reduced zstreamtest --mt memory load
adjust compression level, hence memory usage, depending on nb threads in order to run correctly on memory-starved VM.
This commit is contained in:
Yann Collet
parent
02502191e5
commit
bc32b40b98
20
Makefile
20
Makefile
@ -296,7 +296,7 @@ endif
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#------------------------------------------------------------------------
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#make tests validated only for MSYS, Linux, OSX, kFreeBSD and Hurd targets
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# target specific tests
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#------------------------------------------------------------------------
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ifneq (,$(filter $(HOST_OS),MSYS POSIX))
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cmakebuild:
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@ -306,38 +306,38 @@ cmakebuild:
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cd $(BUILDIR)/cmake/build ; cmake -DCMAKE_INSTALL_PREFIX:PATH=~/install_test_dir $(CMAKE_PARAMS) .. ; $(MAKE) install ; $(MAKE) uninstall
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c90build: clean
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gcc -v
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$(CC) -v
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CFLAGS="-std=c90" $(MAKE) allmost # will fail, due to missing support for `long long`
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gnu90build: clean
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gcc -v
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$(CC) -v
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CFLAGS="-std=gnu90" $(MAKE) allmost
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c99build: clean
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gcc -v
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$(CC) -v
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CFLAGS="-std=c99" $(MAKE) allmost
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gnu99build: clean
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gcc -v
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$(CC) -v
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CFLAGS="-std=gnu99" $(MAKE) allmost
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c11build: clean
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gcc -v
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$(CC) -v
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CFLAGS="-std=c11" $(MAKE) allmost
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bmix64build: clean
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gcc -v
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$(CC) -v
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CFLAGS="-O3 -mbmi -Werror" $(MAKE) -C $(TESTDIR) test
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bmix32build: clean
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gcc -v
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$(CC) -v
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CFLAGS="-O3 -mbmi -mx32 -Werror" $(MAKE) -C $(TESTDIR) test
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bmi32build: clean
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gcc -v
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$(CC) -v
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CFLAGS="-O3 -mbmi -m32 -Werror" $(MAKE) -C $(TESTDIR) test
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staticAnalyze: clean
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gcc -v
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$(CC) -v
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CPPFLAGS=-g scan-build --status-bugs -v $(MAKE) all
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endif
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@ -741,20 +741,20 @@ static int fuzzerTests(U32 seed, U32 nbTests, unsigned startTest, double compres
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static const U32 maxSampleLog = 19;
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size_t const srcBufferSize = (size_t)1<<maxSrcLog;
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BYTE* cNoiseBuffer[5];
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size_t const copyBufferSize= srcBufferSize + (1<<maxSampleLog);
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size_t const copyBufferSize = srcBufferSize + (1<<maxSampleLog);
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BYTE* const copyBuffer = (BYTE*)malloc (copyBufferSize);
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size_t const cBufferSize = ZSTD_compressBound(srcBufferSize);
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size_t const cBufferSize = ZSTD_compressBound(srcBufferSize);
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BYTE* const cBuffer = (BYTE*)malloc (cBufferSize);
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size_t const dstBufferSize = srcBufferSize;
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BYTE* const dstBuffer = (BYTE*)malloc (dstBufferSize);
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U32 result = 0;
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U32 testNb = 0;
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U32 coreSeed = seed;
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ZSTD_CStream* zc = ZSTD_createCStream(); /* will be reset sometimes */
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ZSTD_DStream* zd = ZSTD_createDStream(); /* will be reset sometimes */
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ZSTD_CStream* zc = ZSTD_createCStream(); /* will be re-created sometimes */
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ZSTD_DStream* zd = ZSTD_createDStream(); /* will be re-created sometimes */
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ZSTD_DStream* const zd_noise = ZSTD_createDStream();
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clock_t const startClock = clock();
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const BYTE* dict=NULL; /* can keep same dict on 2 consecutive tests */
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const BYTE* dict = NULL; /* can keep same dict on 2 consecutive tests */
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size_t dictSize = 0;
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U32 oldTestLog = 0;
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U32 const cLevelMax = bigTests ? (U32)ZSTD_maxCLevel() : g_cLevelMax_smallTests;
