From: Lai Jiangshan Date: Fri, 14 Oct 2011 13:46:30 +0000 (-0500) Subject: rename test_qsbr to test_urcu_qsbr X-Git-Tag: v0.6.6~4 X-Git-Url: https://git.lttng.org./?a=commitdiff_plain;h=f8cbb9da4a7001f598f1c38f85712ab39fe0d938;p=urcu.git rename test_qsbr to test_urcu_qsbr [ edit by Mathieu Desnoyers: update runtests*.sh scripts accordingly ] Signed-off-by: Lai Jiangshan Signed-off-by: Mathieu Desnoyers --- diff --git a/tests/Makefile.am b/tests/Makefile.am index 9f5fbb1..44fac55 100644 --- a/tests/Makefile.am +++ b/tests/Makefile.am @@ -5,12 +5,12 @@ noinst_PROGRAMS = test_urcu test_urcu_dynamic_link test_urcu_timing \ test_urcu_signal test_urcu_signal_dynamic_link test_urcu_signal_timing \ test_rwlock_timing test_rwlock test_perthreadlock_timing \ test_perthreadlock test_urcu_yield test_urcu_signal_yield test_urcu_mb \ - test_qsbr_timing test_qsbr rcutorture_urcu rcutorture_urcu_signal \ - rcutorture_urcu_mb rcutorture_urcu_bp rcutorture_qsbr \ + test_urcu_qsbr_timing test_urcu_qsbr rcutorture_urcu rcutorture_urcu_signal \ + rcutorture_urcu_mb rcutorture_urcu_bp rcutorture_urcu_qsbr \ test_mutex test_looplen test_urcu_gc test_urcu_signal_gc \ test_urcu_lgc \ - test_urcu_mb_gc test_qsbr_gc test_qsbr_lgc test_urcu_signal_lgc \ - test_urcu_mb_lgc test_qsbr_dynamic_link test_urcu_defer \ + test_urcu_mb_gc test_urcu_qsbr_gc test_urcu_qsbr_lgc test_urcu_signal_lgc \ + test_urcu_mb_lgc test_urcu_qsbr_dynamic_link test_urcu_defer \ test_uatomic test_urcu_assign test_urcu_assign_dynamic_link \ test_urcu_bp test_urcu_bp_dynamic_link test_cycles_per_loop \ test_urcu_lfq test_urcu_wfq test_urcu_lfs test_urcu_wfs \ @@ -58,9 +58,9 @@ test_urcu_yield_SOURCES = test_urcu.c $(URCU) test_urcu_yield_CFLAGS = -DDEBUG_YIELD $(AM_CFLAGS) -test_qsbr_SOURCES = test_qsbr.c $(URCU_QSBR) +test_urcu_qsbr_SOURCES = test_urcu_qsbr.c $(URCU_QSBR) -test_qsbr_timing_SOURCES = test_qsbr_timing.c $(URCU_QSBR) +test_urcu_qsbr_timing_SOURCES = test_urcu_qsbr_timing.c $(URCU_QSBR) test_urcu_mb_SOURCES = test_urcu.c $(URCU_MB) @@ -98,9 +98,9 @@ rcutorture_urcu_mb_SOURCES = urcutorture.c rcutorture_urcu_mb_CFLAGS = -DRCU_MB $(AM_CFLAGS) rcutorture_urcu_mb_LDADD = $(URCU_MB_LIB) -rcutorture_qsbr_SOURCES = urcutorture.c -rcutorture_qsbr_CFLAGS = -DTORTURE_QSBR -DRCU_QSBR $(AM_CFLAGS) -rcutorture_qsbr_LDADD = $(URCU_QSBR_LIB) +rcutorture_urcu_qsbr_SOURCES = urcutorture.c +rcutorture_urcu_qsbr_CFLAGS = -DTORTURE_QSBR -DRCU_QSBR $(AM_CFLAGS) +rcutorture_urcu_qsbr_LDADD = $(URCU_QSBR_LIB) rcutorture_urcu_signal_SOURCES = urcutorture.c rcutorture_urcu_signal_CFLAGS = -DRCU_SIGNAL $(AM_CFLAGS) @@ -122,10 +122,10 @@ test_urcu_signal_gc_CFLAGS = -DRCU_SIGNAL $(AM_CFLAGS) test_urcu_mb_gc_SOURCES = test_urcu_gc.c $(URCU_MB) test_urcu_mb_gc_CFLAGS = -DRCU_MB $(AM_CFLAGS) -test_qsbr_gc_SOURCES = test_qsbr_gc.c $(URCU_QSBR) +test_urcu_qsbr_gc_SOURCES = test_urcu_qsbr_gc.c $(URCU_QSBR) -test_qsbr_lgc_SOURCES = test_qsbr_gc.c $(URCU_QSBR) -test_qsbr_lgc_CFLAGS = -DTEST_LOCAL_GC $(AM_CFLAGS) +test_urcu_qsbr_lgc_SOURCES = test_urcu_qsbr_gc.c $(URCU_QSBR) +test_urcu_qsbr_lgc_CFLAGS = -DTEST_LOCAL_GC $(AM_CFLAGS) test_urcu_lgc_SOURCES = test_urcu_gc.c $(URCU) test_urcu_lgc_CFLAGS = -DTEST_LOCAL_GC $(AM_CFLAGS) @@ -136,8 +136,8 @@ test_urcu_signal_lgc_CFLAGS = -DRCU_SIGNAL -DTEST_LOCAL_GC $(AM_CFLAGS) test_urcu_mb_lgc_SOURCES = test_urcu_gc.c $(URCU_MB) test_urcu_mb_lgc_CFLAGS = -DTEST_LOCAL_GC -DRCU_MB $(AM_CFLAGS) -test_qsbr_dynamic_link_SOURCES = test_qsbr.c $(URCU_QSBR) -test_qsbr_dynamic_link_CFLAGS = -DDYNAMIC_LINK_TEST $(AM_CFLAGS) +test_urcu_qsbr_dynamic_link_SOURCES = test_urcu_qsbr.c $(URCU_QSBR) +test_urcu_qsbr_dynamic_link_CFLAGS = -DDYNAMIC_LINK_TEST $(AM_CFLAGS) test_urcu_defer_SOURCES = test_urcu_defer.c $(URCU_DEFER) diff --git a/tests/runtests-batch.sh b/tests/runtests-batch.sh index 67e019b..4340147 100755 --- a/tests/runtests-batch.sh +++ b/tests/runtests-batch.sh @@ -1,6 +1,6 @@ #!