X-Git-Url: https://git.kernel.dk/?p=fio.git;a=blobdiff_plain;f=fio.c;h=d1faacae860deaf97c90e9a8e8142aabb899f205;hp=7b03250bd22ddce7b01c6a3e8e306ca108ef447e;hb=cc0df00ad5076d4adbc439899f24d9b0db26075d;hpb=d708ac5e21c97a92c9c7b6b7593d9f2b0d7c9d3f diff --git a/fio.c b/fio.c index 7b03250b..d1faacae 100644 --- a/fio.c +++ b/fio.c @@ -24,10 +24,12 @@ #include #include #include +#include #include #include #include #include +#include #include #include #include @@ -43,6 +45,8 @@ #include "cgroup.h" #include "profile.h" #include "lib/rand.h" +#include "memalign.h" +#include "server.h" unsigned long page_mask; unsigned long page_size; @@ -62,14 +66,15 @@ static struct fio_mutex *startup_mutex; static struct fio_mutex *writeout_mutex; static volatile int fio_abort; static int exit_value; -static struct itimerval itimer; static pthread_t gtod_thread; +static pthread_t disk_util_thread; static struct flist_head *cgroup_list; static char *cgroup_mnt; +unsigned long arch_flags = 0; + struct io_log *agg_io_log[2]; -#define TERMINATE_ALL (-1) #define JOB_START_TIMEOUT (5 * 1000) void td_set_runstate(struct thread_data *td, int runstate) @@ -82,7 +87,7 @@ void td_set_runstate(struct thread_data *td, int runstate) td->runstate = runstate; } -static void terminate_threads(int group_id) +void fio_terminate_threads(int group_id) { struct thread_data *td; int i; @@ -99,75 +104,99 @@ static void terminate_threads(int group_id) /* * if the thread is running, just let it exit */ - if (td->runstate < TD_RUNNING) - kill(td->pid, SIGQUIT); + if (!td->pid) + continue; + else if (td->runstate < TD_RAMP) + kill(td->pid, SIGTERM); else { struct ioengine_ops *ops = td->io_ops; - if (ops && (ops->flags & FIO_SIGQUIT)) - kill(td->pid, SIGQUIT); + if (ops && (ops->flags & FIO_SIGTERM)) + kill(td->pid, SIGTERM); } } } } -static void status_timer_arm(void) +static void sig_int(int sig) { - itimer.it_value.tv_sec = 0; - itimer.it_value.tv_usec = DISK_UTIL_MSEC * 1000; - setitimer(ITIMER_REAL, &itimer, NULL); + if (threads) { + log_info("\nfio: terminating on signal %d\n", sig); + exit_backend = 1; + fflush(stdout); + exit_value = 128; + fio_terminate_threads(TERMINATE_ALL); + } } -static void sig_alrm(int fio_unused sig) +static void *disk_thread_main(void *data) { - if (threads) { + fio_mutex_up(startup_mutex); + + while (threads) { + usleep(DISK_UTIL_MSEC * 1000); + if (!threads) + break; update_io_ticks(); - print_thread_status(); - status_timer_arm(); + + if (is_backend) + fio_server_send_status(); + else + print_thread_status(); } -} -/* - * Happens on thread runs with ctrl-c, ignore our own SIGQUIT - */ -static void sig_quit(int sig) -{ + return NULL; } -static void sig_int(int sig) +static int create_disk_util_thread(void) { - if (threads) { - log_info("\nfio: terminating on signal %d\n", sig); - fflush(stdout); - terminate_threads(TERMINATE_ALL); + int ret; + + ret = pthread_create(&disk_util_thread, NULL, disk_thread_main, NULL); + if (ret) { + log_err("Can't create disk util thread: %s\n", strerror(ret)); + return 1; } + + ret = pthread_detach(disk_util_thread); + if (ret) { + log_err("Can't detatch disk util thread: %s\n", strerror(ret)); + return 1; + } + + dprint(FD_MUTEX, "wait on