X-Git-Url: https://git.kernel.dk/?p=fio.git;a=blobdiff_plain;f=fio.c;h=9e93159f42c161160134e209a3a643e49dc3cd61;hp=6ce46ba5a31e9be12d4c2cc6ef524ec5297837c4;hb=74929ac27bcbaa26a08a9abcda70b5ebba94166e;hpb=37f56873d5f521d4fc1bc2ef6ea718a91e3570a6 diff --git a/fio.c b/fio.c index 6ce46ba5..dfd15e0f 100644 --- a/fio.c +++ b/fio.c @@ -35,28 +35,44 @@ #include #include "fio.h" -#include "os.h" +#include "hash.h" +#include "smalloc.h" +#include "verify.h" +#include "diskutil.h" -static unsigned long page_mask; -#define ALIGN(buf) \ +unsigned long page_mask; +unsigned long page_size; + +#define PAGE_ALIGN(buf) \ (char *) (((unsigned long) (buf) + page_mask) & ~page_mask) int groupid = 0; int thread_number = 0; +int nr_process = 0; +int nr_thread = 0; int shm_id = 0; int temp_stall_ts; +unsigned long done_secs = 0; -static struct fio_sem *startup_sem; +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; struct io_log *agg_io_log[2]; #define TERMINATE_ALL (-1) #define JOB_START_TIMEOUT (5 * 1000) -static inline void td_set_runstate(struct thread_data *td, int runstate) +void td_set_runstate(struct thread_data *td, int runstate) { + if (td->runstate == runstate) + return; + + dprint(FD_PROCESS, "pid=%d: runstate %d -> %d\n", (int) td->pid, + td->runstate, runstate); td->runstate = runstate; } @@ -65,48 +81,113 @@ static void terminate_threads(int group_id) struct thread_data *td; int i; + dprint(FD_PROCESS, "terminate group_id=%d\n", group_id); + for_each_td(td, i) { if (group_id == TERMINATE_ALL || groupid == td->groupid) { + dprint(FD_PROCESS, "setting terminate on %s/%d\n", + td->o.name, (int) td->pid); + td->terminate = 1; + td->o.start_delay = 0; + /* * if the thread is running, just let it exit */ if (td->runstate < TD_RUNNING) kill(td->pid, SIGQUIT); - td->terminate = 1; - td->start_delay = 0; + else { + struct ioengine_ops *ops = td->io_ops; + + if (ops && (ops->flags & FIO_SIGQUIT)) + kill(td->pid, SIGQUIT); + } } } } -static void sig_handler(int sig) +static void status_timer_arm(void) { - switch (sig) { - case SIGALRM: - update_io_ticks(); - disk_util_timer_arm(); - print_thread_status(); - break; - default: - printf("\nfio: terminating on signal %d\n", sig); - fflush(stdout); - terminate_threads(TERMINATE_ALL); - break; + itimer.it_value.tv_sec = 0; + itimer.it_value.tv_usec = DISK_UTIL_MSEC * 1000; + setitimer(ITIMER_REAL, &itimer, NULL); +} + +static void sig_alrm(int fio_unused sig) +{ + if (threads) { + update_io_ticks(); + print_thread_status(); + status_timer_arm(); + } +} + +/* + * Happens on thread runs with ctrl-c, ignore our own SIGQUIT + */ +static void sig_quit(int sig) +{ +} + +static void sig_int(int sig) +{ + if (threads) { + printf("\nfio: terminating on signal %d\n", sig); + fflush(stdout); + terminate_threads(TERMINATE_ALL); } } +static void sig_ill(int fio_unused sig) +{ + if (!threads) + return; + + log_err("fio: illegal instruction. your cpu does not support " + "the sse4.2 instruction for crc32c\n"); + terminate_threads(TERMINATE_ALL); + exit(4); +} + +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_ill; + act.sa_flags = SA_RESTART; + sigaction(SIGILL, &act, NULL); + + memset(&act, 0, sizeof(act)); + act.sa_handler = sig_quit; + act.sa_flags = SA_RESTART; + sigaction(SIGQUIT, &act, NULL); +} + /* * Check if we are above the minimum rate given. */ -static int check_min_rate(struct thread_data *td, struct timeval *now) +static int __check_min_rate(struct thread_data *td, struct timeval *now, + enum td_ddir ddir) { unsigned long long bytes = 0; + unsigned long iops = 0; unsigned long spent; unsigned long rate; + unsigned int ratemin = 0; + unsigned int rate_iops = 0; + unsigned int rate_iops_min = 0; - /* - * No minimum rate set, always ok - */ - if (!td->ratemin) + if (!td->o.ratemin[ddir] && !td->o.rate_iops_min[ddir]) return 0; /* @@ -115,41 +196,82 @@ static int check_min_rate(struct thread_data *td, struct