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perf bench: Update use of pthread mutex/cond

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Switch to the use of mutex wrappers that provide better error checking.

Signed-off-by: Ian Rogers <irogers@google.com>
Reviewed-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexandre Truong <alexandre.truong@arm.com>
Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Andres Freund <andres@anarazel.de>
Cc: Andrii Nakryiko <andrii@kernel.org>
Cc: André Almeida <andrealmeid@igalia.com>
Cc: Athira Jajeev <atrajeev@linux.vnet.ibm.com>
Cc: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Cc: Colin Ian King <colin.king@intel.com>
Cc: Dario Petrillo <dario.pk1@gmail.com>
Cc: Darren Hart <dvhart@infradead.org>
Cc: Dave Marchevsky <davemarchevsky@fb.com>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: Fangrui Song <maskray@google.com>
Cc: Hewenliang <hewenliang4@huawei.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jason Wang <wangborong@cdjrlc.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Kim Phillips <kim.phillips@amd.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Martin Liška <mliska@suse.cz>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Pavithra Gurushankar <gpavithrasha@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Quentin Monnet <quentin@isovalent.com>
Cc: Ravi Bangoria <ravi.bangoria@amd.com>
Cc: Remi Bernon <rbernon@codeweavers.com>
Cc: Riccardo Mancini <rickyman7@gmail.com>
Cc: Song Liu <songliubraving@fb.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Thomas Richter <tmricht@linux.ibm.com>
Cc: Tom Rix <trix@redhat.com>
Cc: Weiguo Li <liwg06@foxmail.com>
Cc: Wenyu Liu <liuwenyu7@huawei.com>
Cc: William Cohen <wcohen@redhat.com>
Cc: Zechuan Chen <chenzechuan1@huawei.com>
Cc: bpf@vger.kernel.org
Cc: llvm@lists.linux.dev
Cc: yaowenbin <yaowenbin1@huawei.com>
Link: https://lore.kernel.org/r/20220826164242.43412-3-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Ian Rogers 2022-08-26 09:42:26 -07:00 committed by Arnaldo Carvalho de Melo
parent e57d897703
commit a64d3af5d9
8 changed files with 153 additions and 171 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

33
tools/perf/bench/epoll-ctl.c
View File

@ -23,6 +23,7 @@
#include <sys/eventfd.h>
#include <perf/cpumap.h>
#include "../util/mutex.h"
#include "../util/stat.h"
#include <subcmd/parse-options.h>
#include "bench.h"
@ -58,10 +59,10 @@ static unsigned int nested = 0;
/* amount of fds to monitor, per thread */
static unsigned int nfds = 64;
static pthread_mutex_t thread_lock;
static struct mutex thread_lock;
static unsigned int threads_starting;
static struct stats all_stats[EPOLL_NR_OPS];
static pthread_cond_t thread_parent, thread_worker;
static struct cond thread_parent, thread_worker;
struct worker {
int tid;
@ -174,12 +175,12 @@ static void *workerfn(void *arg)
struct timespec ts = { .tv_sec = 0,
.tv_nsec = 250 };
pthread_mutex_lock(&thread_lock);
mutex_lock(&thread_lock);
threads_starting--;
if (!threads_starting)
pthread_cond_signal(&thread_parent);
pthread_cond_wait(&thread_worker, &thread_lock);
pthread_mutex_unlock(&thread_lock);
cond_signal(&thread_parent);
cond_wait(&thread_worker, &thread_lock);
mutex_unlock(&thread_lock);
/* Let 'em loose */
do {
@ -367,9 +368,9 @@ int bench_epoll_ctl(int argc, const char **argv)
for (i = 0; i < EPOLL_NR_OPS; i++)
init_stats(&all_stats[i]);
pthread_mutex_init(&thread_lock, NULL);
pthread_cond_init(&thread_parent, NULL);
pthread_cond_init(&thread_worker, NULL);
mutex_init(&thread_lock);
cond_init(&thread_parent);
cond_init(&thread_worker);
threads_starting = nthreads;
@ -377,11 +378,11 @@ int bench_epoll_ctl(int argc, const char **argv)
do_threads(worker, cpu);
pthread_mutex_lock(&thread_lock);
mutex_lock(&thread_lock);
while (threads_starting)
pthread_cond_wait(&thread_parent, &thread_lock);
pthread_cond_broadcast(&thread_worker);
pthread_mutex_unlock(&thread_lock);
cond_wait(&thread_parent, &thread_lock);
cond_broadcast(&thread_worker);
mutex_unlock(&thread_lock);
sleep(nsecs);
toggle_done(0, NULL, NULL);
@ -394,9 +395,9 @@ int bench_epoll_ctl(int argc, const char **argv)
}
/* cleanup & report results */
pthread_cond_destroy(&thread_parent);
pthread_cond_destroy(&thread_worker);
pthread_mutex_destroy(&thread_lock);
cond_destroy(&thread_parent);
cond_destroy(&thread_worker);
mutex_destroy(&thread_lock);
for (i = 0; i < nthreads; i++) {
unsigned long t[EPOLL_NR_OPS];

