPL_CORES (RAPL_CORES_ENERGY_STATUS | RAPL_CORES_POWER_LIMIT)
#define TJMAX_DEFAULT 100
#define MAX(a, b) ((a) > (b) ? (a) : (b))
/*
* buffer size used by sscanf() for added column names
* Usually truncated to 7 characters, but also handles 18 columns for raw 64-bit counters
*/
#define NAME_BYTES 20
#define PATH_BYTES 128
int backwards_count;
char *progname;
#define CPU_SUBSET_MAXCPUS 1024 /* need to use before probe... */
cpu_set_t *cpu_present_set, *cpu_affinity_set, *cpu_subset;
size_t cpu_present_setsize, cpu_affinity_setsize, cpu_subset_size;
#define MAX_ADDED_COUNTERS 16
struct thread_data {
struct timeval tv_begin;
struct timeval tv_end;
unsigned long long tsc;
unsigned long long aperf;
unsigned long long mperf;
unsigned long long c1;
unsigned long long irq_count;
unsigned int smi_count;
unsigned int cpu_id;
unsigned int flags;
#define CPU_IS_FIRST_THREAD_IN_CORE 0x2
#define CPU_IS_FIRST_CORE_IN_PACKAGE 0x4
unsigned long long counter[MAX_ADDED_COUNTERS];
} *thread_even, *thread_odd;
struct core_data {
unsigned long long c3;
unsigned long long c6;
unsigned long long c7;
unsigned long long mc6_us; /* duplicate as per-core for now, even though per module */
unsigned int core_temp_c;
unsigned int core_id;
unsigned long long counter[MAX_ADDED_COUNTERS];
} *core_even, *core_odd;
struct pkg_data {
unsigned long long pc2;
unsigned long long pc3;
unsigned long long pc6;
unsigned long long pc7;
unsigned long long pc8;
unsigned long long pc9;
unsigned long long pc10;
unsigned long long pkg_wtd_core_c0;
unsigned long long pkg_any_core_c0;
unsigned long long pkg_any_gfxe_c0;
unsigned long long pkg_both_core_gfxe_c0;
long long gfx_rc6_ms;
unsigned int gfx_mhz;
unsigned int package_id;
unsigned int energy_pkg; /* MSR_PKG_ENERGY_STATUS */
unsigned int energy_dram; /* MSR_DRAM_ENERGY_STATUS */
unsigned int energy_cores; /* MSR_PP0_ENERGY_STATUS */
unsigned int energy_gfx; /* MSR_PP1_ENERGY_STATUS */
unsigned int rapl_pkg_perf_status; /* MSR_PKG_PERF_STATUS */
unsigned int rapl_dram_perf_status; /* MSR_DRAM_PERF_STATUS */
unsigned int pkg_temp_c;
unsigned long long counter[MAX_ADDED_COUNTERS];
} *package_even, *package_odd;
#define ODD_COUNTERS thread_odd, core_odd, package_odd
#define EVEN_COUNTERS thread_even, core_even, package_even
#define GET_THREAD(thread_base, thread_no, core_no, pkg_no) \
(thread_base + (pkg_no) * topo.num_cores_per_pkg * \
topo.num_threads_per_core + \
(core_no) * topo.num_threads_per_core + (thread_no))
#define GET_CORE(core_base, core_no, pkg_no) \
(core_base + (pkg_no) * topo.num_cores_per_pkg + (core_no))
#define GET_PKG(pkg_base, pkg_no) (pkg_base + pkg_no)
enum counter_scope {SCOPE_CPU, SCOPE_CORE, SCOPE_PACKAGE};
enum counter_type {COUNTER_ITEMS, COUNTER_CYCLES, COUNTER_SECONDS, COUNTER_USEC};
enum counter_format {FORMAT_RAW, FORMAT_DELTA, FORMAT_PERCENT};
struct msr_counter {
unsigned int msr_num;
char name[NAME_BYTES];
char path[PATH_BYTES];
unsigned int width;
enum counter_type type;
enum counter_format format;
struct msr_counter *next;
unsigned int flags;
#define FLAGS_HIDE (1 << 0)
#define FLAGS_SHOW (1 << 1)
#define SYSFS_PERCPU (1 << 1)
};
struct sys_counters {
unsigned int added_thread_counters;
unsigned int added_core_counters;
unsigned int added_package_counters;
struct msr_counter *tp;
struct msr_counter *cp;
struct msr_counter *pp;
} sys;
struct system_summary {
struct thread_data threads;
struct core_data cores;
struct pkg_data packages;
} average;
struct topo_params {
int num_packages;
int num_cpus;
int num_cores;
int max_cpu_num;
int num_cores_per_pkg;
int num_threads_per_core;
} topo;
struct timeval tv_even, tv_odd, tv_delta;
int *irq_column_2_cpu; /* /proc/interrupts column numbers */
int *irqs_per_cpu; /* indexed by cpu_num */
void setup_all_buffers(void);
int cpu_is_not_present(int cpu)
{
return !CPU_ISSET_S(cpu, cpu_present_setsize, cpu_present_set);
}
/*
* run func(thread, core, package) in topology order
* skip non-present cpus
*/
int for_all_cpus(int (func)(struct thread_data *, struct core_data *, struct pkg_data *),
struct thread_data *thread_base, struct core_data *core_base, struct pkg_data *pkg_base)
{
int retval, pkg_no, core_no, thread_no;
for (pkg_no = 0; pkg_no < topo.num_packages; ++pkg_no) {
for (core_no = 0; core_no < topo.num_cores_per_pkg; ++core_no) {
for (thread_no = 0; thread_no <
topo.num_threads_per_core; ++thread_no) {
struct thread_data *t;
struct core_data *c;
struct pkg_data *p;
t = GET_THREAD(thread_base, thread_no, core_no, pkg_no);
if (cpu_is_not_present(t->cpu_id))
continue;
c = GET_CORE(core_base, core_no, pkg_no);
p = GET_PKG(pkg_base, pkg_no);
retval = func(t, c, p);
if (retval)
return retval;
}
}
}
return 0;
}
int cpu_migrate(int cpu)
{
CPU_ZERO_S(cpu_affinity_setsize, cpu_affinity_set);
CPU_SET_S(cpu, cpu_affinity_setsize, cpu_affinity_set);
if (sched_setaffinity(0, cpu_affinity_setsize, cpu_affinity_set) == -1)
return -1;
else
return 0;
}
int get_msr_fd(int cpu)
{
char pathname[32];
int fd;
fd = fd_percpu[cpu];
if (fd)
return fd;
sprintf(pathname, "/dev/cpu/%d/msr", cpu);
fd = open(pathname, O_RDONLY);
if (fd < 0)
err(-1, "%s open failed, try chown or chmod +r /dev/cpu/*/msr, or run as root", pathname);
fd_percpu[cpu] = fd;
return fd;
}
int get_msr(int cpu, off_t offset, unsigned long long *msr)
{
ssize_t retval;
retval = pread(get_msr_fd(cpu), msr, sizeof(*msr), offset);
if (retval != sizeof *msr)
err(-1, "cpu%d: msr offset 0x%llx read failed", cpu, (unsigned long long)offset);
return 0;
}
/*
* Each string in this array is compared in --show and --hide cmdline.
* Thus, strings that are proper sub-sets must follow their more specific peers.
*/
struct msr_counter bic[] = {
{ 0x0, "Package" },
{ 0x0, "Avg_MHz" },
{ 0x0, "Bzy_MHz" },
{ 0x0, "TSC_MHz" },
{ 0x0, "IRQ" },
{ 0x0, "SMI", "", 32, 0, FORMAT_DELTA, NULL},
{ 0x0, "Busy%" },
{ 0x0, "CPU%c1" },
{ 0x0, "CPU%c3" },
{ 0x0, "CPU%c6" },
{ 0x0, "CPU%c7" },
{ 0x0, "ThreadC" },
{ 0x0, "CoreTmp" },
{ 0x0, "CoreCnt" },
{ 0x0, "PkgTmp" },
{ 0x0, "GFX%rc6" },
{ 0x0, "GFXMHz" },
{ 0x0, "Pkg%pc2" },
{ 0x0, "Pkg%pc3" },
{ 0x0, "Pkg%pc6" },
{ 0x0, "Pkg%pc7" },
{ 0x0, "Pkg%pc8" },
{ 0x0, "Pkg%pc9" },
{ 0x0, "Pkg%pc10" },
{ 0x0, "PkgWatt" },
{ 0x0, "CorWatt" },
{ 0x0, "GFXWatt" },
{ 0x0, "PkgCnt" },
{ 0x0, "RAMWatt" },
{ 0x0, "PKG_%" },
{ 0x0, "RAM_%" },
{ 0x0, "Pkg_J" },
{ 0x0, "Cor_J" },
{ 0x0, "GFX_J" },
{ 0x0, "RAM_J" },
{ 0x0, "Core" },
{ 0x0, "CPU" },
{ 0x0, "Mod%c6" },
{ 0x0, "sysfs" },
{ 0x0, "Totl%C0" },
{ 0x0, "Any%C0" },
{ 0x0, "GFX%C0" },
{ 0x0, "CPUGFX%" },
};
#define MAX_BIC (sizeof(bic) / sizeof(struct msr_counter))
#define BIC_Package (1ULL << 0)
#define BIC_Avg_MHz (1ULL << 1)
#define BIC_Bzy_MHz (1ULL << 2)
#define BIC_TSC_MHz (1ULL << 3)
#define BIC_IRQ (1ULL << 4)
#define BIC_SMI (1ULL << 5)
#define BIC_Busy (1ULL << 6)
#define BIC_CPU_c1 (1ULL << 7)
#define BIC_CPU_c3 (1ULL << 8)
#define BIC_CPU_c6 (1ULL << 9)
#define BIC_CPU_c7 (1ULL << 10)
#define BIC_ThreadC (1ULL << 11)
#define BIC_CoreTmp (1ULL << 12)
#define BIC_CoreCnt (1ULL << 13)
#define BIC_PkgTmp (1ULL << 14)
#define BIC_GFX_rc6 (1ULL << 15)
#define BIC_GFXMHz (1ULL << 16)
#define BIC_Pkgpc2 (1ULL << 17)
#define BIC_Pkgpc3 (1ULL << 18)
#define BIC_Pkgpc6 (1ULL << 19)
#define BIC_Pkgpc7 (1ULL << 20)
#define BIC_Pkgpc8 (1ULL << 21)
#define BIC_Pkgpc9 (1ULL << 22)
#define BIC_Pkgpc10 (1ULL << 23)
#define BIC_PkgWatt (1ULL << 24)
#define BIC_CorWatt (1ULL << 25)
#define BIC_GFXWatt (1ULL << 26)
#define BIC_PkgCnt (1ULL << 27)
#define BIC_RAMWatt (1ULL << 28)
#define BIC_PKG__ (1ULL << 29)
#define BIC_RAM__ (1ULL << 30)
#define BIC_Pkg_J (1ULL << 31)
#define BIC_Cor_J (1ULL << 32)
#define BIC_GFX_J (1ULL << 33)
#define BIC_RAM_J (1ULL << 34)
#define BIC_Core (1ULL << 35)
#define BIC_CPU (1ULL << 36)
#define BIC_Mod_c6 (1ULL << 37)
#define BIC_sysfs (1ULL << 38)
#define BIC_Totl_c0 (1ULL << 39)
#define BIC_Any_c0 (1ULL << 40)
#define BIC_GFX_c0 (1ULL << 41)
#define BIC_CPUGFX (1ULL << 42)
unsigned long long bic_enabled = 0xFFFFFFFFFFFFFFFFULL;
unsigned long long bic_present = BIC_sysfs;
#define DO_BIC(COUNTER_NAME) (bic_enabled & bic_present & COUNTER_NAME)
#define BIC_PRESENT(COUNTER_BIT) (bic_present |= COUNTER_BIT)
#define BIC_NOT_PRESENT(COUNTER_BIT) (bic_present &= ~COUNTER_BIT)
#define MAX_DEFERRED 16
char *deferred_skip_names[MAX_DEFERRED];
int deferred_skip_index;
/*
* HIDE_LIST - hide this list of counters, show the rest [default]
* SHOW_LIST - show this list of counters, hide the rest
*/
enum show_hide_mode { SHOW_LIST, HIDE_LIST } global_show_hide_mode = HIDE_LIST;
void help(void)
{
fprintf(outf,
"Usage: turbostat [OPTIONS][(--interval seconds) | COMMAND ...]\n"
"\n"
"Turbostat forks the specified COMMAND and prints statistics\n"
"when COMMAND completes.\n"
"If no COMMAND is specified, turbostat wakes every 5-seconds\n"
"to print statistics, until interrupted.\n"
"--add add a counter\n"
" eg. --add msr0x10,u64,cpu,delta,MY_TSC\n"
"--cpu cpu-set limit output to summary plus cpu-set:\n"
" {core | package | j,k,l..m,n-p }\n"
"--quiet skip decoding system configuration header\n"
"--interval sec Override default 5-second measurement interval\n"
"--help print this help message\n"
"--list list column headers only\n"
"--out file create or truncate \"file\" for all output\n"
"--version print version information\n"
"\n"
"For more help, run \"man turbostat\"\n");
}
/*
* bic_lookup
* for all the strings in comma separate name_list,
* set the approprate bit in return value.
