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mirror of https://github.com/facebook/zstd.git synced 2025-08-01 09:47:01 +03:00

new statistics update policy

small general compression ratio improvement for btopt+ strategies/
This commit is contained in:
Yann Collet
2021-09-04 00:52:44 -07:00
parent 23a9368c45
commit 08ceda3dfc
2 changed files with 41 additions and 29 deletions

View File

@ -70,6 +70,8 @@ static const size_t maxMemory = (sizeof(size_t)==4) ?
#define DISPLAY(...) { fprintf(stderr, __VA_ARGS__); fflush(NULL); }
#define DISPLAYLEVEL(l, ...) if (displayLevel>=l) { DISPLAY(__VA_ARGS__); }
/* 0 : no display; 1: errors; 2 : + result + interaction + warnings; 3 : + progression; 4 : + information */
#define OUTPUT(...) { fprintf(stdout, __VA_ARGS__); fflush(NULL); }
#define OUTPUTLEVEL(l, ...) if (displayLevel>=l) { OUTPUT(__VA_ARGS__); }
/* *************************************
@ -429,9 +431,9 @@ BMK_benchMemAdvancedNoAlloc(
dctxprep.dictBuffer = dictBuffer;
dctxprep.dictBufferSize = dictBufferSize;
DISPLAYLEVEL(2, "\r%70s\r", ""); /* blank line */
OUTPUTLEVEL(2, "\r%70s\r", ""); /* blank line */
assert(srcSize < UINT_MAX);
DISPLAYLEVEL(2, "%2s-%-17.17s :%10u -> \r", marks[markNb], displayName, (unsigned)srcSize);
OUTPUTLEVEL(2, "%2s-%-17.17s :%10u -> \r", marks[markNb], displayName, (unsigned)srcSize);
while (!(compressionCompleted && decompressionCompleted)) {
if (!compressionCompleted) {
@ -453,7 +455,7 @@ BMK_benchMemAdvancedNoAlloc(
{ int const ratioAccuracy = (ratio < 10.) ? 3 : 2;
assert(cSize < UINT_MAX);
DISPLAYLEVEL(2, "%2s-%-17.17s :%10u ->%10u (%5.*f), %6.*f MB/s\r",
OUTPUTLEVEL(2, "%2s-%-17.17s :%10u ->%10u (%5.*f), %6.*f MB/s\r",
marks[markNb], displayName,
(unsigned)srcSize, (unsigned)cSize,
ratioAccuracy, ratio,
@ -476,7 +478,7 @@ BMK_benchMemAdvancedNoAlloc(
}
{ int const ratioAccuracy = (ratio < 10.) ? 3 : 2;
DISPLAYLEVEL(2, "%2s-%-17.17s :%10u ->%10u (%5.*f), %6.*f MB/s, %6.1f MB/s \r",
OUTPUTLEVEL(2, "%2s-%-17.17s :%10u ->%10u (%5.*f), %6.*f MB/s, %6.1f MB/s \r",
marks[markNb], displayName,
(unsigned)srcSize, (unsigned)cSize,
ratioAccuracy, ratio,
@ -537,13 +539,13 @@ BMK_benchMemAdvancedNoAlloc(
double const cSpeed = (double)benchResult.cSpeed / MB_UNIT;
double const dSpeed = (double)benchResult.dSpeed / MB_UNIT;
if (adv->additionalParam) {
DISPLAY("-%-3i%11i (%5.3f) %6.2f MB/s %6.1f MB/s %s (param=%d)\n", cLevel, (int)cSize, ratio, cSpeed, dSpeed, displayName, adv->additionalParam);
OUTPUT("-%-3i%11i (%5.3f) %6.2f MB/s %6.1f MB/s %s (param=%d)\n", cLevel, (int)cSize, ratio, cSpeed, dSpeed, displayName, adv->additionalParam);
} else {
DISPLAY("-%-3i%11i (%5.3f) %6.2f MB/s %6.1f MB/s %s\n", cLevel, (int)cSize, ratio, cSpeed, dSpeed, displayName);
OUTPUT("-%-3i%11i (%5.3f) %6.2f MB/s %6.1f MB/s %s\n", cLevel, (int)cSize, ratio, cSpeed, dSpeed, displayName);
}
}
DISPLAYLEVEL(2, "%2i#\n", cLevel);
OUTPUTLEVEL(2, "%2i#\n", cLevel);
} /* Bench */
benchResult.cMem = (1ULL << (comprParams->windowLog)) + ZSTD_sizeof_CCtx(cctx);
@ -672,7 +674,7 @@ static BMK_benchOutcome_t BMK_benchCLevel(const void* srcBuffer, size_t benchedS
}
if (displayLevel == 1 && !adv->additionalParam) /* --quiet mode */
DISPLAY("bench %s %s: input %u bytes, %u seconds, %u KB blocks\n",
OUTPUT("bench %s %s: input %u bytes, %u seconds, %u KB blocks\n",
ZSTD_VERSION_STRING, ZSTD_GIT_COMMIT_STRING,
(unsigned)benchedSize, adv->nbSeconds, (unsigned)(adv->blockSize>>10));
@ -762,7 +764,7 @@ static int BMK_loadFiles(void* buffer, size_t bufferSize,
}
{ FILE* const f = fopen(fileNamesTable[n], "rb");
if (f==NULL) RETURN_ERROR_INT(10, "impossible to open file %s", fileNamesTable[n]);
DISPLAYLEVEL(2, "Loading %s... \r", fileNamesTable[n]);
OUTPUTLEVEL(2, "Loading %s... \r", fileNamesTable[n]);
if (fileSize > bufferSize-pos) fileSize = bufferSize-pos, nbFiles=n; /* buffer too small - stop after this file */
{ size_t const readSize = fread(((char*)buffer)+pos, 1, (size_t)fileSize, f);
if (readSize != (size_t)fileSize) RETURN_ERROR_INT(11, "could not read %s", fileNamesTable[n]);