Add benchmarking code.
This commit is contained in:
parent
799b4a3fc5
commit
2a35666bfa
|
@ -23,6 +23,7 @@ libcmph_la_SOURCES = hash.h hash.c \
|
||||||
select.h select.c select_lookup_tables.h \
|
select.h select.c select_lookup_tables.h \
|
||||||
compressed_seq.h compressed_seq.c \
|
compressed_seq.h compressed_seq.c \
|
||||||
compressed_rank.h compressed_rank.c \
|
compressed_rank.h compressed_rank.c \
|
||||||
|
cmph_benchmark.h cmph_benchmark.cc \
|
||||||
cmph_time.h
|
cmph_time.h
|
||||||
|
|
||||||
libcmph_la_LDFLAGS = -version-info 0:0:0
|
libcmph_la_LDFLAGS = -version-info 0:0:0
|
||||||
|
|
|
@ -0,0 +1,103 @@
|
||||||
|
#include <assert.h>
|
||||||
|
#include <stdio.h>
|
||||||
|
#include <stdlib.h>
|
||||||
|
|
||||||
|
#include "cmph_benchmark.h"
|
||||||
|
|
||||||
|
typedef struct {
|
||||||
|
const char* name;
|
||||||
|
void (*func)(int);
|
||||||
|
struct rusage begin;
|
||||||
|
struct rusage end;
|
||||||
|
} benchmark_t;
|
||||||
|
|
||||||
|
static benchmark_t* global_benchmarks = NULL;
|
||||||
|
|
||||||
|
/* Subtract the `struct timeval' values X and Y,
|
||||||
|
storing the result in RESULT.
|
||||||
|
Return 1 if the difference is negative, otherwise 0. */
|
||||||
|
|
||||||
|
int timeval_subtract (
|
||||||
|
struct timeval *result, struct timeval *x, struct timeval* y) {
|
||||||
|
/* Perform the carry for the later subtraction by updating y. */
|
||||||
|
if (x->tv_usec < y->tv_usec) {
|
||||||
|
int nsec = (y->tv_usec - x->tv_usec) / 1000000 + 1;
|
||||||
|
y->tv_usec -= 1000000 * nsec;
|
||||||
|
y->tv_sec += nsec;
|
||||||
|
}
|
||||||
|
if (x->tv_usec - y->tv_usec > 1000000) {
|
||||||
|
int nsec = (x->tv_usec - y->tv_usec) / 1000000;
|
||||||
|
y->tv_usec += 1000000 * nsec;
|
||||||
|
y->tv_sec -= nsec;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Compute the time remaining to wait.
|
||||||
|
tv_usec is certainly positive. */
|
||||||
|
result->tv_sec = x->tv_sec - y->tv_sec;
|
||||||
|
result->tv_usec = x->tv_usec - y->tv_usec;
|
||||||
|
|
||||||
|
/* Return 1 if result is negative. */
|
||||||
|
return x->tv_sec < y->tv_sec;
|
||||||
|
}
|
||||||
|
|
||||||
|
benchmark_t* find_benchmark(const char* name) {
|
||||||
|
benchmark_t* benchmark = global_benchmarks;
|
||||||
|
while (benchmark->name != NULL) if (strcmp(benchmark->name, name) != 0) break;
|
||||||
|
if (!benchmark->name) return NULL;
|
||||||
|
return benchmark;
|
||||||
|
}
|
||||||
|
|
||||||
|
int global_benchmarks_length() {
|
||||||
|
benchmark_t* benchmark;
|
||||||
|
int length = 0;
|
||||||
|
if (global_benchmarks == 0) return 0;
|
||||||
|
benchmark = global_benchmarks;
|
||||||
|
while (benchmark->name != NULL) ++length;
|
||||||
|
return length;
|
||||||
|
}
|
||||||
|
|
||||||
|
void bm_register(const char* name, void (*func)(int), int iters) {
|
||||||
|
benchmark_t benchmark;
|
||||||
|
int length = global_benchmarks_length();
|
||||||
|
benchmark.name = name;
|
||||||
|
benchmark.func = func;
|
||||||
|
assert(!find_benchmark(name));
|
||||||
|
global_benchmarks = realloc(global_benchmarks, length + 1);
|
||||||
|
global_benchmarks[length] = benchmark;
|
||||||
|
}
|
||||||
|
|
||||||
|
void bm_start(const char* name) {
|
||||||
|
benchmark_t* benchmark;
|
||||||
|
struct rusage rs;
|
||||||
|
|
||||||
|
benchmark = find_benchmark(name);
|
||||||
|
int ret = getrusage(RUSAGE_SELF, &rs);
|
||||||
|
if (ret != 0) {
|
||||||
|
perror("rusage failed");
|
||||||
|
exit(-1);
|
||||||
|
}
|
||||||
|
benchmark->begin = rs;
|
||||||
|
(*benchmark->func)(1);
|
||||||
|
}
|
||||||
|
|
||||||
|
void bm_end(const char* name) {
|
||||||
|
benchmark_t* benchmark;
|
||||||
|
struct rusage rs;
|
||||||
|
|
||||||
|
int ret = getrusage(RUSAGE_SELF, &rs);
|
||||||
|
if (ret != 0) {
|
||||||
|
perror("rusage failed");
|
||||||
|
exit(-1);
|
||||||
|
}
|
||||||
|
|
||||||
|
benchmark = find_benchmark(name);
|
||||||
|
benchmark->end = rs;
|
||||||
|
|
||||||
|
struct timeval utime;
|
||||||
|
timeval_subtract(&utime, &benchmark->end.ru_utime, &benchmark->begin.ru_utime);
|
||||||
|
struct timeval stime;
|
||||||
|
timeval_subtract(&stime, &benchmark->end.ru_stime, &benchmark->begin.ru_stime);
|
||||||
|
|
||||||
|
printf("User cpu time used: %ld.%6ld\n", utime.tv_sec, utime.tv_usec);
|
||||||
|
printf("System cpu time used: %ld.%6ld\n", stime.tv_sec, stime.tv_usec);
|
||||||
|
}
|
|
@ -0,0 +1,20 @@
|
||||||
|
#ifndef __CMPH_BENCHMARK_H__
|
||||||
|
#define __CMPH_BENCHMARK_H__
|
||||||
|
|
||||||
|
#include <sys/time.h>
|
||||||
|
#include <sys/resource.h>
|
||||||
|
|
||||||
|
#ifdef __cplusplus
|
||||||
|
extern "C"
|
||||||
|
{
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#define BM_REGISTER(func, iters) bm_register(##func, func, iters);
|
||||||
|
void bm_register(const char* name, void (*func)(int), int iters);
|
||||||
|
void run_benchmarks(int argc, char** argv);
|
||||||
|
|
||||||
|
#ifdef __cplusplus
|
||||||
|
}
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#endif // __CMPH_BENCHMARK_H__
|
Loading…
Reference in New Issue