*/
unsigned long long bic_lookup(char *name_list, enum show_hide_mode mode)
{
int i;
unsigned long long retval = 0;
while (name_list) {
char *comma;
comma = strchr(name_list, ',');
if (comma)
*comma = '\0';
for (i = 0; i < MAX_BIC; ++i) {
if (!strcmp(name_list, bic[i].name)) {
retval |= (1ULL << i);
break;
}
}
if (i == MAX_BIC) {
if (mode == SHOW_LIST) {
fprintf(stderr, "Invalid counter name: %s\n", name_list);
exit(-1);
}
deferred_skip_names[deferred_skip_index++] = name_list;
if (debug)
fprintf(stderr, "deferred \"%s\"\n", name_list);
if (deferred_skip_index >= MAX_DEFERRED) {
fprintf(stderr, "More than max %d un-recognized --skip options '%s'\n",
MAX_DEFERRED, name_list);
help();
exit(1);
}
}
name_list = comma;
if (name_list)
name_list++;
}
return retval;
}
void print_header(char *delim)
{
struct msr_counter *mp;
int printed = 0;
if (debug)
outp += sprintf(outp, "usec %s", delim);
if (DO_BIC(BIC_Package))
outp += sprintf(outp, "%sPackage", (printed++ ? delim : ""));
if (DO_BIC(BIC_Core))
outp += sprintf(outp, "%sCore", (printed++ ? delim : ""));
if (DO_BIC(BIC_CPU))
outp += sprintf(outp, "%sCPU", (printed++ ? delim : ""));
if (DO_BIC(BIC_Avg_MHz))
outp += sprintf(outp, "%sAvg_MHz", (printed++ ? delim : ""));
if (DO_BIC(BIC_Busy))
outp += sprintf(outp, "%sBusy%%", (printed++ ? delim : ""));
if (DO_BIC(BIC_Bzy_MHz))
outp += sprintf(outp, "%sBzy_MHz", (printed++ ? delim : ""));
if (DO_BIC(BIC_TSC_MHz))
outp += sprintf(outp, "%sTSC_MHz", (printed++ ? delim : ""));
if (DO_BIC(BIC_IRQ)) {
if (sums_need_wide_columns)
outp += sprintf(outp, "%s IRQ", (printed++ ? delim : ""));
else
outp += sprintf(outp, "%sIRQ", (printed++ ? delim : ""));
}
if (DO_BIC(BIC_SMI))
outp += sprintf(outp, "%sSMI", (printed++ ? delim : ""));
for (mp = sys.tp; mp; mp = mp->next) {
if (mp->format == FORMAT_RAW) {
if (mp->width == 64)
outp += sprintf(outp, "%s%18.18s", (printed++ ? delim : ""), mp->name);
else
outp += sprintf(outp, "%s%10.10s", (printed++ ? delim : ""), mp->name);
} else {
if ((mp->type == COUNTER_ITEMS) && sums_need_wide_columns)
outp += sprintf(outp, "%s%8s", (printed++ ? delim : ""), mp->name);
else
outp += sprintf(outp, "%s%s", (printed++ ? delim : ""), mp->name);
}
}
if (DO_BIC(BIC_CPU_c1))
outp += sprintf(outp, "%sCPU%%c1", (printed++ ? delim : ""));
if (DO_BIC(BIC_CPU_c3) && !do_slm_cstates && !do_knl_cstates)
outp += sprintf(outp, "%sCPU%%c3", (printed++ ? delim : ""));
if (DO_BIC(BIC_CPU_c6))
outp += sprintf(outp, "%sCPU%%c6", (printed++ ? delim : ""));
if (DO_BIC(BIC_CPU_c7))
outp += sprintf(outp, "%sCPU%%c7", (printed++ ? delim : ""));
if (DO_BIC(BIC_Mod_c6))
outp += sprintf(outp, "%sMod%%c6", (printed++ ? delim : ""));
if (DO_BIC(BIC_CoreTmp))
outp += sprintf(outp, "%sCoreTmp", (printed++ ? delim : ""));
for (mp = sys.cp; mp; mp = mp->next) {
if (mp->format == FORMAT_RAW) {
if (mp->width == 64)
outp += sprintf(outp, "%s%18.18s", delim, mp->name);
else
outp += sprintf(outp, "%s%10.10s", delim, mp->name);
} else {
if ((mp->type == COUNTER_ITEMS) && sums_need_wide_columns)
outp += sprintf(outp, "%s%8s", delim, mp->name);
else
outp += sprintf(outp, "%s%s", delim, mp->name);
}
}
if (DO_BIC(BIC_PkgTmp))
outp += sprintf(outp, "%sPkgTmp", (printed++ ? delim : ""));
if (DO_BIC(BIC_GFX_rc6))
outp += sprintf(outp, "%sGFX%%rc6", (printed++ ? delim : ""));
if (DO_BIC(BIC_GFXMHz))
outp += sprintf(outp, "%sGFXMHz", (printed++ ? delim : ""));
if (DO_BIC(BIC_Totl_c0))
outp += sprintf(outp, "%sTotl%%C0", (printed++ ? delim : ""));
if (DO_BIC(BIC_Any_c0))
outp += sprintf(outp, "%sAny%%C0", (printed++ ? delim : ""));
if (DO_BIC(BIC_GFX_c0))
outp += sprintf(outp, "%sGFX%%C0", (printed++ ? delim : ""));
if (DO_BIC(BIC_CPUGFX))
outp += sprintf(outp, "%sCPUGFX%%", (printed++ ? delim : ""));
if (DO_BIC(BIC_Pkgpc2))
outp += sprintf(outp, "%sPkg%%pc2", (printed++ ? delim : ""));
if (DO_BIC(BIC_Pkgpc3))
outp += sprintf(outp, "%sPkg%%pc3", (printed++ ? delim : ""));
if (DO_BIC(BIC_Pkgpc6))
outp += sprintf(outp, "%sPkg%%pc6", (printed++ ? delim : ""));
if (DO_BIC(BIC_Pkgpc7))
outp += sprintf(outp, "%sPkg%%pc7", (printed++ ? delim : ""));
if (DO_BIC(BIC_Pkgpc8))
outp += sprintf(outp, "%sPkg%%pc8", (printed++ ? delim : ""));
if (DO_BIC(BIC_Pkgpc9))
outp += sprintf(outp, "%sPkg%%pc9", (printed++ ? delim : ""));
if (DO_BIC(BIC_Pkgpc10))
outp += sprintf(outp, "%sPk%%pc10", (printed++ ? delim : ""));
if (do_rapl && !rapl_joules) {
if (DO_BIC(BIC_PkgWatt))
outp += sprintf(outp, "%sPkgWatt", (printed++ ? delim : ""));
if (DO_BIC(BIC_CorWatt))
outp += sprintf(outp, "%sCorWatt", (printed++ ? delim : ""));
if (DO_BIC(BIC_GFXWatt))
outp += sprintf(outp, "%sGFXWatt", (printed++ ? delim : ""));
if (DO_BIC(BIC_RAMWatt))
outp += sprintf(outp, "%sRAMWatt", (printed++ ? delim : ""));
if (DO_BIC(BIC_PKG__))
outp += sprintf(outp, "%sPKG_%%", (printed++ ? delim : ""));
if (DO_BIC(BIC_RAM__))
outp += sprintf(outp, "%sRAM_%%", (printed++ ? delim : ""));
} else if (do_rapl && rapl_joules) {
if (DO_BIC(BIC_Pkg_J))
outp += sprintf(outp, "%sPkg_J", (printed++ ? delim : ""));
if (DO_BIC(BIC_Cor_J))
outp += sprintf(outp, "%sCor_J", (printed++ ? delim : ""));
if (DO_BIC(BIC_GFX_J))
outp += sprintf(outp, "%sGFX_J", (printed++ ? delim : ""));
if (DO_BIC(BIC_RAM_J))
outp += sprintf(outp, "%sRAM_J", (printed++ ? delim : ""));
if (DO_BIC(BIC_PKG__))
outp += sprintf(outp, "%sPKG_%%", (printed++ ? delim : ""));
if (DO_BIC(BIC_RAM__))
outp += sprintf(outp, "%sRAM_%%", (printed++ ? delim : ""));
}
for (mp = sys.pp; mp; mp = mp->next) {
if (mp->format == FORMAT_RAW) {
if (mp->width == 64)
outp += sprintf(outp, "%s%18.18s", delim, mp->name);
else
outp += sprintf(outp, "%s%10.10s", delim, mp->name);
} else {
if ((mp->type == COUNTER_ITEMS) && sums_need_wide_columns)
outp += sprintf(outp, "%s%8s", delim, mp->name);
else
outp += sprintf(outp, "%s%s", delim, mp->name);
}
}
outp += sprintf(outp, "\n");
}
int dump_counters(struct thread_data *t, struct core_data *c,
struct pkg_data *p)
{
int i;
struct msr_counter *mp;
outp += sprintf(outp, "t %p, c %p, p %p\n", t, c, p);
if (t) {
outp += sprintf(outp, "CPU: %d flags 0x%x\n",
t->cpu_id, t->flags);
outp += sprintf(outp, "TSC: %016llX\n", t->tsc);
outp += sprintf(outp, "aperf: %016llX\n", t->aperf);
outp += sprintf(outp, "mperf: %016llX\n", t->mperf);
outp += sprintf(outp, "c1: %016llX\n", t->c1);
if (DO_BIC(BIC_IRQ))
outp += sprintf(outp, "IRQ: %lld\n", t->irq_count);
if (DO_BIC(BIC_SMI))
outp += sprintf(outp, "SMI: %d\n", t->smi_count);
for (i = 0, mp = sys.tp; mp; i++, mp = mp->next) {
outp += sprintf(outp, "tADDED [%d] msr0x%x: %08llX\n",
i, mp->msr_num, t->counter[i]);
}
}
if (c) {
outp += sprintf(outp, "core: %d\n", c->core_id);
outp += sprintf(outp, "c3: %016llX\n", c->c3);
outp += sprintf(outp, "c6: %016llX\n", c->c6);
outp += sprintf(outp, "c7: %016llX\n", c->c7);
outp += sprintf(outp, "DTS: %dC\n", c->core_temp_c);
for (i = 0, mp = sys.cp; mp; i++, mp = mp->next) {
outp += sprintf(outp, "cADDED [%d] msr0x%x: %08llX\n",
i, mp->msr_num, c->counter[i]);
}
outp += sprintf(outp, "mc6_us: %016llX\n", c->mc6_us);
}
if (p) {
outp += sprintf(outp, "package: %d\n", p->package_id);
outp += sprintf(outp, "Weighted cores: %016llX\n", p->pkg_wtd_core_c0);
outp += sprintf(outp, "Any cores: %016llX\n", p->pkg_any_core_c0);
outp += sprintf(outp, "Any GFX: %016llX\n", p->pkg_any_gfxe_c0);
outp += sprintf(outp, "CPU + GFX: %016llX\n", p->pkg_both_core_gfxe_c0);
outp += sprintf(outp, "pc2: %016llX\n", p->pc2);
if (DO_BIC(BIC_Pkgpc3))
outp += sprintf(outp, "pc3: %016llX\n", p->pc3);
if (DO_BIC(BIC_Pkgpc6))
outp += sprintf(outp, "pc6: %016llX\n", p->pc6);
if (DO_BIC(BIC_Pkgpc7))
outp += sprintf(outp, "pc7: %016llX\n", p->pc7);
outp += sprintf(outp, "pc8: %016llX\n", p->pc8);
