X-Git-Url: https://git.kernel.dk/?p=fio.git;a=blobdiff_plain;f=gettime-thread.c;h=0a2cc6c451d533d1a5c56ce2ce857c85a7b31de2;hp=73632d0b35675510a9edd2a8c52cf0f15bec71e2;hb=ab9d7762b2c9907964a9f0553dd86bf469edd89d;hpb=79c896a122a7a39b840257215e622bdeff8272f1 diff --git a/gettime-thread.c b/gettime-thread.c index 73632d0b..0a2cc6c4 100644 --- a/gettime-thread.c +++ b/gettime-thread.c @@ -1,50 +1,53 @@ -#include -#include #include #include #include "fio.h" #include "smalloc.h" -struct timeval *fio_tv = NULL; +struct timespec *fio_ts = NULL; int fio_gtod_offload = 0; -static os_cpu_mask_t fio_gtod_cpumask; static pthread_t gtod_thread; +static os_cpu_mask_t fio_gtod_cpumask; void fio_gtod_init(void) { - if (fio_tv) + if (fio_ts) return; - fio_tv = smalloc(sizeof(struct timeval)); - if (!fio_tv) - log_err("fio: smalloc pool exhausted\n"); + fio_ts = smalloc(sizeof(*fio_ts)); } static void fio_gtod_update(void) { - if (fio_tv) { + if (fio_ts) { struct timeval __tv; gettimeofday(&__tv, NULL); - fio_tv->tv_sec = __tv.tv_sec; + fio_ts->tv_sec = __tv.tv_sec; write_barrier(); - fio_tv->tv_usec = __tv.tv_usec; + fio_ts->tv_nsec = __tv.tv_usec * 1000; write_barrier(); } } struct gtod_cpu_data { - struct fio_mutex *mutex; + struct fio_sem *sem; unsigned int cpu; }; static void *gtod_thread_main(void *data) { - struct fio_mutex *mutex = data; + struct fio_sem *sem = data; + int ret; - fio_setaffinity(gettid(), fio_gtod_cpumask); - fio_mutex_up(mutex); + ret = fio_setaffinity(gettid(), fio_gtod_cpumask); + + fio_sem_up(sem); + + if (ret == -1) { + log_err("gtod: setaffinity failed\n"); + return NULL; + } /* * As long as we have jobs around, update the clock. It would be nice @@ -62,17 +65,17 @@ static void *gtod_thread_main(void *data) int fio_start_gtod_thread(void) { - struct fio_mutex *mutex; + struct fio_sem *sem; pthread_attr_t attr; int ret; - mutex = fio_mutex_init(FIO_MUTEX_LOCKED); - if (!mutex) + sem = fio_sem_init(FIO_SEM_LOCKED); + if (!sem) return 1; pthread_attr_init(&attr); - pthread_attr_setstacksize(&attr, PTHREAD_STACK_MIN); - ret = pthread_create(>od_thread, &attr, gtod_thread_main, mutex); + pthread_attr_setstacksize(&attr, 2 * PTHREAD_STACK_MIN); + ret = pthread_create(>od_thread, &attr, gtod_thread_main, sem); pthread_attr_destroy(&attr); if (ret) { log_err("Can't create gtod thread: %s\n", strerror(ret)); @@ -81,19 +84,21 @@ int fio_start_gtod_thread(void) ret = pthread_detach(gtod_thread); if (ret) { - log_err("Can't detatch gtod thread: %s\n", strerror(ret)); + log_err("Can't detach gtod thread: %s\n", strerror(ret)); goto err; } - dprint(FD_MUTEX, "wait on startup_mutex\n"); - fio_mutex_down(mutex); - dprint(FD_MUTEX, "done waiting on startup_mutex\n"); + dprint(FD_MUTEX, "wait on startup_sem\n"); + fio_sem_down(sem); + dprint(FD_MUTEX, "done waiting on startup_sem\n"); err: - fio_mutex_remove(mutex); + fio_sem_remove(sem); return ret; } void fio_gtod_set_cpu(unsigned int cpu) { +#ifdef FIO_HAVE_CPU_AFFINITY fio_cpu_set(&fio_gtod_cpumask, cpu); +#endif }