timeval *now) if (mtime_since(&td->start, now) < 2000) return 0; - if (td_read(td)) - bytes += td->this_io_bytes[DDIR_READ]; - if (td_write(td)) - bytes += td->this_io_bytes[DDIR_WRITE]; + iops += td->io_blocks[ddir]; + bytes += td->this_io_bytes[ddir]; + ratemin += td->o.ratemin[ddir]; + rate_iops += td->o.rate_iops[ddir]; + rate_iops_min += td->o.rate_iops_min[ddir]; /* * if rate blocks is set, sample is running */ - if (td->rate_bytes) { - spent = mtime_since(&td->lastrate, now); - if (spent < td->ratecycle) + if (td->rate_bytes[ddir] || td->rate_blocks[ddir]) { + spent = mtime_since(&td->lastrate[ddir], now); + if (spent < td->o.ratecycle) return 0; - if (bytes < td->rate_bytes) { - fprintf(f_out, "%s: min rate %u not met\n", td->name, td->ratemin); - return 1; + if (td->o.rate[ddir]) { + /* + * check bandwidth specified rate + */ + if (bytes < td->rate_bytes[ddir]) { + log_err("%s: min rate %u not met\n", td->o.name, + ratemin); + return 1; + } else { + rate = ((bytes - td->rate_bytes[ddir]) * 1000) / spent; + if (rate < ratemin || + bytes < td->rate_bytes[ddir]) { + log_err("%s: min rate %u not met, got" + " %luKB/sec\n", td->o.name, + ratemin, rate); + return 1; + } + } } else { - rate = (bytes - td->rate_bytes) / spent; - if (rate < td->ratemin || bytes < td->rate_bytes) { - fprintf(f_out, "%s: min rate %u not met, got %luKiB/sec\n", td->name, td->ratemin, rate); + /* + * checks iops specified rate + */ + if (iops < rate_iops) { + log_err("%s: min iops rate %u not met\n", + td->o.name, rate_iops); return 1; + } else { + rate = ((iops - td->rate_blocks[ddir]) * 1000) / spent; + if (rate < rate_iops_min || + iops < td->rate_blocks[ddir]) { + log_err("%s: min iops rate %u not met," + " got %lu\n", td->o.name, + rate_iops_min, rate); + } } } } - td->rate_bytes = bytes; - memcpy(&td->lastrate, now, sizeof(*now)); + td->rate_bytes[ddir] = bytes; + td->rate_blocks[ddir] = iops; + memcpy(&td->lastrate[ddir], now, sizeof(*now)); return 0; } +static int check_min_rate(struct thread_data *td, struct timeval *now, + unsigned long *bytes_done) +{ + int ret = 0; + + if (bytes_done[0]) + ret |= __check_min_rate(td, now, 0); + if (bytes_done[1]) + ret |= __check_min_rate(td, now, 1); + + return ret; +} + static inline int runtime_exceeded(struct thread_data *td, struct timeval *t) { - if (!td->timeout) + if (!td->o.timeout) return 0; - if (mtime_since(&td->epoch, t) >= td->timeout * 1000) + if (mtime_since(&td->epoch, t) >= td->o.timeout * 1000) return 1; return 0; @@ -161,14 +283,14 @@ static inline int runtime_exceeded(struct thread_data *td, struct timeval *t) */ static void cleanup_pending_aio(struct thread_data *td) { - struct list_head *entry, *n; + struct flist_head *entry, *n; struct io_u *io_u; int r; /* * get immediately available events, if any */ - r = io_u_queued_complete(td, 0); + r = io_u_queued_complete(td, 0, NULL); if (r < 0) return; @@ -176,8 +298,8 @@ static void cleanup_pending_aio(struct thread_data *td) * now cancel remaining active events */ if (td->io_ops->cancel) { - list_for_each_safe(entry, n, &td->io_u_busylist) { - io_u = list_entry(entry, struct io_u, list); + flist_for_each_safe(entry, n, &td->io_u_busylist) { + io_u = flist_entry(entry, struct io_u, list); /* * if the io_u isn't in flight, then that generally @@ -196,7 +318,7 @@ static void cleanup_pending_aio(struct thread_data *td) } if (td->cur_depth) - r = io_u_queued_complete(td, td->cur_depth); + r = io_u_queued_complete(td, td->cur_depth, NULL); } /* @@ -226,7 +348,7 @@ requeue: put_io_u(td, io_u); return 1; } else if (ret == FIO_Q_QUEUED) { - if (io_u_queued_complete(td, 1) < 0) + if (io_u_queued_complete(td, 1, NULL) < 0) return 1; } else if (ret == FIO_Q_COMPLETED) { if (io_u->error) { @@ -234,7 +356,7 @@ requeue: return 1; } - if (io_u_sync_complete(td, io_u) < 0) + if (io_u_sync_complete(td, io_u, NULL) < 0) return 1; } else if (ret == FIO_Q_BUSY) { if (td_io_commit(td)) @@ -245,6 +367,57 @@ requeue: return 0; } +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); +} + +static int break_on_this_error(struct thread_data *td, int *retptr) +{ + int ret = *retptr; + + if (ret < 0 || td->error) { + int err; + + if (!td->o.continue_on_error) + return 1; + + if (ret < 0) + err = -ret; + else + err = td->error; + + if (td_non_fatal_error(err)) { + /* + * Continue with the I/Os in case of + * a non fatal error. + */ + update_error_count(td, err); + td_clear_error(td); + *retptr = 0; + return 0; + } else if (td->o.fill_device && err == ENOSPC) { + /* + * We expect to hit this error if + * fill_device option is set. + */ + td_clear_error(td); + td->terminate = 1; + return 1; + } else { + /* + * Stop the I/O in case of a fatal + * error. + */ + update_error_count(td, err); + return 1; + } + } + + return 0; +} + /* * The main verify engine. Runs over the writes we previously submitted, * reads the blocks back in, and checks the crc/md5 of the data. @@ -253,13 +426,16 @@ static void do_verify(struct thread_data *td) { struct fio_file *f; struct io_u *io_u; - int ret, i, min_events; + int ret, min_events; + unsigned int i; /* * sync io first and invalidate cache, to make sure we really * read from disk. */ for_each_file(td, f, i) { + if (!fio_file_open(f)) + continue; if (fio_io_sync(td, f)) break; if (file_invalidate_cache(td, f)) @@ -273,17 +449,19 @@ static void do_verify(struct thread_data *td) io_u = NULL; while (!td->terminate) { - int ret2; + int ret2, full; - io_u = __get_io_u(td); - if (!io_u) - break; + update_tv_cache(td); - if (runtime_exceeded(td, &io_u->start_time)) { - put_io_u(td, io_u); + if (runtime_exceeded(td, &td->tv_cache)) { + td->terminate = 1; break; } + io_u = __get_io_u(td); + if (!io_u) + break; + if (get_next_verify(td, io_u)) { put_io_u(td, io_u); break; @@ -294,21 +472,43 @@ static void do_verify(struct thread_data *td) break; } - io_u->end_io = verify_io_u; + if (td->o.verify_async) + io_u->end_io = verify_io_u_async; + else + io_u->end_io = verify_io_u; ret = td_io_queue(td, io_u); switch (ret) { case FIO_Q_COMPLETED: - if (io_u->error) + if (io_u->error) { ret = -io_u->error; - else if (io_u->xfer_buflen != io_u->resid && io_u->resid) { + 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 + */ + if (!bytes) { + td_verror(td, EIO, "full resid"); + put_io_u(td, io_u); + break; + } io_u->xfer_buflen = io_u->resid; io_u->xfer_buf += bytes; + io_u->offset += bytes; + + td->ts.short_io_u[io_u->ddir]++; + + if (io_u->offset == f->real_file_size) + goto sync_done; + requeue_io_u(td, &io_u); } else { - ret = io_u_sync_complete(td, io_u); +sync_done: + ret = io_u_sync_complete(td, io_u, NULL); if (ret < 0) break; } @@ -327,26 +527,32 @@ static void do_verify(struct thread_data *td) break; } - if (ret < 0 || td->error) + if (break_on_this_error(td, &ret)) break; /* * if we can queue more, do so. but check if there are * completed io_u's first. */ - min_events = 0; - if (queue_full(td) || ret == FIO_Q_BUSY) { - min_events = 1; - - if (td->cur_depth > td->iodepth_low) - min_events = td->cur_depth - td->iodepth_low; + full = queue_full(td) || ret == FIO_Q_BUSY; + if (full || !td->o.iodepth_batch_complete) { + min_events = td->o.iodepth_batch_complete; + if (full && !min_events) + min_events = 1; + + do { + /* + * Reap required number of io units, if any, + * and do the verification on them through + * the callback handler + */ + if (io_u_queued_complete(td, min_events, NULL) < 0) { + ret = -1; + break; + } + } while (full && (td->cur_depth > td->o.iodepth_low)); } - - /* - * Reap required number of io units, if any, and do the - * verification on them through the callback handler - */ - if (io_u_queued_complete(td, min_events) < 0) + if (ret < 0) break; } @@ -354,87 +560,101 @@ static void do_verify(struct thread_data *td) min_events = td->cur_depth; if (min_events) - ret = io_u_queued_complete(td, min_events); + ret = io_u_queued_complete(td, min_events, NULL); } else cleanup_pending_aio(td); td_set_runstate(td, TD_RUNNING); } -/* - * Not really an io thread, all it does is burn CPU cycles in the specified - * manner. - */ -static void do_cpuio(struct thread_data *td) -{ - struct timeval e; - int split = 100 / td->cpuload; - int i = 0; - - while (!td->terminate) { - fio_gettime(&e, NULL); - - if (runtime_exceeded(td, &e)) - break; - - if (!