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#include <assert.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <time.h>
#include <unistd.h>
#define LZ4_STATIC_LINKING_ONLY
#include "lz4.h"
#include "lz4hc.h"
#include "lz4frame.h"
#include "lz4frame_static.h"
#define LZ4F_CHECK(x) { typeof(x) _x = (x); if (LZ4F_isError(_x)) { fprintf(stderr, "Error!: %s\n", LZ4F_getErrorName(_x)); return 0; } }
typedef struct {
const char *run_name;
size_t iter;
LZ4_stream_t *ctx;
LZ4_streamHC_t *hcctx;
LZ4F_cctx *cctx;
LZ4F_dctx *dctx;
const char *dictbuf;
size_t dictsize;
char *obuf;
size_t osize;
const char* ibuf;
const char* isample;
size_t isize;
size_t num_ibuf;
char *checkbuf;
size_t checksize;
int clevel;
const LZ4F_CDict* cdict;
LZ4F_preferences_t* prefs;
const LZ4F_compressOptions_t* options;
} bench_params_t;
size_t compress_frame(bench_params_t *p) {
LZ4F_cctx *cctx = p->cctx;
char *obuf = p->obuf;
size_t osize = p->osize;
const char* isample = p->isample;
size_t isize = p->isize;
const LZ4F_CDict* cdict = p->cdict;
LZ4F_preferences_t* prefs = p->prefs;
size_t oused;
prefs->frameInfo.contentSize = isize;
oused = LZ4F_compressFrame_usingCDict(
cctx,
obuf,
osize,
isample,
isize,
cdict,
prefs);
LZ4F_CHECK(oused);
return oused;
}
size_t compress_begin(bench_params_t *p) {
LZ4F_cctx *cctx = p->cctx;
char *obuf = p->obuf;
size_t osize = p->osize;
const char* isample = p->isample;
size_t isize = p->isize;
const LZ4F_CDict* cdict = p->cdict;
LZ4F_preferences_t* prefs = p->prefs;
const LZ4F_compressOptions_t* options = p->options;
char *oend = obuf + osize;
size_t oused;
prefs->frameInfo.contentSize = isize;
oused = LZ4F_compressBegin_usingCDict(cctx, obuf, oend - obuf, cdict, prefs);
LZ4F_CHECK(oused);
obuf += oused;
oused = LZ4F_compressUpdate(
cctx,
obuf,
oend - obuf,
isample,
isize,
options);
LZ4F_CHECK(oused);
obuf += oused;
oused = LZ4F_compressEnd(cctx, obuf, oend - obuf, options);
LZ4F_CHECK(oused);
return obuf - p->obuf;
}
size_t compress_default(bench_params_t *p) {
char *obuf = p->obuf;
size_t osize = p->osize;
const char* isample = p->isample;
size_t isize = p->isize;
char *oend = obuf + osize;
size_t oused;
oused = LZ4_compress_default(isample, obuf, isize, oend - obuf);
obuf += oused;
return obuf - p->obuf;
}
size_t compress_extState(bench_params_t *p) {
LZ4_stream_t *ctx = p->ctx;
char *obuf = p->obuf;
size_t osize = p->osize;
const char* isample = p->isample;
size_t isize = p->isize;
int clevel = p->clevel;
char *oend = obuf + osize;
size_t oused;
oused = LZ4_compress_fast_extState_fastReset(
ctx, isample, obuf, isize, oend - obuf, clevel);
obuf += oused;
return obuf - p->obuf;
}
size_t compress_hc(bench_params_t *p) {
char *obuf = p->obuf;
size_t osize = p->osize;
const char* isample = p->isample;
size_t isize = p->isize;
int clevel = p->clevel;
char *oend = obuf + osize;
size_t oused;
oused = LZ4_compress_HC(
isample, obuf, isize, oend - obuf, clevel);
obuf += oused;
return obuf - p->obuf;
}
size_t compress_hc_extState(bench_params_t *p) {
LZ4_streamHC_t *hcctx = p->hcctx;
char *obuf = p->obuf;
size_t osize = p->osize;
const char* isample = p->isample;
