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-rw-r--r--regressions/ck_swlock/benchmark/Makefile17
-rw-r--r--regressions/ck_swlock/benchmark/latency.c86
-rw-r--r--regressions/ck_swlock/benchmark/throughput.c183
-rw-r--r--regressions/ck_swlock/validate/Makefile17
-rw-r--r--regressions/ck_swlock/validate/validate.c455
5 files changed, 758 insertions, 0 deletions
diff --git a/regressions/ck_swlock/benchmark/Makefile b/regressions/ck_swlock/benchmark/Makefile
new file mode 100644
index 0000000..4ec728c
--- /dev/null
+++ b/regressions/ck_swlock/benchmark/Makefile
@@ -0,0 +1,17 @@
+.PHONY: clean distribution
+
+OBJECTS=latency throughput
+
+all: $(OBJECTS)
+
+latency: latency.c ../../../include/ck_swlock.h
+ $(CC) $(CFLAGS) -o latency latency.c
+
+throughput: throughput.c ../../../include/ck_swlock.h
+ $(CC) $(CFLAGS) -o throughput throughput.c
+
+clean:
+ rm -rf *.dSYM *.exe *~ *.o $(OBJECTS)
+
+include ../../../build/regressions.build
+CFLAGS+=$(PTHREAD_CFLAGS) -D_GNU_SOURCE
diff --git a/regressions/ck_swlock/benchmark/latency.c b/regressions/ck_swlock/benchmark/latency.c
new file mode 100644
index 0000000..73a9482
--- /dev/null
+++ b/regressions/ck_swlock/benchmark/latency.c
@@ -0,0 +1,86 @@
+/*
+ * Copyright 2011-2015 Samy Al Bahra.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <ck_swlock.h>
+#include <inttypes.h>
+#include <stdio.h>
+
+#include "../../common.h"
+
+#define CK_F_PR_RTM
+
+#ifndef STEPS
+#define STEPS 2000000
+#endif
+
+int
+main(void)
+{
+ uint64_t s_b, e_b, i;
+ ck_swlock_t swlock = CK_SWLOCK_INITIALIZER;
+
+ for (i = 0; i < STEPS; i++) {
+ ck_swlock_write_lock(&swlock);
+ ck_swlock_write_unlock(&swlock);
+ }
+
+ s_b = rdtsc();
+ for (i = 0; i < STEPS; i++) {
+ ck_swlock_write_lock(&swlock);
+ ck_swlock_write_unlock(&swlock);
+ }
+ e_b = rdtsc();
+ printf(" WRITE: swlock %15" PRIu64 "\n", (e_b - s_b) / STEPS);
+
+ for (i = 0; i < STEPS; i++) {
+ ck_swlock_read_lock(&swlock);
+ ck_swlock_read_unlock(&swlock);
+ }
+
+ s_b = rdtsc();
+ for (i = 0; i < STEPS; i++) {
+ ck_swlock_read_lock(&swlock);
+ ck_swlock_read_unlock(&swlock);
+ }
+ e_b = rdtsc();
+ printf(" READ: swlock %15" PRIu64 "\n", (e_b - s_b) / STEPS);
+
+ for (i = 0; i < STEPS; i++) {
+ ck_swlock_write_latch(&swlock);
+ ck_swlock_write_unlatch(&swlock);
+ }
+
+ s_b = rdtsc();
+ for (i = 0; i < STEPS; i++) {
+ ck_swlock_write_latch(&swlock);
+ ck_swlock_write_unlatch(&swlock);
+ }
+ e_b = rdtsc();
+ printf(" LATCH: swlock %15" PRIu64 "\n", (e_b - s_b) / STEPS);
+
+ return 0;
+}
+
diff --git a/regressions/ck_swlock/benchmark/throughput.c b/regressions/ck_swlock/benchmark/throughput.c
new file mode 100644
index 0000000..5b05365
--- /dev/null
