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benchmark mode : automated cooling (overheat protection)

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This commit is contained in:
Yann Collet 2016-03-11 13:41:20 +01:00
parent 8a1d1a6a6c
commit 27d3dad751
1 changed files with 27 additions and 5 deletions
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32
programs/bench.c
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@ -62,6 +62,17 @@
# include <sys/time.h> /* gettimeofday */
#endif
/* sleep : posix - windows - others */
#if !defined(_WIN32) && (defined(__unix__) || defined(__unix) || (defined(__APPLE__) && defined(__MACH__)))
# include <unistd.h>
# define BMK_sleep(s) sleep(s)
#elif defined(_WIN32)
# include <windows.h>
# define BMK_sleep(s) Sleep(1000*s)
#else
# define BMK_sleep(s) /* disabled */
#endif
#include "mem.h"
#include "zstd_static.h"
#include "xxhash.h"
@ -83,8 +94,10 @@
/* *************************************
* Constants
***************************************/
#define NBLOOPS 3
#define TIMELOOP 2500
#define NBLOOPS 3
#define TIMELOOP_MS 2500
#define ACTIVEPERIOD_S 70
#define COOLPERIOD_S 10
#define KB *(1 <<10)
#define MB *(1 <<20)
@ -274,6 +287,7 @@ static int BMK_benchMem(const void* srcBuffer, size_t srcSize,
double fastestC = 100000000., fastestD = 100000000.;
double ratio = 0.;
U64 crcCheck = 0;
int coolTime = BMK_GetMilliStart();
DISPLAY("\r%79s\r", "");
for (loopNb = 1; loopNb <= nbIterations; loopNb++) {
@ -281,6 +295,13 @@ static int BMK_benchMem(const void* srcBuffer, size_t srcSize,
int milliTime;
U32 blockNb;
/* overheat protection */
if (BMK_GetMilliSpan(coolTime) > ACTIVEPERIOD_S*1000) {
DISPLAY("\rcooling down ... \r");
BMK_sleep(COOLPERIOD_S);
coolTime = BMK_GetMilliStart();
}
/* Compression */
DISPLAY("%2i-%-17.17s :%10u ->\r", loopNb, displayName, (U32)srcSize);
memset(compressedBuffer, 0xE5, maxCompressedSize);
@ -289,7 +310,7 @@ static int BMK_benchMem(const void* srcBuffer, size_t srcSize,
milliTime = BMK_GetMilliStart();
while (BMK_GetMilliStart() == milliTime);
milliTime = BMK_GetMilliStart();
while (BMK_GetMilliSpan(milliTime) < TIMELOOP) {
while (BMK_GetMilliSpan(milliTime) < TIMELOOP_MS) {
ZSTD_compressBegin_advanced(refCtx, dictBuffer, dictBufferSize, ZSTD_getParams(cLevel, MAX(dictBufferSize, largestBlockSize)));
for (blockNb=0; blockNb<nbBlocks; blockNb++) {
size_t rSize = ZSTD_compress_usingPreparedCCtx(ctx, refCtx,
@ -318,7 +339,7 @@ static int BMK_benchMem(const void* srcBuffer, size_t srcSize,
while (BMK_GetMilliStart() == milliTime);
milliTime = BMK_GetMilliStart();
for ( ; BMK_GetMilliSpan(milliTime) < TIMELOOP; nbLoops++) {
for ( ; BMK_GetMilliSpan(milliTime) < TIMELOOP_MS; nbLoops++) {
ZSTD_decompressBegin_usingDict(refDCtx, dictBuffer, dictBufferSize);
for (blockNb=0; blockNb<nbBlocks; blockNb++) {
size_t regenSize = ZSTD_decompress_usingPreparedDCtx(dctx, refDCtx,
@ -405,11 +426,12 @@ static void BMK_benchCLevel(void* srcBuffer, size_t benchedSize,
{
if (cLevel < 0) {
int l;
for (l=1; l <= -cLevel; l++)
for (l=1; l <= -cLevel; l++) {
BMK_benchMem(srcBuffer, benchedSize,
displayName, l,
fileSizes, nbFiles,
dictBuffer, dictBufferSize);
}
return;
}
BMK_benchMem(srcBuffer, benchedSize,