diff options
Diffstat (limited to 'programs')
| -rw-r--r-- | programs/bench.c | 24 |
1 files changed, 15 insertions, 9 deletions
diff --git a/programs/bench.c b/programs/bench.c index 51c07f5..33f5fcf 100644 --- a/programs/bench.c +++ b/programs/bench.c @@ -353,22 +353,28 @@ static int BMK_benchMem(const void* srcBuffer, size_t srcSize, static size_t BMK_findMaxMem(U64 requiredMem) { - size_t const step = 64 MB; - BYTE* testmem = NULL; + size_t step = 64 MB; + BYTE* testmem=NULL; requiredMem = (((requiredMem >> 26) + 1) << 26); - requiredMem += step; + requiredMem += 2*step; if (requiredMem > maxMemory) requiredMem = maxMemory; - do { - testmem = (BYTE*)malloc((size_t)requiredMem); - requiredMem -= step; - } while (!testmem); + while (!testmem) { + if (requiredMem > step) requiredMem -= step; + else requiredMem >>= 1; + testmem = (BYTE*) malloc ((size_t)requiredMem); + } + free (testmem); + + /* keep some space available */ + if (requiredMem > step) requiredMem -= step; + else requiredMem >>= 1; - free(testmem); - return (size_t)(requiredMem); + return (size_t)requiredMem; } + static void BMK_benchCLevel(void* srcBuffer, size_t benchedSize, const char* displayName, int cLevel, int cLevelLast, const size_t* fileSizes, unsigned nbFiles) |