| For a higher level overview, try: perf report --sort comm,dso | |
| Sample related events with: perf record -e '{cycles,instructions}:S' | |
| Compare performance results with: perf diff [<old file> <new file>] | |
| Boolean options have negative forms, e.g.: perf report --no-children | |
| Customize output of perf script with: perf script -F event,ip,sym | |
| Generate a script for your data: perf script -g <lang> | |
| Save output of perf stat using: perf stat record <target workload> | |
| Create an archive with symtabs to analyse on other machine: perf archive | |
| Search options using a keyword: perf report -h <keyword> | |
| Use parent filter to see specific call path: perf report -p <regex> | |
| List events using substring match: perf list <keyword> | |
| To see list of saved events and attributes: perf evlist -v | |
| Use --symfs <dir> if your symbol files are in non-standard locations | |
| To see callchains in a more compact form: perf report -g folded | |
| Show individual samples with: perf script | |
| Limit to show entries above 5% only: perf report --percent-limit 5 | |
| Profiling branch (mis)predictions with: perf record -b / perf report | |
| Treat branches as callchains: perf report --branch-history | |
| To count events in every 1000 msec: perf stat -I 1000 | |
| Print event counts in CSV format with: perf stat -x, | |
| If you have debuginfo enabled, try: perf report -s sym,srcline | |
| For memory address profiling, try: perf mem record / perf mem report | |
| For tracepoint events, try: perf report -s trace_fields | |
| To record callchains for each sample: perf record -g | |
| To record every process run by a user: perf record -u <user> | |
| Skip collecting build-id when recording: perf record -B | |
| To change sampling frequency to 100 Hz: perf record -F 100 | |
| See assembly instructions with percentage: perf annotate <symbol> | |
| If you prefer Intel style assembly, try: perf annotate -M intel | |
| For hierarchical output, try: perf report --hierarchy | |
| Order by the overhead of source file name and line number: perf report -s srcline | |
| System-wide collection from all CPUs: perf record -a | |
| Show current config key-value pairs: perf config --list | |
| Show user configuration overrides: perf config --user --list |