/bin/sh -#for a in test_urcu_gc test_urcu_gc_mb test_qsbr_gc; do +#for a in test_urcu_gc test_urcu_gc_mb test_urcu_qsbr_gc; do for a in test_urcu_gc; do echo "./${a} $*" | tee -a runall.detail.log /usr/bin/time --append --output runall.detail.log ./${a} $* diff --git a/tests/runtests.sh b/tests/runtests.sh index 4b5f745..aace60b 100755 --- a/tests/runtests.sh +++ b/tests/runtests.sh @@ -1,8 +1,8 @@ #!/bin/sh -for a in test_urcu_gc test_urcu_signal_gc test_urcu_mb_gc test_qsbr_gc \ - test_urcu_lgc test_urcu_signal_lgc test_urcu_mb_lgc test_qsbr_lgc \ - test_urcu test_urcu_signal test_urcu_mb test_qsbr \ +for a in test_urcu_gc test_urcu_signal_gc test_urcu_mb_gc test_urcu_qsbr_gc \ + test_urcu_lgc test_urcu_signal_lgc test_urcu_mb_lgc test_urcu_qsbr_lgc \ + test_urcu test_urcu_signal test_urcu_mb test_urcu_qsbr \ test_rwlock test_perthreadlock test_mutex; do echo "./${a} $*" | tee -a runall.detail.log /usr/bin/time --append --output runall.detail.log ./${a} $* diff --git a/tests/test_qsbr.c b/tests/test_qsbr.c deleted file mode 100644 index 1c5a696..0000000 --- a/tests/test_qsbr.c +++ /dev/null @@ -1,465 +0,0 @@ -/* - * test_urcu.c - * - * Userspace RCU library - test program - * - * Copyright February 2009 - Mathieu Desnoyers - * - * 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 - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. - */ - -#define _GNU_SOURCE -#include "../config.h" -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include - -#ifdef __linux__ -#include -#endif - -/* hardcoded number of CPUs */ -#define NR_CPUS 16384 - -#if defined(_syscall0) -_syscall0(pid_t, gettid) -#elif defined(__NR_gettid) -static inline pid_t gettid(void) -{ - return syscall(__NR_gettid); -} -#else -#warning "use pid as tid" -static inline pid_t gettid(void) -{ - return getpid(); -} -#endif - -#ifndef DYNAMIC_LINK_TEST -#define _LGPL_SOURCE -#else -#define debug_yield_read() -#endif -#include "urcu-qsbr.h" - -struct test_array { - int a; -}; - -static volatile int test_go, test_stop; - -static unsigned long wdelay; - -static struct test_array *test_rcu_pointer; - -static unsigned long duration; - -/* 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) - caa_cpu_relax(); -} - -static int verbose_mode; - -#define printf_verbose(fmt, args...) \ - do { \ - if (verbose_mode) \ - printf(fmt, args); \ - } while (0) - -static unsigned int cpu_affinities[NR_CPUS]; -static unsigned int next_aff = 0; -static int use_affinity = 0; - -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; - int cpu; - int ret; - - if (!use_affinity) - return; - -#if HAVE_SCHED_SETAFFINITY - ret = pthread_mutex_lock(&affinity_mutex); - if (ret) { - perror("Error in pthread mutex lock"); - exit(-1); - } - cpu = cpu_affinities[next_aff++]; - ret = pthread_mutex_unlock(&affinity_mutex); - if (ret) { - perror("Error in pthread mutex unlock"); - exit(-1); - } - 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 */ -} - -/* - * returns 0 if test should end. - */ -static int test_duration_write(void) -{ - return !test_stop; -} - -static int test_duration_read(void) -{ - return !test_stop; -} - -static unsigned long long __thread nr_writes; -static unsigned long long __thread nr_reads; - -static unsigned int nr_readers; -static unsigned int nr_writers; - -pthread_mutex_t rcu_copy_mutex = PTHREAD_MUTEX_INITIALIZER; - -void rcu_copy_mutex_lock(void) -{ - int ret; - ret = pthread_mutex_lock(&rcu_copy_mutex); - if (ret) { - perror("Error in pthread mutex lock"); - exit(-1); - } -} - -void rcu_copy_mutex_unlock(void) -{ - int ret; - - ret = pthread_mutex_unlock(&rcu_copy_mutex); - if (ret) { - perror("Error in pthread mutex unlock"); - exit(-1); - } -} - -/* - * malloc/free are reusing memory areas too quickly, which does not let us - * test races appropriately. Use a large circular array for allocations. - * ARRAY_SIZE is larger than nr_writers, and we keep the mutex across - * both alloc and free, which insures we never run over our tail. - */ -#define ARRAY_SIZE (1048576 * nr_writers) -#define ARRAY_POISON 0xDEADBEEF -static int array_index; -static struct test_array *test_array; - -static struct test_array *test_array_alloc(void) -{ - struct test_array *ret; - int index; - - index = array_index % ARRAY_SIZE; - assert(test_array[index].a == ARRAY_POISON || - test_array[index].a == 0); - ret = &test_array[index]; - array_index++; - if (array_index == ARRAY_SIZE) - array_index = 0; - return ret; -} - -static void test_array_free(struct test_array *ptr) -{ - if (!ptr) - return; - ptr->a = ARRAY_POISON; -} - -void *thr_reader(void *_count) -{ - unsigned long long *count = _count; - struct test_array *local_ptr; - - printf_verbose("thread_begin %s, thread id : %lx, tid %lu\n", - "reader", pthread_self(), (unsigned long)gettid()); - - set_affinity(); - - rcu_register_thread(); - - while (!test_go) - { - } - cmm_smp_mb(); - - for (;;) { - rcu_read_lock(); - local_ptr = rcu_dereference(test_rcu_pointer); - debug_yield_read(); - if (local_ptr) - assert(local_ptr->a == 8); - if (unlikely(rduration)) - loop_sleep(rduration); - rcu_read_unlock(); - nr_reads++; - /* QS each 1024 reads */ - if (unlikely((nr_reads & ((1 << 10) - 1)) == 0)) - rcu_quiescent_state(); - if (unlikely(!test_duration_read())) - break; - } - - 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()); - return ((void*)1); - -} - -void *thr_writer(void *_count) -{ - unsigned long long *count = _count; - struct test_array *new, *old; - - printf_verbose("thread_begin %s, thread id : %lx, tid %lu\n", - "writer", pthread_self(), (unsigned long)gettid()); - - set_affinity(); - - while (!test_go) - { - } - cmm_smp_mb(); - - for (;;) { - rcu_copy_mutex_lock(); - new = test_array_alloc(); - new->a = 8; - 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; - test_array_free(old); - rcu_copy_mutex_unlock(); - nr_writes++; - if (unlikely(!test_duration_write())) - break; - if (unlikely(wdelay)) - loop_sleep(wdelay); - } - - printf_verbose("thread_end %s, thread id : %lx, tid %lu\n", - "writer", pthread_self(), (unsigned long)gettid()); - *count = nr_writes; - return ((void*)2); -} - -void show_usage(int argc, char **argv) -{ - printf("Usage : %s nr_readers nr_writers duration (s)", argv[0]); -#ifdef DEBUG_YIELD - printf(" [-r] [-w] (yield reader and/or writer)"); -#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 main(int