33
tools/perf/bench/epoll-wait.c
View File

@ -79,6 +79,7 @@
#include <perf/cpumap.h>
#include "../util/stat.h"
#include "../util/mutex.h"
#include <subcmd/parse-options.h>
#include "bench.h"
@ -109,10 +110,10 @@ static bool multiq; /* use an epoll instance per thread */
/* amount of fds to monitor, per thread */
static unsigned int nfds = 64;
static pthread_mutex_t thread_lock;
static struct mutex thread_lock;
static unsigned int threads_starting;
static struct stats throughput_stats;
static pthread_cond_t thread_parent, thread_worker;
static struct cond thread_parent, thread_worker;
struct worker {
int tid;
@ -189,12 +190,12 @@ static void *workerfn(void *arg)
int to = nonblocking? 0 : -1;
int efd = multiq ? w->epollfd : epollfd;
pthread_mutex_lock(&thread_lock);
mutex_lock(&thread_lock);
threads_starting--;
if (!threads_starting)
pthread_cond_signal(&thread_parent);
pthread_cond_wait(&thread_worker, &thread_lock);
pthread_mutex_unlock(&thread_lock);
cond_signal(&thread_parent);
cond_wait(&thread_worker, &thread_lock);
mutex_unlock(&thread_lock);
do {
/*
@ -485,9 +486,9 @@ int bench_epoll_wait(int argc, const char **argv)
getpid(), nthreads, oneshot ? " (EPOLLONESHOT semantics)": "", nfds, nsecs);
init_stats(&throughput_stats);
pthread_mutex_init(&thread_lock, NULL);
pthread_cond_init(&thread_parent, NULL);
pthread_cond_init(&thread_worker, NULL);
mutex_init(&thread_lock);
cond_init(&thread_parent);
cond_init(&thread_worker);
threads_starting = nthreads;
@ -495,11 +496,11 @@ int bench_epoll_wait(int argc, const char **argv)
do_threads(worker, cpu);
pthread_mutex_lock(&thread_lock);
mutex_lock(&thread_lock);
while (threads_starting)
pthread_cond_wait(&thread_parent, &thread_lock);
pthread_cond_broadcast(&thread_worker);
pthread_mutex_unlock(&thread_lock);
cond_wait(&thread_parent, &thread_lock);
cond_broadcast(&thread_worker);
mutex_unlock(&thread_lock);
/*
* At this point the workers should be blocked waiting for read events
@ -522,9 +523,9 @@ int bench_epoll_wait(int argc, const char **argv)
err(EXIT_FAILURE, "pthread_join");
/* cleanup & report results */
pthread_cond_destroy(&thread_parent);
pthread_cond_destroy(&thread_worker);
pthread_mutex_destroy(&thread_lock);
cond_destroy(&thread_parent);
cond_destroy(&thread_worker);
mutex_destroy(&thread_lock);
/* sort the array back before reporting */
if (randomize)