startup_mutex\n"); + fio_mutex_down(startup_mutex); + dprint(FD_MUTEX, "done waiting on startup_mutex\n"); + return 0; } static void set_sig_handlers(void) { struct sigaction act; - memset(&act, 0, sizeof(act)); - act.sa_handler = sig_alrm; - act.sa_flags = SA_RESTART; - sigaction(SIGALRM, &act, NULL); - memset(&act, 0, sizeof(act)); act.sa_handler = sig_int; act.sa_flags = SA_RESTART; sigaction(SIGINT, &act, NULL); memset(&act, 0, sizeof(act)); - act.sa_handler = sig_quit; + act.sa_handler = sig_int; act.sa_flags = SA_RESTART; - sigaction(SIGQUIT, &act, NULL); + sigaction(SIGTERM, &act, NULL); + + if (is_backend) { + memset(&act, 0, sizeof(act)); + act.sa_handler = sig_int; + act.sa_flags = SA_RESTART; + sigaction(SIGPIPE, &act, NULL); + } } /* * Check if we are above the minimum rate given. */ static int __check_min_rate(struct thread_data *td, struct timeval *now, - enum td_ddir ddir) + enum fio_ddir ddir) { unsigned long long bytes = 0; unsigned long iops = 0; @@ -359,10 +388,15 @@ requeue: return 0; } +static inline void __update_tv_cache(struct thread_data *td) +{ + fio_gettime(&td->tv_cache, NULL); +} + static inline void update_tv_cache(struct thread_data *td) { if ((++td->tv_cache_nr & td->tv_cache_mask) == td->tv_cache_mask) - fio_gettime(&td->tv_cache, NULL); + __update_tv_cache(td); } static int break_on_this_error(struct thread_data *td, int *retptr) @@ -448,8 +482,11 @@ static void do_verify(struct thread_data *td) update_tv_cache(td); if (runtime_exceeded(td, &td->tv_cache)) { - td->terminate = 1; - break; + __update_tv_cache(td); + if (runtime_exceeded(td, &td->tv_cache)) { + td->terminate = 1; + break; + } } io_u = __get_io_u(td); @@ -479,7 +516,6 @@ static void do_verify(struct thread_data *td) clear_io_u(td, io_u); } else if (io_u->resid) { int bytes = io_u->xfer_buflen - io_u->resid; - struct fio_file *f = io_u->file; /* * zero read, fail @@ -497,6 +533,7 @@ static void do_verify(struct thread_data *td) if (ddir_rw(io_u->ddir)) td->ts.short_io_u[io_u->ddir]++; + f = io_u->file; if (io_u->offset == f->real_file_size) goto sync_done; @@ -527,13 +564,14 @@ sync_done: /* * if we can queue more, do so. but check if there are - * completed io_u's first. + * completed io_u's first. Note that we can get BUSY even + * without IO queued, if the system is resource starved. */ - full = queue_full(td) || ret == FIO_Q_BUSY; + full = queue_full(td) || (ret == FIO_Q_BUSY && td->cur_depth); if (full || !td->o.iodepth_batch_complete) { min_events = min(td->o.iodepth_batch_complete, td->cur_depth); - if (full && !min_events) + if (full && !min_events && td->o.iodepth_batch_complete != 0) min_events = 1; do { @@ -594,8 +632,11 @@ static void do_io(struct thread_data *td) update_tv_cache(td); if (runtime_exceeded(td, &td->tv_cache)) { - td->terminate = 1; - break; + __update_tv_cache(td); + if (runtime_exceeded(td, &td->tv_cache)) { + td->terminate = 1; + break; + } } io_u = get_io_u(td); @@ -684,13 +725,15 @@ sync_done: break; /* - * See if we need to complete some commands + * See if we need to complete some commands. Note that we + * can get BUSY even without IO queued, if the system is + * resource starved. */ - full = queue_full(td) || ret == FIO_Q_BUSY; + full = queue_full(td) || (ret == FIO_Q_BUSY && td->cur_depth); if (full || !td->o.iodepth_batch_complete) { min_evts = min(td->o.iodepth_batch_complete, td->cur_depth); - if (full && !min_evts) + if (full && !min_evts && td->o.iodepth_batch_complete != 0) min_evts = 1; if (__should_check_rate(td, 0) || @@ -713,7 +756,7 @@ sync_done: if (!in_ramp_time(td) && should_check_rate(td, bytes_done)) { if (check_min_rate(td, &comp_time, bytes_done)) { if (exitall_on_terminate) - terminate_threads(td->groupid); + fio_terminate_threads(td->groupid); td_verror(td, EIO, "check_min_rate"); break; } @@ -747,8 +790,11 @@ sync_done: struct fio_file *f; i = td->cur_depth; - if (i) + if (i) { ret = io_u_queued_complete(td, i, NULL); + if (td->o.fill_device && td->error == ENOSPC) + td->error = 0; + } if (should_fsync(td) && td->o.end_fsync) { td_set_runstate(td, TD_FSYNCING); @@ -778,7 +824,7 @@ static void cleanup_io_u(struct thread_data *td) io_u = flist_entry(entry, struct io_u, list); flist_del(&io_u->list); - free(io_u); + fio_memfree(io_u, sizeof(*io_u)); } free_io_mem(td); @@ -811,7 +857,8 @@ static int init_io_u(struct thread_data *td) if (allocate_io_mem(td)) return 1; - if (td->o.odirect || td->o.mem_align) + if (td->o.odirect || td->o.mem_align || + (td->io_ops->flags & FIO_RAWIO)) p = PAGE_ALIGN(td->orig_buffer) + td->o.mem_align; else p = td->orig_buffer; @@ -824,8 +871,9 @@ static int init_io_u(struct thread_data *td) if (td->terminate) return 1; - if (posix_memalign(&ptr, cl_align, sizeof(*io_u))) { - log_err("fio: posix_memalign=%s\n", strerror(errno)); + ptr = fio_memalign(cl_align, sizeof(*io_u)); + if (!ptr) { + log_err("fio: unable to allocate aligned memory\n"); break; } @@ -838,14 +886,14 @@ static int init_io_u(struct thread_data *td) io_u->buf = p + max_bs * i; dprint(FD_MEM, "io_u %p, mem %p\n", io_u, io_u->buf); - if (td_write(td) && !td->o.refill_buffers) + if (td_write(td)) io_u_fill_buffer(td, io_u, max_bs); - else if (td_write(td) && td->o.verify_pattern_bytes) { + if (td_write(td) && td->o.verify_pattern_bytes) { /* * Fill the buffer with the pattern if we are * going to be doing writes. */ - fill_pattern(td, io_u->buf, max_bs, io_u); + fill_pattern(td, io_u->buf, max_bs, io_u, 0, 0); } } @@ -936,7 +984,7 @@ static int keep_running(struct thread_data *td) static void reset_io_counters(struct thread_data *td) { - td->ts.stat_io_bytes[0] = td->ts.stat_io_bytes[1] = 0; + td->stat_io_bytes[0] = td->stat_io_bytes[1] = 0; td->this_io_bytes[0] = td->this_io_bytes[1] = 0; td->zone_bytes = 0; td->rate_bytes[0] = td->rate_bytes[1] = 0; @@ -949,11 +997,6 @@ static void reset_io_counters(struct thread_data *td) */ if (td->o.time_based || td->o.loops) td->nr_done_files = 0; - - /* - * Set the same seed to get repeatable runs - */ - td_fill_rand_seeds(td); } void reset_all_stats(struct thread_data *td) @@ -969,8 +1012,10 @@ void reset_all_stats(struct thread_data *td) td->io_issues[i] = 0; td->ts.total_io_u[i] = 0; } - + fio_gettime(&tv, NULL); + td->ts.runtime[0] = 0; + td->ts.runtime[1] = 0; memcpy(&td->epoch, &tv, sizeof(tv)); memcpy(&td->start, &tv, sizeof(tv)); } @@ -985,6 +1030,11 @@ static void clear_io_state(struct thread_data *td) close_files(td); for_each_file(td, f, i) fio_file_clear_done(f); + + /* + * Set the same seed