*
* Userspace RCU library - test program
*
- * Copyright February 2009 - Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
+ * Copyright February 2009 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
*/
#define _GNU_SOURCE
+#include "../config.h"
#include <stdio.h>
#include <pthread.h>
#include <stdlib.h>
#include <unistd.h>
#include <stdio.h>
#include <assert.h>
-#include <sys/syscall.h>
#include <sched.h>
+#include <errno.h>
-#include "../arch.h"
+#include <urcu/arch.h>
+#include <urcu/tls-compat.h>
-/* Make this big enough to include the POWER5+ L3 cacheline size of 256B */
-#define CACHE_LINE_SIZE 4096
+#ifdef __linux__
+#include <syscall.h>
+#endif
/* hardcoded number of CPUs */
#define NR_CPUS 16384
#else
#define debug_yield_read()
#endif
-#include "../urcu.h"
+#include <urcu.h>
struct test_array {
int a;
struct per_thread_lock {
pthread_mutex_t lock;
-} __attribute__((aligned(CACHE_LINE_SIZE))); /* cache-line aligned */
+} __attribute__((aligned(CAA_CACHE_LINE_SIZE))); /* cache-line aligned */
static struct per_thread_lock *per_thread_lock;
/* read-side C.S. duration, in loops */
static unsigned long rduration;
+/* write-side C.S. duration, in loops */
+static unsigned long wduration;
+
static inline void loop_sleep(unsigned long l)
{
while(l-- != 0)
- cpu_relax();
+ caa_cpu_relax();
}
static int verbose_mode;
pthread_mutex_t affinity_mutex = PTHREAD_MUTEX_INITIALIZER;
+#ifndef HAVE_CPU_SET_T
+typedef unsigned long cpu_set_t;
+# define CPU_ZERO(cpuset) do { *(cpuset) = 0; } while(0)
+# define CPU_SET(cpu, cpuset) do { *(cpuset) |= (1UL << (cpu)); } while(0)
+#endif
+
static void set_affinity(void)
{
cpu_set_t mask;
if (!use_affinity)
return;
+#if HAVE_SCHED_SETAFFINITY
ret = pthread_mutex_lock(&affinity_mutex);
if (ret) {
perror("Error in pthread mutex lock");
}
CPU_ZERO(&mask);
CPU_SET(cpu, &mask);
+#if SCHED_SETAFFINITY_ARGS == 2
+ sched_setaffinity(0, &mask);
+#else
sched_setaffinity(0, sizeof(mask), &mask);
+#endif
+#endif /* HAVE_SCHED_SETAFFINITY */
}
/*
return !test_stop;
}
-static unsigned long long __thread nr_writes;
-static unsigned long long __thread nr_reads;
+static DEFINE_URCU_TLS(unsigned long long, nr_writes);
+static DEFINE_URCU_TLS(unsigned long long, nr_reads);
static
-unsigned long long __attribute__((aligned(CACHE_LINE_SIZE))) *tot_nr_writes;
+unsigned long long __attribute__((aligned(CAA_CACHE_LINE_SIZE))) *tot_nr_writes;
static
-unsigned long long __attribute__((aligned(CACHE_LINE_SIZE))) *tot_nr_reads;
+unsigned long long __attribute__((aligned(CAA_CACHE_LINE_SIZE))) *tot_nr_reads;
static unsigned int nr_readers;
static unsigned int nr_writers;
for (;;) {
pthread_mutex_lock(&per_thread_lock[tidx].lock);
assert(test_array.a == 8);
- if (unlikely(rduration))
+ if (caa_unlikely(rduration))
loop_sleep(rduration);
pthread_mutex_unlock(&per_thread_lock[tidx].lock);
- nr_reads++;
- if (unlikely(!test_duration_read()))
+ URCU_TLS(nr_reads)++;
+ if (caa_unlikely(!test_duration_read()))
