X-Git-Url: https://git.liburcu.org/?p=urcu.git;a=blobdiff_plain;f=tests%2Ftest_perthreadlock.c;h=9de8ced9ff1747e26c5f6874f27adef73017e444;hp=7402f01e0dcf24eb08893d64013f50d64ee681af;hb=5481ddb381061bda64aebc039900d21cac6a6caf;hpb=833dbdb633ba44bfb71b4b965a83096d8e4e827b diff --git a/tests/test_perthreadlock.c b/tests/test_perthreadlock.c index 7402f01..9de8ced 100644 --- a/tests/test_perthreadlock.c +++ b/tests/test_perthreadlock.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 @@ -21,6 +21,7 @@ */ #define _GNU_SOURCE +#include "../config.h" #include #include #include @@ -32,11 +33,9 @@ #include #include #include +#include -#include "../arch.h" - -/* Make this big enough to include the POWER5+ L3 cacheline size of 256B */ -#define CACHE_LINE_SIZE 4096 +#include /* hardcoded number of CPUs */ #define NR_CPUS 16384 @@ -61,7 +60,7 @@ static inline pid_t gettid(void) #else #define debug_yield_read() #endif -#include "../urcu.h" +#include struct test_array { int a; @@ -84,6 +83,9 @@ 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) @@ -104,6 +106,12 @@ 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; @@ -113,6 +121,7 @@ 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"); @@ -126,7 +135,12 @@ static void set_affinity(void) } 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 */ } /* @@ -220,7 +234,7 @@ void *thr_writer(void *data) while (!test_go) { } - smp_mb(); + cmm_smp_mb(); for (;;) { for (tidx = 0; tidx < nr_readers; tidx++) { @@ -228,6 +242,8 @@ void *thr_writer(void *data) } test_array.a = 0; test_array.a = 8; + if (unlikely(wduration)) + loop_sleep(wduration); for (tidx = (long)nr_readers - 1; tidx >= 0; tidx--) { pthread_mutex_unlock(&per_thread_lock[tidx].lock); } @@ -252,6 +268,7 @@ 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"); @@ -270,7 +287,7 @@ 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) { @@ -326,6 +343,13 @@ 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; @@ -362,7 +386,7 @@ int main(int argc, char **argv) exit(1); } - smp_mb(); + cmm_smp_mb(); test_go = 1; @@ -385,10 +409,10 @@ 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);