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/*
* Copyright (c) 2017-2018 ARM Limited.
*
* SPDX-License-Identifier: MIT
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#pragma once
#ifdef CYCLE_PROFILING
#include "../perf.h"
#ifndef NO_MULTI_THREADING
#include <mutex>
#endif
namespace arm_gemm {
#ifndef NO_MULTI_THREADING
extern std::mutex report_mutex;
#endif
class profiler {
private:
static const int maxevents = 100000;
unsigned long times[maxevents] = { };
unsigned long units[maxevents] = { };
int events[maxevents] = { };
int currentevent=0;
int countfd=0;
class ScopedProfilerClass {
private:
profiler &_parent;
bool legal=false;
public:
ScopedProfilerClass(profiler &prof, int i, unsigned long u) : _parent(prof) {
if (prof.currentevent==maxevents)
return;
prof.events[prof.currentevent]=i;
prof.units[prof.currentevent]=u;
legal=true;
start_counter(prof.countfd);
}
~ScopedProfilerClass() {
if (!legal) return;
long long cycs = stop_counter(_parent.countfd);
_parent.times[_parent.currentevent++] = cycs;
}
};
public:
profiler() {
countfd=open_cycle_counter();
}
~profiler() {
close(countfd);
int tots[5];
unsigned long counts[5];
unsigned long tunits[5];
const char * descs[] = { "Prepare A", "Prepare B", "Kernel", "Merge" };
for (int i=1; i<5; i++) {
tots[i] = 0;
counts[i] = 0;
tunits[i] = 0;
}
for (int i=0; i<currentevent; i++) {
// printf("%10s: %ld\n", descs[events[i]-1], times[i]);
tots[events[i]]++;
counts[events[i]] += times[i];
tunits[events[i]] += units[i];
}
#ifdef NO_MULTI_THREADING
printf("Profiled events:\n");
#else
std::lock_guard<std::mutex> lock(report_mutex);
printf("Profiled events (cpu %d):\n", sched_getcpu());
#endif
printf("%20s %9s %9s %9s %12s %9s\n", "", "Events", "Total", "Average", "Bytes/MACs", "Per cycle");
for (int i=1; i<5; i++) {
printf("%20s: %9d %9ld %9ld %12lu %9.2f\n",descs[i-1],tots[i],counts[i],counts[i]/tots[i],tunits[i],(float)tunits[i]/counts[i]);
}
}
template <typename T>
void operator() (int i, unsigned long u, T func) {
if (currentevent==maxevents) {
func();
} else {
events[currentevent] = i;
units[currentevent] = u;
start_counter(countfd);
func();
long long cycs = stop_counter(countfd);
times[currentevent++] = cycs;
}
}
ScopedProfilerClass ScopedProfiler(int i, unsigned long u) {
return ScopedProfilerClass(*this, i, u);
}
};
#endif // CYCLE_PROFILING
} // namespace arm_gemm
#define PROFILE_PREPA 1
#define PROFILE_PREPB 2
#define PROFILE_KERNEL 3
#define PROFILE_MERGE 4
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