+++ b/regressions/ck_swlock/benchmark/throughput.c
@@ -0,0 +1,183 @@
+/*
+ * Copyright 2011-2015 Samy Al Bahra.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <ck_swlock.h>
+#include <inttypes.h>
+#include <pthread.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#include "../../common.h"
+
+#ifndef STEPS
+#define STEPS 1000000
+#endif
+
+static int barrier;
+static int threads;
+static unsigned int flag CK_CC_CACHELINE;
+static struct {
+ ck_swlock_t lock;
+} rw CK_CC_CACHELINE = {
+ .lock = CK_SWLOCK_INITIALIZER
+};
+
+static struct affinity affinity;
+
+static void *
+thread_lock(void *pun)
+{
+ uint64_t s_b, e_b, a, i;
+ uint64_t *value = pun;
+
+ if (aff_iterate(&affinity) != 0) {
+ perror("ERROR: Could not affine thread");
+ exit(EXIT_FAILURE);
+ }
+
+ ck_pr_inc_int(&barrier);
+ while (ck_pr_load_int(&barrier) != threads)
+ ck_pr_stall();
+
+ for (i = 1, a = 0;; i++) {
+ s_b = rdtsc();
+ ck_swlock_read_lock(&rw.lock);
+ ck_swlock_read_unlock(&rw.lock);
+ ck_swlock_read_lock(&rw.lock);
+ ck_swlock_read_unlock(&rw.lock);
+ ck_swlock_read_lock(&rw.lock);
+ ck_swlock_read_unlock(&rw.lock);
+ ck_swlock_read_lock(&rw.lock);
+ ck_swlock_read_unlock(&rw.lock);
+ ck_swlock_read_lock(&rw.lock);
+ ck_swlock_read_unlock(&rw.lock);
+ ck_swlock_read_lock(&rw.lock);
+ ck_swlock_read_unlock(&rw.lock);
+ ck_swlock_read_lock(&rw.lock);
+ ck_swlock_read_unlock(&rw.lock);
+ ck_swlock_read_lock(&rw.lock);
+ ck_swlock_read_unlock(&rw.lock);
+ ck_swlock_read_lock(&rw.lock);
+ ck_swlock_read_unlock(&rw.lock);
+ ck_swlock_read_lock(&rw.lock);
+ ck_swlock_read_unlock(&rw.lock);
+ ck_swlock_read_lock(&rw.lock);
+ ck_swlock_read_unlock(&rw.lock);
+ ck_swlock_read_lock(&rw.lock);
+ ck_swlock_read_unlock(&rw.lock);
+ ck_swlock_read_lock(&rw.lock);
+ ck_swlock_read_unlock(&rw.lock);
+ ck_swlock_read_lock(&rw.lock);
+ ck_swlock_read_unlock(&rw.lock);
+ ck_swlock_read_lock(&rw.lock);
+ ck_swlock_read_unlock(&rw.lock);
+ ck_swlock_read_lock(&rw.lock);
+ ck_swlock_read_unlock(&rw.lock);
+ e_b = rdtsc();
+
+ a += (e_b - s_b) >> 4;
+
+ if (ck_pr_load_uint(&flag) == 1)
+ break;
+ }
+
+ ck_pr_inc_int(&barrier);
+ while (ck_pr_load_int(&barrier) != threads * 2)
+ ck_pr_stall();
+
+ *value = (a / i);
+ return NULL;
+}
+
+static void
+swlock_test(pthread_t *p, int d, uint64_t *latency, void *(*f)(void *), const char *label)
+{
+ int t;
+
+ ck_pr_store_int(&barrier, 0);
+ ck_pr_store_uint(&flag, 0);
+
+ affinity.delta = d;
+ affinity.request = 0;
+
+ fprintf(stderr, "Creating threads (%s)...", label);
+ for (t = 0; t < threads; t++) {
+ if (pthread_create(&p[t], NULL, f, latency + t) != 0) {
+ ck_error("ERROR: Could not create thread %d\n", t);
+ }
+ }
+ fprintf(stderr, "done\n");