argc, char **argv) -{ - 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; - - if (argc < 4) { - show_usage(argc, argv); - return -1; - } - - err = sscanf(argv[1], "%u", &nr_readers); - if (err != 1) { - show_usage(argc, argv); - return -1; - } - - err = sscanf(argv[2], "%u", &nr_writers); - if (err != 1) { - show_usage(argc, argv); - return -1; - } - - err = sscanf(argv[3], "%lu", &duration); - if (err != 1) { - show_usage(argc, argv); - return -1; - } - - for (i = 4; i < argc; i++) { - if (argv[i][0] != '-') - continue; - switch (argv[i][1]) { -#ifdef DEBUG_YIELD - case 'r': - yield_active |= YIELD_READ; - break; - case 'w': - yield_active |= YIELD_WRITE; - break; -#endif - case 'a': - if (argc < i + 2) { - show_usage(argc, argv); - return -1; - } - a = atoi(argv[++i]); - cpu_affinities[next_aff++] = a; - use_affinity = 1; - printf_verbose("Adding CPU %d affinity\n", a); - break; - case 'c': - if (argc < i + 2) { - show_usage(argc, argv); - return -1; - } - rduration = atol(argv[++i]); - break; - case 'd': - if (argc < i + 2) { - show_usage(argc, argv); - return -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; - } - } - - printf_verbose("running test for %lu seconds, %u readers, %u writers.\n", - duration, nr_readers, nr_writers); - printf_verbose("Writer delay : %lu loops.\n", wdelay); - printf_verbose("Reader duration : %lu loops.\n", rduration); - printf_verbose("thread %-6s, thread id : %lx, tid %lu\n", - "main", pthread_self(), (unsigned long)gettid()); - - 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); - count_writer = malloc(sizeof(*count_writer) * nr_writers); - - next_aff = 0; - - for (i = 0; i < nr_readers; i++) { - err = pthread_create(&tid_reader[i], NULL, thr_reader, - &count_reader[i]); - if (err != 0) - exit(1); - } - for (i = 0; i < nr_writers; i++) { - err = pthread_create(&tid_writer[i], NULL, thr_writer, - &count_writer[i]); - if (err != 0) - exit(1); - } - - cmm_smp_mb(); - - test_go = 1; - - sleep(duration); - - test_stop = 1; - - for (i = 0; i < nr_readers; i++) { - err = pthread_join(tid_reader[i], &tret); - if (err != 0) - exit(1); - tot_reads += count_reader[i]; - } - for (i = 0; i < nr_writers; i++) { - err = pthread_join(tid_writer[i], &tret); - if (err != 0) - exit(1); - tot_writes += count_writer[i]; - } - - printf_verbose("total number of reads : %llu, writes %llu\n", tot_reads, - tot_writes); - 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, wduration, - nr_writers, wdelay, tot_reads, tot_writes, - tot_reads + tot_writes); - test_array_free(test_rcu_pointer); - free(test_array); - free(tid_reader); - free(tid_writer); - free(count_reader); - free(count_writer); - return 0; -} diff --git a/tests/test_qsbr_gc.c b/tests/test_qsbr_gc.c deleted file mode 100644 index 0c1c124..0000000 --- a/tests/test_qsbr_gc.c +++ /dev/null @@ -1,490 +0,0 @@ -/* - * test_urcu_gc.c - * - * Userspace RCU library - test program (with baatch reclamation) - * - * Copyright February 2009 - Mathieu Desnoyers - * - * 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 - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. - */ - -#define _GNU_SOURCE -#include "../config.h" -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include - -#ifdef __linux__ -#include -#endif - -/* hardcoded number of CPUs */ -#define NR_CPUS 16384 - -#if defined(_syscall0) -_syscall0(pid_t, gettid) -#elif defined(__NR_gettid) -static inline pid_t