33
tools/perf/bench/futex-hash.c
View File

@ -23,6 +23,7 @@
#include <sys/mman.h>
#include <perf/cpumap.h>
#include "../util/mutex.h"
#include "../util/stat.h"
#include <subcmd/parse-options.h>
#include "bench.h"
@ -34,10 +35,10 @@ static bool done = false;
static int futex_flag = 0;
struct timeval bench__start, bench__end, bench__runtime;
static pthread_mutex_t thread_lock;
static struct mutex thread_lock;
static unsigned int threads_starting;
static struct stats throughput_stats;
static pthread_cond_t thread_parent, thread_worker;
static struct cond thread_parent, thread_worker;
struct worker {
int tid;
@ -73,12 +74,12 @@ static void *workerfn(void *arg)
unsigned int i;
unsigned long ops = w->ops; /* avoid cacheline bouncing */
pthread_mutex_lock(&thread_lock);
mutex_lock(&thread_lock);
threads_starting--;
if (!threads_starting)
pthread_cond_signal(&thread_parent);
pthread_cond_wait(&thread_worker, &thread_lock);
pthread_mutex_unlock(&thread_lock);
cond_signal(&thread_parent);
cond_wait(&thread_worker, &thread_lock);
mutex_unlock(&thread_lock);
do {
for (i = 0; i < params.nfutexes; i++, ops++) {
@ -165,9 +166,9 @@ int bench_futex_hash(int argc, const char **argv)
getpid(), params.nthreads, params.nfutexes, params.fshared ? "shared":"private", params.runtime);
init_stats(&throughput_stats);
pthread_mutex_init(&thread_lock, NULL);
pthread_cond_init(&thread_parent, NULL);
pthread_cond_init(&thread_worker, NULL);
mutex_init(&thread_lock);
cond_init(&thread_parent);
cond_init(&thread_worker);
threads_starting = params.nthreads;
pthread_attr_init(&thread_attr);
@ -203,11 +204,11 @@ int bench_futex_hash(int argc, const char **argv)
CPU_FREE(cpuset);
pthread_attr_destroy(&thread_attr);
pthread_mutex_lock(&thread_lock);
mutex_lock(&thread_lock);
while (threads_starting)
pthread_cond_wait(&thread_parent, &thread_lock);
pthread_cond_broadcast(&thread_worker);
pthread_mutex_unlock(&thread_lock);
cond_wait(&thread_parent, &thread_lock);
cond_broadcast(&thread_worker);
mutex_unlock(&thread_lock);
sleep(params.runtime);
toggle_done(0, NULL, NULL);
@ -219,9 +220,9 @@ int bench_futex_hash(int argc, const char **argv)
}
/* cleanup & report results */
pthread_cond_destroy(&thread_parent);
pthread_cond_destroy(&thread_worker);
pthread_mutex_destroy(&thread_lock);
cond_destroy(&thread_parent);
cond_destroy(&thread_worker);
mutex_destroy(&thread_lock);
for (i = 0; i < params.nthreads; i++) {
unsigned long t = bench__runtime.tv_sec > 0 ?

33
tools/perf/bench/futex-lock-pi.c
View File

@ -8,6 +8,7 @@
#include <pthread.h>
#include <signal.h>
#include "../util/mutex.h"
#include "../util/stat.h"
#include <subcmd/parse-options.h>
#include <linux/compiler.h>
@ -34,10 +35,10 @@ static u_int32_t global_futex = 0;
static struct worker *worker;
static bool done = false;
static int futex_flag = 0;
static pthread_mutex_t thread_lock;
static struct mutex thread_lock;
static unsigned int threads_starting;
static struct stats throughput_stats;
static pthread_cond_t thread_parent, thread_worker;
static struct cond thread_parent, thread_worker;
static struct bench_futex_parameters params = {
.runtime = 10,
@ -83,12 +84,12 @@ static void *workerfn(void *arg)
struct worker *w = (struct worker *) arg;
unsigned long ops = w->ops;
pthread_mutex_lock(&thread_lock);
mutex_lock(&thread_lock);
threads_starting--;
if (!threads_starting)
pthread_cond_signal(&thread_parent);
pthread_cond_wait(&thread_worker, &thread_lock);
pthread_mutex_unlock(&thread_lock);
cond_signal(&thread_parent);
cond_wait(&thread_worker, &thread_lock);
mutex_unlock(&thread_lock);
do {
int ret;
@ -197,9 +198,9 @@ int bench_futex_lock_pi(int argc, const char **argv)
getpid(), params.nthreads, params.runtime);
init_stats(&throughput_stats);
pthread_mutex_init(&thread_lock, NULL);
pthread_cond_init(&thread_parent, NULL);
pthread_cond_init(&thread_worker, NULL);
mutex_init(&thread_lock);
cond_init(&thread_parent);
cond_init(&thread_worker);
threads_starting = params.nthreads;
pthread_attr_init(&thread_attr);
@ -208,11 +209,11 @@ int bench_futex_lock_pi(int argc, const char **argv)
create_threads(worker, thread_attr, cpu);
pthread_attr_destroy(&thread_attr);
pthread_mutex_lock(&thread_lock);
mutex_lock(&thread_lock);
while (threads_starting)
pthread_cond_wait(&thread_parent, &thread_lock);
pthread_cond_broadcast(&thread_worker);
pthread_mutex_unlock(&thread_lock);
cond_wait(&thread_parent, &thread_lock);
cond_broadcast(&thread_worker);
mutex_unlock(&thread_lock);
sleep(params.runtime);
toggle_done(0, NULL, NULL);
@ -224,9 +225,9 @@ int bench_futex_lock_pi(int argc, const char **argv)
}
/* cleanup & report results */
pthread_cond_destroy(&thread_parent);
pthread_cond_destroy(&thread_worker);
pthread_mutex_destroy(&thread_lock);
cond_destroy(&thread_parent);
cond_destroy(&thread_worker);
mutex_destroy(&thread_lock);
for (i = 0; i < params.nthreads; i++) {
unsigned long t = bench__runtime.tv_sec > 0 ?

