Example #1
0
static int parse_cpus_opt(const struct option *opt, const char *arg, int unset);
static int parse_nodes_opt(const struct option *opt, const char *arg, int unset);

struct params p0;

static const struct option options[] = {
	OPT_INTEGER('p', "nr_proc"	, &p0.nr_proc,		"number of processes"),
	OPT_INTEGER('t', "nr_threads"	, &p0.nr_threads,	"number of threads per process"),

	OPT_STRING('G', "mb_global"	, &p0.mb_global_str,	"MB", "global  memory (MBs)"),
	OPT_STRING('P', "mb_proc"	, &p0.mb_proc_str,	"MB", "process memory (MBs)"),
	OPT_STRING('L', "mb_proc_locked", &p0.mb_proc_locked_str,"MB", "process serialized/locked memory access (MBs), <= process_memory"),
	OPT_STRING('T', "mb_thread"	, &p0.mb_thread_str,	"MB", "thread  memory (MBs)"),

	OPT_UINTEGER('l', "nr_loops"	, &p0.nr_loops,		"max number of loops to run"),
	OPT_UINTEGER('s', "nr_secs"	, &p0.nr_secs,		"max number of seconds to run"),
	OPT_UINTEGER('u', "usleep"	, &p0.sleep_usecs,	"usecs to sleep per loop iteration"),

	OPT_BOOLEAN('R', "data_reads"	, &p0.data_reads,	"access the data via writes (can be mixed with -W)"),
	OPT_BOOLEAN('W', "data_writes"	, &p0.data_writes,	"access the data via writes (can be mixed with -R)"),
	OPT_BOOLEAN('B', "data_backwards", &p0.data_backwards,	"access the data backwards as well"),
	OPT_BOOLEAN('Z', "data_zero_memset", &p0.data_zero_memset,"access the data via glibc bzero only"),
	OPT_BOOLEAN('r', "data_rand_walk", &p0.data_rand_walk,	"access the data with random (32bit LFSR) walk"),


	OPT_BOOLEAN('z', "init_zero"	, &p0.init_zero,	"bzero the initial allocations"),
	OPT_BOOLEAN('I', "init_random"	, &p0.init_random,	"randomize the contents of the initial allocations"),
	OPT_BOOLEAN('0', "init_cpu0"	, &p0.init_cpu0,	"do the initial allocations on CPU#0"),
	OPT_INTEGER('x', "perturb_secs", &p0.perturb_secs,	"perturb thread 0/0 every X secs, to test convergence stability"),
Example #2
0
static int __cmd_record(int argc, const char **argv, struct perf_mem *mem)
{
	int rec_argc, i = 0, j;
	const char **rec_argv;
	int ret;
	bool all_user = false, all_kernel = false;
	struct option options[] = {
	OPT_CALLBACK('e', "event", &mem, "event",
		     "event selector. use 'perf mem record -e list' to list available events",
		     parse_record_events),
	OPT_UINTEGER(0, "ldlat", &perf_mem_events__loads_ldlat, "mem-loads latency"),
	OPT_INCR('v', "verbose", &verbose,
		 "be more verbose (show counter open errors, etc)"),
	OPT_BOOLEAN('U', "all-user", &all_user, "collect only user level data"),
	OPT_BOOLEAN('K', "all-kernel", &all_kernel, "collect only kernel level data"),
	OPT_END()
	};

	argc = parse_options(argc, argv, options, record_mem_usage,
			     PARSE_OPT_KEEP_UNKNOWN);

	rec_argc = argc + 9; /* max number of arguments */
	rec_argv = calloc(rec_argc + 1, sizeof(char *));
	if (!rec_argv)
		return -1;

	rec_argv[i++] = "record";

	if (mem->operation & MEM_OPERATION_LOAD)
		perf_mem_events[PERF_MEM_EVENTS__LOAD].record = true;

	if (mem->operation & MEM_OPERATION_STORE)
		perf_mem_events[PERF_MEM_EVENTS__STORE].record = true;