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@ -832,8 +832,7 @@ static int fuzzerTests(U32 seed, U32 nbTests, unsigned startTest, double compres
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if ((FUZ_rand(&lseed)&1) /* at beginning, to keep same nb of rand */
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&& oldTestLog /* at least one test happened */ && resetAllowed) {
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maxTestSize = FUZ_randomLength(&lseed, oldTestLog+2);
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if (maxTestSize >= srcBufferSize)
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maxTestSize = srcBufferSize-1;
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maxTestSize = MIN(maxTestSize, srcBufferSize-16);
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{ U64 const pledgedSrcSize = (FUZ_rand(&lseed) & 3) ? 0 : maxTestSize;
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CHECK_Z( ZSTD_resetCStream(zc, pledgedSrcSize) );
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}
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@ -999,15 +998,16 @@ static int fuzzerTests_MT(U32 seed, U32 nbTests, unsigned startTest, double comp
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U32 result = 0;
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U32 testNb = 0;
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U32 coreSeed = seed;
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ZSTDMT_CCtx* zc = ZSTDMT_createCCtx(2); /* will be reset sometimes */
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U32 nbThreads = 2;
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ZSTDMT_CCtx* zc = ZSTDMT_createCCtx(nbThreads); /* will be reset sometimes */
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ZSTD_DStream* zd = ZSTD_createDStream(); /* will be reset sometimes */
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ZSTD_DStream* const zd_noise = ZSTD_createDStream();
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clock_t const startClock = clock();
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const BYTE* dict=NULL; /* can keep same dict on 2 consecutive tests */
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size_t dictSize = 0;
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U32 oldTestLog = 0;
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U32 const cLevelMax = bigTests ? (U32)ZSTD_maxCLevel() : g_cLevelMax_smallTests;
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U32 const nbThreadsMax = bigTests ? 5 : 2;
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int const cLevelMax = bigTests ? (U32)ZSTD_maxCLevel()-1 : g_cLevelMax_smallTests;
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U32 const nbThreadsMax = bigTests ? 4 : 2;
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/* allocations */
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cNoiseBuffer[0] = (BYTE*)malloc (srcBufferSize);
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@ -1043,8 +1043,9 @@ static int fuzzerTests_MT(U32 seed, U32 nbTests, unsigned startTest, double comp
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size_t maxTestSize;
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/* init */
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if (nbTests >= testNb) { DISPLAYUPDATE(2, "\r%6u/%6u ", testNb, nbTests); }
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else { DISPLAYUPDATE(2, "\r%6u ", testNb); }
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if (testNb < nbTests) {
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DISPLAYUPDATE(2, "\r%6u/%6u ", testNb, nbTests);
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} else { DISPLAYUPDATE(2, "\r%6u ", testNb); }
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FUZ_rand(&coreSeed);
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lseed = coreSeed ^ prime32;
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@ -1052,7 +1053,7 @@ static int fuzzerTests_MT(U32 seed, U32 nbTests, unsigned startTest, double comp
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/* some issues can only happen when reusing states */
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if ((FUZ_rand(&lseed) & 0xFF) == 131) {
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U32 const nbThreadsCandidate = (FUZ_rand(&lseed) % 6) + 1;
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U32 const nbThreads = MIN(nbThreadsCandidate, nbThreadsMax);
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nbThreads = MIN(nbThreadsCandidate, nbThreadsMax);
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DISPLAYLEVEL(5, "Creating new context with %u threads \n", nbThreads);
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ZSTDMT_freeCCtx(zc);
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zc = ZSTDMT_createCCtx(nbThreads);
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@ -1092,11 +1093,12 @@ static int fuzzerTests_MT(U32 seed, U32 nbTests, unsigned startTest, double comp
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} else {
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U32 const testLog = FUZ_rand(&lseed) % maxSrcLog;
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U32 const dictLog = FUZ_rand(&lseed) % maxSrcLog;
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U32 const cLevelCandidate = (FUZ_rand(&lseed) %
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(ZSTD_maxCLevel() -
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(MAX(testLog, dictLog) / 3))) +
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1;
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U32 const cLevel = MIN(cLevelCandidate, cLevelMax);
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int const cLevelCandidate = ( FUZ_rand(&lseed)
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% (ZSTD_maxCLevel() - (MAX(testLog, dictLog) / 2)) )
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+ 1;
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int const cLevelThreadAdjusted = cLevelCandidate - (nbThreads * 2) + 2; /* reduce cLevel when multiple threads to reduce memory consumption */
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int const cLevelMin = MAX(cLevelThreadAdjusted, 1); /* no negative cLevel yet */
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int const cLevel = MIN(cLevelMin, cLevelMax);
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maxTestSize = FUZ_rLogLength(&lseed, testLog);
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oldTestLog = testLog;
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/* random dictionary selection */
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