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Windows implementation of getmillisecs(). (#1369)

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Summary: Pull Request resolved: https://github.com/facebookresearch/faiss/pull/1369

Test Plan: Imported from OSS

Reviewed By: mdouze

Differential Revision: D23314738

Pulled By: beauby

fbshipit-source-id: 72590eea929edcd8bd133c65265778b6cf6574a9
This commit is contained in:
Lucas Hosseini 2020-08-25 16:56:01 -07:00 committed by Facebook GitHub Bot
parent e3044c407e
commit 2ccecbcd7e
1 changed files with 19 additions and 1 deletions
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20
faiss/utils/utils.cpp
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@ -14,9 +14,16 @@
#include <cstring>
#include <cmath>
#include <sys/time.h>
#include <sys/types.h>
#ifdef _MSC_VER
#define NOMINMAX
#include <windows.h>
#undef NOMINMAX
#else
#include <sys/time.h>
#include <unistd.h>
#endif // !_MSC_VER
#include <omp.h>
@ -65,11 +72,22 @@ int sgemv_(const char *trans, FINTEGER *m, FINTEGER *n, float *alpha,
namespace faiss {
#ifdef _MSC_VER
double getmillisecs() {
LARGE_INTEGER ts;
LARGE_INTEGER freq;
QueryPerformanceFrequency(&freq);
QueryPerformanceCounter(&ts);
return (ts.QuadPart * 1e3) / freq.QuadPart;
}
#else // _MSC_VER
double getmillisecs () {
struct timeval tv;
gettimeofday (&tv, nullptr);
return tv.tv_sec * 1e3 + tv.tv_usec * 1e-3;
}
#endif // _MSC_VER
uint64_t get_cycles () {
#ifdef __x86_64__