| /* |
| * Copyright (c) 1999-2008 Mark D. Hill and David A. Wood |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer; |
| * redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution; |
| * neither the name of the copyright holders nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include "mem/ruby/profiler/CacheProfiler.hh" |
| #include "mem/ruby/profiler/Profiler.hh" |
| #include "mem/ruby/system/System.hh" |
| |
| using namespace std; |
| |
| CacheProfiler::CacheProfiler(const string& description) |
| : m_cacheRequestType(int(RubyRequestType_NUM)), m_genericRequestType(int(GenericRequestType_NUM)) |
| { |
| m_description = description; |
| |
| clearStats(); |
| } |
| |
| CacheProfiler::~CacheProfiler() |
| { |
| } |
| |
| void |
| CacheProfiler::printStats(ostream& out) const |
| { |
| out << "Cache Stats: " << m_description << endl; |
| string description = " " + m_description; |
| |
| out << description << "_total_misses: " << m_misses << endl; |
| out << description << "_total_demand_misses: " << m_demand_misses << endl; |
| out << description << "_total_prefetches: " << m_prefetches << endl; |
| out << description << "_total_sw_prefetches: " << m_sw_prefetches << endl; |
| out << description << "_total_hw_prefetches: " << m_hw_prefetches << endl; |
| out << endl; |
| |
| int requests = 0; |
| |
| for (int i = 0; i < int(RubyRequestType_NUM); i++) { |
| requests += m_cacheRequestType[i]; |
| } |
| |
| for (int i = 0; i < int(GenericRequestType_NUM); i++) { |
| requests += m_genericRequestType[i]; |
| } |
| |
| assert(m_misses == requests); |
| |
| if (requests > 0) { |
| for (int i = 0; i < int(RubyRequestType_NUM); i++) { |
| if (m_cacheRequestType[i] > 0) { |
| out << description << "_request_type_" |
| << RubyRequestType_to_string(RubyRequestType(i)) |
| << ": " |
| << 100.0 * (double)m_cacheRequestType[i] / |
| (double)requests |
| << "%" << endl; |
| } |
| } |
| |
| for (int i = 0; i < int(GenericRequestType_NUM); i++) { |
| if (m_genericRequestType[i] > 0) { |
| out << description << "_request_type_" |
| << GenericRequestType_to_string(GenericRequestType(i)) |
| << ": " |
| << 100.0 * (double)m_genericRequestType[i] / |
| (double)requests |
| << "%" << endl; |
| } |
| } |
| |
| out << endl; |
| |
| for (int i = 0; i < RubyAccessMode_NUM; i++){ |
| if (m_accessModeTypeHistogram[i] > 0) { |
| out << description << "_access_mode_type_" |
| << (RubyAccessMode) i << ": " |
| << m_accessModeTypeHistogram[i] << " " |
| << 100.0 * m_accessModeTypeHistogram[i] / requests |
| << "%" << endl; |
| } |
| } |
| } |
| |
| out << endl; |
| } |
| |
| void |
| CacheProfiler::clearStats() |
| { |
| for (int i = 0; i < int(RubyRequestType_NUM); i++) { |
| m_cacheRequestType[i] = 0; |
| } |
| for (int i = 0; i < int(GenericRequestType_NUM); i++) { |
| m_genericRequestType[i] = 0; |
| } |
| m_misses = 0; |
| m_demand_misses = 0; |
| m_prefetches = 0; |
| m_sw_prefetches = 0; |
| m_hw_prefetches = 0; |
| for (int i = 0; i < RubyAccessMode_NUM; i++) { |
| m_accessModeTypeHistogram[i] = 0; |
| } |
| } |
| |
| void |
| CacheProfiler::addCacheStatSample(RubyRequestType requestType, |
| RubyAccessMode accessType, |
| PrefetchBit pfBit) |
| { |
| m_cacheRequestType[requestType]++; |
| addStatSample(accessType, pfBit); |
| } |
| |
| void |
| CacheProfiler::addGenericStatSample(GenericRequestType requestType, |
| RubyAccessMode accessType, |
| PrefetchBit pfBit) |
| { |
| m_genericRequestType[requestType]++; |
| addStatSample(accessType, pfBit); |
| } |
| |
| void |
| CacheProfiler::addStatSample(RubyAccessMode accessType, |
| PrefetchBit pfBit) |
| { |
| m_misses++; |
| |
| m_accessModeTypeHistogram[accessType]++; |
| if (pfBit == PrefetchBit_No) { |
| m_demand_misses++; |
| } else if (pfBit == PrefetchBit_Yes) { |
| m_prefetches++; |
| m_sw_prefetches++; |
| } else { |
| // must be L1_HW || L2_HW prefetch |
| m_prefetches++; |
| m_hw_prefetches++; |
| } |
| } |