outp += sprintf(outp, "pc9: %016llX\n", p->pc9);
outp += sprintf(outp, "pc10: %016llX\n", p->pc10);
outp += sprintf(outp, "Joules PKG: %0X\n", p->energy_pkg);
outp += sprintf(outp, "Joules COR: %0X\n", p->energy_cores);
outp += sprintf(outp, "Joules GFX: %0X\n", p->energy_gfx);
outp += sprintf(outp, "Joules RAM: %0X\n", p->energy_dram);
outp += sprintf(outp, "Throttle PKG: %0X\n",
p->rapl_pkg_perf_status);
outp += sprintf(outp, "Throttle RAM: %0X\n",
p->rapl_dram_perf_status);
outp += sprintf(outp, "PTM: %dC\n", p->pkg_temp_c);
for (i = 0, mp = sys.pp; mp; i++, mp = mp->next) {
outp += sprintf(outp, "pADDED [%d] msr0x%x: %08llX\n",
i, mp->msr_num, p->counter[i]);
}
}
outp += sprintf(outp, "\n");
return 0;
}
/*
* column formatting convention & formats
*/
int format_counters(struct thread_data *t, struct core_data *c,
struct pkg_data *p)
{
double interval_float, tsc;
char *fmt8;
int i;
struct msr_counter *mp;
char *delim = "\t";
int printed = 0;
/* if showing only 1st thread in core and this isn't one, bail out */
if (show_core_only && !(t->flags & CPU_IS_FIRST_THREAD_IN_CORE))
return 0;
/* if showing only 1st thread in pkg and this isn't one, bail out */
if (show_pkg_only && !(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE))
return 0;
/*if not summary line and --cpu is used */
if ((t != &average.threads) &&
(cpu_subset && !CPU_ISSET_S(t->cpu_id, cpu_subset_size, cpu_subset)))
return 0;
if (debug) {
/* on each row, print how many usec each timestamp took to gather */
struct timeval tv;
timersub(&t->tv_end, &t->tv_begin, &tv);
outp += sprintf(outp, "%5ld\t", tv.tv_sec * 1000000 + tv.tv_usec);
}
interval_float = tv_delta.tv_sec + tv_delta.tv_usec/1000000.0;
tsc = t->tsc * tsc_tweak;
/* topo columns, print blanks on 1st (average) line */
if (t == &average.threads) {
if (DO_BIC(BIC_Package))
outp += sprintf(outp, "%s-", (printed++ ? delim : ""));
if (DO_BIC(BIC_Core))
outp += sprintf(outp, "%s-", (printed++ ? delim : ""));
if (DO_BIC(BIC_CPU))
outp += sprintf(outp, "%s-", (printed++ ? delim : ""));
} else {
if (DO_BIC(BIC_Package)) {
if (p)
outp += sprintf(outp, "%s%d", (printed++ ? delim : ""), p->package_id);
else
outp += sprintf(outp, "%s-", (printed++ ? delim : ""));
}
if (DO_BIC(BIC_Core)) {
if (c)
outp += sprintf(outp, "%s%d", (printed++ ? delim : ""), c->core_id);
else
outp += sprintf(outp, "%s-", (printed++ ? delim : ""));
}
if (DO_BIC(BIC_CPU))
outp += sprintf(outp, "%s%d", (printed++ ? delim : ""), t->cpu_id);
}
if (DO_BIC(BIC_Avg_MHz))
outp += sprintf(outp, "%s%.0f", (printed++ ? delim : ""),
1.0 / units * t->aperf / interval_float);
if (DO_BIC(BIC_Busy))
outp += sprintf(outp, "%s%.2f", (printed++ ? delim : ""), 100.0 * t->mperf/tsc);
if (DO_BIC(BIC_Bzy_MHz)) {
if (has_base_hz)
outp += sprintf(outp, "%s%.0f", (printed++ ? delim : ""), base_hz / units * t->aperf / t->mperf);
else
outp += sprintf(outp, "%s%.0f", (printed++ ? delim : ""),
tsc / units * t->aperf / t->mperf / interval_float);
}
if (DO_BIC(BIC_TSC_MHz))
outp += sprintf(outp, "%s%.0f", (printed++ ? delim : ""), 1.0 * t->tsc/units/interval_float);
/* IRQ */
if (DO_BIC(BIC_IRQ)) {
if (sums_need_wide_columns)
outp += sprintf(outp, "%s%8lld", (printed++ ? delim : ""), t->irq_count);
else
outp += sprintf(outp, "%s%lld", (printed++ ? delim : ""), t->irq_count);
}
/* SMI */
if (DO_BIC(BIC_SMI))
outp += sprintf(outp, "%s%d", (printed++ ? delim : ""), t->smi_count);
/* Added counters */
for (i = 0, mp = sys.tp; mp; i++, mp = mp->next) {
if (mp->format == FORMAT_RAW) {
if (mp->width == 32)
outp += sprintf(outp, "%s0x%08x", (printed++ ? delim : ""), (unsigned int) t->counter[i]);
else
outp += sprintf(outp, "%s0x%016llx", (printed++ ? delim : ""), t->counter[i]);
} else if (mp->format == FORMAT_DELTA) {
if ((mp->type == COUNTER_ITEMS) && sums_need_wide_columns)
outp += sprintf(outp, "%s%8lld", (printed++ ? delim : ""), t->counter[i]);
else
outp += sprintf(outp, "%s%lld", (printed++ ? delim : ""), t->counter[i]);
} else if (mp->format == FORMAT_PERCENT) {
if (mp->type == COUNTER_USEC)
outp += sprintf(outp, "%s%.2f", (printed++ ? delim : ""), t->counter[i]/interval_float/10000);
else
outp += sprintf(outp, "%s%.2f", (printed++ ? delim : ""), 100.0 * t->counter[i]/tsc);
}
}
/* C1 */
if (DO_BIC(BIC_CPU_c1))
outp += sprintf(outp, "%s%.2f", (printed++ ? delim : ""), 100.0 * t->c1/tsc);
/* print per-core data only for 1st thread in core */
if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE))
goto done;
if (DO_BIC(BIC_CPU_c3) && !do_slm_cstates && !do_knl_cstates)
outp += sprintf(outp, "%s%.2f", (printed++ ? delim : ""), 100.0 * c->c3/tsc);
if (DO_BIC(BIC_CPU_c6))
outp += sprintf(outp, "%s%.2f", (printed++ ? delim : ""), 100.0 * c->c6/tsc);
if (DO_BIC(BIC_CPU_c7))
outp += sprintf(outp, "%s%.2f", (printed++ ? delim : ""), 100.0 * c->c7/tsc);
/* Mod%c6 */
if (DO_BIC(BIC_Mod_c6))
outp += sprintf(outp, "%s%.2f", (printed++ ? delim : ""), 100.0 * c->mc6_us / tsc);
if (DO_BIC(BIC_CoreTmp))
outp += sprintf(outp, "%s%d", (printed++ ? delim : ""), c->core_temp_c);
for (i = 0, mp = sys.cp; mp; i++, mp = mp->next) {
if (mp->format == FORMAT_RAW) {
if (mp->width == 32)
outp += sprintf(outp, "%s0x%08x", (printed++ ? delim : ""), (unsigned int) c->counter[i]);
else
outp += sprintf(outp, "%s0x%016llx", (printed++ ? delim : ""), c->counter[i]);
} else if (mp->format == FORMAT_DELTA) {
if ((mp->type == COUNTER_ITEMS) && sums_need_wide_columns)
outp += sprintf(outp, "%s%8lld", (printed++ ? delim : ""), c->counter[i]);
else
outp += sprintf(outp, "%s%lld", (printed++ ? delim : ""), c->counter[i]);
} else if (mp->format == FORMAT_PERCENT) {
outp += sprintf(outp, "%s%.2f", (printed++ ? delim : ""), 100.0 * c->counter[i]/tsc);
}
}
/* print per-package data only for 1st core in package */
if (!(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE))
goto done;
/* PkgTmp */
if (DO_BIC(BIC_PkgTmp))
outp += sprintf(outp, "%s%d", (printed++ ? delim : ""), p->pkg_temp_c);
/* GFXrc6 */
if (DO_BIC(BIC_GFX_rc6)) {
if (p->gfx_rc6_ms == -1) { /* detect GFX counter reset */
outp += sprintf(outp, "%s**.**", (printed++ ? delim : ""));
} else {
outp += sprintf(outp, "%s%.2f", (printed++ ? delim : ""),
p->gfx_rc6_ms / 10.0 / interval_float);
}
}
/* GFXMHz */
if (DO_BIC(BIC_GFXMHz))
outp += sprintf(outp, "%s%d", (printed++ ? delim : ""), p->gfx_mhz);
/* Totl%C0, Any%C0 GFX%C0 CPUGFX% */
if (DO_BIC(BIC_Totl_c0))
outp += sprintf(outp, "%s%.2f", (printed++ ? delim : ""), 100.0 * p->pkg_wtd_core_c0/tsc);
if (DO_BIC(BIC_Any_c0))
outp += sprintf(outp, "%s%.2f", (printed++ ? delim : ""), 100.0 * p->pkg_any_core_c0/tsc);
if (DO_BIC(BIC_GFX_c0))
outp += sprintf(outp, "%s%.2f", (printed++ ? delim : ""), 100.0 * p->pkg_any_gfxe_c0/tsc);
if (DO_BIC(BIC_CPUGFX))
outp += sprintf(outp, "%s%.2f", (printed++ ? delim : ""), 100.0 * p->pkg_both_core_gfxe_c0/tsc);
if (DO_BIC(BIC_Pkgpc2))
outp += sprintf(outp, "%s%.2f", (printed++ ? delim : ""), 100.0 * p->pc2/tsc);
if (DO_BIC(BIC_Pkgpc3))
outp += sprintf(outp, "%s%.2f", (printed++ ? delim : ""), 100.0 * p->pc3/tsc);
if (DO_BIC(BIC_Pkgpc6))
outp += sprintf(outp, "%s%.2f", (printed++ ? delim : ""), 100.0 * p->pc6/tsc);
if (DO_BIC(BIC_Pkgpc7))
outp += sprintf(outp, "%s%.2f", (printed++ ? delim : ""), 100.0 * p->pc7/tsc);
if (DO_BIC(BIC_Pkgpc8))
outp += sprintf(outp, "%s%.2f", (printed++ ? delim : ""), 100.0 * p->pc8/tsc);
if (DO_BIC(BIC_Pkgpc9))
outp += sprintf(outp, "%s%.2f", (printed++ ? delim : ""), 100.0 * p->pc9/tsc);
if (DO_BIC(BIC_Pkgpc10))
outp += sprintf(outp, "%s%.2f", (printed++ ? delim : ""), 100.0 * p->pc10/tsc);
/*
* If measurement interval exceeds minimum RAPL Joule Counter range,
* indicate that results are suspect by printing "**" in fraction place.
