1. 根目录:
2. tools
3. perf
4. bench
5. bench.h

#ifndef BENCH_H
#define BENCH_H

extern int bench_sched_messaging(int argc, const char **argv, const char *prefix);
extern int bench_sched_pipe(int argc, const char **argv, const char *prefix);
extern int bench_mem_memcpy(int argc, const char **argv, const char *prefix __used);
extern int bench_mem_memset(int argc, const char **argv, const char *prefix);

#define BENCH_FORMAT_DEFAULT_STR	"default"
#define BENCH_FORMAT_DEFAULT		0
#define BENCH_FORMAT_SIMPLE_STR		"simple"
#define BENCH_FORMAT_SIMPLE		1

#define BENCH_FORMAT_UNKNOWN		-1

extern int bench_format;

#endif