size_t isize = p->isize;
int clevel = p->clevel;
char *oend = obuf + osize;
size_t oused;
oused = LZ4_compress_HC_extStateHC(
hcctx,
isample, obuf,
isize, oend - obuf, clevel);
obuf += oused;
return obuf - p->obuf;
}
size_t check_lz4(bench_params_t *p, size_t csize) {
(void)csize;
memset(p->checkbuf, 0xFF, p->checksize);
return LZ4_decompress_fast_usingDict(p->obuf, p->checkbuf, p->isize,
p->dictbuf, p->dictsize)
&& !memcmp(p->isample, p->checkbuf, p->isize);
}
size_t check_lz4f(bench_params_t *p, size_t csize) {
size_t cp = 0;
size_t dp = 0;
size_t dsize = p->checksize;
size_t cleft = csize;
size_t dleft = dsize;
size_t ret;
memset(p->checkbuf, 0xFF, p->checksize);
LZ4F_resetDecompressionContext(p->dctx);
do {
ret = LZ4F_decompress_usingDict(
p->dctx, p->checkbuf + dp, &dleft, p->obuf + cp, &cleft,
p->dictbuf, p->dictsize, NULL);
cp += cleft;
dp += dleft;
cleft = csize - cp;
dleft = dsize - dp;
if (LZ4F_isError(ret)) return 0;
} while (cleft);
return !memcmp(p->isample, p->checkbuf, p->isize);
}
uint64_t bench(
const char *bench_name,
size_t (*fun)(bench_params_t *),
size_t (*checkfun)(bench_params_t *, size_t),
bench_params_t *params
) {
struct timespec start, end;
size_t i, osize = 0, o = 0;
size_t time_taken = 0;
uint64_t total_repetitions = 0;
uint64_t repetitions = 2;
if (clock_gettime(CLOCK_MONOTONIC_RAW, &start)) return 0;
while (time_taken < 25 * 1000 * 1000) { // benchmark over at least 1ms
if (total_repetitions) {
repetitions = total_repetitions; // double previous
}
for (i = 0; i < repetitions; i++) {
params->iter = i;
if (params->num_ibuf == 1) {
params->isample = params->ibuf;
} else {
params->isample = params->ibuf + ((i * 2654435761U) % ((params->num_ibuf - 1) * params->isize));
}
o = fun(params);
if (!o) {
fprintf(
stderr,
"%-19s: %-30s @ lvl %2d: %8ld B: FAILED!\n",
params->run_name, bench_name, params->clevel,
params->isize);
return 0;
}
osize += o;
}
if (clock_gettime(CLOCK_MONOTONIC_RAW, &end)) return 0;
time_taken = (1000 * 1000 * 1000 * end.tv_sec + end.tv_nsec) -
(1000 * 1000 * 1000 * start.tv_sec + start.tv_nsec);
total_repetitions += repetitions;
}
o = checkfun(params, o);
if (!o) {
fprintf(
stderr,
"%-19s: %-30s @ lvl %2d: %8ld B: CHECK FAILED!\n",
params->run_name, bench_name, params->clevel,
params->isize);
return 0;
}
fprintf(
stderr,
"%-19s: %-30s @ lvl %2d: %8ld B -> %8ld B, %6ld iters, %10ld ns, %10ld ns/iter, %7.2lf MB/s\n",
params->run_name, bench_name, params->clevel,
params->isize, osize / total_repetitions,
total_repetitions, time_taken, time_taken / total_repetitions,
((double) 1000 * params->isize * total_repetitions) / time_taken
);
return time_taken;
}
int main(int argc, char *argv[]) {
char *run_name;
struct stat st;
size_t bytes_read;
const char *dict_fn;
size_t dict_size;
char *dict_buf;
FILE *dict_file;
const char *in_fn;
size_t in_size;
size_t num_in_buf;
size_t cur_in_buf;
char *in_buf;
FILE *in_file;
size_t out_size;
char *out_buf;
size_t check_size;
char *check_buf;
LZ4_stream_t *ctx;
LZ4_streamHC_t *hcctx;
LZ4F_cctx *cctx;
LZ4F_dctx *dctx;
LZ4F_CDict *cdict;
LZ4F_preferences_t prefs;
