*
* 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 <urcu/arch.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
/* 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 */
}
/*
while (!test_go)
{
}
- smp_mb();
+ cmm_smp_mb();
for (;;) {
rcu_read_lock();
rcu_unregister_thread();
+ /* test extra thread registration */
+ rcu_register_thread();
+ rcu_unregister_thread();
+
*count = nr_reads;
printf_verbose("thread_end %s, thread id : %lx, tid %lu\n",
"reader", pthread_self(), (unsigned long)gettid());
while (!test_go)
{
}
- smp_mb();
+ cmm_smp_mb();
for (;;) {
new = test_array_alloc();
new->a = 8;
- old = rcu_publish_content(&test_rcu_pointer, new);
+ old = rcu_xchg_pointer(&test_rcu_pointer, new);
+ if (unlikely(wduration))
+ loop_sleep(wduration);
+ synchronize_rcu();
/* can be done after unlock */
if (old)
old->a = 0;
#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");
}
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;
printf_verbose("thread %-6s, thread id : %lx, tid %lu\n",
"main", pthread_self(), (unsigned long)gettid());
- test_array = malloc(sizeof(*test_array) * ARRAY_SIZE);
+ test_array = calloc(1, sizeof(*test_array) * ARRAY_SIZE);
tid_reader = malloc(sizeof(*tid_reader) * nr_readers);
tid_writer = malloc(sizeof(*tid_writer) * nr_writers);
count_reader = malloc(sizeof(*count_reader) * nr_readers);
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);
test_array_free(test_rcu_pointer);