X-Git-Url: https://git.lttng.org/?p=urcu.git;a=blobdiff_plain;f=tests%2Ftest_urcu_gc.c;h=5c57f3fbb33f8899d5abd5efda249ed53ca7c245;hp=2c944a5c41c613fedf327d9a4b6ee3c85bc049ce;hb=9aa14175d93952464fa8ec15df54e2656c349c0b;hpb=6982d6d71aeed16d2d929bd0ed221e8f444b706e diff --git a/tests/test_urcu_gc.c b/tests/test_urcu_gc.c index 2c944a5..5c57f3f 100644 --- a/tests/test_urcu_gc.c +++ b/tests/test_urcu_gc.c @@ -1,7 +1,7 @@ /* * test_urcu_gc.c * - * Userspace RCU library - test program (with baatch reclamation) + * Userspace RCU library - test program (with batch reclamation) * * Copyright February 2009 - Mathieu Desnoyers * @@ -31,34 +31,20 @@ #include #include #include -#include -#include #include #include +#include +#include "cpuset.h" +#include "thread-id.h" /* 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() +#define rcu_debug_yield_read() #endif #include @@ -89,10 +75,10 @@ static unsigned long rduration; /* write-side C.S. duration, in loops */ static unsigned long wduration; -static inline void loop_sleep(unsigned long l) +static inline void loop_sleep(unsigned long loops) { - while(l-- != 0) - cpu_relax(); + while (loops-- != 0) + caa_cpu_relax(); } static int verbose_mode; @@ -109,17 +95,12 @@ 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) { +#if HAVE_SCHED_SETAFFINITY cpu_set_t mask; - int cpu; - int ret; + int cpu, ret; +#endif /* HAVE_SCHED_SETAFFINITY */ if (!use_affinity) return; @@ -160,11 +141,11 @@ static int test_duration_read(void) 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 int nr_readers; static unsigned int nr_writers; @@ -197,8 +178,8 @@ 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()); + printf_verbose("thread_begin %s, tid %lu\n", + "reader", urcu_get_thread_id()); set_affinity(); @@ -207,27 +188,27 @@ void *thr_reader(void *_count) while (!test_go) { } - smp_mb(); + cmm_smp_mb(); for (;;) { rcu_read_lock(); local_ptr = rcu_dereference(test_rcu_pointer); - debug_yield_read(); + rcu_debug_yield_read(); if (local_ptr) assert(local_ptr->a == 8); - if (unlikely(rduration)) + if (caa_unlikely(rduration)) loop_sleep(rduration); rcu_read_unlock(); - nr_reads++; - if (unlikely(!test_duration_read())) + URCU_TLS(nr_reads)++; + if (caa_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()); + *count = URCU_TLS(nr_reads); + printf_verbose("thread_end %s, tid %lu\n", + "reader", urcu_get_thread_id()); return ((void*)1); } @@ -256,7 +237,7 @@ static void rcu_gc_reclaim(unsigned long wtidx, void *old) *pending_reclaims[wtidx].head = old; pending_reclaims[wtidx].head++; - if (likely(pending_reclaims[wtidx].head - pending_reclaims[wtidx].queue + if (caa_likely(pending_reclaims[wtidx].head - pending_reclaims[wtidx].queue < reclaim_batch)) return; @@ -272,15 +253,15 @@ void *thr_writer(void *data) struct test_array *new, *old; #endif - printf_verbose("thread_begin %s, thread id : %lx, tid %lu\n", - "writer", pthread_self(), (unsigned long)gettid()); + printf_verbose("thread_begin %s, tid %lu\n", + "writer", urcu_get_thread_id()); set_affinity(); while (!test_go) { } - smp_mb(); + cmm_smp_mb(); for (;;) { #ifndef TEST_LOCAL_GC @@ -288,33 +269,35 @@ void *thr_writer(void *data) new->a = 8; old = rcu_xchg_pointer(&test_rcu_pointer, new); #endif - if (unlikely(wduration)) + if (caa_unlikely(wduration)) loop_sleep(wduration); rcu_gc_reclaim(wtidx, old); - 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; + printf_verbose("thread_end %s, tid %lu\n", + "writer", urcu_get_thread_id()); + tot_nr_writes[wtidx] = URCU_TLS(nr_writes); return ((void*)2); } void show_usage(int argc, char **argv) { - printf("Usage : %s nr_readers nr_writers duration (s)", argv[0]); + printf("Usage : %s nr_readers nr_writers duration (s) \n", + argv[0]); + printf("OPTIONS:\n"); #ifdef DEBUG_YIELD - printf(" [-r] [-w] (yield reader and/or writer)"); + printf(" [-r] [-w] (yield reader and/or writer)\n"); #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(" [-d delay] (writer period (us))\n"); + printf(" [-c duration] (reader C.S. duration (in loops))\n"); + printf(" [-e duration] (writer C.S. duration (in loops))\n"); + printf(" [-v] (verbose output)\n"); + printf(" [-a cpu#] [-a cpu#]... (affinity)\n"); printf("\n"); } @@ -356,10 +339,10 @@ int main(int argc, char **argv) switch (argv[i][1]) { #ifdef DEBUG_YIELD case 'r': - yield_active |= YIELD_READ; + rcu_yield_active |= RCU_YIELD_READ; break; case 'w': - yield_active |= YIELD_WRITE; + rcu_yield_active |= RCU_YIELD_WRITE; break; #endif case 'a': @@ -410,18 +393,18 @@ int main(int argc, char **argv) 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); + printf_verbose("thread %-6s, tid %lu\n", + "main", urcu_get_thread_id()); + + tid_reader = calloc(nr_readers, sizeof(*tid_reader)); + tid_writer = calloc(nr_writers, sizeof(*tid_writer)); + count_reader = calloc(nr_readers, sizeof(*count_reader)); + tot_nr_writes = calloc(nr_writers, sizeof(*tot_nr_writes)); + pending_reclaims = calloc(nr_writers, sizeof(*pending_reclaims)); if (reclaim_batch * sizeof(*pending_reclaims[i].queue) - < CACHE_LINE_SIZE) + < CAA_CACHE_LINE_SIZE) for (i = 0; i < nr_writers; i++) - pending_reclaims[i].queue = calloc(1, CACHE_LINE_SIZE); + 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, @@ -444,7 +427,7 @@ int main(int argc, char **argv) exit(1); } - smp_mb(); + cmm_smp_mb(); test_go = 1;