*/
if (interval_float < rapl_joule_counter_range)
fmt8 = "%s%.2f";
else
fmt8 = "%6.0f**";
if (DO_BIC(BIC_PkgWatt))
outp += sprintf(outp, fmt8, (printed++ ? delim : ""), p->energy_pkg * rapl_energy_units / interval_float);
if (DO_BIC(BIC_CorWatt))
outp += sprintf(outp, fmt8, (printed++ ? delim : ""), p->energy_cores * rapl_energy_units / interval_float);
if (DO_BIC(BIC_GFXWatt))
outp += sprintf(outp, fmt8, (printed++ ? delim : ""), p->energy_gfx * rapl_energy_units / interval_float);
if (DO_BIC(BIC_RAMWatt))
outp += sprintf(outp, fmt8, (printed++ ? delim : ""), p->energy_dram * rapl_dram_energy_units / interval_float);
if (DO_BIC(BIC_Pkg_J))
outp += sprintf(outp, fmt8, (printed++ ? delim : ""), p->energy_pkg * rapl_energy_units);
if (DO_BIC(BIC_Cor_J))
outp += sprintf(outp, fmt8, (printed++ ? delim : ""), p->energy_cores * rapl_energy_units);
if (DO_BIC(BIC_GFX_J))
outp += sprintf(outp, fmt8, (printed++ ? delim : ""), p->energy_gfx * rapl_energy_units);
if (DO_BIC(BIC_RAM_J))
outp += sprintf(outp, fmt8, (printed++ ? delim : ""), p->energy_dram * rapl_dram_energy_units);
if (DO_BIC(BIC_PKG__))
outp += sprintf(outp, fmt8, (printed++ ? delim : ""), 100.0 * p->rapl_pkg_perf_status * rapl_time_units / interval_float);
if (DO_BIC(BIC_RAM__))
outp += sprintf(outp, fmt8, (printed++ ? delim : ""), 100.0 * p->rapl_dram_perf_status * rapl_time_units / interval_float);
for (i = 0, mp = sys.pp; mp; i++, mp = mp->next) {
if (mp->format == FORMAT_RAW) {
if (mp->width == 32)
outp += sprintf(outp, "%s0x%08x", (printed++ ? delim : ""), (unsigned int) p->counter[i]);
else
outp += sprintf(outp, "%s0x%016llx", (printed++ ? delim : ""), p->counter[i]);
} else if (mp->format == FORMAT_DELTA) {
if ((mp->type == COUNTER_ITEMS) && sums_need_wide_columns)
outp += sprintf(outp, "%s%8lld", (printed++ ? delim : ""), p->counter[i]);
else
outp += sprintf(outp, "%s%lld", (printed++ ? delim : ""), p->counter[i]);
} else if (mp->format == FORMAT_PERCENT) {
outp += sprintf(outp, "%s%.2f", (printed++ ? delim : ""), 100.0 * p->counter[i]/tsc);
}
}
done:
outp += sprintf(outp, "\n");
return 0;
}
void flush_output_stdout(void)
{
FILE *filep;
if (outf == stderr)
filep = stdout;
else
filep = outf;
fputs(output_buffer, filep);
fflush(filep);
outp = output_buffer;
}
void flush_output_stderr(void)
{
fputs(output_buffer, outf);
fflush(outf);
outp = output_buffer;
}
void format_all_counters(struct thread_data *t, struct core_data *c, struct pkg_data *p)
{
static int printed;
if (!printed || !summary_only)
print_header("\t");
if (topo.num_cpus > 1)
format_counters(&average.threads, &average.cores,
&average.packages);
printed = 1;
if (summary_only)
return;
for_all_cpus(format_counters, t, c, p);
}
#define DELTA_WRAP32(new, old) \
if (new > old) { \
old = new - old; \
} else { \
old = 0x100000000 + new - old; \
}
int
delta_package(struct pkg_data *new, struct pkg_data *old)
{
int i;
struct msr_counter *mp;
if (DO_BIC(BIC_Totl_c0))
old->pkg_wtd_core_c0 = new->pkg_wtd_core_c0 - old->pkg_wtd_core_c0;
if (DO_BIC(BIC_Any_c0))
old->pkg_any_core_c0 = new->pkg_any_core_c0 - old->pkg_any_core_c0;
if (DO_BIC(BIC_GFX_c0))
old->pkg_any_gfxe_c0 = new->pkg_any_gfxe_c0 - old->pkg_any_gfxe_c0;
if (DO_BIC(BIC_CPUGFX))
old->pkg_both_core_gfxe_c0 = new->pkg_both_core_gfxe_c0 - old->pkg_both_core_gfxe_c0;
old->pc2 = new->pc2 - old->pc2;
if (DO_BIC(BIC_Pkgpc3))
old->pc3 = new->pc3 - old->pc3;
if (DO_BIC(BIC_Pkgpc6))
old->pc6 = new->pc6 - old->pc6;
if (DO_BIC(BIC_Pkgpc7))
old->pc7 = new->pc7 - old->pc7;
old->pc8 = new->pc8 - old->pc8;
old->pc9 = new->pc9 - old->pc9;
old->pc10 = new->pc10 - old->pc10;
old->pkg_temp_c = new->pkg_temp_c;
/* flag an error when rc6 counter resets/wraps */
if (old->gfx_rc6_ms > new->gfx_rc6_ms)
old->gfx_rc6_ms = -1;
else
old->gfx_rc6_ms = new->gfx_rc6_ms - old->gfx_rc6_ms;
old->gfx_mhz = new->gfx_mhz;
DELTA_WRAP32(new->energy_pkg, old->energy_pkg);
DELTA_WRAP32(new->energy_cores, old->energy_cores);
DELTA_WRAP32(new->energy_gfx, old->energy_gfx);
DELTA_WRAP32(new->energy_dram, old->energy_dram);
DELTA_WRAP32(new->rapl_pkg_perf_status, old->rapl_pkg_perf_status);
DELTA_WRAP32(new->rapl_dram_perf_status, old->rapl_dram_perf_status);
for (i = 0, mp = sys.pp; mp; i++, mp = mp->next) {
if (mp->format == FORMAT_RAW)
old->counter[i] = new->counter[i];
else
old->counter[i] = new->counter[i] - old->counter[i];
}
return 0;
}
void
delta_core(struct core_data *new, struct core_data *old)
{
int i;
struct msr_counter *mp;
old->c3 = new->c3 - old->c3;
old->c6 = new->c6 - old->c6;
old->c7 = new->c7 - old->c7;
old->core_temp_c = new->core_temp_c;
old->mc6_us = new->mc6_us - old->mc6_us;
for (i = 0, mp = sys.cp; mp; i++, mp = mp->next) {
if (mp->format == FORMAT_RAW)
old->counter[i] = new->counter[i];
else
old->counter[i] = new->counter[i] - old->counter[i];
}
}
/*
* old = new - old
*/
int
delta_thread(struct thread_data *new, struct thread_data *old,
struct core_data *core_delta)
{
int i;
struct msr_counter *mp;
old->tsc = new->tsc - old->tsc;
/* check for TSC < 1 Mcycles over interval */
if (old->tsc < (1000 * 1000))
errx(-3, "Insanely slow TSC rate, TSC stops in idle?\n"
"You can disable all c-states by booting with \"idle=poll\"\n"
"or just the deep ones with \"processor.max_cstate=1\"");
old->c1 = new->c1 - old->c1;
if (DO_BIC(BIC_Avg_MHz) || DO_BIC(BIC_Busy) || DO_BIC(BIC_Bzy_MHz)) {
if ((new->aperf > old->aperf) && (new->mperf > old->mperf)) {
old->aperf = new->aperf - old->aperf;
old->mperf = new->mperf - old->mperf;
} else {
return -1;
}
}
if (use_c1_residency_msr) {
/*
* Some models have a dedicated C1 residency MSR,
* which should be more accurate than the derivation below.
*/
} else {
/*
* As counter collection is not atomic,
* it is possible for mperf's non-halted cycles + idle states
* to exceed TSC's all cycles: show c1 = 0% in that case.
*/
if ((old->mperf + core_delta->c3 + core_delta->c6 + core_delta->c7) > (old->tsc * tsc_tweak))
old->c1 = 0;
else {
/* normal case, derive c1 */
old->c1 = (old->tsc * tsc_tweak) - old->mperf - core_delta->c3
- core_delta->c6 - core_delta->c7;
}
}
if (old->mperf == 0) {
if (debug > 1)
fprintf(outf, "cpu%d MPERF 0!\n", old->cpu_id);
old->mperf = 1; /* divide by 0 protection */
}
if (DO_BIC(BIC_IRQ))
old->irq_count = new->irq_count - old->irq_count;
if (DO_BIC(BIC_SMI))
old->smi_count = new->smi_count - old->smi_count;
for (i = 0, mp = sys.tp; mp; i++, mp = mp->next) {
if (mp->format == FORMAT_RAW)
old->counter[i] = new->counter[i];
else
old->counter[i] = new->counter[i] - old->counter[i];
}
return 0;
}
int delta_cpu(struct thread_data *t, struct core_data *c,
struct pkg_data *p, struct thread_data *t2,
struct core_data *c2, struct pkg_data *p2)
{
int retval = 0;
/* calculate core delta only for 1st thread in core */
if (t->flags & CPU_IS_FIRST_THREAD_IN_CORE)
delta_core(c, c2);
/* always calculate thread delta */
retval = delta_thread(t, t2, c2); /* c2 is core delta */
if (retval)
return retval;
/* calculate package delta only for 1st core in package */
if (t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE)
retval = delta_package(p, p2);
return retval;
}
void clear_counters(struct thread_data *t, struct core_data *c, struct pkg_data *p)
{
int i;
struct msr_counter *mp;
t->tsc = 0;
t->aperf = 0;
t->mperf = 0;
t->c1 = 0;
t->irq_count = 0;
t->smi_count = 0;
/* tells format_counters to dump all fields from this set */
t->flags = CPU_IS_FIRST_THREAD_IN_CORE | CPU_IS_FIRST_CORE_IN_PACKAGE;
c->c3 = 0;
c->c6 = 0;
c->c7 = 0;
c->mc6_us = 0;
c->core_temp_c = 0;
p->pkg_wtd_core_c0 = 0;
p->pkg_any_core_c0 = 0;
p->pkg_any_gfxe_c0 = 0;
p->pkg_both_core_gfxe_c0 = 0;
p->pc2 = 0;
if (DO_BIC(BIC_Pkgpc3))
p->pc3 = 0;
if (DO_BIC(BIC_Pkgpc6))
p->pc6 = 0;
if (DO_BIC(BIC_Pkgpc7))
p->pc7 = 0;
p->pc8 = 0;
p->pc9 = 0;
p->pc10 = 0;
p->energy_pkg = 0;
p->energy_dram = 0;
p->energy_cores = 0;
p->energy_gfx = 0;
p->rapl_pkg_perf_status = 0;
p->rapl_dram_perf_status = 0;
p->pkg_temp_c = 0;
p->gfx_rc6_ms = 0;
p->gfx_mhz = 0;
for (i = 0, mp = sys.tp; mp; i++, mp = mp->next)
t->counter[i] = 0;
for (i = 0, mp = sys.cp; mp; i++, mp = mp->next)
c->counter[i] = 0;
for (i = 0, mp = sys.pp; mp; i++, mp = mp->next)
p->counter[i] = 0;
}
int sum_counters(struct thread_data *t, struct core_data *c,
struct pkg_data *p)
{
int i;
struct msr_counter *mp;
average.threads.tsc += t->tsc;
average.threads.aperf += t->aperf;
average.threads.mperf += t->mperf;
average.threads.c1 += t->c1;
average.threads.irq_count += t->irq_count;
average.threads.smi_count += t->smi_count;
for (i = 0, mp = sys.tp; mp; i++, mp = mp->next) {
if (mp->format == FORMAT_RAW)
continue;
average.threads.counter[i] += t->counter[i];
}
/* sum per-core values only for 1st thread in core */
if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE))
return 0;
average.cores.c3 += c->c3;
average.cores.c6 += c->c6;
average.cores.c7 += c->c7;
average.cores.mc6_us += c->mc6_us;
average.cores.core_temp_c = MAX(average.cores.core_temp_c, c->core_temp_c);
for (i = 0, mp = sys.cp; mp; i++, mp = mp->next) {
if (mp->format == FORMAT_RAW)
continue;
average.cores.counter[i] += c->counter[i];
}
/* sum per-pkg values only for 1st core in pkg */
if (!(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE))
return 0;
if (DO_BIC(BIC_Totl_c0))
average.packages.pkg_wtd_core_c0 += p->pkg_wtd_core_c0;
if (DO_BIC(BIC_Any_c0))
average.packages.pkg_any_core_c0 += p->pkg_any_core_c0;
if (DO_BIC(BIC_GFX_c0))
average.packages.pkg_any_gfxe_c0 += p->pkg_any_gfxe_c0;
if (DO_BIC(BIC_CPUGFX))
average.packages.pkg_both_core_gfxe_c0 += p->pkg_both_core_gfxe_c0;
average.packages.pc2 += p->pc2;
if (DO_BIC(BIC_Pkgpc3))
average.packages.pc3 += p->pc3;
if (DO_BIC(BIC_Pkgpc6))
average.packages.pc6 += p->pc6;
if (DO_BIC(BIC_Pkgpc7))
average.packages.pc7 += p->pc7;