+
+ common_sleep(10);
+ ck_pr_store_uint(&flag, 1);
+
+ fprintf(stderr, "Waiting for threads to finish acquisition regression...");
+ for (t = 0; t < threads; t++)
+ pthread_join(p[t], NULL);
+ fprintf(stderr, "done\n\n");
+
+ for (t = 1; t <= threads; t++)
+ printf("%10u %20" PRIu64 "\n", t, latency[t - 1]);
+
+ fprintf(stderr, "\n");
+ return;
+}
+
+
+int
+main(int argc, char *argv[])
+{
+ int d;
+ pthread_t *p;
+ uint64_t *latency;
+
+ if (argc != 3) {
+ ck_error("Usage: throughput <delta> <threads>\n");
+ }
+
+ threads = atoi(argv[2]);
+ if (threads <= 0) {
+ ck_error("ERROR: Threads must be a value > 0.\n");
+ }
+
+ p = malloc(sizeof(pthread_t) * threads);
+ if (p == NULL) {
+ ck_error("ERROR: Failed to initialize thread.\n");
+ }
+
+ latency = malloc(sizeof(uint64_t) * threads);
+ if (latency == NULL) {
+ ck_error("ERROR: Failed to create latency buffer.\n");
+ }
+
+ d = atoi(argv[1]);
+ swlock_test(p, d, latency, thread_lock, "swlock");
+
+ return 0;
+}
+
diff --git a/regressions/ck_swlock/validate/Makefile b/regressions/ck_swlock/validate/Makefile
new file mode 100644
index 0000000..54d62f2
--- /dev/null
+++ b/regressions/ck_swlock/validate/Makefile
@@ -0,0 +1,17 @@
+.PHONY: check clean distribution
+
+OBJECTS=validate
+
+all: $(OBJECTS)
+
+validate: validate.c ../../../include/ck_swlock.h
+ $(CC) $(CFLAGS) -o validate validate.c
+
+check: all
+ ./validate $(CORES) 1
+
+clean:
+ rm -rf *.dSYM *.exe *~ *.o $(OBJECTS)
+
+include ../../../build/regressions.build
+CFLAGS+=$(PTHREAD_CFLAGS) -D_GNU_SOURCE
diff --git a/regressions/ck_swlock/validate/validate.c b/regressions/ck_swlock/validate/validate.c
new file mode 100644
index 0000000..11366ce
--- /dev/null
+++ b/regressions/ck_swlock/validate/validate.c
@@ -0,0 +1,455 @@
+/*
+ * Copyright 2014 Jaidev Sridhar.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <errno.h>
+#include <inttypes.h>
+#include <pthread.h>
+#include <math.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <strings.h>
+#include <unistd.h>
+#include <sys/time.h>
+
+#include <ck_pr.h>
+#include <ck_swlock.h>
+
+#include "../../common.h"
+
+#ifndef ITERATE
+#define ITERATE 1000000
+#endif
+
+static struct affinity a;
+static unsigned int locked;
+static int nthr;
+static ck_swlock_t lock = CK_SWLOCK_INITIALIZER;
+static ck_swlock_t copy;
+#ifdef CK_F_PR_RTM
+static void *
+thread_rtm_adaptive(void *arg)
+{
+ unsigned int i = ITERATE;
+ unsigned int l;
+ int tid = ck_pr_load_int(arg);
+
+ struct ck_elide_config config = CK_ELIDE_CONFIG_DEFAULT_INITIALIZER;
+ struct ck_elide_stat st = CK_ELIDE_STAT_INITIALIZER;
+
+ if (aff_iterate(&a)) {
+ perror("ERROR: Could not affine thread");
+ exit(EXIT_FAILURE);
+ }
+
