mosesdecoder/mert/Timer.cpp
Tetsuo Kiso bd79fc2c13 Use std::stringstream instead of using snprintf() for Windows.
This commit fixes compilation problems related to
snprintf() for Windows users.

Thanks to Raka Prasetya for reporting the errors.
Thanks also to Kenneth Heafield and Barry Haddow for suggestions.
2012-04-18 23:47:48 +09:00

105 lines
2.7 KiB
C++

#include "Timer.h"
#include "Util.h"
#if !defined(_WIN32) && !defined(_WIN64)
#include <sys/resource.h>
#include <sys/time.h>
#endif
namespace {
#if !defined(_WIN32) && !defined(_WIN64)
uint64_t GetMicroSeconds(const struct timeval& tv) {
return static_cast<uint64_t>(tv.tv_sec) * 1000000 + tv.tv_usec;
}
uint64_t GetTimeOfDayMicroSeconds() {
struct timeval tv;
gettimeofday(&tv, NULL);
return static_cast<uint64_t>(tv.tv_sec) * 1000000 + tv.tv_usec;
}
#endif
} // namespace
void Timer::GetCPUTimeMicroSeconds(Timer::CPUTime* cpu_time) const {
#if !defined(_WIN32) && !defined(_WIN64)
struct rusage usage;
if (getrusage(RUSAGE_SELF, &usage)) {
TRACE_ERR("Error occurred: getrusage().\n");
exit(1);
}
cpu_time->user_time = GetMicroSeconds(usage.ru_utime);
cpu_time->sys_time = GetMicroSeconds(usage.ru_stime);
#else // Windows
// Not implemented yet.
// TODO: implement the Windows version using native APIs.
#endif
}
double Timer::get_elapsed_cpu_time() const {
return static_cast<double>(get_elapsed_cpu_time_microseconds()) * 1e-6;
}
uint64_t Timer::get_elapsed_cpu_time_microseconds() const {
CPUTime e;
GetCPUTimeMicroSeconds(&e);
return (e.user_time - m_start_time.user_time) +
(e.sys_time - m_start_time.sys_time);
}
double Timer::get_elapsed_wall_time() const {
return static_cast<double>(get_elapsed_wall_time_microseconds()) * 1e-6;
}
uint64_t Timer::get_elapsed_wall_time_microseconds() const {
return GetTimeOfDayMicroSeconds() - m_wall;
}
void Timer::start(const char* msg)
{
// Print an optional message, something like "Starting timer t";
if (msg) TRACE_ERR( msg << std::endl);
if (m_is_running) return;
m_is_running = true;
m_wall = GetTimeOfDayMicroSeconds();
GetCPUTimeMicroSeconds(&m_start_time);
}
void Timer::restart(const char* msg)
{
if (msg) {
TRACE_ERR(msg << std::endl);
}
m_wall = GetTimeOfDayMicroSeconds();
GetCPUTimeMicroSeconds(&m_start_time);
}
void Timer::check(const char* msg)
{
// Print an optional message, something like "Checking timer t";
if (msg) TRACE_ERR( msg << " : ");
if (m_is_running) {
TRACE_ERR("[Wall " << get_elapsed_wall_time()
<< " CPU " << get_elapsed_cpu_time() << "] seconds.\n");
} else {
TRACE_ERR("WARNING: the timer is not running.\n");
}
}
std::string Timer::ToString() const {
std::string res;
const double wall = get_elapsed_wall_time();
CPUTime e;
GetCPUTimeMicroSeconds(&e);
const double utime = (e.user_time - m_start_time.user_time) * 1e-6;
const double stime = (e.sys_time - m_start_time.sys_time) * 1e-6;
std::stringstream ss;
ss << "wall " << wall << " sec. user " << utime << " sec. sys " << stime
<< " sec. total " << utime + stime << " sec.";
res.append(ss.str());
return res;
}