average.packages.pc8 += p->pc8;
average.packages.pc9 += p->pc9;
average.packages.pc10 += p->pc10;
average.packages.energy_pkg += p->energy_pkg;
average.packages.energy_dram += p->energy_dram;
average.packages.energy_cores += p->energy_cores;
average.packages.energy_gfx += p->energy_gfx;
average.packages.gfx_rc6_ms = p->gfx_rc6_ms;
average.packages.gfx_mhz = p->gfx_mhz;
average.packages.pkg_temp_c = MAX(average.packages.pkg_temp_c, p->pkg_temp_c);
average.packages.rapl_pkg_perf_status += p->rapl_pkg_perf_status;
average.packages.rapl_dram_perf_status += p->rapl_dram_perf_status;
for (i = 0, mp = sys.pp; mp; i++, mp = mp->next) {
if (mp->format == FORMAT_RAW)
continue;
average.packages.counter[i] += p->counter[i];
}
return 0;
}
/*
* sum the counters for all cpus in the system
* compute the weighted average
*/
void compute_average(struct thread_data *t, struct core_data *c,
struct pkg_data *p)
{
int i;
struct msr_counter *mp;
clear_counters(&average.threads, &average.cores, &average.packages);
for_all_cpus(sum_counters, t, c, p);
average.threads.tsc /= topo.num_cpus;
average.threads.aperf /= topo.num_cpus;
average.threads.mperf /= topo.num_cpus;
average.threads.c1 /= topo.num_cpus;
if (average.threads.irq_count > 9999999)
sums_need_wide_columns = 1;
average.cores.c3 /= topo.num_cores;
average.cores.c6 /= topo.num_cores;
average.cores.c7 /= topo.num_cores;
average.cores.mc6_us /= topo.num_cores;
if (DO_BIC(BIC_Totl_c0))
average.packages.pkg_wtd_core_c0 /= topo.num_packages;
if (DO_BIC(BIC_Any_c0))
average.packages.pkg_any_core_c0 /= topo.num_packages;
if (DO_BIC(BIC_GFX_c0))
average.packages.pkg_any_gfxe_c0 /= topo.num_packages;
if (DO_BIC(BIC_CPUGFX))
average.packages.pkg_both_core_gfxe_c0 /= topo.num_packages;
average.packages.pc2 /= topo.num_packages;
if (DO_BIC(BIC_Pkgpc3))
average.packages.pc3 /= topo.num_packages;
if (DO_BIC(BIC_Pkgpc6))
average.packages.pc6 /= topo.num_packages;
if (DO_BIC(BIC_Pkgpc7))
average.packages.pc7 /= topo.num_packages;
average.packages.pc8 /= topo.num_packages;
average.packages.pc9 /= topo.num_packages;
average.packages.pc10 /= topo.num_packages;
for (i = 0, mp = sys.tp; mp; i++, mp = mp->next) {
if (mp->format == FORMAT_RAW)
continue;
if (mp->type == COUNTER_ITEMS) {
if (average.threads.counter[i] > 9999999)
sums_need_wide_columns = 1;
continue;
}
average.threads.counter[i] /= topo.num_cpus;
}
for (i = 0, mp = sys.cp; mp; i++, mp = mp->next) {
if (mp->format == FORMAT_RAW)
continue;
if (mp->type == COUNTER_ITEMS) {
if (average.cores.counter[i] > 9999999)
sums_need_wide_columns = 1;
}
average.cores.counter[i] /= topo.num_cores;
}
for (i = 0, mp = sys.pp; mp; i++, mp = mp->next) {
if (mp->format == FORMAT_RAW)
continue;
if (mp->type == COUNTER_ITEMS) {
if (average.packages.counter[i] > 9999999)
sums_need_wide_columns = 1;
}
average.packages.counter[i] /= topo.num_packages;
}
}
static unsigned long long rdtsc(void)
{
unsigned int low, high;
asm volatile("rdtsc" : "=a" (low), "=d" (high));
return low | ((unsigned long long)high) << 32;
}
/*
* Open a file, and exit on failure
*/
FILE *fopen_or_die(const char *path, const char *mode)
{
FILE *filep = fopen(path, mode);
if (!filep)
err(1, "%s: open failed", path);
return filep;
}
/*
* snapshot_sysfs_counter()
*
* return snapshot of given counter
*/
unsigned long long snapshot_sysfs_counter(char *path)
{
FILE *fp;
int retval;
unsigned long long counter;
fp = fopen_or_die(path, "r");
retval = fscanf(fp, "%lld", &counter);
if (retval != 1)
err(1, "snapshot_sysfs_counter(%s)", path);
fclose(fp);
return counter;
}
int get_mp(int cpu, struct msr_counter *mp, unsigned long long *counterp)
{
if (mp->msr_num != 0) {
if (get_msr(cpu, mp->msr_num, counterp))
return -1;
} else {
char path[128];
if (mp->flags & SYSFS_PERCPU) {
sprintf(path, "/sys/devices/system/cpu/cpu%d/%s",
cpu, mp->path);
*counterp = snapshot_sysfs_counter(path);
} else {
*counterp = snapshot_sysfs_counter(mp->path);
}
}
return 0;
}
/*
* get_counters(...)
* migrate to cpu
* acquire and record local counters for that cpu
*/
int get_counters(struct thread_data *t, struct core_data *c, struct pkg_data *p)
{
int cpu = t->cpu_id;
unsigned long long msr;
int aperf_mperf_retry_count = 0;
struct msr_counter *mp;
int i;
gettimeofday(&t->tv_begin, (struct timezone *)NULL);
if (cpu_migrate(cpu)) {
fprintf(outf, "Could not migrate to CPU %d\n", cpu);
return -1;
}
retry:
t->tsc = rdtsc(); /* we are running on local CPU of interest */
if (DO_BIC(BIC_Avg_MHz) || DO_BIC(BIC_Busy) || DO_BIC(BIC_Bzy_MHz)) {
unsigned long long tsc_before, tsc_between, tsc_after, aperf_time, mperf_time;
/*
* The TSC, APERF and MPERF must be read together for
* APERF/MPERF and MPERF/TSC to give accurate results.
*
* Unfortunately, APERF and MPERF are read by
* individual system call, so delays may occur
* between them. If the time to read them
* varies by a large amount, we re-read them.
*/
/*
* This initial dummy APERF read has been seen to
* reduce jitter in the subsequent reads.
*/
if (get_msr(cpu, MSR_IA32_APERF, &t->aperf))
return -3;
t->tsc = rdtsc(); /* re-read close to APERF */
tsc_before = t->tsc;
if (get_msr(cpu, MSR_IA32_APERF, &t->aperf))
return -3;
tsc_between = rdtsc();
if (get_msr(cpu, MSR_IA32_MPERF, &t->mperf))
return -4;
tsc_after = rdtsc();
aperf_time = tsc_between - tsc_before;
mperf_time = tsc_after - tsc_between;
/*
* If the system call latency to read APERF and MPERF
* differ by more than 2x, then try again.
*/
if ((aperf_time > (2 * mperf_time)) || (mperf_time > (2 * aperf_time))) {
aperf_mperf_retry_count++;
if (aperf_mperf_retry_count < 5)
goto retry;
else
warnx("cpu%d jitter %lld %lld",
cpu, aperf_time, mperf_time);
}
aperf_mperf_retry_count = 0;
t->aperf = t->aperf * aperf_mperf_multiplier;
t->mperf = t->mperf * aperf_mperf_multiplier;
}
if (DO_BIC(BIC_IRQ))
t->irq_count = irqs_per_cpu[cpu];
if (DO_BIC(BIC_SMI)) {
if (get_msr(cpu, MSR_SMI_COUNT, &msr))
return -5;
t->smi_count = msr & 0xFFFFFFFF;
}
if (DO_BIC(BIC_CPU_c1) && use_c1_residency_msr) {
if (get_msr(cpu, MSR_CORE_C1_RES, &t->c1))
return -6;
}
for (i = 0, mp = sys.tp; mp; i++, mp = mp->next) {
if (get_mp(cpu, mp, &t->counter[i]))
return -10;
}
/* collect core counters only for 1st thread in core */
if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE))
goto done;
if (DO_BIC(BIC_CPU_c3) && !do_slm_cstates && !do_knl_cstates) {
if (get_msr(cpu, MSR_CORE_C3_RESIDENCY, &c->c3))
return -6;
}
if (DO_BIC(BIC_CPU_c6) && !do_knl_cstates) {
if (get_msr(cpu, MSR_CORE_C6_RESIDENCY, &c->c6))
return -7;
} else if (do_knl_cstates) {
if (get_msr(cpu, MSR_KNL_CORE_C6_RESIDENCY, &c->c6))
return -7;
}
if (DO_BIC(BIC_CPU_c7))
if (get_msr(cpu, MSR_CORE_C7_RESIDENCY, &c->c7))
return -8;
if (DO_BIC(BIC_Mod_c6))
if (get_msr(cpu, MSR_MODULE_C6_RES_MS, &c->mc6_us))
return -8;
if (DO_BIC(BIC_CoreTmp)) {
if (get_msr(cpu, MSR_IA32_THERM_STATUS, &msr))
return -9;
c->core_temp_c = tcc_activation_temp - ((msr >> 16) & 0x7F);
}
for (i = 0, mp = sys.cp; mp; i++, mp = mp->next) {
if (get_mp(cpu, mp, &c->counter[i]))
return -10;
}
/* collect package counters only for 1st core in package */
if (!(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE))
goto done;
if (DO_BIC(BIC_Totl_c0)) {
if (get_msr(cpu, MSR_PKG_WEIGHTED_CORE_C0_RES, &p->pkg_wtd_core_c0))
return -10;
}
if (DO_BIC(BIC_Any_c0)) {
if (get_msr(cpu, MSR_PKG_ANY_CORE_C0_RES, &p->pkg_any_core_c0))
return -11;
}
if (DO_BIC(BIC_GFX_c0)) {
if (get_msr(cpu, MSR_PKG_ANY_GFXE_C0_RES, &p->pkg_any_gfxe_c0))
return -12;
}
if (DO_BIC(BIC_CPUGFX)) {
if (get_msr(cpu, MSR_PKG_BOTH_CORE_GFXE_C0_RES, &p->pkg_both_core_gfxe_c0))
return -13;
}
if (DO_BIC(BIC_Pkgpc3))
if (get_msr(cpu, MSR_PKG_C3_RESIDENCY, &p->pc3))
return -9;
if (DO_BIC(BIC_Pkgpc6)) {
if (do_slm_cstates) {
if (get_msr(cpu, MSR_ATOM_PKG_C6_RESIDENCY, &p->pc6))
return -10;
} else {
if (get_msr(cpu, MSR_PKG_C6_RESIDENCY, &p->pc6))
return -10;
}
}
if (DO_BIC(BIC_Pkgpc2))
if (get_msr(cpu, MSR_PKG_C2_RESIDENCY, &p->pc2))
return -11;
if (DO_BIC(BIC_Pkgpc7))
if (get_msr(cpu, MSR_PKG_C7_RESIDENCY, &p->pc7))
return -12;
if (DO_BIC(BIC_Pkgpc8))
if (get_msr(cpu, MSR_PKG_C8_RESIDENCY, &p->pc8))
return -13;
if (DO_BIC(BIC_Pkgpc9))
if (get_msr(cpu, MSR_PKG_C9_RESIDENCY, &p->pc9))
return -13;
if (DO_BIC(BIC_Pkgpc10))
if (get_msr(cpu, MSR_PKG_C10_RESIDENCY, &p->pc10))
return -13;
if (do_rapl & RAPL_PKG) {
if (get_msr(cpu, MSR_PKG_ENERGY_STATUS, &msr))
return -13;
p->energy_pkg = msr & 0xFFFFFFFF;
}
if (do_rapl & RAPL_CORES_ENERGY_STATUS) {
if (get_msr(cpu, MSR_PP0_ENERGY_STATUS, &msr))
return -14;
p->energy_cores = msr & 0xFFFFFFFF;
}
if (do_rapl & RAPL_DRAM) {
if (get_msr(cpu, MSR_DRAM_ENERGY_STATUS, &msr))
return -15;
p->energy_dram = msr & 0xFFFFFFFF;
}
if (do_rapl & RAPL_GFX) {
if (get_msr(cpu, MSR_PP1_ENERGY_STATUS, &msr))
return -16;
p->energy_gfx = msr & 0xFFFFFFFF;
}
if (do_rapl & RAPL_PKG_PERF_STATUS) {
if (get_msr(cpu, MSR_PKG_PERF_STATUS, &msr))
return -16;
p->rapl_pkg_perf_status = msr & 0xFFFFFFFF;
}
if (do_rapl & RAPL_DRAM_PERF_STATUS) {
if (get_msr(cpu, MSR_DRAM_PERF_STATUS, &msr))
return -16;
p->rapl_dram_perf_status = msr & 0xFFFFFFFF;
}
if (DO_BIC(BIC_PkgTmp)) {
if (get_msr(cpu, MSR_IA32_PACKAGE_THERM_STATUS, &msr))
return -17;
p->pkg_temp_c = tcc_activation_temp - ((msr >> 16) & 0x7F);
}
if (DO_BIC(BIC_GFX_rc6))
p->gfx_rc6_ms = gfx_cur_rc6_ms;
if (DO_BIC(BIC_GFXMHz))
p->gfx_mhz = gfx_cur_mhz;
for (i = 0, mp = sys.pp; mp; i++, mp = mp->next) {
if (get_mp(cpu, mp, &p->counter[i]))
return -10;
}
done:
gettimeofday(&t->tv_end, (struct timezone *)NULL);
return 0;
}
/*
* MSR_PKG_CST_CONFIG_CONTROL decoding for pkg_cstate_limit:
* If you change the values, note they are used both in comparisons
* (>= PCL__7) and to index pkg_cstate_limit_strings[].