+ while (i--) {
+ if (tid == 0) {
+ CK_ELIDE_LOCK_ADAPTIVE(ck_swlock_write, &st, &config, &lock);
+ {
+ l = ck_pr_load_uint(&locked);
+ if (l != 0) {
+ ck_error("ERROR [WR:%d]: %u != 0\n", __LINE__, l);
+ }
+
+ ck_pr_inc_uint(&locked);
+ ck_pr_inc_uint(&locked);
+ ck_pr_inc_uint(&locked);
+ ck_pr_inc_uint(&locked);
+ ck_pr_inc_uint(&locked);
+ ck_pr_inc_uint(&locked);
+ ck_pr_inc_uint(&locked);
+ ck_pr_inc_uint(&locked);
+
+ l = ck_pr_load_uint(&locked);
+ if (l != 8) {
+ ck_error("ERROR [WR:%d]: %u != 2\n", __LINE__, l);
+ }
+
+ ck_pr_dec_uint(&locked);
+ ck_pr_dec_uint(&locked);
+ ck_pr_dec_uint(&locked);
+ ck_pr_dec_uint(&locked);
+ ck_pr_dec_uint(&locked);
+ ck_pr_dec_uint(&locked);
+ ck_pr_dec_uint(&locked);
+ ck_pr_dec_uint(&locked);
+
+ l = ck_pr_load_uint(&locked);
+ if (l != 0) {
+ ck_error("ERROR [WR:%d]: %u != 0\n", __LINE__, l);
+ }
+ }
+ CK_ELIDE_UNLOCK_ADAPTIVE(ck_swlock_write, &st, &lock);
+ }
+
+ CK_ELIDE_LOCK(ck_swlock_read, &lock);
+ {
+ l = ck_pr_load_uint(&locked);
+ if (l != 0) {
+ ck_error("ERROR [RD:%d]: %u != 0\n", __LINE__, l);
+ }
+ }
+ CK_ELIDE_UNLOCK(ck_swlock_read, &lock);
+ }
+
+ return NULL;
+}
+
+static void *
+thread_rtm_mix(void *arg)
+{
+ unsigned int i = ITERATE;
+ unsigned int l;
+ int tid = ck_pr_load_int(arg);
+
+ if (aff_iterate(&a)) {
+ perror("ERROR: Could not affine thread");
+ exit(EXIT_FAILURE);
+ }
+
+ while (i--) {
+ if (tid == 0) {
+ if (i & 1) {
+ CK_ELIDE_LOCK(ck_swlock_write, &lock);
+ } else {
+ ck_swlock_write_lock(&lock);
+ }
+
+ {
+ l = ck_pr_load_uint(&locked);
+ if (l != 0) {
+ ck_error("ERROR [WR:%d]: %u != 0\n", __LINE__, l);
+ }
+
+ ck_pr_inc_uint(&locked);
+ ck_pr_inc_uint(&locked);
+ ck_pr_inc_uint(&locked);
+ ck_pr_inc_uint(&locked);
+ ck_pr_inc_uint(&locked);
+ ck_pr_inc_uint(&locked);
+ ck_pr_inc_uint(&locked);
+ ck_pr_inc_uint(&locked);
+
+ l = ck_pr_load_uint(&locked);
+ if (l != 8) {
+ ck_error("ERROR [WR:%d]: %u != 2\n", __LINE__, l);
+ }
+
+ ck_pr_dec_uint(&locked);
+ ck_pr_dec_uint(&locked);
+ ck_pr_dec_uint(&locked);
+ ck_pr_dec_uint(&locked);
+ ck_pr_dec_uint(&locked);
+ ck_pr_dec_uint(&locked);
+ ck_pr_dec_uint(&locked);
+ ck_pr_dec_uint(&locked);
+
+ l = ck_pr_load_uint(&locked);
+ if (l != 0) {
+ ck_error("ERROR [WR:%d]: %u != 0\n", __LINE__, l);
+ }
+ }
+
+ if (i & 1) {
+ CK_ELIDE_UNLOCK(ck_swlock_write, &lock);
+ } else {
+ ck_swlock_write_unlock(&lock);
+ }
+ }
+ if (i & 1) {
+ CK_ELIDE_LOCK(ck_swlock_read, &lock);
+ } else {
+ ck_swlock_read_lock(&lock);
+ }
+
+ {
+ l = ck_pr_load_uint(&locked);
+ if (l != 0) {
+ ck_error("ERROR [RD:%d]: %u != 0\n", __LINE__, l);
+ }
+ }
+
+ if (i & 1) {
+ CK_ELIDE_UNLOCK(ck_swlock_read, &lock);
+ } else {
+ ck_swlock_read_unlock(&lock);