33
tools/perf/bench/futex-requeue.c
View File

@ -15,6 +15,7 @@
#include <pthread.h>
#include <signal.h>
#include "../util/mutex.h"
#include "../util/stat.h"
#include <subcmd/parse-options.h>
#include <linux/compiler.h>
@ -34,8 +35,8 @@ static u_int32_t futex1 = 0, futex2 = 0;
static pthread_t *worker;
static bool done = false;
static pthread_mutex_t thread_lock;
static pthread_cond_t thread_parent, thread_worker;
static struct mutex thread_lock;
static struct cond thread_parent, thread_worker;
static struct stats requeuetime_stats, requeued_stats;
static unsigned int threads_starting;
static int futex_flag = 0;
@ -82,12 +83,12 @@ static void *workerfn(void *arg __maybe_unused)
{
int ret;
pthread_mutex_lock(&thread_lock);
mutex_lock(&thread_lock);
threads_starting--;
if (!threads_starting)
pthread_cond_signal(&thread_parent);
pthread_cond_wait(&thread_worker, &thread_lock);
pthread_mutex_unlock(&thread_lock);
cond_signal(&thread_parent);
cond_wait(&thread_worker, &thread_lock);
mutex_unlock(&thread_lock);
while (1) {
if (!params.pi) {
@ -209,9 +210,9 @@ int bench_futex_requeue(int argc, const char **argv)
init_stats(&requeued_stats);
init_stats(&requeuetime_stats);
pthread_attr_init(&thread_attr);
pthread_mutex_init(&thread_lock, NULL);
pthread_cond_init(&thread_parent, NULL);
pthread_cond_init(&thread_worker, NULL);
mutex_init(&thread_lock);
cond_init(&thread_parent);
cond_init(&thread_worker);
for (j = 0; j < bench_repeat && !done; j++) {
unsigned int nrequeued = 0, wakeups = 0;
@ -221,11 +222,11 @@ int bench_futex_requeue(int argc, const char **argv)
block_threads(worker, thread_attr, cpu);
/* make sure all threads are already blocked */
pthread_mutex_lock(&thread_lock);
mutex_lock(&thread_lock);
while (threads_starting)
pthread_cond_wait(&thread_parent, &thread_lock);
pthread_cond_broadcast(&thread_worker);
pthread_mutex_unlock(&thread_lock);
cond_wait(&thread_parent, &thread_lock);
cond_broadcast(&thread_worker);
mutex_unlock(&thread_lock);
usleep(100000);
@ -297,9 +298,9 @@ int bench_futex_requeue(int argc, const char **argv)
}
/* cleanup & report results */
pthread_cond_destroy(&thread_parent);
pthread_cond_destroy(&thread_worker);
pthread_mutex_destroy(&thread_lock);
cond_destroy(&thread_parent);
cond_destroy(&thread_worker);
mutex_destroy(&thread_lock);
pthread_attr_destroy(&thread_attr);
print_summary();

