futex-hash.c File Reference

#include <string.h>
#include <pthread.h>
#include <errno.h>
#include <signal.h>
#include <stdlib.h>
#include <linux/compiler.h>
#include <linux/kernel.h>
#include <sys/time.h>
#include "../util/stat.h"
#include <subcmd/parse-options.h>
#include "bench.h"
#include "futex.h"
#include "cpumap.h"
#include <err.h>

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Classes
struct	worker

Functions
static void *	workerfn (void *arg)
static void	toggle_done (int sig __maybe_unused, siginfo_t *info __maybe_unused, void *uc __maybe_unused)
static void	print_summary (void)
int	bench_futex_hash (int argc, const char **argv)

Variables
static unsigned int	nthreads = 0
static unsigned int	nsecs = 10
static unsigned int	nfutexes = 1024
static bool	fshared = false
static bool	done = false
static bool	silent = false
static int	futex_flag = 0
struct timeval start end	runtime
static pthread_mutex_t	thread_lock
static unsigned int	threads_starting
static struct stats	throughput_stats
static pthread_cond_t	thread_parent
static pthread_cond_t	thread_worker
static const struct option	options []
static const char *const	bench_futex_hash_usage []

Function Documentation

bench_futex_hash()

int bench_futex_hash	(	int	argc,
		const char **	argv
	)

Definition at line 118 of file futex-hash.c.

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print_summary()

static void print_summary ( void  )

static

Definition at line 108 of file futex-hash.c.

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toggle_done()

static void toggle_done ( int sig  __maybe_unused, siginfo_t *info  __maybe_unused, void *uc  __maybe_unused  )

static

Definition at line 98 of file futex-hash.c.

workerfn()

static void* workerfn ( void *  arg )

static

Definition at line 65 of file futex-hash.c.

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Variable Documentation

bench_futex_hash_usage

const char* const bench_futex_hash_usage[]

static

Initial value:

= {
    "perf bench futex hash <options>",
    NULL
}

Definition at line 60 of file futex-hash.c.

done

bool done = false

static

Definition at line 35 of file futex-hash.c.

fshared

bool fshared = false

static

Definition at line 35 of file futex-hash.c.

futex_flag

int futex_flag = 0

static

Definition at line 36 of file futex-hash.c.

nfutexes

unsigned int nfutexes = 1024

static

Definition at line 34 of file futex-hash.c.

nsecs

unsigned int nsecs = 10

static

Definition at line 32 of file futex-hash.c.

nthreads

unsigned int nthreads = 0

static

Definition at line 31 of file futex-hash.c.

options

const struct option options[]

static

Initial value:

= {
    OPT_UINTEGER('t', "threads", &nthreads, "Specify amount of threads"),
    OPT_UINTEGER('r', "runtime", &nsecs,    "Specify runtime (in seconds)"),
    OPT_UINTEGER('f', "futexes", &nfutexes, "Specify amount of futexes per threads"),
    OPT_BOOLEAN( 's', "silent",  &silent,   "Silent mode: do not display data/details"),
    OPT_BOOLEAN( 'S', "shared",  &fshared,  "Use shared futexes instead of private ones"),

}

Definition at line 51 of file futex-hash.c.

runtime

struct timeval start end runtime

Definition at line 38 of file futex-hash.c.

silent

bool silent = false

static

Definition at line 35 of file futex-hash.c.

thread_lock

pthread_mutex_t thread_lock

static

Definition at line 39 of file futex-hash.c.

thread_parent

pthread_cond_t thread_parent

static

Definition at line 42 of file futex-hash.c.

thread_worker

pthread_cond_t thread_worker

static

Definition at line 42 of file futex-hash.c.

threads_starting

unsigned int threads_starting

static

Definition at line 40 of file futex-hash.c.

throughput_stats

struct stats throughput_stats

static

Definition at line 41 of file futex-hash.c.