X-Git-Url: https://git.lttng.org/?p=urcu.git;a=blobdiff_plain;f=tests%2Ftest_rwlock.c;h=1f267e677e48c4e586680ab0c8a8f7dffc11db7f;hp=b8931008bfd6dd172b53f7f2dbde0ef8d683d885;hb=ab0aacbe1a25d50d069f0b24aa492e84ea296f57;hpb=d8540fc53386cd7ff270085aca621e32772832ba diff --git a/tests/test_rwlock.c b/tests/test_rwlock.c index b893100..1f267e6 100644 --- a/tests/test_rwlock.c +++ b/tests/test_rwlock.c @@ -3,7 +3,7 @@ * * Userspace RCU library - test program * - * 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 @@ -31,11 +31,15 @@ #include #include #include -#include #include #include #include +#include + +#ifdef __linux__ +#include +#endif /* hardcoded number of CPUs */ #define NR_CPUS 16384 @@ -79,10 +83,13 @@ static unsigned long duration; /* read-side C.S. duration, in loops */ static unsigned long rduration; -static inline void loop_sleep(unsigned long l) +/* write-side C.S. duration, in loops */ +static unsigned long wduration; + +static inline void loop_sleep(unsigned long loops) { - while(l-- != 0) - cpu_relax(); + while (loops-- != 0) + caa_cpu_relax(); } static int verbose_mode; @@ -150,8 +157,8 @@ 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 int nr_readers; static unsigned int nr_writers; @@ -195,15 +202,15 @@ void *thr_reader(void *_count) for (;;) { pthread_rwlock_rdlock(&lock); assert(test_array.a == 8); - if (unlikely(rduration)) + if (caa_unlikely(rduration)) loop_sleep(rduration); pthread_rwlock_unlock(&lock); - nr_reads++; - if (unlikely(!test_duration_read())) + URCU_TLS(nr_reads)++; + if (caa_unlikely(!test_duration_read())) break; } - *count = nr_reads; + *count = URCU_TLS(nr_reads); printf_verbose("thread_end %s, thread id : %lx, tid %lu\n", "reader", pthread_self(), (unsigned long)gettid()); return ((void*)1); @@ -222,23 +229,25 @@ void *thr_writer(void *_count) while (!test_go) { } - smp_mb(); + cmm_smp_mb(); for (;;) { pthread_rwlock_wrlock(&lock); test_array.a = 0; test_array.a = 8; + if (caa_unlikely(wduration)) + loop_sleep(wduration); pthread_rwlock_unlock(&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()); - *count = nr_writes; + *count = URCU_TLS(nr_writes); return ((void*)2); } @@ -250,6 +259,7 @@ void show_usage(int argc, char **argv) #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"); @@ -268,7 +278,7 @@ int main(int argc, char **argv) show_usage(argc, argv); return -1; } - smp_mb(); + cmm_smp_mb(); err = sscanf(argv[1], "%u", &nr_readers); if (err != 1) { @@ -324,6 +334,13 @@ 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; @@ -357,7 +374,7 @@ int main(int argc, char **argv) exit(1); } - smp_mb(); + cmm_smp_mb(); test_go = 1; @@ -380,10 +397,10 @@ 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\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);