33
tools/perf/bench/futex-wake-parallel.c
View File

@ -10,6 +10,7 @@
#include "bench.h"
#include <linux/compiler.h>
#include "../util/debug.h"
#include "../util/mutex.h"
#ifndef HAVE_PTHREAD_BARRIER
int bench_futex_wake_parallel(int argc __maybe_unused, const char **argv __maybe_unused)
@ -49,8 +50,8 @@ static u_int32_t futex = 0;
static pthread_t *blocked_worker;
static bool done = false;
static pthread_mutex_t thread_lock;
static pthread_cond_t thread_parent, thread_worker;
static struct mutex thread_lock;
static struct cond thread_parent, thread_worker;
static pthread_barrier_t barrier;
static struct stats waketime_stats, wakeup_stats;
static unsigned int threads_starting;
@ -125,12 +126,12 @@ static void wakeup_threads(struct thread_data *td, pthread_attr_t thread_attr)
static void *blocked_workerfn(void *arg __maybe_unused)
{
pthread_mutex_lock(&thread_lock);
mutex_lock(&thread_lock);
threads_starting--;
if (!threads_starting)
pthread_cond_signal(&thread_parent);
pthread_cond_wait(&thread_worker, &thread_lock);
pthread_mutex_unlock(&thread_lock);
cond_signal(&thread_parent);
cond_wait(&thread_worker, &thread_lock);
mutex_unlock(&thread_lock);
while (1) { /* handle spurious wakeups */
if (futex_wait(&futex, 0, NULL, futex_flag) != EINTR)
@ -294,9 +295,9 @@ int bench_futex_wake_parallel(int argc, const char **argv)
init_stats(&waketime_stats);
pthread_attr_init(&thread_attr);
pthread_mutex_init(&thread_lock, NULL);
pthread_cond_init(&thread_parent, NULL);
pthread_cond_init(&thread_worker, NULL);
mutex_init(&thread_lock);
cond_init(&thread_parent);
cond_init(&thread_worker);
for (j = 0; j < bench_repeat && !done; j++) {
waking_worker = calloc(params.nwakes, sizeof(*waking_worker));
@ -307,11 +308,11 @@ int bench_futex_wake_parallel(int argc, const char **argv)
block_threads(blocked_worker, thread_attr, cpu);
/* make sure all threads are already blocked */
pthread_mutex_lock(&thread_lock);
mutex_lock(&thread_lock);
while (threads_starting)
pthread_cond_wait(&thread_parent, &thread_lock);
pthread_cond_broadcast(&thread_worker);
pthread_mutex_unlock(&thread_lock);
cond_wait(&thread_parent, &thread_lock);
cond_broadcast(&thread_worker);
mutex_unlock(&thread_lock);
usleep(100000);
@ -332,9 +333,9 @@ int bench_futex_wake_parallel(int argc, const char **argv)
}
/* cleanup & report results */
pthread_cond_destroy(&thread_parent);
pthread_cond_destroy(&thread_worker);
pthread_mutex_destroy(&thread_lock);
cond_destroy(&thread_parent);
cond_destroy(&thread_worker);
mutex_destroy(&thread_lock);
pthread_attr_destroy(&thread_attr);
print_summary();

33
tools/perf/bench/futex-wake.c
View File

@ -14,6 +14,7 @@
#include <pthread.h>
#include <signal.h>
#include "../util/mutex.h"
#include "../util/stat.h"
#include <subcmd/parse-options.h>
#include <linux/compiler.h>
@ -34,8 +35,8 @@ static u_int32_t futex1 = 0;
static pthread_t *worker;
static bool done = false;
static pthread_mutex_t thread_lock;
static pthread_cond_t thread_parent, thread_worker;
static struct mutex thread_lock;
static struct cond thread_parent, thread_worker;
static struct stats waketime_stats, wakeup_stats;
static unsigned int threads_starting;
static int futex_flag = 0;
@ -65,12 +66,12 @@ static const char * const bench_futex_wake_usage[] = {
static void *workerfn(void *arg __maybe_unused)
{
pthread_mutex_lock(&thread_lock);
mutex_lock(&thread_lock);
threads_starting--;
if (!threads_starting)
pthread_cond_signal(&thread_parent);
pthread_cond_wait(&thread_worker, &thread_lock);
pthread_mutex_unlock(&thread_lock);
cond_signal(&thread_parent);
cond_wait(&thread_worker, &thread_lock);
mutex_unlock(&thread_lock);
while (1) {
if (futex_wait(&futex1, 0, NULL, futex_flag) != EINTR)
@ -178,9 +179,9 @@ int bench_futex_wake(int argc, const char **argv)
init_stats(&wakeup_stats);
init_stats(&waketime_stats);
pthread_attr_init(&thread_attr);
pthread_mutex_init(&thread_lock, NULL);
pthread_cond_init(&thread_parent, NULL);
pthread_cond_init(&thread_worker, NULL);
mutex_init(&thread_lock);
cond_init(&thread_parent);
cond_init(&thread_worker);
for (j = 0; j < bench_repeat && !done; j++) {
unsigned int nwoken = 0;
@ -190,11 +191,11 @@ int bench_futex_wake(int argc, const char **argv)
block_threads(worker, thread_attr, cpu);
/* make sure all threads are already blocked */
pthread_mutex_lock(&thread_lock);
mutex_lock(&thread_lock);
while (threads_starting)
pthread_cond_wait(&thread_parent, &thread_lock);
pthread_cond_broadcast(&thread_worker);
pthread_mutex_unlock(&thread_lock);
cond_wait(&thread_parent, &thread_lock);
cond_broadcast(&thread_worker);
mutex_unlock(&thread_lock);
usleep(100000);
@ -224,9 +225,9 @@ int bench_futex_wake(int argc, const char **argv)
}
/* cleanup & report results */
pthread_cond_destroy(&thread_parent);
pthread_cond_destroy(&thread_worker);
pthread_mutex_destroy(&thread_lock);
cond_destroy(&thread_parent);
cond_destroy(&thread_worker);
mutex_destroy(&thread_lock);
pthread_attr_destroy(&thread_attr);
print_summary();

