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modified util::time API

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for easier invocation.
- no longer expose frequency timer :
it's either useless, or stored internally in a static variable (init is only necessary once).
- UTIL_getTime() provides result by function return.
This commit is contained in:
Yann Collet
2017-09-12 18:12:46 -07:00
parent 5bbb465d3e
commit c95c0c9725
4 changed files with 93 additions and 77 deletions
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tests/fullbench.c
+4 -6
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@@ -422,8 +422,6 @@ static size_t benchMem(const void* src, size_t srcSize, U32 benchNb)
{ U32 loopNb;
# define TIME_SEC_MICROSEC (1*1000000ULL) /* 1 second */
U64 const clockLoop = TIMELOOP_S * TIME_SEC_MICROSEC;
UTIL_freq_t ticksPerSecond;
UTIL_initTimer(&ticksPerSecond);
DISPLAY("%2i- %-30.30s : \r", benchNb, benchName);
for (loopNb = 1; loopNb <= g_nbIterations; loopNb++) {
UTIL_time_t clockStart;
@@ -431,13 +429,13 @@ static size_t benchMem(const void* src, size_t srcSize, U32 benchNb)
U32 nbRounds;
UTIL_sleepMilli(1); /* give processor time to other processes */
UTIL_waitForNextTick(ticksPerSecond);
UTIL_getTime(&clockStart);
for (nbRounds=0; UTIL_clockSpanMicro(clockStart, ticksPerSecond) < clockLoop; nbRounds++) {
UTIL_waitForNextTick();
clockStart = UTIL_getTime();
for (nbRounds=0; UTIL_clockSpanMicro(clockStart) < clockLoop; nbRounds++) {
benchResult = benchFunction(dstBuff, dstBuffSize, buff2, src, srcSize);
if (ZSTD_isError(benchResult)) { DISPLAY("ERROR ! %s() => %s !! \n", benchName, ZSTD_getErrorName(benchResult)); exit(1); }
}
{ U64 const clockSpanMicro = UTIL_clockSpanMicro(clockStart, ticksPerSecond);
{ U64 const clockSpanMicro = UTIL_clockSpanMicro(clockStart);
double const averageTime = (double)clockSpanMicro / TIME_SEC_MICROSEC / nbRounds;
if (averageTime < bestTime) bestTime = averageTime;
DISPLAY("%2i- %-30.30s : %7.1f MB/s (%9u)\r", loopNb, benchName, (double)srcSize / (1 MB) / bestTime, (U32)benchResult);