to get repeatable runs + */ + td_fill_rand_seeds(td); } static int exec_string(const char *string) @@ -1009,15 +1059,16 @@ static int exec_string(const char *string) */ static void *thread_main(void *data) { - unsigned long long runtime[2], elapsed; + unsigned long long elapsed; struct thread_data *td = data; pthread_condattr_t attr; int clear_state; - if (!td->o.use_thread) + if (!td->o.use_thread) { setsid(); - - td->pid = getpid(); + td->pid = getpid(); + } else + td->pid = gettid(); dprint(FD_PROCESS, "jobs pid=%d started\n", (int) td->pid); @@ -1048,12 +1099,32 @@ static void *thread_main(void *data) */ fio_mutex_remove(td->mutex); + /* + * A new gid requires privilege, so we need to do this before setting + * the uid. + */ + if (td->o.gid != -1U && setgid(td->o.gid)) { + td_verror(td, errno, "setgid"); + goto err; + } if (td->o.uid != -1U && setuid(td->o.uid)) { td_verror(td, errno, "setuid"); goto err; } - if (td->o.gid != -1U && setgid(td->o.gid)) { - td_verror(td, errno, "setgid"); + + /* + * If we have a gettimeofday() thread, make sure we exclude that + * thread from this job + */ + if (td->o.gtod_cpu) + fio_cpu_clear(&td->o.cpumask, td->o.gtod_cpu); + + /* + * Set affinity first, in case it has an impact on the memory + * allocations. + */ + if (td->o.cpumask_set && fio_setaffinity(td->pid, td->o.cpumask) == -1) { + td_verror(td, errno, "cpu_set_affinity"); goto err; } @@ -1070,23 +1141,6 @@ static void *thread_main(void *data) if (td->o.verify_async && verify_async_init(td)) goto err; - if (td->o.cpumask_set && fio_setaffinity(td->pid, td->o.cpumask) == -1) { - td_verror(td, errno, "cpu_set_affinity"); - goto err; - } - - /* - * If we have a gettimeofday() thread, make sure we exclude that - * thread from this job - */ - if (td->o.gtod_cpu) { - fio_cpu_clear(&td->o.cpumask, td->o.gtod_cpu); - if (fio_setaffinity(td->pid, td->o.cpumask) == -1) { - td_verror(td, errno, "cpu_set_affinity"); - goto err; - } - } - if (td->ioprio_set) { if (ioprio_set(IOPRIO_WHO_PROCESS, 0, td->ioprio) == -1) { td_verror(td, errno, "ioprio_set"); @@ -1125,20 +1179,17 @@ static void *thread_main(void *data) } fio_gettime(&td->epoch, NULL); - getrusage(RUSAGE_SELF, &td->ts.ru_start); + getrusage(RUSAGE_SELF, &td->ru_start); - runtime[0] = runtime[1] = 0; clear_state = 0; while (keep_running(td)) { fio_gettime(&td->start, NULL); - memcpy(&td->ts.stat_sample_time[0], &td->start, - sizeof(td->start)); - memcpy(&td->ts.stat_sample_time[1], &td->start, - sizeof(td->start)); + memcpy(&td->stat_sample_time[0], &td->start, sizeof(td->start)); + memcpy(&td->stat_sample_time[1], &td->start, sizeof(td->start)); memcpy(&td->tv_cache, &td->start, sizeof(td->start)); if (td->o.ratemin[0] || td->o.ratemin[1]) - memcpy(&td->lastrate, &td->ts.stat_sample_time, + memcpy(&td->lastrate, &td->stat_sample_time, sizeof(td->lastrate)); if (clear_state) @@ -1152,11 +1203,11 @@ static void *thread_main(void *data) if (td_read(td) && td->io_bytes[DDIR_READ]) { elapsed = utime_since_now(&td->start); - runtime[DDIR_READ] += elapsed; + td->ts.runtime[DDIR_READ] += elapsed; } if (td_write(td) && td->io_bytes[DDIR_WRITE]) { elapsed = utime_since_now(&td->start); - runtime[DDIR_WRITE] += elapsed; + td->ts.runtime[DDIR_WRITE] += elapsed; } if (td->error || td->terminate) @@ -1173,54 +1224,54 @@ static void *thread_main(void *data) do_verify(td); - runtime[DDIR_READ] += utime_since_now(&td->start); + td->ts.runtime[DDIR_READ] += utime_since_now(&td->start); if (td->error || td->terminate) break; } update_rusage_stat(td); - td->ts.runtime[0] = (runtime[0] + 999) / 1000; - td->ts.runtime[1] = (runtime[1] + 999) / 1000; + td->ts.runtime[0] = (td->ts.runtime[0] + 999) / 1000; + td->ts.runtime[1] = (td->ts.runtime[1] + 999) / 1000; td->ts.total_run_time = mtime_since_now(&td->epoch); td->ts.io_bytes[0] = td->io_bytes[0]; td->ts.io_bytes[1] = td->io_bytes[1]; fio_mutex_down(writeout_mutex); - if (td->ts.bw_log) { + if (td->bw_log) { if (td->o.bw_log_file) { - finish_log_named(td, td->ts.bw_log, + finish_log_named(td, td->bw_log, td->o.bw_log_file, "bw"); } else - finish_log(td, td->ts.bw_log, "bw"); + finish_log(td, td->bw_log, "bw"); } - if (td->ts.lat_log) { + if (td->lat_log) { if (td->o.lat_log_file) { - finish_log_named(td, td->ts.lat_log, + finish_log_named(td, td->lat_log, td->o.lat_log_file, "lat"); } else - finish_log(td, td->ts.lat_log, "lat"); + finish_log(td, td->lat_log, "lat"); } - if (td->ts.slat_log) { + if (td->slat_log) { if (td->o.lat_log_file) { - finish_log_named(td, td->ts.slat_log, + finish_log_named(td, td->slat_log, td->o.lat_log_file, "slat"); } else - finish_log(td, td->ts.slat_log, "slat"); + finish_log(td, td->slat_log, "slat"); } - if (td->ts.clat_log) { + if (td->clat_log) { if (td->o.lat_log_file) { - finish_log_named(td, td->ts.clat_log, + finish_log_named(td, td->clat_log, td->o.lat_log_file, "clat"); } else - finish_log(td, td->ts.clat_log, "clat"); + finish_log(td, td->clat_log, "clat"); } fio_mutex_up(writeout_mutex); if (td->o.exec_postrun) exec_string(td->o.exec_postrun); if (exitall_on_terminate) - terminate_threads(td->groupid); + fio_terminate_threads(td->groupid); err: if (td->error) @@ -1261,6 +1312,7 @@ static int fork_main(int shmid, int offset) struct thread_data *td; void *data, *ret; +#ifndef __hpux data = shmat(shmid, NULL, 0); if (data == (void *) -1) { int __err = errno; @@ -1268,6 +1320,12 @@ static int fork_main(int shmid, int offset) perror("shmat"); return __err; } +#else + /* + * HP-UX inherits shm mappings? + */ + data = threads; +#endif td = data + offset * sizeof(struct thread_data); ret = thread_main(td); @@ -1333,7 +1391,7 @@ static void reap_threads(int *nr_running, int *t_rate, int *m_rate) if (WIFSIGNALED(status)) { int sig = WTERMSIG(status); - if (sig != SIGQUIT) + if (sig != SIGTERM) log_err("fio: pid=%d, got signal=%d\n", (int) td->pid, sig); td_set_runstate(td, TD_REAPED); @@ -1367,7 +1425,7 @@ reaped: } if (*nr_running == cputhreads && !pending && realthreads) - terminate_threads(TERMINATE_ALL); + fio_terminate_threads(TERMINATE_ALL); } static void *gtod_thread_main(void *data) @@ -1429,6 +1487,8 @@ static void run_threads(void) if (fio_gtod_offload && fio_start_gtod_thread()) return; + set_sig_handlers(); + if (!terse_output) { log_info("Starting "); if (nr_thread) @@ -1444,8 +1504,6 @@ static void run_threads(void) fflush(stdout); } - set_sig_handlers(); - todo = thread_number; nr_running = 0; nr_started = 0; @@ -1454,10 +1512,8 @@ static