93
tools/perf/bench/numa.c
View File

@ -6,8 +6,6 @@
*/
#include <inttypes.h>
/* For the CLR_() macros */
#include <pthread.h>
#include <subcmd/parse-options.h>
#include "../util/cloexec.h"
@ -35,6 +33,7 @@
#include <linux/zalloc.h>
#include "../util/header.h"
#include "../util/mutex.h"
#include <numa.h>
#include <numaif.h>
@ -67,7 +66,7 @@ struct thread_data {
u64 system_time_ns;
u64 user_time_ns;
double speed_gbs;
pthread_mutex_t *process_lock;
struct mutex *process_lock;
};
/* Parameters set by options: */
@ -137,16 +136,16 @@ struct params {
struct global_info {
u8 *data;
pthread_mutex_t startup_mutex;
pthread_cond_t startup_cond;
struct mutex startup_mutex;
struct cond startup_cond;
int nr_tasks_started;
pthread_mutex_t start_work_mutex;
pthread_cond_t start_work_cond;
struct mutex start_work_mutex;
struct cond start_work_cond;
int nr_tasks_working;
bool start_work;
pthread_mutex_t stop_work_mutex;
struct mutex stop_work_mutex;
u64 bytes_done;
struct thread_data *threads;
@ -524,30 +523,6 @@ static void * setup_private_data(ssize_t bytes)
return alloc_data(bytes, MAP_PRIVATE, 0, g->p.init_cpu0, g->p.thp, g->p.init_random);
}
/*
* Return a process-shared (global) mutex:
*/
static void init_global_mutex(pthread_mutex_t *mutex)
{
pthread_mutexattr_t attr;
pthread_mutexattr_init(&attr);
pthread_mutexattr_setpshared(&attr, PTHREAD_PROCESS_SHARED);
pthread_mutex_init(mutex, &attr);
}
/*
* Return a process-shared (global) condition variable:
*/
static void init_global_cond(pthread_cond_t *cond)
{
pthread_condattr_t attr;
pthread_condattr_init(&attr);
pthread_condattr_setpshared(&attr, PTHREAD_PROCESS_SHARED);
pthread_cond_init(cond, &attr);
}
static int parse_cpu_list(const char *arg)
{
p0.cpu_list_str = strdup(arg);
@ -1220,22 +1195,22 @@ static void *worker_thread(void *__tdata)
}
if (g->p.serialize_startup) {
pthread_mutex_lock(&g->startup_mutex);
mutex_lock(&g->startup_mutex);
g->nr_tasks_started++;
/* The last thread wakes the main process. */
if (g->nr_tasks_started == g->p.nr_tasks)
pthread_cond_signal(&g->startup_cond);
cond_signal(&g->startup_cond);
pthread_mutex_unlock(&g->startup_mutex);
mutex_unlock(&g->startup_mutex);
/* Here we will wait for the main process to start us all at once: */
pthread_mutex_lock(&g->start_work_mutex);
mutex_lock(&g->start_work_mutex);
g->start_work = false;
g->nr_tasks_working++;
while (!g->start_work)
pthread_cond_wait(&g->start_work_cond, &g->start_work_mutex);
cond_wait(&g->start_work_cond, &g->start_work_mutex);
pthread_mutex_unlock(&g->start_work_mutex);
mutex_unlock(&g->start_work_mutex);
}
gettimeofday(&start0, NULL);
@ -1254,17 +1229,17 @@ static void *worker_thread(void *__tdata)
val += do_work(thread_data, g->p.bytes_thread, 0, 1, l, val);
if (g->p.sleep_usecs) {
pthread_mutex_lock(td->process_lock);
mutex_lock(td->process_lock);
usleep(g->p.sleep_usecs);
pthread_mutex_unlock(td->process_lock);