(i % split)) - __usec_sleep(10000); - else - usec_sleep(td, 10000); - - i++; - } -} - /* * Main IO worker function. It retrieves io_u's to process and queues * and reaps them, checking for rate and errors along the way. */ static void do_io(struct thread_data *td) { - struct timeval s; - unsigned long usec; - int i, ret = 0; + unsigned int i; + int ret = 0; - td_set_runstate(td, TD_RUNNING); + if (in_ramp_time(td)) + td_set_runstate(td, TD_RAMP); + else + td_set_runstate(td, TD_RUNNING); - while ((td->this_io_bytes[0] + td->this_io_bytes[1]) < td->io_size) { + while ((td->this_io_bytes[0] + td->this_io_bytes[1]) < td->o.size) { struct timeval comp_time; - long bytes_done = 0; + unsigned long bytes_done[2] = { 0, 0 }; int min_evts = 0; struct io_u *io_u; - int ret2; + int ret2, full; if (td->terminate) break; + update_tv_cache(td); + + if (runtime_exceeded(td, &td->tv_cache)) { + td->terminate = 1; + break; + } + io_u = get_io_u(td); if (!io_u) break; - memcpy(&s, &io_u->start_time, sizeof(s)); - - if (runtime_exceeded(td, &s)) { - put_io_u(td, io_u); - break; - } + /* + * Add verification end_io handler, if asked to verify + * a previously written file. + */ + if (td->o.verify != VERIFY_NONE && io_u->ddir == DDIR_READ) { + if (td->o.verify_async) + io_u->end_io = verify_io_u_async; + else + io_u->end_io = verify_io_u; + td_set_runstate(td, TD_VERIFYING); + } else if (in_ramp_time(td)) + td_set_runstate(td, TD_RAMP); + else + td_set_runstate(td, TD_RUNNING); ret = td_io_queue(td, io_u); switch (ret) { case FIO_Q_COMPLETED: - if (io_u->error) + if (io_u->error) { ret = -io_u->error; - else if (io_u->xfer_buflen != io_u->resid && io_u->resid) { + 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 + */ + if (!bytes) { + td_verror(td, EIO, "full resid"); + put_io_u(td, io_u); + break; + } io_u->xfer_buflen = io_u->resid; io_u->xfer_buf += bytes; + io_u->offset += bytes; + + td->ts.short_io_u[io_u->ddir]++; + + if (io_u->offset == f->real_file_size) + goto sync_done; + requeue_io_u(td, &io_u); } else { - fio_gettime(&comp_time, NULL); - bytes_done = io_u_sync_complete(td, io_u); - if (bytes_done < 0) - ret = bytes_done; +sync_done: + if (__should_check_rate(td, 0) || + __should_check_rate(td, 1)) + fio_gettime(&comp_time, NULL); + + ret = io_u_sync_complete(td, io_u, bytes_done); + if (ret < 0) + break; } break; case FIO_Q_QUEUED: @@ -458,150 +678,169 @@ static void do_io(struct thread_data *td) break; } - if (ret < 0 || td->error) + if (break_on_this_error(td, &ret)) break; /* * See if we need to complete some commands */ - if (ret == FIO_Q_QUEUED || ret == FIO_Q_BUSY) { - min_evts = 0; - if (queue_full(td) || ret == FIO_Q_BUSY) { + full = queue_full(td) || ret == FIO_Q_BUSY; + if (full || !td->o.iodepth_batch_complete) { + min_evts = td->o.iodepth_batch_complete; + if (full && !min_evts) min_evts = 1; - if (td->cur_depth > td->iodepth_low) - min_evts = td->cur_depth - td->iodepth_low; - } + if (__should_check_rate(td, 0) || + __should_check_rate(td, 1)) + fio_gettime(&comp_time, NULL); - fio_gettime(&comp_time, NULL); - bytes_done = io_u_queued_complete(td, min_evts); - if (bytes_done < 0) - break; + do { + ret = io_u_queued_complete(td, min_evts, bytes_done); + if (ret < 0) + break; + + } while (full && (td->cur_depth > td->o.iodepth_low)); } - if (!bytes_done) + if (ret < 0) + break; + if (!