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updated fullbench, to include datagen

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This commit is contained in:
Yann Collet
2015-02-11 08:19:57 +01:00
parent fb98fd0bd4
commit f96780683b
3 changed files with 6 additions and 61 deletions
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programs/fullbench.c
+2 -57
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@@ -115,8 +115,6 @@
#define DEFAULT_CHUNKSIZE (4<<20)
static double g_compressibilityDefault = 0.50;
static const U32 prime1 = 2654435761U;
static const U32 prime2 = 2246822519U;
static const size_t sampleSize = 10000000;
@@ -216,59 +214,6 @@ static U64 BMK_GetFileSize(char* infilename)
}
#if 1
static U32 BMK_rotl32(unsigned val32, unsigned nbBits) { return((val32 << nbBits) | (val32 >> (32 - nbBits))); }
static U32 BMK_rand(U32* src)
{
U32 rand32 = *src;
rand32 *= prime1;
rand32 += prime2;
rand32 = BMK_rotl32(rand32, 13);
*src = rand32;
return rand32 >> 9;
}
#define BMK_RAND15BITS ( BMK_rand(&seed) & 0x7FFF)
#define BMK_RANDLENGTH ((BMK_rand(&seed) & 3) ? (BMK_rand(&seed) % 15) : (BMK_rand(&seed) % 510) + 15)
#define BMK_RANDCHAR (BYTE)((BMK_rand(&seed) & 63) + '0')
static void BMK_datagen(void* buffer, size_t bufferSize, double proba, U32 seed)
{
BYTE* BBuffer = (BYTE*)buffer;
unsigned pos = 0;
U32 P32 = (U32)(32768 * proba);
/* First Byte */
BBuffer[pos++] = BMK_RANDCHAR;
while (pos < bufferSize)
{
/* Select : Literal (noise) or copy (within 64K) */
if (BMK_RAND15BITS < P32)
{
/* Match */
size_t match, end;
unsigned length = BMK_RANDLENGTH + 4;
unsigned offset = BMK_RAND15BITS + 1;
if (offset > pos) offset = pos;
match = pos - offset;
end = pos + length;
if (end > bufferSize) end = bufferSize;
while (pos < end) BBuffer[pos++] = BBuffer[match++];
}
else
{
/* Literal */
size_t end;
unsigned length = BMK_RANDLENGTH;
end = pos + length;
if (end > bufferSize) end = bufferSize;
while (pos < end) BBuffer[pos++] = BMK_RANDCHAR;
}
}
}
#endif
/*********************************************************
* Benchmark wrappers
*********************************************************/
@@ -515,8 +460,8 @@ int benchSample(U32 benchNb)
}
/* Fill buffer */
BMK_datagen(origBuff, benchedSize, g_compressibilityDefault, 0);
//RDG_generate(benchedSize, 0, g_compressibilityDefault, g_compressibilityDefault / 3.6);
//BMK_datagen(origBuff, benchedSize, g_compressibilityDefault, 0);
RDG_genBuffer(origBuff, benchedSize, g_compressibilityDefault, 0.0, 0);
/* bench */
DISPLAY("\r%79s\r", "");