mutex_unlock(td->process_lock);
}
/*
* Amount of work to be done under a process-global lock:
*/
if (g->p.bytes_process_locked) {
pthread_mutex_lock(td->process_lock);
mutex_lock(td->process_lock);
val += do_work(process_data, g->p.bytes_process_locked, thread_nr, g->p.nr_threads, l, val);
pthread_mutex_unlock(td->process_lock);
mutex_unlock(td->process_lock);
}
work_done = g->p.bytes_global + g->p.bytes_process +
@ -1361,9 +1336,9 @@ static void *worker_thread(void *__tdata)
free_data(thread_data, g->p.bytes_thread);
pthread_mutex_lock(&g->stop_work_mutex);
mutex_lock(&g->stop_work_mutex);
g->bytes_done += bytes_done;
pthread_mutex_unlock(&g->stop_work_mutex);
mutex_unlock(&g->stop_work_mutex);
return NULL;
}
@ -1373,7 +1348,7 @@ static void *worker_thread(void *__tdata)
*/
static void worker_process(int process_nr)
{
pthread_mutex_t process_lock;
struct mutex process_lock;
struct thread_data *td;
pthread_t *pthreads;
u8 *process_data;
@ -1381,7 +1356,7 @@ static void worker_process(int process_nr)
int ret;
int t;
pthread_mutex_init(&process_lock, NULL);
mutex_init(&process_lock);
set_taskname("process %d", process_nr);
/*
@ -1540,11 +1515,11 @@ static int init(void)
g->data = setup_shared_data(g->p.bytes_global);
/* Startup serialization: */
init_global_mutex(&g->start_work_mutex);
init_global_cond(&g->start_work_cond);
init_global_mutex(&g->startup_mutex);
init_global_cond(&g->startup_cond);
init_global_mutex(&g->stop_work_mutex);
mutex_init_pshared(&g->start_work_mutex);
cond_init_pshared(&g->start_work_cond);
mutex_init_pshared(&g->startup_mutex);
cond_init_pshared(&g->startup_cond);
mutex_init_pshared(&g->stop_work_mutex);
init_thread_data();
@ -1633,17 +1608,17 @@ static int __bench_numa(const char *name)
* Wait for all the threads to start up. The last thread will
* signal this process.
*/
pthread_mutex_lock(&g->startup_mutex);
mutex_lock(&g->startup_mutex);
while (g->nr_tasks_started != g->p.nr_tasks)
pthread_cond_wait(&g->startup_cond, &g->startup_mutex);
cond_wait(&g->startup_cond, &g->startup_mutex);
pthread_mutex_unlock(&g->startup_mutex);
mutex_unlock(&g->startup_mutex);
/* Wait for all threads to be at the start_work_cond. */
while (!threads_ready) {
pthread_mutex_lock(&g->start_work_mutex);
mutex_lock(&g->start_work_mutex);
threads_ready = (g->nr_tasks_working == g->p.nr_tasks);
pthread_mutex_unlock(&g->start_work_mutex);
mutex_unlock(&g->start_work_mutex);
if (!threads_ready)
usleep(1);
}
@ -1661,10 +1636,10 @@ static int __bench_numa(const char *name)
start = stop;
/* Start all threads running. */
pthread_mutex_lock(&g->start_work_mutex);
mutex_lock(&g->start_work_mutex);
g->start_work = true;
pthread_mutex_unlock(&g->start_work_mutex);
pthread_cond_broadcast(&g->start_work_cond);
mutex_unlock(&g->start_work_mutex);
cond_broadcast(&g->start_work_cond);
} else {
gettimeofday(&start, NULL);
}