gettid(void) -{ - return syscall(__NR_gettid); -} -#else -#warning "use pid as tid" -static inline pid_t gettid(void) -{ - return getpid(); -} -#endif - -#define _LGPL_SOURCE -#include - -struct test_array { - int a; -}; - -static volatile int test_go, test_stop; - -static unsigned long wdelay; - -static struct test_array *test_rcu_pointer; - -static unsigned long duration; - -/* read-side C.S. duration, in loops */ -static unsigned long rduration; -static unsigned int reclaim_batch = 1; - -struct reclaim_queue { - void **queue; /* Beginning of queue */ - void **head; /* Insert position */ -}; - -static struct reclaim_queue *pending_reclaims; - - -/* write-side C.S. duration, in loops */ -static unsigned long wduration; - -static inline void loop_sleep(unsigned long l) -{ - while(l-- != 0) - caa_cpu_relax(); -} - -static int verbose_mode; - -#define printf_verbose(fmt, args...) \ - do { \ - if (verbose_mode) \ - printf(fmt, args); \ - } while (0) - -static unsigned int cpu_affinities[NR_CPUS]; -static unsigned int next_aff = 0; -static int use_affinity = 0; - -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; - int cpu; - int ret; - - if (!use_affinity) - return; - -#if HAVE_SCHED_SETAFFINITY - ret = pthread_mutex_lock(&affinity_mutex); - if (ret) { - perror("Error in pthread mutex lock"); - exit(-1); - } - cpu = cpu_affinities[next_aff++]; - ret = pthread_mutex_unlock(&affinity_mutex); - if (ret) { - perror("Error in pthread mutex unlock"); - exit(-1); - } - - 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 */ -} - -/* - * returns 0 if test should end. - */ -static int test_duration_write(void) -{ - return !test_stop; -} - -static int test_duration_read(void) -{ - return !test_stop; -} - -static unsigned long long __thread nr_writes; -static unsigned long long __thread nr_reads; - -static unsigned int nr_readers; -static unsigned int nr_writers; - -pthread_mutex_t rcu_copy_mutex = PTHREAD_MUTEX_INITIALIZER; -static -unsigned long long __attribute__((aligned(CAA_CACHE_LINE_SIZE))) *tot_nr_writes; - - -void rcu_copy_mutex_lock(void) -{ - int ret; - ret = pthread_mutex_lock(&rcu_copy_mutex); - if (ret) { - perror("Error in pthread mutex lock"); - exit(-1); - } -} - -void rcu_copy_mutex_unlock(void) -{ - int ret; - - ret = pthread_mutex_unlock(&rcu_copy_mutex); - if (ret) { - perror("Error in pthread mutex unlock"); - exit(-1); - } -} - -void *thr_reader(void *_count) -{ - unsigned long long *count = _count; - struct test_array *local_ptr; - - printf_verbose("thread_begin %s, thread id : %lx, tid %lu\n", - "reader", pthread_self(), (unsigned long)gettid()); - - set_affinity(); - - rcu_register_thread(); - - while (!test_go) - { - } - cmm_smp_mb(); - - for (;;) { - _rcu_read_lock(); - local_ptr = _rcu_dereference(test_rcu_pointer); - debug_yield_read(); - if (local_ptr) - assert(local_ptr->a == 8); - if (unlikely(rduration)) - loop_sleep(rduration); - _rcu_read_unlock(); - nr_reads++; - /* QS each 1024 reads */ - if (unlikely((nr_reads & ((1 << 10) - 1)) == 0)) - _rcu_quiescent_state(); - if (unlikely(!test_duration_read())) - break; - } - - rcu_unregister_thread(); - - *count = nr_reads; - printf_verbose("thread_end %s, thread id : %lx, tid %lu\n", - "reader", pthread_self(), (unsigned long)gettid()); - return ((void*)1); - -} - -static void rcu_gc_clear_queue(unsigned long wtidx) -{ - void **p; - - /* Wait for Q.S and empty queue */ - synchronize_rcu(); - - for (p = pending_reclaims[wtidx].queue; - p < pending_reclaims[wtidx].head; p++) { - /* poison */ - if (*p) - ((struct test_array *)*p)->a = 0; - free(*p); - } - pending_reclaims[wtidx].head = pending_reclaims[wtidx].queue; -} - -/* Using per-thread queue */ -static void rcu_gc_reclaim(unsigned long wtidx, void *old) -{ - /* Queue pointer */ - *pending_reclaims[wtidx].head = old; - pending_reclaims[wtidx].head++; - - if (likely(pending_reclaims[wtidx].head - pending_reclaims[wtidx].queue - < reclaim_batch)) - return; - - rcu_gc_clear_queue(wtidx); -} - -void *thr_writer(void *data) -{ - unsigned long wtidx = (unsigned long)data; -#ifdef TEST_LOCAL_GC - struct test_array *old = NULL; -#else - struct test_array *new, *old; -#endif - - printf_verbose("thread_begin %s, thread id : %lx, tid %lu\n", - "writer", pthread_self(), (unsigned long)gettid()); - - set_affinity(); - - while (!test_go) - { - } - cmm_smp_mb(); - - for (;;) { -#ifndef TEST_LOCAL_GC - new = malloc(sizeof(*new)); - new->a = 8; - old = _rcu_xchg_pointer(&test_rcu_pointer, new); -#endif - if (unlikely(wduration)) - loop_sleep(wduration); - rcu_gc_reclaim(wtidx, old); - nr_writes++; - if (unlikely(!test_duration_write())) - break; - if (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; - return ((void*)2); -} - -void show_usage(int argc, char **argv) -{ - printf("Usage : %s nr_readers nr_writers duration (s)", argv[0]); -#ifdef DEBUG_YIELD - printf(" [-r] [-w] (yield reader and/or writer)"); -#endif - printf(" [-b batch] (batch reclaim)"); - 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 main(int argc, char **argv) -{ - int err; - pthread_t *tid_reader, *tid_writer; - void *tret; - unsigned long long *count_reader; - unsigned long long tot_reads = 0, tot_writes = 0; - int i, a; - - if (argc < 4) { - show_usage(argc, argv); - return -1; - } - - err = sscanf(argv[1], "%u", &nr_readers); - if (err != 1) { - show_usage(argc, argv); - return -1; - } - - err = sscanf(argv[2], "%u", &nr_writers); - if (err != 1) { - show_usage(argc, argv); - return -1; - } - - err = sscanf(argv[3], "%lu", &duration); - if (err != 1) { - show_usage(argc, argv); - return -1; - } - - for (i = 4; i < argc; i++) { - if (argv[i][0] != '-') - continue; - switch (argv[i][1]) { -#ifdef DEBUG_YIELD - case 'r': - yield_active |= YIELD_READ; - break; - case 'w': - yield_active |= YIELD_WRITE; - break; -#endif - case 'a': - if (argc < i + 2) { - show_usage(argc, argv); - return -1; - } - a = atoi(argv[++i]); - cpu_affinities[next_aff++] = a; - use_affinity = 1; - printf_verbose("Adding CPU %d affinity\n", a); - break; - case 'b': - if (argc < i + 2) { - show_usage(argc, argv); - return -1; - } - reclaim_batch = atol(argv[++i]); - break; - case 'c': - if (argc < i + 2) { - show_usage(argc, argv); - return -1; - } - rduration = atol(argv[++i]); - break; - case 'd': - if (argc < i + 2) { - show_usage(argc, argv); - return -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; - } - } - - printf_verbose("running test for %lu seconds, %u readers, %u writers.\n", - duration, nr_readers, nr_writers); - printf_verbose("Writer delay : %lu loops.\n", wdelay); - printf_verbose("Reader duration : %lu loops.