lib/zstd
1
0
Fork 0
mirror of https://github.com/facebook/zstd.git synced 2025-07-29 11:21:22 +03:00
Code Activity

add a lorem ipsum generator

Browse Source 
this generator replaces the statistical generator
for the general case when no statistic is requested.

Generated data features a compression level speed / ratio curve
which is more in line with expectation.
This commit is contained in:
Yann Collet
2024-01-29 15:00:32 -08:00
parent a7b4dafa03
commit d0b7da30e2
5 changed files with 259 additions and 12 deletions
Download Patch File Download Diff File Expand all files Collapse all files

17
programs/benchzstd.c
View File

@ -32,12 +32,13 @@
#include "benchfn.h"
#include "../lib/common/mem.h"
#ifndef ZSTD_STATIC_LINKING_ONLY
#define ZSTD_STATIC_LINKING_ONLY
# define ZSTD_STATIC_LINKING_ONLY
#endif
#include "../lib/zstd.h"
#include "datagen.h" /* RDG_genBuffer */
#include "lorem.h" /* LOREM_genBuffer */
#ifndef XXH_INLINE_ALL
#define XXH_INLINE_ALL
# define XXH_INLINE_ALL
#endif
#include "../lib/common/xxhash.h"
#include "benchzstd.h"
@ -701,7 +702,8 @@ int BMK_syntheticTest(int cLevel, double compressibility,
const ZSTD_compressionParameters* compressionParams,
int displayLevel, const BMK_advancedParams_t* adv)
{
char name[20] = {0};
char nameBuff[20] = {0};
const char* name = nameBuff;
size_t const benchedSize = 10000000;
void* srcBuffer;
BMK_benchOutcome_t res;
@ -719,10 +721,15 @@ int BMK_syntheticTest(int cLevel, double compressibility,
}
/* Fill input buffer */
RDG_genBuffer(srcBuffer, benchedSize, compressibility, 0.0, 0);
if (compressibility < 0.0) {
LOREM_genBuffer(srcBuffer, benchedSize, 0);
name = "Lorem ipsum";
} else {
RDG_genBuffer(srcBuffer, benchedSize, compressibility, 0.0, 0);
snprintf (nameBuff, sizeof(nameBuff), "Synthetic %2u%%", (unsigned)(compressibility*100));
}
/* Bench */
snprintf (name, sizeof(name), "Synthetic %2u%%", (unsigned)(compressibility*100));
res = BMK_benchCLevel(srcBuffer, benchedSize,
&benchedSize /* ? */, 1 /* ? */,
cLevel, compressionParams,