X-Git-Url: http://git.liburcu.org/?a=blobdiff_plain;f=tests%2Ftest_urcu.c;h=1ea9d07945d1741ab2dd58db57c454950b113cd4;hb=31b598e0bb2fde285afa63986613e632e98b104d;hp=18683bf3928972cdc6cec5cfaacc753596a4f9a3;hpb=833dbdb633ba44bfb71b4b965a83096d8e4e827b;p=urcu.git diff --git a/tests/test_urcu.c b/tests/test_urcu.c index 18683bf..1ea9d07 100644 --- a/tests/test_urcu.c +++ b/tests/test_urcu.c @@ -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; @@ -78,6 +77,9 @@ 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) @@ -98,6 +100,12 @@ 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; @@ -107,6 +115,7 @@ 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"); @@ -118,9 +127,15 @@ 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 */ } /* @@ -259,7 +274,10 @@ void *thr_writer(void *_count) for (;;) { new = test_array_alloc(); new->a = 8; - old = rcu_publish_content(&test_rcu_pointer, new); + old = rcu_xchg_pointer(&test_rcu_pointer, new); + if (unlikely(wduration)) + loop_sleep(wduration); + synchronize_rcu(); if (old) old->a = 0; test_array_free(old); @@ -284,6 +302,7 @@ 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"); @@ -357,6 +376,13 @@ 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;