*/
#define PCLUKN 0 /* Unknown */
#define PCLRSV 1 /* Reserved */
#define PCL__0 2 /* PC0 */
#define PCL__1 3 /* PC1 */
#define PCL__2 4 /* PC2 */
#define PCL__3 5 /* PC3 */
#define PCL__4 6 /* PC4 */
#define PCL__6 7 /* PC6 */
#define PCL_6N 8 /* PC6 No Retention */
#define PCL_6R 9 /* PC6 Retention */
#define PCL__7 10 /* PC7 */
#define PCL_7S 11 /* PC7 Shrink */
#define PCL__8 12 /* PC8 */
#define PCL__9 13 /* PC9 */
#define PCLUNL 14 /* Unlimited */
int pkg_cstate_limit = PCLUKN;
char *pkg_cstate_limit_strings[] = { "reserved", "unknown", "pc0", "pc1", "pc2",
"pc3", "pc4", "pc6", "pc6n", "pc6r", "pc7", "pc7s", "pc8", "pc9", "unlimited"};
int nhm_pkg_cstate_limits[16] = {PCL__0, PCL__1, PCL__3, PCL__6, PCL__7, PCLRSV, PCLRSV, PCLUNL, PCLRSV, PCLRSV, PCLRSV, PCLRSV, PCLRSV, PCLRSV, PCLRSV, PCLRSV};
int snb_pkg_cstate_limits[16] = {PCL__0, PCL__2, PCL_6N, PCL_6R, PCL__7, PCL_7S, PCLRSV, PCLUNL, PCLRSV, PCLRSV, PCLRSV, PCLRSV, PCLRSV, PCLRSV, PCLRSV, PCLRSV};
int hsw_pkg_cstate_limits[16] = {PCL__0, PCL__2, PCL__3, PCL__6, PCL__7, PCL_7S, PCL__8, PCL__9, PCLUNL, PCLRSV, PCLRSV, PCLRSV, PCLRSV, PCLRSV, PCLRSV, PCLRSV};
int slv_pkg_cstate_limits[16] = {PCL__0, PCL__1, PCLRSV, PCLRSV, PCL__4, PCLRSV, PCL__6, PCL__7, PCLRSV, PCLRSV, PCLRSV, PCLRSV, PCLRSV, PCLRSV, PCL__6, PCL__7};
int amt_pkg_cstate_limits[16] = {PCLUNL, PCL__1, PCL__2, PCLRSV, PCLRSV, PCLRSV, PCL__6, PCL__7, PCLRSV, PCLRSV, PCLRSV, PCLRSV, PCLRSV, PCLRSV, PCLRSV, PCLRSV};
int phi_pkg_cstate_limits[16] = {PCL__0, PCL__2, PCL_6N, PCL_6R, PCLRSV, PCLRSV, PCLRSV, PCLUNL, PCLRSV, PCLRSV, PCLRSV, PCLRSV, PCLRSV, PCLRSV, PCLRSV, PCLRSV};
int bxt_pkg_cstate_limits[16] = {PCL__0, PCL__2, PCLUNL, PCLRSV, PCLRSV, PCLRSV, PCLRSV, PCLRSV, PCLRSV, PCLRSV, PCLRSV, PCLRSV, PCLRSV, PCLRSV, PCLRSV, PCLRSV};
int skx_pkg_cstate_limits[16] = {PCL__0, PCL__2, PCL_6N, PCL_6R, PCLRSV, PCLRSV, PCLRSV, PCLRSV, PCLUNL, PCLRSV, PCLRSV, PCLRSV, PCLRSV, PCLRSV, PCLRSV, PCLRSV};
static void
calculate_tsc_tweak()
{
tsc_tweak = base_hz / tsc_hz;
}
static void
dump_nhm_platform_info(void)
{
unsigned long long msr;
unsigned int ratio;
get_msr(base_cpu, MSR_PLATFORM_INFO, &msr);
fprintf(outf, "cpu%d: MSR_PLATFORM_INFO: 0x%08llx\n", base_cpu, msr);
ratio = (msr >> 40) & 0xFF;
fprintf(outf, "%d * %.1f = %.1f MHz max efficiency frequency\n",
ratio, bclk, ratio * bclk);
ratio = (msr >> 8) & 0xFF;
fprintf(outf, "%d * %.1f = %.1f MHz base frequency\n",
ratio, bclk, ratio * bclk);
get_msr(base_cpu, MSR_IA32_POWER_CTL, &msr);
fprintf(outf, "cpu%d: MSR_IA32_POWER_CTL: 0x%08llx (C1E auto-promotion: %sabled)\n",
base_cpu, msr, msr & 0x2 ? "EN" : "DIS");
return;
}
static void
dump_hsw_turbo_ratio_limits(void)
{
unsigned long long msr;
unsigned int ratio;
get_msr(base_cpu, MSR_TURBO_RATIO_LIMIT2, &msr);
fprintf(outf, "cpu%d: MSR_TURBO_RATIO_LIMIT2: 0x%08llx\n", base_cpu, msr);
ratio = (msr >> 8) & 0xFF;
if (ratio)
fprintf(outf, "%d * %.1f = %.1f MHz max turbo 18 active cores\n",
ratio, bclk, ratio * bclk);
ratio = (msr >> 0) & 0xFF;
if (ratio)
fprintf(outf, "%d * %.1f = %.1f MHz max turbo 17 active cores\n",
ratio, bclk, ratio * bclk);
return;
}
static void
dump_ivt_turbo_ratio_limits(void)
{
unsigned long long msr;
unsigned int ratio;
get_msr(base_cpu, MSR_TURBO_RATIO_LIMIT1, &msr);
fprintf(outf, "cpu%d: MSR_TURBO_RATIO_LIMIT1: 0x%08llx\n", base_cpu, msr);
ratio = (msr >> 56) & 0xFF;
if (ratio)
fprintf(outf, "%d * %.1f = %.1f MHz max turbo 16 active cores\n",
ratio, bclk, ratio * bclk);
ratio = (msr >> 48) & 0xFF;
if (ratio)
fprintf(outf, "%d * %.1f = %.1f MHz max turbo 15 active cores\n",
ratio, bclk, ratio * bclk);
ratio = (msr >> 40) & 0xFF;
if (ratio)
fprintf(outf, "%d * %.1f = %.1f MHz max turbo 14 active cores\n",
ratio, bclk, ratio * bclk);
ratio = (msr >> 32) & 0xFF;
if (ratio)
fprintf(outf, "%d * %.1f = %.1f MHz max turbo 13 active cores\n",
ratio, bclk, ratio * bclk);
ratio = (msr >> 24) & 0xFF;
if (ratio)
fprintf(outf, "%d * %.1f = %.1f MHz max turbo 12 active cores\n",
ratio, bclk, ratio * bclk);
ratio = (msr >> 16) & 0xFF;
if (ratio)
fprintf(outf, "%d * %.1f = %.1f MHz max turbo 11 active cores\n",
ratio, bclk, ratio * bclk);
ratio = (msr >> 8) & 0xFF;
if (ratio)
fprintf(outf, "%d * %.1f = %.1f MHz max turbo 10 active cores\n",
ratio, bclk, ratio * bclk);
ratio = (msr >> 0) & 0xFF;
if (ratio)
fprintf(outf, "%d * %.1f = %.1f MHz max turbo 9 active cores\n",
ratio, bclk, ratio * bclk);
return;
}
int has_turbo_ratio_group_limits(int family, int model)
{
if (!genuine_intel)
return 0;
switch (model) {
case INTEL_FAM6_ATOM_GOLDMONT:
case INTEL_FAM6_SKYLAKE_X:
case INTEL_FAM6_ATOM_DENVERTON:
return 1;
}
return 0;
}
static void
dump_turbo_ratio_limits(int family, int model)
{
unsigned long long msr, core_counts;
unsigned int ratio, group_size;
get_msr(base_cpu, MSR_TURBO_RATIO_LIMIT, &msr);
fprintf(outf, "cpu%d: MSR_TURBO_RATIO_LIMIT: 0x%08llx\n", base_cpu, msr);
if (has_turbo_ratio_group_limits(family, model)) {
get_msr(base_cpu, MSR_TURBO_RATIO_LIMIT1, &core_counts);
fprintf(outf, "cpu%d: MSR_TURBO_RATIO_LIMIT1: 0x%08llx\n", base_cpu, core_counts);
} else {
core_counts = 0x0807060504030201;
}
ratio = (msr >> 56) & 0xFF;
group_size = (core_counts >> 56) & 0xFF;
if (ratio)
fprintf(outf, "%d * %.1f = %.1f MHz max turbo %d active cores\n",
ratio, bclk, ratio * bclk, group_size);
ratio = (msr >> 48) & 0xFF;
group_size = (core_counts >> 48) & 0xFF;
if (ratio)
fprintf(outf, "%d * %.1f = %.1f MHz max turbo %d active cores\n",
ratio, bclk, ratio * bclk, group_size);
ratio = (msr >> 40) & 0xFF;
group_size = (core_counts >> 40) & 0xFF;
if (ratio)
fprintf(outf, "%d * %.1f = %.1f MHz max turbo %d active cores\n",
ratio, bclk, ratio * bclk, group_size);
ratio = (msr >> 32) & 0xFF;
group_size = (core_counts >> 32) & 0xFF;
if (ratio)
fprintf(outf, "%d * %.1f = %.1f MHz max turbo %d active cores\n",
ratio, bclk, ratio * bclk, group_size);
ratio = (msr >> 24) & 0xFF;
group_size = (core_counts >> 24) & 0xFF;
if (ratio)
fprintf(outf, "%d * %.1f = %.1f MHz max turbo %d active cores\n",
ratio, bclk, ratio * bclk, group_size);
ratio = (msr >> 16) & 0xFF;
group_size = (core_counts >> 16) & 0xFF;
if (ratio)
fprintf(outf, "%d * %.1f = %.1f MHz max turbo %d active cores\n",
ratio, bclk, ratio * bclk, group_size);
ratio = (msr >> 8) & 0xFF;
group_size = (core_counts >> 8) & 0xFF;
if (ratio)
fprintf(outf, "%d * %.1f = %.1f MHz max turbo %d active cores\n",
ratio, bclk, ratio * bclk, group_size);
ratio = (msr >> 0) & 0xFF;
group_size = (core_counts >> 0) & 0xFF;
if (ratio)
fprintf(outf, "%d * %.1f = %.1f MHz max turbo %d active cores\n",
ratio, bclk, ratio * bclk, group_size);
return;
}
static void
dump_atom_turbo_ratio_limits(void)
{
unsigned long long msr;
unsigned int ratio;
get_msr(base_cpu, MSR_ATOM_CORE_RATIOS, &msr);
fprintf(outf, "cpu%d: MSR_ATOM_CORE_RATIOS: 0x%08llx\n", base_cpu, msr & 0xFFFFFFFF);
ratio = (msr >> 0) & 0x3F;
if (ratio)
fprintf(outf, "%d * %.1f = %.1f MHz minimum operating frequency\n",
ratio, bclk, ratio * bclk);
ratio = (msr >> 8) & 0x3F;
if (ratio)
fprintf(outf, "%d * %.1f = %.1f MHz low frequency mode (LFM)\n",
ratio, bclk, ratio * bclk);
ratio = (msr >> 16) & 0x3F;
if (ratio)
fprintf(outf, "%d * %.1f = %.1f MHz base frequency\n",
ratio, bclk, ratio * bclk);
get_msr(base_cpu, MSR_ATOM_CORE_TURBO_RATIOS, &msr);
fprintf(outf, "cpu%d: MSR_ATOM_CORE_TURBO_RATIOS: 0x%08llx\n", base_cpu, msr & 0xFFFFFFFF);
ratio = (msr >> 24) & 0x3F;
if (ratio)
fprintf(outf, "%d * %.1f = %.1f MHz max turbo 4 active cores\n",
ratio, bclk, ratio * bclk);
ratio = (msr >> 16) & 0x3F;
if (ratio)
fprintf(outf, "%d * %.1f = %.1f MHz max turbo 3 active cores\n",
ratio, bclk, ratio * bclk);
ratio = (msr >> 8) & 0x3F;
if (ratio)
fprintf(outf, "%d * %.1f = %.1f MHz max turbo 2 active cores\n",
ratio, bclk, ratio * bclk);
ratio = (msr >> 0) & 0x3F;
if (ratio)
fprintf(outf, "%d * %.1f = %.1f MHz max turbo 1 active core\n",
ratio, bclk, ratio * bclk);
}
static void
dump_knl_turbo_ratio_limits(void)
{
const unsigned int buckets_no = 7;
unsigned long long msr;
int delta_cores, delta_ratio;
int i, b_nr;
unsigned int cores[buckets_no];
unsigned int ratio[buckets_no];
get_msr(base_cpu, MSR_TURBO_RATIO_LIMIT, &msr);
fprintf(outf, "cpu%d: MSR_TURBO_RATIO_LIMIT: 0x%08llx\n",
base_cpu, msr);
/**
* Turbo encoding in KNL is as follows:
* [0] -- Reserved
* [7:1] -- Base value of number of active cores of bucket 1.