	if (perf_mem_events[PERF_MEM_EVENTS__LOAD].record)
		rec_argv[i++] = "-W";

	rec_argv[i++] = "-d";

	if (mem->phys_addr)
		rec_argv[i++] = "--phys-data";

	for (j = 0; j < PERF_MEM_EVENTS__MAX; j++) {
		if (!perf_mem_events[j].record)
			continue;

		if (!perf_mem_events[j].supported) {
			pr_err("failed: event '%s' not supported\n",
			       perf_mem_events__name(j));
			free(rec_argv);
			return -1;
		}

		rec_argv[i++] = "-e";
		rec_argv[i++] = perf_mem_events__name(j);
	};

	if (all_user)
		rec_argv[i++] = "--all-user";

	if (all_kernel)
		rec_argv[i++] = "--all-kernel";

	for (j = 0; j < argc; j++, i++)
		rec_argv[i] = argv[j];

	if (verbose > 0) {
		pr_debug("calling: record ");

		while (rec_argv[j]) {
			pr_debug("%s ", rec_argv[j]);
			j++;
		}
		pr_debug("\n");
	}

	ret = cmd_record(i, rec_argv);
	free(rec_argv);
	return ret;
}
Example #3
0
/*
 * How many tasks to requeue at a time.
 * Default to 1 in order to make the kernel work more.
 */
static unsigned int nrequeue = 1;

static pthread_t *worker;
static bool done = false, silent = false, fshared = false;
static pthread_mutex_t thread_lock;
static pthread_cond_t thread_parent, thread_worker;
static struct stats requeuetime_stats, requeued_stats;
static unsigned int ncpus, threads_starting, nthreads = 0;
static int futex_flag = 0;

static const struct option options[] = {
	OPT_UINTEGER('t', "threads",  &nthreads, "Specify amount of threads"),
	OPT_UINTEGER('q', "nrequeue", &nrequeue, "Specify amount of threads to requeue at once"),
	OPT_BOOLEAN( 's', "silent",   &silent,   "Silent mode: do not display data/details"),
	OPT_BOOLEAN( 'S', "shared",   &fshared,  "Use shared futexes instead of private ones"),
	OPT_END()
};

static const char * const bench_futex_requeue_usage[] = {
	"perf bench futex requeue <options>",
	NULL
};

static void print_summary(void)
{
	double requeuetime_avg = avg_stats(&requeuetime_stats);
	double requeuetime_stddev = stddev_stats(&requeuetime_stats);
Example #4
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, thread_worker;

struct worker {
	int tid;
	u_int32_t *futex;
	pthread_t thread;
	unsigned long ops;
};

static const struct option options[] = {
	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"),
	OPT_BOOLEAN( 'a', "attached", &attached, "Use attached futexes"),
	OPT_END()
};

static const char * const bench_futex_hash_usage[] = {
	"perf bench futex hash <options>",
	NULL
};

static void *workerfn(void *arg)
{
Example #5
0
static unsigned int nwakes = 1;

/* all threads will block on the same futex -- hash bucket chaos ;) */
static u_int32_t futex = 0;

static pthread_t *blocked_worker;
static bool done = false, silent = false, fshared = false;
static unsigned int nblocked_threads = 0, nwaking_threads = 0;
static pthread_mutex_t thread_lock;
static pthread_cond_t thread_parent, thread_worker;
static struct stats waketime_stats, wakeup_stats;
static unsigned int ncpus, threads_starting;
static int futex_flag = 0;

static const struct option options[] = {
	OPT_UINTEGER('t', "threads", &nblocked_threads, "Specify amount of threads"),
	OPT_UINTEGER('w', "nwakers", &nwaking_threads, "Specify amount of waking 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"),
	OPT_END()
};

static const char * const bench_futex_wake_parallel_usage[] = {
	"perf bench futex wake-parallel <options>",
	NULL
};

static void *waking_workerfn(void *arg)
{
	struct thread_data *waker = (struct thread_data *) arg;
	struct timeval start, end;
Example #6
0
/*
 * How many wakeups to do at a time.
 * Default to 1 in order to make the kernel work more.
 */
static unsigned int nwakes = 1;

