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Perf tests: added option to set affinity mask on Android platform

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This commit is contained in:
Andrey Kamaev 2011-09-16 11:27:19 +00:00
parent 6d56105b42
commit aebd7ebb75
1 changed files with 26 additions and 0 deletions
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26
modules/ts/src/ts_perf.cpp
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@ -387,6 +387,7 @@ const char *command_line_keys =
"{!!bugbugbugbug!! |perf_seed |809564 |seed for random numbers generator}"
#if ANDROID
"{!!bugbugbugbug!! |perf_time_limit |6.0 |default time limit for a single test (in seconds)}"
"{!!bugbugbugbug!! |perf_affinity_mask |0 |set affinity mask for the main thread}"
#else
"{!!bugbugbugbug!! |perf_time_limit |3.0 |default time limit for a single test (in seconds)}"
#endif
@ -399,6 +400,24 @@ double param_max_deviation;
unsigned int param_min_samples;
uint64 param_seed;
double param_time_limit;
#if ANDROID
int param_affinity_mask;
#include <sys/syscall.h>
#include <pthread.h>
static void setCurrentThreadAffinityMask(int mask)
{
pid_t pid=gettid();
int syscallres=syscall(__NR_sched_setaffinity, pid, sizeof(mask), &mask);
if (syscallres)
{
int err=errno;
err=err;//to avoid warnings about unused variables
LOGE("Error in the syscall setaffinity: mask=%d=0x%x err=%d=0x%x", mask, mask, err, err);
}
}
#endif
void TestBase::Init(int argc, const char* const argv[])
{
@ -408,6 +427,9 @@ void TestBase::Init(int argc, const char* const argv[])
param_max_deviation = std::max(0., args.get<double>("perf_max_deviation"));
param_seed = args.get<uint64>("perf_seed");
param_time_limit = std::max(0., args.get<double>("perf_time_limit"));
#if ANDROID
param_affinity_mask = args.get<int>("perf_affinity_mask");
#endif
if (args.get<bool>("help"))
{
@ -747,6 +769,10 @@ void TestBase::reportMetrics(bool toJUnitXML)
void TestBase::SetUp()
{
#if ANDROID
if (param_affinity_mask)
setCurrentThreadAffinityMask(param_affinity_mask);
#endif
lastTime = 0;
totalTime = 0;
nIters = (unsigned int)-1;