mirror of
https://github.com/torvalds/linux.git
synced 2026-01-12 00:42:35 +08:00
a8f0992998
Add two mmap() workloads: one that eagerly populates a region and
another that demand faults it in.
The intent is to probe the memory subsytem performance incurred
by mmap().
$ perf bench mem mmap -s 4gb -p 4kb -l 10 -f populate
# Running 'mem/mmap' benchmark:
# function 'populate' (Eagerly populated map())
# Copying 4gb bytes ...
1.811691 GB/sec
$ perf bench mem mmap -s 4gb -p 2mb -l 10 -f populate
# Running 'mem/mmap' benchmark:
# function 'populate' (Eagerly populated mmap())
# Copying 4gb bytes ...
12.272017 GB/sec
$ perf bench mem mmap -s 4gb -p 1gb -l 10 -f populate
# Running 'mem/mmap' benchmark:
# function 'populate' (Eagerly populated mmap())
# Copying 4gb bytes ...
17.085927 GB/sec
Signed-off-by: Ankur Arora <ankur.a.arora@oracle.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Mateusz Guzik <mjguzik@gmail.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Raghavendra K T <raghavendra.kt@amd.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
76 lines
2.6 KiB
C
76 lines
2.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
#ifndef BENCH_H
|
|
#define BENCH_H
|
|
|
|
#include <sys/time.h>
|
|
|
|
extern struct timeval bench__start, bench__end, bench__runtime;
|
|
|
|
/*
|
|
* The madvise transparent hugepage constants were added in glibc
|
|
* 2.13. For compatibility with older versions of glibc, define these
|
|
* tokens if they are not already defined.
|
|
*/
|
|
# ifndef MADV_HUGEPAGE
|
|
# define MADV_HUGEPAGE 14
|
|
# endif
|
|
# ifndef MADV_NOHUGEPAGE
|
|
# define MADV_NOHUGEPAGE 15
|
|
# endif
|
|
|
|
int bench_numa(int argc, const char **argv);
|
|
int bench_sched_messaging(int argc, const char **argv);
|
|
int bench_sched_pipe(int argc, const char **argv);
|
|
int bench_sched_seccomp_notify(int argc, const char **argv);
|
|
int bench_syscall_basic(int argc, const char **argv);
|
|
int bench_syscall_getpgid(int argc, const char **argv);
|
|
int bench_syscall_fork(int argc, const char **argv);
|
|
int bench_syscall_execve(int argc, const char **argv);
|
|
int bench_mem_memcpy(int argc, const char **argv);
|
|
int bench_mem_memset(int argc, const char **argv);
|
|
int bench_mem_mmap(int argc, const char **argv);
|
|
int bench_mem_find_bit(int argc, const char **argv);
|
|
int bench_futex_hash(int argc, const char **argv);
|
|
int bench_futex_wake(int argc, const char **argv);
|
|
int bench_futex_wake_parallel(int argc, const char **argv);
|
|
int bench_futex_requeue(int argc, const char **argv);
|
|
/* pi futexes */
|
|
int bench_futex_lock_pi(int argc, const char **argv);
|
|
int bench_epoll_wait(int argc, const char **argv);
|
|
int bench_epoll_ctl(int argc, const char **argv);
|
|
int bench_synthesize(int argc, const char **argv);
|
|
int bench_kallsyms_parse(int argc, const char **argv);
|
|
int bench_inject_build_id(int argc, const char **argv);
|
|
int bench_evlist_open_close(int argc, const char **argv);
|
|
int bench_breakpoint_thread(int argc, const char **argv);
|
|
int bench_breakpoint_enable(int argc, const char **argv);
|
|
int bench_uprobe_baseline(int argc, const char **argv);
|
|
int bench_uprobe_empty(int argc, const char **argv);
|
|
int bench_uprobe_trace_printk(int argc, const char **argv);
|
|
int bench_uprobe_empty_ret(int argc, const char **argv);
|
|
int bench_uprobe_trace_printk_ret(int argc, const char **argv);
|
|
int bench_pmu_scan(int argc, const char **argv);
|
|
|
|
#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;
|
|
extern unsigned int bench_repeat;
|
|
|
|
#ifndef HAVE_PTHREAD_ATTR_SETAFFINITY_NP
|
|
#include <pthread.h>
|
|
#include <linux/compiler.h>
|
|
static inline int pthread_attr_setaffinity_np(pthread_attr_t *attr __maybe_unused,
|
|
size_t cpusetsize __maybe_unused,
|
|
cpu_set_t *cpuset __maybe_unused)
|
|
{
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
#endif
|