pthread_t *worker;
static bool done = false, silent = false, fshared = false;
static pthread_mutex_t thread_lock;
static pthread_cond_t thread_parent, thread_worker;
static struct stats waketime_stats, wakeup_stats;
static unsigned int ncpus, threads_starting, nthreads = 0;
static int futex_flag = 0;

static const struct option options[] = {
	OPT_UINTEGER('t', "threads", &nthreads, "Specify amount of threads"),
	OPT_UINTEGER('w', "nwakes",  &nwakes,   "Specify amount of threads to wake at once"),
	OPT_BOOLEAN( 's', "silent",  &silent,   "Silent mode: do not display data/details"),
	OPT_BOOLEAN( 'S', "shared",  &fshared,  "Use shared futexes instead of private ones"),
	OPT_END()
};

static const char * const bench_futex_wake_usage[] = {
	"perf bench futex wake <options>",
	NULL
};

static void *workerfn(void *arg __maybe_unused)
{
	pthread_mutex_lock(&thread_lock);
	threads_starting--;
Example #7
0
	/* Close the fds we have left */
	if (!thread_mode)
		for (i = 0; i < num_fds; i++)
			close(snd_ctx->out_fds[i]);

	/* Return number of children to reap */
	return num_fds * 2;
}

static const struct option options[] = {
	OPT_BOOLEAN('p', "pipe", &use_pipes,
		    "Use pipe() instead of socketpair()"),
	OPT_BOOLEAN('t', "thread", &thread_mode,
		    "Be multi thread instead of multi process"),
	OPT_UINTEGER('g', "group", &num_groups, "Specify number of groups"),
	OPT_UINTEGER('l', "loop", &loops, "Specify number of loops"),
	OPT_END()
};

static const char * const bench_sched_message_usage[] = {
	"perf bench sched messaging <options>",
	NULL
};

int bench_sched_messaging(int argc, const char **argv,
		    const char *prefix __maybe_unused)
{
	unsigned int i, total_children;
	struct timeval start, stop, diff;
	unsigned int num_fds = 20;
	for_each_bench(coll, bench)
		printf("%14s: %s\n", bench->name, bench->summary);

	printf("\n");
}

static const char *bench_format_str;

/* Output/formatting style, exported to benchmark modules: */
int bench_format = BENCH_FORMAT_DEFAULT;
unsigned int bench_repeat = 10; /* default number of times to repeat the run */

static const struct option bench_options[] = {
	OPT_STRING('f', "format", &bench_format_str, "default", "Specify format style"),
	OPT_UINTEGER('r', "repeat",  &bench_repeat,   "Specify amount of times to repeat the run"),
	OPT_END()
};

static const char * const bench_usage[] = {
	"perf bench [<common options>] <collection> <benchmark> [<options>]",
	NULL
};

static void print_usage(void)
{
	struct collection *coll;
	int i;

	printf("Usage: \n");
	for (i = 0; bench_usage[i]; i++)
Example #9
0
static u_int32_t global_futex = 0;
static struct worker *worker;
static unsigned int nsecs = 10;
static bool silent = false, multi = false;
static bool done = false, fshared = false;
static unsigned int ncpus, nthreads = 0;
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, thread_worker;

static const struct option options[] = {
	OPT_UINTEGER('t', "threads",  &nthreads, "Specify amount of threads"),
	OPT_UINTEGER('r', "runtime", &nsecs,     "Specify runtime (in seconds)"),
	OPT_BOOLEAN( 'M', "multi",   &multi,     "Use multiple futexes"),
	OPT_BOOLEAN( 's', "silent",  &silent,    "Silent mode: do not display data/details"),
	OPT_BOOLEAN( 'S', "shared",  &fshared,   "Use shared futexes instead of private ones"),
	OPT_END()
};

static const char * const bench_futex_lock_pi_usage[] = {
	"perf bench futex requeue <options>",
	NULL
};

static void print_summary(void)
{
	unsigned long avg = avg_stats(&throughput_stats);