* [15:8] -- Base value of freq ratio of bucket 1.
* [20:16] -- +ve delta of number of active cores of bucket 2.
* i.e. active cores of bucket 2 =
* active cores of bucket 1 + delta
* [23:21] -- Negative delta of freq ratio of bucket 2.
* i.e. freq ratio of bucket 2 =
* freq ratio of bucket 1 - delta
* [28:24]-- +ve delta of number of active cores of bucket 3.
* [31:29]-- -ve delta of freq ratio of bucket 3.
* [36:32]-- +ve delta of number of active cores of bucket 4.
* [39:37]-- -ve delta of freq ratio of bucket 4.
* [44:40]-- +ve delta of number of active cores of bucket 5.
* [47:45]-- -ve delta of freq ratio of bucket 5.
* [52:48]-- +ve delta of number of active cores of bucket 6.
* [55:53]-- -ve delta of freq ratio of bucket 6.
* [60:56]-- +ve delta of number of active cores of bucket 7.
* [63:61]-- -ve delta of freq ratio of bucket 7.
*/
b_nr = 0;
cores[b_nr] = (msr & 0xFF) >> 1;
ratio[b_nr] = (msr >> 8) & 0xFF;
for (i = 16; i < 64; i += 8) {
delta_cores = (msr >> i) & 0x1F;
delta_ratio = (msr >> (i + 5)) & 0x7;
cores[b_nr + 1] = cores[b_nr] + delta_cores;
ratio[b_nr + 1] = ratio[b_nr] - delta_ratio;
b_nr++;
}
for (i = buckets_no - 1; i >= 0; i--)
if (i > 0 ? ratio[i] != ratio[i - 1] : 1)
fprintf(outf,
"%d * %.1f = %.1f MHz max turbo %d active cores\n",
ratio[i], bclk, ratio[i] * bclk, cores[i]);
}
static void
dump_nhm_cst_cfg(void)
{
unsigned long long msr;
get_msr(base_cpu, MSR_PKG_CST_CONFIG_CONTROL, &msr);
#define SNB_C1_AUTO_UNDEMOTE (1UL << 27)
#define SNB_C3_AUTO_UNDEMOTE (1UL << 28)
fprintf(outf, "cpu%d: MSR_PKG_CST_CONFIG_CONTROL: 0x%08llx", base_cpu, msr);
fprintf(outf, " (%s%s%s%s%slocked: pkg-cstate-limit=%d: %s)\n",
(msr & SNB_C3_AUTO_UNDEMOTE) ? "UNdemote-C3, " : "",
(msr & SNB_C1_AUTO_UNDEMOTE) ? "UNdemote-C1, " : "",
(msr & NHM_C3_AUTO_DEMOTE) ? "demote-C3, " : "",
(msr & NHM_C1_AUTO_DEMOTE) ? "demote-C1, " : "",
(msr & (1 << 15)) ? "" : "UN",
(unsigned int)msr & 0xF,
pkg_cstate_limit_strings[pkg_cstate_limit]);
return;
}
static void
dump_config_tdp(void)
{
unsigned long long msr;
get_msr(base_cpu, MSR_CONFIG_TDP_NOMINAL, &msr);
fprintf(outf, "cpu%d: MSR_CONFIG_TDP_NOMINAL: 0x%08llx", base_cpu, msr);
fprintf(outf, " (base_ratio=%d)\n", (unsigned int)msr & 0xFF);
get_msr(base_cpu, MSR_CONFIG_TDP_LEVEL_1, &msr);
fprintf(outf, "cpu%d: MSR_CONFIG_TDP_LEVEL_1: 0x%08llx (", base_cpu, msr);
if (msr) {
fprintf(outf, "PKG_MIN_PWR_LVL1=%d ", (unsigned int)(msr >> 48) & 0x7FFF);
fprintf(outf, "PKG_MAX_PWR_LVL1=%d ", (unsigned int)(msr >> 32) & 0x7FFF);
fprintf(outf, "LVL1_RATIO=%d ", (unsigned int)(msr >> 16) & 0xFF);
fprintf(outf, "PKG_TDP_LVL1=%d", (unsigned int)(msr) & 0x7FFF);
}
fprintf(outf, ")\n");
get_msr(base_cpu, MSR_CONFIG_TDP_LEVEL_2, &msr);
fprintf(outf, "cpu%d: MSR_CONFIG_TDP_LEVEL_2: 0x%08llx (", base_cpu, msr);
if (msr) {
fprintf(outf, "PKG_MIN_PWR_LVL2=%d ", (unsigned int)(msr >> 48) & 0x7FFF);
fprintf(outf, "PKG_MAX_PWR_LVL2=%d ", (unsigned int)(msr >> 32) & 0x7FFF);
fprintf(outf, "LVL2_RATIO=%d ", (unsigned int)(msr >> 16) & 0xFF);
fprintf(outf, "PKG_TDP_LVL2=%d", (unsigned int)(msr) & 0x7FFF);
}
fprintf(outf, ")\n");
get_msr(base_cpu, MSR_CONFIG_TDP_CONTROL, &msr);
fprintf(outf, "cpu%d: MSR_CONFIG_TDP_CONTROL: 0x%08llx (", base_cpu, msr);
if ((msr) & 0x3)
fprintf(outf, "TDP_LEVEL=%d ", (unsigned int)(msr) & 0x3);
fprintf(outf, " lock=%d", (unsigned int)(msr >> 31) & 1);
fprintf(outf, ")\n");
get_msr(base_cpu, MSR_TURBO_ACTIVATION_RATIO, &msr);
fprintf(outf, "cpu%d: MSR_TURBO_ACTIVATION_RATIO: 0x%08llx (", base_cpu, msr);
fprintf(outf, "MAX_NON_TURBO_RATIO=%d", (unsigned int)(msr) & 0xFF);
fprintf(outf, " lock=%d", (unsigned int)(msr >> 31) & 1);
fprintf(outf, ")\n");
}
unsigned int irtl_time_units[] = {1, 32, 1024, 32768, 1048576, 33554432, 0, 0 };
void print_irtl(void)
{
unsigned long long msr;
get_msr(base_cpu, MSR_PKGC3_IRTL, &msr);
fprintf(outf, "cpu%d: MSR_PKGC3_IRTL: 0x%08llx (", base_cpu, msr);
fprintf(outf, "%svalid, %lld ns)\n", msr & (1 << 15) ? "" : "NOT",
(msr & 0x3FF) * irtl_time_units[(msr >> 10) & 0x3]);
get_msr(base_cpu, MSR_PKGC6_IRTL, &msr);
fprintf(outf, "cpu%d: MSR_PKGC6_IRTL: 0x%08llx (", base_cpu, msr);
fprintf(outf, "%svalid, %lld ns)\n", msr & (1 << 15) ? "" : "NOT",
(msr & 0x3FF) * irtl_time_units[(msr >> 10) & 0x3]);
get_msr(base_cpu, MSR_PKGC7_IRTL, &msr);
fprintf(outf, "cpu%d: MSR_PKGC7_IRTL: 0x%08llx (", base_cpu, msr);
fprintf(outf, "%svalid, %lld ns)\n", msr & (1 << 15) ? "" : "NOT",
(msr & 0x3FF) * irtl_time_units[(msr >> 10) & 0x3]);
if (!do_irtl_hsw)
return;
get_msr(base_cpu, MSR_PKGC8_IRTL, &msr);
fprintf(outf, "cpu%d: MSR_PKGC8_IRTL: 0x%08llx (", base_cpu, msr);
fprintf(outf, "%svalid, %lld ns)\n", msr & (1 << 15) ? "" : "NOT",
(msr & 0x3FF) * irtl_time_units[(msr >> 10) & 0x3]);
get_msr(base_cpu, MSR_PKGC9_IRTL, &msr);
fprintf(outf, "cpu%d: MSR_PKGC9_IRTL: 0x%08llx (", base_cpu, msr);
fprintf(outf, "%svalid, %lld ns)\n", msr & (1 << 15) ? "" : "NOT",
(msr & 0x3FF) * irtl_time_units[(msr >> 10) & 0x3]);
get_msr(base_cpu, MSR_PKGC10_IRTL, &msr);
fprintf(outf, "cpu%d: MSR_PKGC10_IRTL: 0x%08llx (", base_cpu, msr);
fprintf(outf, "%svalid, %lld ns)\n", msr & (1 << 15) ? "" : "NOT",
(msr & 0x3FF) * irtl_time_units[(msr >> 10) & 0x3]);
}
void free_fd_percpu(void)
{
int i;
for (i = 0; i < topo.max_cpu_num + 1; ++i) {
if (fd_percpu[i] != 0)
close(fd_percpu[i]);
}
free(fd_percpu);
}
void free_all_buffers(void)
{
CPU_FREE(cpu_present_set);
cpu_present_set = NULL;
cpu_present_setsize = 0;
CPU_FREE(cpu_affinity_set);
cpu_affinity_set = NULL;
cpu_affinity_setsize = 0;
free(thread_even);
free(core_even);
free(package_even);
thread_even = NULL;
core_even = NULL;
package_even = NULL;
free(thread_odd);
free(core_odd);
free(package_odd);
thread_odd = NULL;
core_odd = NULL;
package_odd = NULL;
free(output_buffer);
output_buffer = NULL;
outp = NULL;
free_fd_percpu();
free(irq_column_2_cpu);
free(irqs_per_cpu);
}
/*
* Parse a file containing a single int.