+ }
+ }
+
+ return (NULL);
+}
+
+static void *
+thread_rtm(void *arg)
+{
+ unsigned int i = ITERATE;
+ unsigned int l;
+ int tid = ck_pr_load_int(arg);
+
+ if (aff_iterate(&a)) {
+ perror("ERROR: Could not affine thread");
+ exit(EXIT_FAILURE);
+ }
+
+ while (i--) {
+ if (tid == 0) {
+ CK_ELIDE_LOCK(ck_swlock_write, &lock);
+ {
+ l = ck_pr_load_uint(&locked);
+ if (l != 0) {
+ ck_error("ERROR [WR:%d]: %u != 0\n", __LINE__, l);
+ }
+
+ ck_pr_inc_uint(&locked);
+ ck_pr_inc_uint(&locked);
+ ck_pr_inc_uint(&locked);
+ ck_pr_inc_uint(&locked);
+ ck_pr_inc_uint(&locked);
+ ck_pr_inc_uint(&locked);
+ ck_pr_inc_uint(&locked);
+ ck_pr_inc_uint(&locked);
+
+ l = ck_pr_load_uint(&locked);
+ if (l != 8) {
+ ck_error("ERROR [WR:%d]: %u != 2\n", __LINE__, l);
+ }
+
+ ck_pr_dec_uint(&locked);
+ ck_pr_dec_uint(&locked);
+ ck_pr_dec_uint(&locked);
+ ck_pr_dec_uint(&locked);
+ ck_pr_dec_uint(&locked);
+ ck_pr_dec_uint(&locked);
+ ck_pr_dec_uint(&locked);
+ ck_pr_dec_uint(&locked);
+
+ l = ck_pr_load_uint(&locked);
+ if (l != 0) {
+ ck_error("ERROR [WR:%d]: %u != 0\n", __LINE__, l);
+ }
+ }
+ CK_ELIDE_UNLOCK(ck_swlock_write, &lock);
+ }
+
+ CK_ELIDE_LOCK(ck_swlock_read, &lock);
+ {
+ l = ck_pr_load_uint(&locked);
+ if (l != 0) {
+ ck_error("ERROR [RD:%d]: %u != 0\n", __LINE__, l);
+ }
+ }
+ CK_ELIDE_UNLOCK(ck_swlock_read, &lock);
+ }
+
+ return (NULL);
+}
+#endif /* CK_F_PR_RTM */
+
+static void *
+thread_latch(void *arg)
+{
+ unsigned int i = ITERATE;
+ unsigned int l;
+ int tid = ck_pr_load_int(arg);
+
+ if (aff_iterate(&a)) {
+ perror("ERROR: Could not affine thread");
+ exit(EXIT_FAILURE);
+ }
+
+ while (i--) {
+ if (tid == 0) {
+ /* Writer */
+ ck_swlock_write_latch(&lock);
+ {
+ memcpy(&copy, &lock, sizeof(ck_swlock_t));
+ l = ck_pr_load_uint(&locked);
+ if (l != 0) {
+ ck_error("ERROR [WR:%d]: %u != 0\n", __LINE__, l);
+ }
+
+ ck_pr_inc_uint(&locked);
+ ck_pr_inc_uint(&locked);
+ ck_pr_inc_uint(&locked);
+ ck_pr_inc_uint(&locked);
+ ck_pr_inc_uint(&locked);
+ ck_pr_inc_uint(&locked);
+ ck_pr_inc_uint(&locked);
+ ck_pr_inc_uint(&locked);
+
+ l = ck_pr_load_uint(&locked);
+ if (l != 8) {
+ ck_error("ERROR [WR:%d]: %u != 2\n", __LINE__, l);
+ }
+
+ ck_pr_dec_uint(&locked);
+ ck_pr_dec_uint(&locked);
+ ck_pr_dec_uint(&locked);
+ ck_pr_dec_uint(&locked);
+ ck_pr_dec_uint(&locked);
+ ck_pr_dec_uint(&locked);
+ ck_pr_dec_uint(&locked);
+ ck_pr_dec_uint(&locked);
+
+ l = ck_pr_load_uint(&locked);
+ if (l != 0) {
+ ck_error("ERROR [WR:%d]: %u != 0\n", __LINE__, l);
+ }
+ memcpy(&lock, &copy, sizeof(ck_swlock_t));
+ }
+ ck_swlock_write_unlatch(&lock);
+ }
+
+ ck_swlock_read_lock(&lock);
+ {
+ l = ck_pr_load_uint(&locked);
+ if (l != 0) {
