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support for QueryPerformanceCounter and clock_gettime

dev
inikep 2016-03-29 14:52:13 +02:00
parent 06f793a3ab
commit 4c12f232ec
1 changed files with 81 additions and 26 deletions
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107
programs/bench.c
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@ -57,7 +57,7 @@
# include <unistd.h>
# include <sys/resource.h> /* setpriority */
# define BMK_sleep(s) sleep(s)
# define mili_sleep(mili) { struct timespec t; t.tv_sec=0; t.tv_nsec=mili*1000000L; nanosleep(&t, NULL); }
# define mili_sleep(mili) { struct timespec t; t.tv_sec=0; t.tv_nsec=mili*1000000ULL; nanosleep(&t, NULL); }
# define setHighPriority() setpriority(PRIO_PROCESS, 0, -20)
#elif defined(_WIN32)
# include <windows.h>
@ -70,6 +70,49 @@
# define setHighPriority() /* disabled */
#endif
/*
Windows QueryPerformanceCounter resolution = 410 nanosec
Windows clock() resolution = 1000000 nanosec
VirtualBox Ubuntu clock() resolution = 1000 nanosec
VirtualBox Ubuntu clock_gettime() resolution = 100-280 nanosec
fizzle clock() resolution = 1000 nanosec
fizzle clock_gettime() resolution = 100-280 nanosec
*/
#if !defined(_WIN32) && (defined(__unix__) || defined(__unix) || (defined(__APPLE__) && defined(__MACH__)))
#if 0
typedef clock_t BMK_time_t;
# define BMK_TIME_FUNCTION "clock()"
# define BMK_initTimer(ticksPerSecond) (void)ticksPerSecond
# define BMK_getTime(x) x = clock()
# define BMK_getSpanTimeMicro(ticksPerSecond, clockStart, clockEnd) (1000000ULL * (clockEnd - clockStart) / CLOCKS_PER_SEC)
# define BMK_getSpanTimeNano(ticksPerSecond, clockStart, clockEnd) (1000000000ULL * (clockEnd - clockStart) / CLOCKS_PER_SEC)
#else
typedef struct timespec BMK_time_t;
# define BMK_TIME_FUNCTION "clock_gettime"
# define BMK_initTimer(ticksPerSecond) (void)ticksPerSecond
# define BMK_getTime(x) if (clock_gettime(CLOCK_MONOTONIC, &x) == -1 ){ fprintf(stderr, "ERROR: clock_gettime error\n"); }
# define BMK_getSpanTimeMicro(ticksPerSecond, clockStart, clockEnd) (1000000ULL*( clockEnd.tv_sec - clockStart.tv_sec ) + ( clockEnd.tv_nsec - clockStart.tv_nsec ) / 1000)
# define BMK_getSpanTimeNano(ticksPerSecond, clockStart, clockEnd) (1000000000ULL*( clockEnd.tv_sec - clockStart.tv_sec ) + ( clockEnd.tv_nsec - clockStart.tv_nsec ))
#endif
#elif defined(_WIN32)
typedef LARGE_INTEGER BMK_time_t;
# define BMK_TIME_FUNCTION "QueryPerformanceFrequency"
# define BMK_initTimer(x) if (!QueryPerformanceFrequency(&x)) { fprintf(stderr, "ERROR: QueryPerformance not present\n"); }
# define BMK_getTime(x) QueryPerformanceCounter(&x)
# define BMK_getSpanTimeMicro(ticksPerSecond, clockStart, clockEnd) (1000000ULL*(clockEnd.QuadPart - clockStart.QuadPart)/ticksPerSecond.QuadPart)
# define BMK_getSpanTimeNano(ticksPerSecond, clockStart, clockEnd) (1000000000ULL*(clockEnd.QuadPart - clockStart.QuadPart)/ticksPerSecond.QuadPart)
#else
typedef int BMK_time_t;
# define BMK_TIME_FUNCTION "None"
# define BMK_initTimer(ticksPerSecond) (void)ticksPerSecond
# define BMK_getTimeMicro(clockStart) clockStart=1
# define BMK_getSpanTimeMicro(ticksPerSecond, clockStart, clockEnd) (TIMELOOP_S*1000000ULL+clockEnd-clockStart)
# define BMK_getSpanTimeNano(ticksPerSecond, clockStart, clockEnd) (TIMELOOP_S*1000000000ULL+clockEnd-clockStart)
#endif
#include "mem.h"
#include "zstd_static.h"
#include "zstd_internal.h" /* ZSTD_compressBegin_targetSrcSize */
@ -162,20 +205,16 @@ void BMK_SetBlockSize(size_t blockSize)
/* ********************************************************
* Private functions
**********************************************************/
typedef clock_t BMK_time_t;
static BMK_time_t BMK_getTime()
/* returns time span in microseconds */
static U64 BMK_clockSpan( BMK_time_t clockStart, BMK_time_t ticksPerSecond )
{
return clock();
BMK_time_t clockEnd;
(void)ticksPerSecond;
BMK_getTime(clockEnd);
return BMK_getSpanTimeMicro(ticksPerSecond, clockStart, clockEnd);
}
/* returns time span in nanoseconds */
static U64 BMK_clockSpan( BMK_time_t clockStart )
{
return 1000000ULL * (BMK_getTime() - clockStart) / CLOCKS_PER_SEC;
}