(bytes_done[0] + bytes_done[1])) continue; - /* - * the rate is batched for now, it should work for batches - * of completions except the very first one which may look - * a little bursty - */ - usec = utime_since(&s, &comp_time); - - rate_throttle(td, usec, bytes_done); - - if (check_min_rate(td, &comp_time)) { - if (exitall_on_terminate) - terminate_threads(td->groupid); - td_verror(td, ENODATA, "check_min_rate"); - break; + 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); + td_verror(td, EIO, "check_min_rate"); + break; + } } - if (td->thinktime) { + if (td->o.thinktime) { unsigned long long b; b = td->io_blocks[0] + td->io_blocks[1]; - if (!(b % td->thinktime_blocks)) { + if (!(b % td->o.thinktime_blocks)) { int left; - if (td->thinktime_spin) - __usec_sleep(td->thinktime_spin); + if (td->o.thinktime_spin) + usec_spin(td->o.thinktime_spin); - left = td->thinktime - td->thinktime_spin; + left = td->o.thinktime - td->o.thinktime_spin; if (left) usec_sleep(td, left); } } } + if (td->o.fill_device && td->error == ENOSPC) { + td->error = 0; + td->terminate = 1; + } if (!td->error) { struct fio_file *f; i = td->cur_depth; if (i) - ret = io_u_queued_complete(td, i); + ret = io_u_queued_complete(td, i, NULL); - if (should_fsync(td) && td->end_fsync) { + if (should_fsync(td) && td->o.end_fsync) { td_set_runstate(td, TD_FSYNCING); - for_each_file(td, f, i) + + for_each_file(td, f, i) { + if (!fio_file_open(f)) + continue; fio_io_sync(td, f); + } } } else cleanup_pending_aio(td); + + /* + * stop job if we failed doing any IO + */ + if ((td->this_io_bytes[0] + td->this_io_bytes[1]) == 0) + td->done = 1; } static void cleanup_io_u(struct thread_data *td) { - struct list_head *entry, *n; + struct flist_head *entry, *n; struct io_u *io_u; - list_for_each_safe(entry, n, &td->io_u_freelist) { - io_u = list_entry(entry, struct io_u, list); + flist_for_each_safe(entry, n, &td->io_u_freelist) { + io_u = flist_entry(entry, struct io_u, list); - list_del(&io_u->list); + flist_del(&io_u->list); free(io_u); } free_io_mem(td); } -/* - * "randomly" fill the buffer contents - */ -static void fill_rand_buf(struct io_u *io_u, int max_bs) -{ - int *ptr = io_u->buf; - - while ((void *) ptr - io_u->buf < max_bs) { - *ptr = rand() * 0x9e370001; - ptr++; - } -} - static int init_io_u(struct thread_data *td) { struct io_u *io_u; unsigned int max_bs; - int i, max_units; + int cl_align, i, max_units; char *p; - if (td->io_ops->flags & FIO_CPUIO) - return 0; + max_units = td->o.iodepth; + max_bs = max(td->o.max_bs[DDIR_READ], td->o.max_bs[DDIR_WRITE]); + td->orig_buffer_size = (unsigned long long) max_bs + * (unsigned long long) max_units; - if (td->io_ops->flags & FIO_SYNCIO) - max_units = 1; - else - max_units = td->iodepth; + if (td->o.mem_type == MEM_SHMHUGE || td->o.mem_type == MEM_MMAPHUGE) { + unsigned long bs; - max_bs = max(td->max_bs[DDIR_READ], td->max_bs[DDIR_WRITE]); - td->orig_buffer_size = max_bs * max_units; + bs = td->orig_buffer_size + td->o.hugepage_size - 1; + td->orig_buffer_size = bs & ~(td->o.hugepage_size - 1); + } - if (td->mem_type == MEM_SHMHUGE || td->mem_type == MEM_MMAPHUGE) - td->orig_buffer_size = (td->orig_buffer_size + td->hugepage_size - 1) & ~(td->hugepage_size - 1); - else - td->orig_buffer_size += page_mask; + if (td->orig_buffer_size != (size_t) td->orig_buffer_size) { + log_err("fio: IO memory too large. Reduce max_bs or iodepth\n"); + return 1; + } if (allocate_io_mem(td)) return 1; - p = ALIGN(td->orig_buffer); + if (td->o.odirect || td->o.mem_align) + p = PAGE_ALIGN(td->orig_buffer) + td->o.mem_align; + else + p = td->orig_buffer; + + cl_align = os_cache_line_size(); + for (i = 0; i < max_units; i++) { - io_u = malloc(sizeof(*io_u)); + void *ptr; + + if (td->terminate) + return 1; + + if (posix_memalign(&ptr, cl_align, sizeof(*io_u))) { + log_err("fio: posix_memalign=%s\n", strerror(errno)); + break; + } + + io_u = ptr; memset(io_u, 0, sizeof(*io_u)); - INIT_LIST_HEAD(&io_u->list); + INIT_FLIST_HEAD(&io_u->list); + dprint(FD_MEM, "io_u alloc %p, index %u\n", io_u, i); - io_u->buf = p + max_bs * i; - if (td_write(td) || td_rw(td)) - fill_rand_buf(io_u, max_bs); + if (!