break;
}
- tot_nr_reads[tidx] = nr_reads;
+ tot_nr_reads[tidx] = URCU_TLS(nr_reads);
printf_verbose("thread_end %s, thread id : %lx, tid %lu\n",
"reader", pthread_self(), (unsigned long)gettid());
return ((void*)1);
while (!test_go)
{
}
- smp_mb();
+ cmm_smp_mb();
for (;;) {
for (tidx = 0; tidx < nr_readers; tidx++) {
}
test_array.a = 0;
test_array.a = 8;
+ if (caa_unlikely(wduration))
+ loop_sleep(wduration);
for (tidx = (long)nr_readers - 1; tidx >= 0; tidx--) {
pthread_mutex_unlock(&per_thread_lock[tidx].lock);
}
- nr_writes++;
- if (unlikely(!test_duration_write()))
+ URCU_TLS(nr_writes)++;
+ if (caa_unlikely(!test_duration_write()))
break;
- if (unlikely(wdelay))
+ if (caa_unlikely(wdelay))
loop_sleep(wdelay);
}
printf_verbose("thread_end %s, thread id : %lx, tid %lu\n",
"writer", pthread_self(), (unsigned long)gettid());
- tot_nr_writes[wtidx] = nr_writes;
+ tot_nr_writes[wtidx] = URCU_TLS(nr_writes);
return ((void*)2);
}
#endif
printf(" [-d delay] (writer period (us))");
printf(" [-c duration] (reader C.S. duration (in loops))");
+ printf(" [-e duration] (writer C.S. duration (in loops))");
printf(" [-v] (verbose output)");
printf(" [-a cpu#] [-a cpu#]... (affinity)");
printf("\n");
int err;
pthread_t *tid_reader, *tid_writer;
void *tret;
- unsigned long long *count_reader, *count_writer;
unsigned long long tot_reads = 0, tot_writes = 0;
int i, a;
show_usage(argc, argv);
return -1;
}
- smp_mb();
+ cmm_smp_mb();
err = sscanf(argv[1], "%u", &nr_readers);
if (err != 1) {
}
wdelay = atol(argv[++i]);
break;
+ case 'e':
+ if (argc < i + 2) {
+ show_usage(argc, argv);
+ return -1;
+ }
+ wduration = atol(argv[++i]);
+ break;
case 'v':
verbose_mode = 1;
break;
tid_reader = malloc(sizeof(*tid_reader) * nr_readers);
tid_writer = malloc(sizeof(*tid_writer) * nr_writers);
- count_reader = malloc(sizeof(*count_reader) * nr_readers);
- count_writer = malloc(sizeof(*count_writer) * nr_writers);
tot_nr_reads = malloc(sizeof(*tot_nr_reads) * nr_readers);
tot_nr_writes = malloc(sizeof(*tot_nr_writes) * nr_writers);
per_thread_lock = malloc(sizeof(*per_thread_lock) * nr_readers);
+ for (i = 0; i < nr_readers; i++) {
+ err = pthread_mutex_init(&per_thread_lock[i].lock, NULL);
+ if (err != 0)
+ exit(1);
+ }
next_aff = 0;
exit(1);
}
- smp_mb();
+ cmm_smp_mb();
test_go = 1;
printf_verbose("total number of reads : %llu, writes %llu\n", tot_reads,
tot_writes);
- printf("SUMMARY %-25s testdur %4lu nr_readers %3u rdur %6lu "
+ printf("SUMMARY %-25s testdur %4lu nr_readers %3u rdur %6lu wdur %6lu "
"nr_writers %3u "
"wdelay %6lu nr_reads %12llu nr_writes %12llu nr_ops %12llu\n",
- argv[0], duration, nr_readers, rduration,
+ argv[0], duration, nr_readers, rduration, wduration,
nr_writers, wdelay, tot_reads, tot_writes,
tot_reads + tot_writes);
free(tid_reader);
free(tid_writer);
- free(count_reader);
- free(count_writer);
free(tot_nr_reads);
free(tot_nr_writes);
free(per_thread_lock);
projects / urcu.git / blobdiff