LZ4F_compressOptions_t options;
int clevels[] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12};
unsigned int clevelidx;
bench_params_t params;
if (argc != 4) return 1;
run_name = argv[1];
dict_fn = argv[2];
in_fn = argv[3];
if (stat(dict_fn, &st)) return 1;
dict_size = st.st_size;
dict_buf = (char *)malloc(dict_size);
if (!dict_buf) return 1;
dict_file = fopen(dict_fn, "r");
bytes_read = fread(dict_buf, 1, dict_size, dict_file);
if (bytes_read != dict_size) return 1;
if (stat(in_fn, &st)) return 1;
in_size = st.st_size;
num_in_buf = 256 * 1024 * 1024 / in_size;
if (num_in_buf == 0) {
num_in_buf = 1;
}
in_buf = (char *)malloc(in_size * num_in_buf);
if (!in_buf) return 1;
in_file = fopen(in_fn, "r");
bytes_read = fread(in_buf, 1, in_size, in_file);
if (bytes_read != in_size) return 1;
for(cur_in_buf = 1; cur_in_buf < num_in_buf; cur_in_buf++) {
memcpy(in_buf + cur_in_buf * in_size, in_buf, in_size);
}
check_size = in_size;
check_buf = (char *)malloc(check_size);
if (!check_buf) return 1;
memset(&prefs, 0, sizeof(prefs));
prefs.autoFlush = 1;
if (in_size < 64 * 1024)
prefs.frameInfo.blockMode = LZ4F_blockIndependent;
prefs.frameInfo.contentSize = in_size;
memset(&options, 0, sizeof(options));
options.stableSrc = 1;
out_size = LZ4F_compressFrameBound(in_size, &prefs);
out_buf = (char *)malloc(out_size);
if (!out_buf) return 1;
if (LZ4F_isError(LZ4F_createCompressionContext(&cctx, LZ4F_VERSION))) return 1;
if (cctx == NULL) return 1;
if (LZ4F_isError(LZ4F_createDecompressionContext(&dctx, LZ4F_VERSION))) return 1;
if (cctx == NULL) return 1;
ctx = LZ4_createStream();
if (ctx == NULL) return 1;
hcctx = LZ4_createStreamHC();
if (hcctx == NULL) return 1;
cdict = LZ4F_createCDict(dict_buf, dict_size);
if (!cdict) return 1;
fprintf(stderr, "dict size: %zd\n", dict_size);
fprintf(stderr, "input size: %zd\n", in_size);
params.run_name = run_name;
params.ctx = ctx;
params.hcctx = hcctx;
params.cctx = cctx;
params.dctx = dctx;
params.dictbuf = dict_buf;
params.dictsize = dict_size;
params.obuf = out_buf;
params.osize = out_size;
params.ibuf = in_buf;
params.isize = in_size;
params.num_ibuf = num_in_buf;
params.checkbuf = check_buf;
params.checksize = check_size;
params.clevel = 1;
params.cdict = NULL;
params.prefs = &prefs;
params.options = &options;
for (clevelidx = 0; clevelidx < sizeof(clevels) / sizeof(clevels[0]); clevelidx++) {
params.clevel = clevels[clevelidx];
params.prefs->compressionLevel = clevels[clevelidx];
params.cdict = NULL;
bench("LZ4_compress_default" , compress_default , check_lz4 , ¶ms);
bench("LZ4_compress_fast_extState" , compress_extState , check_lz4 , ¶ms);
bench("LZ4_compress_HC" , compress_hc , check_lz4 , ¶ms);
bench("LZ4_compress_HC_extStateHC" , compress_hc_extState, check_lz4 , ¶ms);
bench("LZ4F_compressFrame" , compress_frame , check_lz4f, ¶ms);
bench("LZ4F_compressBegin" , compress_begin , check_lz4f, ¶ms);
params.cdict = cdict;
bench("LZ4F_compressFrame_usingCDict", compress_frame , check_lz4f, ¶ms);
bench("LZ4F_compressBegin_usingCDict", compress_begin , check_lz4f, ¶ms);
}
return 0;
}
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