void run_threads(void) for_each_td(td, i) { print_status_init(td->thread_number - 1); - if (!td->o.create_serialize) { - init_disk_util(td); + if (!td->o.create_serialize) continue; - } /* * do file setup here so it happens sequentially, @@ -1473,26 +1529,24 @@ static void run_threads(void) todo--; } else { struct fio_file *f; - unsigned int i; + unsigned int j; /* * for sharing to work, each job must always open * its own files. so close them, if we opened them * for creation */ - for_each_file(td, f, i) { + for_each_file(td, f, j) { if (fio_file_open(f)) td_io_close_file(td, f); } } - - init_disk_util(td); } set_genesis_time(); while (todo) { - struct thread_data *map[MAX_JOBS]; + struct thread_data *map[REAL_MAX_JOBS]; struct timeval this_start; int this_jobs = 0, left; @@ -1525,6 +1579,8 @@ static void run_threads(void) break; } + init_disk_util(td); + /* * Set state to created. Thread will transition * to TD_INITIALIZED when it's done setting up. @@ -1563,7 +1619,7 @@ static void run_threads(void) dprint(FD_MUTEX, "wait on startup_mutex\n"); if (fio_mutex_down_timeout(startup_mutex, 10)) { log_err("fio: job startup hung? exiting.\n"); - terminate_threads(TERMINATE_ALL); + fio_terminate_threads(TERMINATE_ALL); fio_abort = 1; nr_started--; break; @@ -1637,6 +1693,10 @@ static void run_threads(void) while (nr_running) { reap_threads(&nr_running, &t_rate, &m_rate); + + if (is_backend) + fio_server_idle_loop(); + usleep(10000); } @@ -1644,34 +1704,10 @@ static void run_threads(void) fio_unpin_memory(); } -int main(int argc, char *argv[]) +int exec_run(void) { - long ps; - - sinit(); - init_rand(&__fio_rand_state); - - /* - * We need locale for number printing, if it isn't set then just - * go with the US format. - */ - if (!getenv("LC_NUMERIC")) - setlocale(LC_NUMERIC, "en_US"); - - ps = sysconf(_SC_PAGESIZE); - if (ps < 0) { - log_err("Failed to get page size\n"); - return 1; - } - - page_size = ps; - page_mask = ps - 1; - - fio_keywords_init(); - - if (parse_options(argc, argv)) - return 1; - + if (nr_clients) + return fio_handle_clients(); if (exec_profile && load_profile(exec_profile)) return 1; @@ -1684,11 +1720,14 @@ int main(int argc, char *argv[]) } startup_mutex = fio_mutex_init(0); + if (startup_mutex == NULL) + return 1; writeout_mutex = fio_mutex_init(1); + if (writeout_mutex == NULL) + return 1; set_genesis_time(); - - status_timer_arm(); + create_disk_util_thread(); cgroup_list = smalloc(sizeof(*cgroup_list)); INIT_FLIST_HEAD(cgroup_list); @@ -1712,3 +1751,44 @@ int main(int argc, char *argv[]) fio_mutex_remove(writeout_mutex); return exit_value; } + +void reset_fio_state(void) +{ + groupid = 0; + thread_number = 0; + nr_process = 0; + nr_thread = 0; + done_secs = 0; +} + +int main(int argc, char *argv[], char *envp[]) +{ + long ps; + + arch_init(envp); + + sinit(); + + /* + * We need locale for number printing, if it isn't set then just + * go with the US format. + */ + if (!getenv("LC_NUMERIC")) + setlocale(LC_NUMERIC, "en_US"); + + ps = sysconf(_SC_PAGESIZE); + if (ps < 0) { + log_err("Failed to get page size\n"); + return 1; + } + + page_size = ps; + page_mask = ps - 1; + + fio_keywords_init(); + + if (parse_options(argc, argv)) + return 1; + + return exec_run(); +}