+ ck_error("ERROR [RD:%d]: %u != 0\n", __LINE__, l);
+ }
+ }
+ ck_swlock_read_unlock(&lock);
+ }
+
+ return (NULL);
+}
+
+static void *
+thread(void *arg)
+{
+ unsigned int i = ITERATE;
+ unsigned int l;
+ int tid = ck_pr_load_int(arg);
+
+ if (aff_iterate(&a)) {
+ perror("ERROR: Could not affine thread");
+ exit(EXIT_FAILURE);
+ }
+
+ while (i--) {
+ if (tid == 0) {
+ /* Writer */
+ ck_swlock_write_lock(&lock);
+ {
+ l = ck_pr_load_uint(&locked);
+ if (l != 0) {
+ ck_error("ERROR [WR:%d]: %u != 0\n", __LINE__, l);
+ }
+
+ ck_pr_inc_uint(&locked);
+ ck_pr_inc_uint(&locked);
+ ck_pr_inc_uint(&locked);
+ ck_pr_inc_uint(&locked);
+ ck_pr_inc_uint(&locked);
+ ck_pr_inc_uint(&locked);
+ ck_pr_inc_uint(&locked);
+ ck_pr_inc_uint(&locked);
+
+ l = ck_pr_load_uint(&locked);
+ if (l != 8) {
+ ck_error("ERROR [WR:%d]: %u != 2\n", __LINE__, l);
+ }
+
+ ck_pr_dec_uint(&locked);
+ ck_pr_dec_uint(&locked);
+ ck_pr_dec_uint(&locked);
+ ck_pr_dec_uint(&locked);
+ ck_pr_dec_uint(&locked);
+ ck_pr_dec_uint(&locked);
+ ck_pr_dec_uint(&locked);
+ ck_pr_dec_uint(&locked);
+
+ l = ck_pr_load_uint(&locked);
+ if (l != 0) {
+ ck_error("ERROR [WR:%d]: %u != 0\n", __LINE__, l);
+ }
+ }
+ ck_swlock_write_unlock(&lock);
+ }
+
+ ck_swlock_read_lock(&lock);
+ {
+ l = ck_pr_load_uint(&locked);
+ if (l != 0) {
+ ck_error("ERROR [RD:%d]: %u != 0\n", __LINE__, l);
+ }
+ }
+ ck_swlock_read_unlock(&lock);
+ }
+
+ return (NULL);
+}
+
+static void
+swlock_test(pthread_t *threads, void *(*f)(void *), const char *test)
+{
+ int i, tid[nthr];
+
+ fprintf(stderr, "Creating threads (%s)...", test);
+ for (i = 0; i < nthr; i++) {
+ ck_pr_store_int(&tid[i], i);
+ if (pthread_create(&threads[i], NULL, f, &tid[i])) {
+ ck_error("ERROR: Could not create thread %d\n", i);
+ }
+ }
+ fprintf(stderr, ".");
+
+ for (i = 0; i < nthr; i++)
+ pthread_join(threads[i], NULL);
+ fprintf(stderr, "done (passed)\n");
+ return;
+}
+
+int
+main(int argc, char *argv[])
+{
+ pthread_t *threads;
+
+ if (argc != 3) {
+ ck_error("Usage: validate <number of threads> <affinity delta>\n");
+ }
+
+ nthr = atoi(argv[1]);
+ if (nthr <= 0) {
+ ck_error("ERROR: Number of threads must be greater than 0\n");
+ }
+
+ threads = malloc(sizeof(pthread_t) * nthr);
+ if (threads == NULL) {
+ ck_error("ERROR: Could not allocate thread structures\n");
+ }
+
+ a.delta = atoi(argv[2]);
+
+ swlock_test(threads, thread, "regular");
+ swlock_test(threads, thread_latch, "latch");
+#ifdef CK_F_PR_RTM
+ swlock_test(threads, thread_rtm, "rtm");
+ swlock_test(threads, thread_rtm_mix, "rtm-mix");
+ swlock_test(threads, thread_rtm_adaptive, "rtm-adaptive");
+#endif
+ return 0;
+}
+
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-06 21:08:47 +0000