\n", rduration); - printf_verbose("thread %-6s, thread id : %lx, tid %lu\n", - "main", pthread_self(), (unsigned long)gettid()); - - tid_reader = malloc(sizeof(*tid_reader) * nr_readers); - tid_writer = malloc(sizeof(*tid_writer) * nr_writers); - count_reader = malloc(sizeof(*count_reader) * nr_readers); - tot_nr_writes = malloc(sizeof(*tot_nr_writes) * nr_writers); - pending_reclaims = malloc(sizeof(*pending_reclaims) * nr_writers); - if (reclaim_batch * sizeof(*pending_reclaims[i].queue) - < CAA_CACHE_LINE_SIZE) - for (i = 0; i < nr_writers; i++) - pending_reclaims[i].queue = calloc(1, CAA_CACHE_LINE_SIZE); - else - for (i = 0; i < nr_writers; i++) - pending_reclaims[i].queue = calloc(reclaim_batch, - sizeof(*pending_reclaims[i].queue)); - for (i = 0; i < nr_writers; i++) - pending_reclaims[i].head = pending_reclaims[i].queue; - - next_aff = 0; - - for (i = 0; i < nr_readers; i++) { - err = pthread_create(&tid_reader[i], NULL, thr_reader, - &count_reader[i]); - if (err != 0) - exit(1); - } - for (i = 0; i < nr_writers; i++) { - err = pthread_create(&tid_writer[i], NULL, thr_writer, - (void *)(long)i); - if (err != 0) - exit(1); - } - - cmm_smp_mb(); - - test_go = 1; - - sleep(duration); - - test_stop = 1; - - for (i = 0; i < nr_readers; i++) { - err = pthread_join(tid_reader[i], &tret); - if (err != 0) - exit(1); - tot_reads += count_reader[i]; - } - for (i = 0; i < nr_writers; i++) { - err = pthread_join(tid_writer[i], &tret); - if (err != 0) - exit(1); - tot_writes += tot_nr_writes[i]; - rcu_gc_clear_queue(i); - } - - printf_verbose("total number of reads : %llu, writes %llu\n", tot_reads, - tot_writes); - 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 " - "batch %u\n", - argv[0], duration, nr_readers, rduration, wduration, - nr_writers, wdelay, tot_reads, tot_writes, - tot_reads + tot_writes, reclaim_batch); - free(tid_reader); - free(tid_writer); - free(count_reader); - free(tot_nr_writes); - for (i = 0; i < nr_writers; i++) - free(pending_reclaims[i].queue); - free(pending_reclaims); - - return 0; -} diff --git a/tests/test_qsbr_timing.c b/tests/test_qsbr_timing.c deleted file mode 100644 index 7925548..0000000 --- a/tests/test_qsbr_timing.c +++ /dev/null @@ -1,243 +0,0 @@ -/* - * test_qsbr_timing.c - * - * Userspace QSBR - test program - * - * Copyright February 2009 - Mathieu Desnoyers - * - * 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 - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include - -#ifdef __linux__ -#include -#endif - -#if defined(_syscall0) -_syscall0(pid_t, gettid) -#elif defined(__NR_gettid) -static inline pid_t gettid(void) -{ - return syscall(__NR_gettid); -} -#else -#warning "use pid as tid" -static inline pid_t gettid(void) -{ - return getpid(); -} -#endif - -#define _LGPL_SOURCE -#include - -pthread_mutex_t rcu_copy_mutex = PTHREAD_MUTEX_INITIALIZER; - -void rcu_copy_mutex_lock(void) -{ - int ret; - ret = pthread_mutex_lock(&rcu_copy_mutex); - if (ret) { - perror("Error in pthread mutex lock"); - exit(-1); - } -} - -void rcu_copy_mutex_unlock(void) -{ - int ret; - - ret = pthread_mutex_unlock(&rcu_copy_mutex); - if (ret) { - perror("Error in pthread mutex unlock"); - exit(-1); - } -} - -struct test_array { - int a; -}; - -static struct test_array *test_rcu_pointer; - -#define OUTER_READ_LOOP 2000U -#define INNER_READ_LOOP 100000U -#define READ_LOOP ((unsigned long long)OUTER_READ_LOOP * INNER_READ_LOOP) - -#define OUTER_WRITE_LOOP 10U -#define INNER_WRITE_LOOP 200U -#define WRITE_LOOP ((unsigned long long)OUTER_WRITE_LOOP * INNER_WRITE_LOOP) - -static int num_read; -static int num_write; - -#define NR_READ num_read -#define NR_WRITE num_write - -static cycles_t __attribute__((aligned(CAA_CACHE_LINE_SIZE))) *reader_time; -static cycles_t __attribute__((aligned(CAA_CACHE_LINE_SIZE))) *writer_time; - -void *thr_reader(void *arg) -{ - int i, j; - struct test_array *local_ptr; - cycles_t time1, time2; - - printf("thread_begin %s, thread id : %lx, tid %lu\n", - "reader", pthread_self(), (unsigned long)gettid()); - sleep(2); - - rcu_register_thread(); - - time1 = caa_get_cycles(); - for (i = 0; i < OUTER_READ_LOOP; i++) { - for (j = 0; j < INNER_READ_LOOP; j++) { - _rcu_read_lock(); - local_ptr = _rcu_dereference(test_rcu_pointer); - if (local_ptr) { - assert(local_ptr->a == 8); - } - _rcu_read_unlock(); - } - _rcu_quiescent_state(); - } - time2 = caa_get_cycles(); - - rcu_unregister_thread(); - - reader_time[(unsigned long)arg] = time2 - time1; - - sleep(2); - printf("thread_end %s, thread id : %lx, tid %lu\n", - "reader", pthread_self(), (unsigned long)gettid()); - return ((void*)1); - -} - -void *thr_writer(void *arg) -{ - int i, j; - struct test_array *new, *old; - cycles_t time1, time2; - - printf("thread_begin %s, thread id : %lx, tid %lu\n", - "writer", pthread_self(), (unsigned long)gettid()); - sleep(2); - - for (i = 0; i < OUTER_WRITE_LOOP; i++) { - for (j = 0; j < INNER_WRITE_LOOP; j++) { - time1 = caa_get_cycles(); - new = malloc(sizeof(struct test_array)); - rcu_copy_mutex_lock(); - old = test_rcu_pointer; - if (old) { - assert(old->a == 8); - } - new->a = 8; - old = rcu_xchg_pointer(&test_rcu_pointer, new); - rcu_copy_mutex_unlock(); - synchronize_rcu(); - /* can be done after unlock */ - if (old) { - old->a = 0; - } - free(old); - time2 = caa_get_cycles(); - writer_time[(unsigned long)arg] += time2 - time1; - usleep(1); - } - } - - printf("thread_end %s, thread id : %lx, tid %lu\n", - "writer", pthread_self(), (unsigned long)gettid()); - return ((void*)2); -} - -int main(int argc, char **argv) -{ - int err; - pthread_t *tid_reader, *tid_writer; - void *tret; - int i; - cycles_t tot_rtime = 0; - cycles_t tot_wtime = 0; - - if (argc < 2) { - printf("Usage : %s nr_readers nr_writers\n", argv[0]); - exit(-1); - } - num_read = atoi(argv[1]); - num_write = atoi(argv[2]); - - reader_time = malloc(sizeof(*reader_time) * num_read); - writer_time = malloc(sizeof(*writer_time) * num_write); - tid_reader = malloc(sizeof(*tid_reader) * num_read); - tid_writer = malloc(sizeof(*tid_writer) * num_write); - - printf("thread %-6s, thread id : %lx, tid %lu\n", - "main", pthread_self(), (unsigned long)gettid()); - - for (i = 0; i < NR_READ; i++) { - err = pthread_create(&tid_reader[i], NULL, thr_reader, - (void *)(long)i); - if (err != 0) - exit(1); - } - for (i = 0; i < NR_WRITE; i++) { - err = pthread_create(&tid_writer[i], NULL, thr_writer, - (void *)(long)i); - if (err != 0) - exit(1); - } - - sleep(10); - - for (i = 0; i < NR_READ; i++) { - err = pthread_join(tid_reader[i], &tret); - if (err != 0) - exit(1); - tot_rtime += reader_time[i]; - } - for (i = 0; i < NR_WRITE; i++) { - err = pthread_join(tid_writer[i], &tret); - if (err != 0) - exit(1); - tot_wtime += writer_time[i]; - } - free(test_rcu_pointer); - printf("Time per read : %g cycles\n", - (double)tot_rtime / ((double)NR_READ * (double)READ_LOOP)); - printf("Time per write : %g cycles\n", - (double)tot_wtime / ((double)NR_WRITE * (double)WRITE_LOOP)); - - free(reader_time); - free(writer_time); - free(tid_reader); - free(tid_writer); - - return 0; -}