X-Git-Url: https://git.lttng.org/?p=urcu.git;a=blobdiff_plain;f=tests%2Ftest_qsbr_gc.c;h=875fd36c487113c58b37aa6909c6b64c9c835238;hp=12430d0d30d6f33f010a533a4ceceb3a04ae6937;hb=5481ddb381061bda64aebc039900d21cac6a6caf;hpb=94b343fd8d68512d78d8646c646c15a1b3f84186 diff --git a/tests/test_qsbr_gc.c b/tests/test_qsbr_gc.c index 12430d0..875fd36 100644 --- a/tests/test_qsbr_gc.c +++ b/tests/test_qsbr_gc.c @@ -3,7 +3,7 @@ * * Userspace RCU library - test program (with baatch reclamation) * - * Copyright February 2009 - Mathieu Desnoyers + * 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 @@ -21,6 +21,7 @@ */ #define _GNU_SOURCE +#include "../config.h" #include #include #include @@ -81,6 +82,9 @@ struct reclaim_queue { 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) @@ -101,6 +105,12 @@ 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) { cpu_set_t mask; @@ -110,6 +120,7 @@ static void set_affinity(void) if (!use_affinity) return; +#if HAVE_SCHED_SETAFFINITY ret = pthread_mutex_lock(&affinity_mutex); if (ret) { perror("Error in pthread mutex lock"); @@ -121,9 +132,15 @@ static void set_affinity(void) 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 */ } /* @@ -186,7 +203,7 @@ void *thr_reader(void *_count) while (!test_go) { } - smp_mb(); + cmm_smp_mb(); for (;;) { _rcu_read_lock(); @@ -262,7 +279,7 @@ void *thr_writer(void *data) while (!test_go) { } - smp_mb(); + cmm_smp_mb(); for (;;) { #ifndef TEST_LOCAL_GC @@ -270,6 +287,8 @@ void *thr_writer(void *data) 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())) @@ -290,8 +309,10 @@ void show_usage(int argc, char **argv) #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"); @@ -372,6 +393,13 @@ int main(int argc, char **argv) } 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; @@ -416,7 +444,7 @@ int main(int argc, char **argv) exit(1); } - smp_mb(); + cmm_smp_mb(); test_go = 1; @@ -440,11 +468,11 @@ int main(int argc, char **argv) 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 " "batch %u\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, reclaim_batch); free(tid_reader);