static U64 BMK_getFileSize(const char* infilename)
{
int r;
@ -235,6 +274,7 @@ static int BMK_benchMem(const void* srcBuffer, size_t srcSize,
U64 const crcOrig = XXH64(srcBuffer, srcSize, 0);
U32 nbBlocks;
BMK_time_t ticksPerSecond;
/* checks */
if (!compressedBuffer || !resultBuffer || !blockTable || !refCtx || !ctx || !refDCtx || !dctx)
@ -242,6 +282,18 @@ static int BMK_benchMem(const void* srcBuffer, size_t srcSize,
/* init */
if (strlen(displayName)>17) displayName += strlen(displayName)-17; /* can only display 17 characters */
BMK_initTimer(ticksPerSecond);
{
BMK_time_t clockStart, clockEnd;
BMK_getTime(clockStart);
do { BMK_getTime(clockEnd); }
while (BMK_getSpanTimeNano(ticksPerSecond, clockStart, clockEnd) == 0);
printf(BMK_TIME_FUNCTION " resolution = %d nanosec\n", (int)BMK_getSpanTimeNano(ticksPerSecond, clockStart, clockEnd));
}
/* Init blockTable data */
{ const char* srcPtr = (const char*)srcBuffer;
@ -273,21 +325,22 @@ static int BMK_benchMem(const void* srcBuffer, size_t srcSize,
double fastestC = 100000000., fastestD = 100000000.;
double ratio = 0.;
U64 crcCheck = 0;
BMK_time_t coolTime = BMK_getTime();
BMK_time_t coolTime;
U32 testNb;
BMK_getTime(coolTime);
DISPLAYLEVEL(2, "\r%79s\r", "");
for (testNb = 1; testNb <= (g_nbIterations + !g_nbIterations); testNb++) {
int nbLoops;
BMK_time_t clockStart;
BMK_time_t clockStart, clockEnd;
U64 clockSpan;
U64 const clockLoop = g_nbIterations ? TIMELOOP_S*1000000ULL : 10;
/* overheat protection */
if (BMK_clockSpan(coolTime) > ACTIVEPERIOD_S*1000000ULL) {
if (BMK_clockSpan(coolTime, ticksPerSecond) > ACTIVEPERIOD_S*1000000ULL) {
DISPLAY("\rcooling down ... \r");
BMK_sleep(COOLPERIOD_S);
coolTime = BMK_getTime();
BMK_getTime(coolTime);
}
/* Compression */
@ -295,11 +348,12 @@ static int BMK_benchMem(const void* srcBuffer, size_t srcSize,
memset(compressedBuffer, 0xE5, maxCompressedSize); /* warm up and erase result buffer */
mili_sleep(1); /* give processor time to other processes */
clockStart = BMK_getTime();
while (BMK_getTime() == clockStart);
clockStart = BMK_getTime();
BMK_getTime(clockStart);
do { BMK_getTime(clockEnd); }
while (BMK_getSpanTimeNano(ticksPerSecond, clockStart, clockEnd) == 0);
BMK_getTime(clockStart);
for (nbLoops = 0 ; BMK_clockSpan(clockStart) < clockLoop ; nbLoops++) {
for (nbLoops = 0 ; BMK_clockSpan(clockStart, ticksPerSecond) < clockLoop ; nbLoops++) {
U32 blockNb;
ZSTD_compressBegin_targetSrcSize(refCtx, dictBuffer, dictBufferSize, blockSize, cLevel);
for (blockNb=0; blockNb<nbBlocks; blockNb++) {
@ -309,7 +363,7 @@ static int BMK_benchMem(const void* srcBuffer, size_t srcSize,
if (ZSTD_isError(rSize)) EXM_THROW(1, "ZSTD_compress_usingPreparedCCtx() failed : %s", ZSTD_getErrorName(rSize));
blockTable[blockNb].cSize = rSize;
} }
clockSpan = BMK_clockSpan(clockStart);
clockSpan = BMK_clockSpan(clockStart, ticksPerSecond);
if ((double)clockSpan < fastestC*nbLoops) fastestC = (double)clockSpan / nbLoops;
cSize = 0;
@ -324,11 +378,12 @@ static int BMK_benchMem(const void* srcBuffer, size_t srcSize,
memset(resultBuffer, 0xD6, srcSize); /* warm result buffer */
mili_sleep(1); /* give processor time to other processes */
clockStart = BMK_getTime();
while (BMK_getTime() == clockStart);
clockStart = BMK_getTime();
BMK_getTime(clockStart);
do { BMK_getTime(clockEnd); }
while (BMK_getSpanTimeNano(ticksPerSecond, clockStart, clockEnd) == 0);
BMK_getTime(clockStart);
for (nbLoops = 0 ; BMK_clockSpan(clockStart) < clockLoop ; nbLoops++) {
for (nbLoops = 0 ; BMK_clockSpan(clockStart, ticksPerSecond) < clockLoop ; nbLoops++) {
U32 blockNb;
ZSTD_decompressBegin_usingDict(refDCtx, dictBuffer, dictBufferSize);
for (blockNb=0; blockNb<nbBlocks; blockNb++) {
@ -343,7 +398,7 @@ static int BMK_benchMem(const void* srcBuffer, size_t srcSize,
blockTable[blockNb].resSize = regenSize;
} }
clockSpan = BMK_clockSpan(clockStart);
clockSpan = BMK_clockSpan(clockStart, ticksPerSecond);
if ((double)clockSpan < fastestD*nbLoops) fastestD = (double)clockSpan / nbLoops;
DISPLAYLEVEL(2, "%2i-%-17.17s :%10u ->%10u (%5.3f),%6.1f MB/s ,%6.1f MB/s\r",
testNb, displayName, (U32)srcSize, (U32)cSize, ratio,