*/
int parse_int_file(const char *fmt, ...)
{
va_list args;
char path[PATH_MAX];
FILE *filep;
int value;
va_start(args, fmt);
vsnprintf(path, sizeof(path), fmt, args);
va_end(args);
filep = fopen_or_die(path, "r");
if (fscanf(filep, "%d", &value) != 1)
err(1, "%s: failed to parse number from file", path);
fclose(filep);
return value;
}
/*
* get_cpu_position_in_core(cpu)
* return the position of the CPU among its HT siblings in the core
* return -1 if the sibling is not in list
*/
int get_cpu_position_in_core(int cpu)
{
char path[64];
FILE *filep;
int this_cpu;
char character;
int i;
sprintf(path,
"/sys/devices/system/cpu/cpu%d/topology/thread_siblings_list",
cpu);
filep = fopen(path, "r");
if (filep == NULL) {
perror(path);
exit(1);
}
for (i = 0; i < topo.num_threads_per_core; i++) {
fscanf(filep, "%d", &this_cpu);
if (this_cpu == cpu) {
fclose(filep);
return i;
}
/* Account for no separator after last thread*/
if (i != (topo.num_threads_per_core - 1))
fscanf(filep, "%c", &character);
}
fclose(filep);
return -1;
}
/*
* cpu_is_first_core_in_package(cpu)
* return 1 if given CPU is 1st core in package
*/
int cpu_is_first_core_in_package(int cpu)
{
return cpu == parse_int_file("/sys/devices/system/cpu/cpu%d/topology/core_siblings_list", cpu);
}
int get_physical_package_id(int cpu)
{
return parse_int_file("/sys/devices/system/cpu/cpu%d/topology/physical_package_id", cpu);
}
int get_core_id(int cpu)
{
return parse_int_file("/sys/devices/system/cpu/cpu%d/topology/core_id", cpu);
}
int get_num_ht_siblings(int cpu)
{
char path[80];
FILE *filep;
int sib1;
int matches = 0;
char character;
char str[100];
char *ch;
sprintf(path, "/sys/devices/system/cpu/cpu%d/topology/thread_siblings_list", cpu);
filep = fopen_or_die(path, "r");
/*
* file format:
* A ',' separated or '-' separated set of numbers
* (eg 1-2 or 1,3,4,5)
*/
fscanf(filep, "%d%c\n", &sib1, &character);
fseek(filep, 0, SEEK_SET);
fgets(str, 100, filep);
ch = strchr(str, character);
while (ch != NULL) {
matches++;
ch = strchr(ch+1, character);
}
fclose(filep);
return matches+1;
}
/*
* run func(thread, core, package) in topology order
* skip non-present cpus
*/
int for_all_cpus_2(int (func)(struct thread_data *, struct core_data *,
struct pkg_data *, struct thread_data *, struct core_data *,
struct pkg_data *), struct thread_data *thread_base,
struct core_data *core_base, struct pkg_data *pkg_base,
struct thread_data *thread_base2, struct core_data *core_base2,
struct pkg_data *pkg_base2)
{
int retval, pkg_no, core_no, thread_no;
for (pkg_no = 0; pkg_no < topo.num_packages; ++pkg_no) {
for (core_no = 0; core_no < topo.num_cores_per_pkg; ++core_no) {
for (thread_no = 0; thread_no <
topo.num_threads_per_core; ++thread_no) {
struct thread_data *t, *t2;
struct core_data *c, *c2;
struct pkg_data *p, *p2;
t = GET_THREAD(thread_base, thread_no, core_no, pkg_no);
if (cpu_is_not_present(t->cpu_id))
continue;
t2 = GET_THREAD(thread_base2, thread_no, core_no, pkg_no);
c = GET_CORE(core_base, core_no, pkg_no);
c2 = GET_CORE(core_base2, core_no, pkg_no);
p = GET_PKG(pkg_base, pkg_no);
p2 = GET_PKG(pkg_base2, pkg_no);
retval = func(t, c, p, t2, c2, p2);
if (retval)
return retval;
}
}
}
return 0;
}
/*
* run func(cpu) on every cpu in /proc/stat
* return max_cpu number
*/
int for_all_proc_cpus(int (func)(int))
{
FILE *fp;
int cpu_num;
int retval;
fp = fopen_or_die(proc_stat, "r");
retval = fscanf(fp, "cpu %*d %*d %*d %*d %*d %*d %*d %*d %*d %*d\n");
if (retval != 0)
err(1, "%s: failed to parse format", proc_stat);
while (1) {
retval = fscanf(fp, "cpu%u %*d %*d %*d %*d %*d %*d %*d %*d %*d %*d\n", &cpu_num);
if (retval != 1)
break;
retval = func(cpu_num);
if (retval) {
fclose(fp);
return(retval);
}
}
fclose(fp);
return 0;
}
void re_initialize(void)
{
free_all_buffers();
setup_all_buffers();
printf("turbostat: re-initialized with num_cpus %d\n", topo.num_cpus);
}
/*
* count_cpus()
* remember the last one seen, it will be the max
*/
int count_cpus(int cpu)
{
if (topo.max_cpu_num < cpu)
topo.max_cpu_num = cpu;
topo.num_cpus += 1;
return 0;
}
int mark_cpu_present(int cpu)
{
CPU_SET_S(cpu, cpu_present_setsize, cpu_present_set);
return 0;
}
/*
* snapshot_proc_interrupts()
*
* read and record summary of /proc/interrupts
*
* return 1 if config change requires a restart, else return 0
*/
int snapshot_proc_interrupts(void)
{
static FILE *fp;
int column, retval;
if (fp == NULL)
fp = fopen_or_die("/proc/interrupts", "r");
else
rewind(fp);
/* read 1st line of /proc/interrupts to get cpu* name for each column */
for (column = 0; column < topo.num_cpus; ++column) {
int cpu_number;
retval = fscanf(fp, " CPU%d", &cpu_number);
if (retval != 1)
break;
if (cpu_number > topo.max_cpu_num) {
warn("/proc/interrupts: cpu%d: > %d", cpu_number, topo.max_cpu_num);
return 1;
}
irq_column_2_cpu[column] = cpu_number;
irqs_per_cpu[cpu_number] = 0;
}
/* read /proc/interrupt count lines and sum up irqs per cpu */
while (1) {
int column;
char buf[64];
retval = fscanf(fp, " %s:", buf); /* flush irq# "N:" */
if (retval != 1)
break;
/* read the count per cpu */
for (column = 0; column < topo.num_cpus; ++column) {
int cpu_number, irq_count;
retval = fscanf(fp, " %d", &irq_count);
if (retval != 1)
break;
cpu_number = irq_column_2_cpu[column];
irqs_per_cpu[cpu_number] += irq_count;
}
while (getc(fp) != '\n')
; /* flush interrupt description */
}
return 0;
}
/*
* snapshot_gfx_rc6_ms()
*
* record snapshot of
* /sys/class/drm/card0/power/rc6_residency_ms
*
* return 1 if config change requires a restart, else return 0
*/
int snapshot_gfx_rc6_ms(void)
{
FILE *fp;
int retval;
fp = fopen_or_die("/sys/class/drm/card0/power/rc6_residency_ms", "r");
retval = fscanf(fp, "%lld", &gfx_cur_rc6_ms);
if (retval != 1)
err(1, "GFX rc6");
fclose(fp);
return 0;
}
/*
* snapshot_gfx_mhz()
*
* record snapshot of
* /sys/class/graphics/fb0/device/drm/card0/gt_cur_freq_mhz
*
* return 1 if config change requires a restart, else return 0
*/
int snapshot_gfx_mhz(void)
{
static FILE *fp;
int retval;
if (fp == NULL)
fp = fopen_or_die("/sys/class/graphics/fb0/device/drm/card0/gt_cur_freq_mhz", "r");
else {
rewind(fp);
fflush(fp);
}
retval = fscanf(fp, "%d", &gfx_cur_mhz);
if (retval != 1)
err(1, "GFX MHz");
return 0;
}
/*
* snapshot /proc and /sys files
*
* return 1 if configuration restart needed, else return 0
*/
int snapshot_proc_sysfs_files(void)
{
if (DO_BIC(BIC_IRQ))
if (snapshot_proc_interrupts())
return 1;
if (DO_BIC(BIC_GFX_rc6))
snapshot_gfx_rc6_ms();
if (DO_BIC(BIC_GFXMHz))
snapshot_gfx_mhz();
return 0;
}
void turbostat_loop()
{
int retval;
int restarted = 0;
restart:
restarted++;
snapshot_proc_sysfs_files();
retval = for_all_cpus(get_counters, EVEN_COUNTERS);
if (retval < -1) {
exit(retval);
} else if (retval == -1) {
if (restarted > 1) {
exit(retval);
}
re_initialize();
goto restart;
}
restarted = 0;
gettimeofday(&tv_even, (struct timezone *)NULL);
while (1) {
if (for_all_proc_cpus(cpu_is_not_present)) {
re_initialize();
goto restart;
}
nanosleep(&interval_ts, NULL);
if (snapshot_proc_sysfs_files())
goto restart;
retval = for_all_cpus(get_counters, ODD_COUNTERS);
if (retval < -1) {
exit(retval);
} else if (retval == -1) {
re_initialize();
goto restart;
}
gettimeofday(&tv_odd, (struct timezone *)NULL);
timersub(&tv_odd, &tv_even, &tv_delta);
if (for_all_cpus_2(delta_cpu, ODD_COUNTERS, EVEN_COUNTERS)) {
re_initialize();
goto restart;
}
compute_average(EVEN_COUNTERS);
format_all_counters(EVEN_COUNTERS);
flush_output_stdout();
nanosleep(&interval_ts, NULL);
if (snapshot_proc_sysfs_files())
goto restart;
retval = for_all_cpus(get_counters, EVEN_COUNTERS);
if (retval < -1) {
exit(retval);
} else if (retval == -1) {
re_initialize();
goto restart;
}
gettimeofday(&tv_even, (struct timezone *)NULL);
timersub(&tv_even, &tv_odd, &tv_delta);
if (for_all_cpus_2(delta_cpu, EVEN_COUNTERS, ODD_COUNTERS)) {
re_initialize();
goto restart;
}
compute_average(ODD_COUNTERS);
format_all_counters(ODD_COUNTERS);
flush_output_stdout();
}
}
void check_dev_msr()
{
struct stat sb;
char pathname[32];
sprintf(pathname, "/dev/cpu/%d/msr", base_cpu);
if (stat(pathname, &sb))
if (system("/sbin/modprobe msr > /dev/null 2>&1"))
err(-5, "no /dev/cpu/0/msr, Try \"# modprobe msr\" ");
}
void check_permissions()
{
struct __user_cap_header_struct cap_header_data;
cap_user_header_t cap_header = &cap_header_data;
struct __user_cap_data_struct cap_data_data;
cap_user_data_t cap_data = &cap_data_data;
extern int capget(cap_user_header_t hdrp, cap_user_data_t datap);
int do_exit = 0;
char pathname[32];
/* check for CAP_SYS_RAWIO */
cap_header->pid = getpid();
cap_header->version = _LINUX_CAPABILITY_VERSION;
if (capget(cap_header, cap_data) < 0)
err(-6, "capget(2) failed");
if ((cap_data->effective & (1 << CAP_SYS_RAWIO)) == 0) {
do_exit++;
warnx("capget(CAP_SYS_RAWIO) failed,"
" try \"# setcap cap_sys_rawio=ep %s\"", progname);
}
/* test file permissions */
sprintf(pathname, "/dev/cpu/%d/msr", base_cpu);