(td->io_ops->flags & FIO_NOIO)) { + 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) + io_u_fill_buffer(td, io_u, max_bs); + } io_u->index = i; io_u->flags = IO_U_F_FREE; - list_add(&io_u->list, &td->io_u_freelist); + flist_add(&io_u->list, &td->io_u_freelist); } - io_u_init_timeout(); - return 0; } @@ -611,21 +850,26 @@ static int switch_ioscheduler(struct thread_data *td) FILE *f; int ret; - if (td->io_ops->flags & FIO_CPUIO) + if (td->io_ops->flags & FIO_DISKLESSIO) return 0; sprintf(tmp, "%s/queue/scheduler", td->sysfs_root); f = fopen(tmp, "r+"); if (!f) { - td_verror(td, errno, "fopen"); + if (errno == ENOENT) { + log_err("fio: os or kernel doesn't support IO scheduler" + " switching\n"); + return 0; + } + td_verror(td, errno, "fopen iosched"); return 1; } /* * Set io scheduler. */ - ret = fwrite(td->ioscheduler, strlen(td->ioscheduler), 1, f); + ret = fwrite(td->o.ioscheduler, strlen(td->o.ioscheduler), 1, f); if (ferror(f) || ret != 1) { td_verror(td, errno, "fwrite"); fclose(f); @@ -644,9 +888,9 @@ static int switch_ioscheduler(struct thread_data *td) return 1; } - sprintf(tmp2, "[%s]", td->ioscheduler); + sprintf(tmp2, "[%s]", td->o.ioscheduler); if (!strstr(tmp, tmp2)) { - log_err("fio: io scheduler %s not found\n", td->ioscheduler); + log_err("fio: io scheduler %s not found\n", td->o.ioscheduler); td_verror(td, EINVAL, "iosched_switch"); fclose(f); return 1; @@ -656,27 +900,93 @@ static int switch_ioscheduler(struct thread_data *td) return 0; } -static int clear_io_state(struct thread_data *td) +static int keep_running(struct thread_data *td) { - struct fio_file *f; - int i, ret; + unsigned long long io_done; + if (td->done) + return 0; + if (td->o.time_based) + return 1; + if (td->o.loops) { + td->o.loops--; + return 1; + } + + io_done = td->io_bytes[DDIR_READ] + td->io_bytes[DDIR_WRITE] + + td->io_skip_bytes; + if (io_done < td->o.size) + return 1; + + return 0; +} + +static void reset_io_counters(struct thread_data *td) +{ td->ts.stat_io_bytes[0] = td->ts.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; + td->rate_blocks[0] = td->rate_blocks[1] = 0; td->last_was_sync = 0; - for_each_file(td, f, i) - td_io_close_file(td, f); + /* + * reset file done count if we are to start over + */ + if (td->o.time_based || td->o.loops) + td->nr_done_files = 0; - ret = 0; - for_each_file(td, f, i) { - ret = td_io_open_file(td, f); - if (ret) - break; + /* + * Set the same seed to get repeatable runs + */ + td_fill_rand_seeds(td); +} + +void reset_all_stats(struct thread_data *td) +{ + struct timeval tv; + int i; + + reset_io_counters(td); + + for (i = 0; i < 2; i++) { + td->io_bytes[i] = 0; + td->io_blocks[i] = 0; + td->io_issues[i] = 0; + td->ts.total_io_u[i] = 0; } + + fio_gettime(&tv, NULL); + memcpy(&td->epoch, &tv, sizeof(tv)); + memcpy(&td->start, &tv, sizeof(tv)); +} + +static void clear_io_state(struct thread_data *td) +{ + struct fio_file *f; + unsigned int i; + + reset_io_counters(td); + close_files(td); + for_each_file(td, f, i) + fio_file_clear_done(f); +} + +static int exec_string(const char *string) +{ + int ret, newlen = strlen(string) + 1 + 8; + char *str; + + str = malloc(newlen); + sprintf(str, "sh -c %s", string); + + ret = system(str); + if (ret == -1) + log_err("fio: exec of cmd <%s> failed\n", str); + + free(str); return ret; } @@ -686,112 +996,152 @@ static int clear_io_state(struct thread_data *td) */ static void *thread_main(void *data) { - unsigned long long runtime[2]; + unsigned long long runtime[2], elapsed; struct thread_data *td = data; + pthread_condattr_t attr; int clear_state; - if (!td->use_thread) + if (!td->o.use_thread) setsid(); td->pid = getpid(); - INIT_LIST_HEAD(&td->io_u_freelist); - INIT_LIST_HEAD(&td->io_u_busylist); - INIT_LIST_HEAD(&td->io_u_requeues); - INIT_LIST_HEAD(&td->io_hist_list); - INIT_LIST_HEAD(&td->io_log_list); + dprint(FD_PROCESS, "jobs pid=%d started\n", (int) td->pid); + + INIT_FLIST_HEAD(&td->io_u_freelist); + INIT_FLIST_HEAD(&td->io_u_busylist); + INIT_FLIST_HEAD(&td->io_u_requeues); + INIT_FLIST_HEAD(&td->io_log_list); + INIT_FLIST_HEAD(&td->io_hist_list); + INIT_FLIST_HEAD(&td->verify_list); + pthread_mutex_init(&td->io_u_lock, NULL); + td->io_hist_tree = RB_ROOT; + + pthread_condattr_init(&attr); + pthread_cond_init(&td->verify_cond, &attr); + pthread_cond_init(&td->free_cond, &attr); + + td_set_runstate(td, TD_INITIALIZED); + dprint(FD_MUTEX, "up startup_mutex\n"); + fio_mutex_up(startup_mutex); + dprint(FD_MUTEX, "wait on td->mutex\n"); + fio_mutex_down(td->mutex); + dprint(FD_MUTEX, "done waiting on td->mutex\n"); + + /* + * the ->mutex mutex is now no longer used, close it to avoid + * eating a file descriptor + */ + fio_mutex_remove(td->mutex); + + /* + * May alter parameters that init_io_u() will use, so we need to + * do this first. + */ + if (init_iolog(td)) + goto err; if (init_io_u(td)) goto err; - if (fio_setaffinity(td) == -1) { + 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 (init_iolog(td)) - 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) { + if (td->ioprio_set) { if (ioprio_set(IOPRIO_WHO_PROCESS, 0, td->ioprio) == -1) { td_verror(td, errno, "ioprio_set"); goto err; } } - if (nice(td->nice) == -1) { + if (nice(td->o.nice) == -1) { td_verror(td, errno, "nice"); goto err; } - if (init_random_state(td)) - goto err; - - if (td->ioscheduler && switch_ioscheduler(td)) + if (td->o.ioscheduler && switch_ioscheduler(td)) goto err; - td_set_runstate(td, TD_INITIALIZED); - fio_sem_up(startup_sem); - fio_sem_down(td->mutex); - - /* - * the ->mutex semaphore is now no longer used, close it to avoid - * eating a file descriptor - */ - fio_sem_remove(td->mutex); - - if (!td->create_serialize && setup_files(td)) + if (!td->o.create_serialize && setup_files(td)) goto err; if (td_io_init(td)) goto err; - if (open_files(td)) + if (init_random_map(td)) goto err; - if (td->exec_prerun) { - if (system(td->exec_prerun) < 0) + if (td->o.exec_prerun) { + if (exec_string(td->o.exec_prerun)) + goto err; + } + + if (td->o.pre_read) { + if (pre_read_files(td) < 0) goto err; } fio_gettime(&td->epoch, NULL); - memcpy(&td->timeout_end, &td->epoch, sizeof(td->epoch)); getrusage(RUSAGE_SELF, &td->ts.ru_start); runtime[0] = runtime[1] = 0; clear_state = 0; - while (td->loops--) { + while (keep_running(td)) { fio_gettime(&td->start, NULL); - memcpy(&td->ts.stat_sample_time, &td->start, sizeof(td->start)); + 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->tv_cache, &td->start, sizeof(td->start)); - if (td->ratemin) - memcpy(&td->lastrate, &td->ts.stat_sample_time, sizeof(td->lastrate)); + if (td->o.ratemin[0] || td->o.ratemin[1]) + memcpy(&td->lastrate, &td->ts.stat_sample_time, + sizeof(td->lastrate)); - if (clear_state && clear_io_state(td)) - break; + if (clear_state) + clear_io_state(td); prune_io_piece_log(td); - if (td->io_ops->flags & FIO_CPUIO) - do_cpuio(td); - else - do_io(td); + do_io(td); clear_state = 1; - if (td_read(td) && td->io_bytes[DDIR_READ]) - runtime[DDIR_READ] += utime_since_now(&td->start); - if (td_write(td) && td->io_bytes[DDIR_WRITE]) - runtime[DDIR_WRITE] += utime_since_now(&td->start); - + if (td_read(td) && td->io_bytes[DDIR_READ]) { + elapsed = utime_since_now(&td->start); + runtime[DDIR_READ] += elapsed; + } + if (td_write(td) && td->io_bytes[DDIR_WRITE]) { + elapsed = utime_since_now(&td->start); + runtime[DDIR_WRITE] += elapsed; + } + if (td->error || td->terminate) break; - if (td->verify == VERIFY_NONE) + if (!td->o.do_verify || + td->o.verify == VERIFY_NONE || + (td->io_ops->flags & FIO_UNIDIR)) continue; - if (clear_io_state(td)) - break; + clear_io_state(td); fio_gettime(&td->start, NULL); @@ -804,34 +1154,65 @@ static void *thread_main(void *data) } update_rusage_stat(td); - td->ts.runtime[0] = runtime[0] / 1000; - td->ts.runtime[1] = runtime[1] / 1000; + td->ts.runtime[0] = (runtime[0] + 999) / 1000; + td->ts.runtime[1] = (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]; - if (td->ts.bw_log) - finish_log(td, td->ts.bw_log, "bw"); - if (td->ts.slat_log) - finish_log(td, td->ts.slat_log, "slat"); - if (td->ts.clat_log) - finish_log(td, td->ts.clat_log, "clat"); - if (td->write_iolog_file) - write_iolog_close(td); - if (td->exec_postrun) { - if (system(td->exec_postrun) < 0) - log_err("fio: postrun %s failed\n", td->exec_postrun); + fio_mutex_down(writeout_mutex); + if (td->ts.bw_log) { + if (td->o.bw_log_file) { + finish_log_named(td, td->ts.bw_log, + td->o.bw_log_file, "bw"); + } else + finish_log(td, td->ts.bw_log, "bw"); + } + if (td->ts.slat_log) { + if (td->o.lat_log_file) { + finish_log_named(td, td->ts.slat_log, + td->o.lat_log_file, "slat"); + } else + finish_log(td, td->ts.slat_log, "slat"); + } + if (td->ts.clat_log) { + if (td->o.lat_log_file) { + finish_log_named(td, td->ts.clat_log, + td->o.lat_log_file, "clat"); + } else + finish_log(td, td->ts.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); err: if (td->error) - printf("fio: pid=%d, err=%d/%s\n", td->pid, td->error, td->verror); - close_files(td); + printf("fio: pid=%d, err=%d/%s\n", (int) td->pid, td->error, + td->verror); + close_and_free_files(td); close_ioengine(td); cleanup_io_u(td); + + if (td->o.cpumask_set) { + int ret = fio_cpuset_exit(&td->o.cpumask); + + td_verror(td, ret, "fio_cpuset_exit"); + } + + if (td->o.verify_async) + verify_async_exit(td); + + /* + * do this very late, it will log file closing as well + */ + if (td->o.write_iolog_file) + write_iolog_close(td); + + options_mem_free(td); td_set_runstate(td, TD_EXITED); return (void *) (unsigned long) td->error; } @@ -865,12 +1246,12 @@ static int fork_main(int shmid, int offset) static void reap_threads(int *nr_running, int *t_rate, int *m_rate) { struct thread_data *td; - int i, cputhreads, pending, status, ret; + int i, cputhreads, realthreads, pending, status, ret; /* * reap exited threads (TD_EXITED -> TD_REAPED) */ - pending = cputhreads = 0; + realthreads = pending = cputhreads = 0; for_each_td(td, i) { int flags = 0; @@ -878,12 +1259,18 @@ static void reap_threads(int *nr_running, int *t_rate, int *m_rate) * ->io_ops is NULL for a thread that has closed its * io engine */ - if (td->io_ops && td->io_ops->flags & FIO_CPUIO) + if (td->io_ops && !strcmp(td->io_ops->name, "cpuio")) cputhreads++; + else + realthreads++; - if (!td->pid || td->runstate == TD_REAPED) + if (!td->pid) { + pending++; + continue; + } + if (td->runstate == TD_REAPED) continue; - if (td->use_thread) { + if (td->o.use_thread) { if (td->runstate == TD_EXITED) { td_set_runstate(td, TD_REAPED); goto reaped; @@ -901,7 +1288,8 @@ static void reap_threads(int *nr_running, int *t_rate, int *m_rate) ret = waitpid(td->pid, &status, flags); if (ret < 0) { if (errno == ECHILD) { - log_err("fio: pid=%d disappeared %d\n", td->pid, td->runstate); + log_err("fio: pid=%d disappeared %d\n", + (int) td->pid, td->runstate); td_set_runstate(td, TD_REAPED); goto reaped; } @@ -911,7 +1299,8 @@ static void reap_threads(int *nr_running, int *t_rate, int *m_rate) int sig = WTERMSIG(status); if (sig != SIGQUIT) - log_err("fio: pid=%d, got signal=%d\n", td->pid, sig); + log_err("fio: pid=%d, got signal=%d\n", + (int) td->pid, sig); td_set_runstate(td, TD_REAPED); goto reaped; } @@ -927,27 +1316,65 @@ static void reap_threads(int *nr_running, int *t_rate, int *m_rate) /* * thread is not dead, continue */ + pending++; continue; reaped: - if (td->use_thread) { - long ret; - - if (pthread_join(td->thread, (void *) &ret)) - perror("pthread_join"); - } - (*nr_running)--; - (*m_rate) -= td->ratemin; - (*t_rate) -= td->rate; + (*m_rate) -= (td->o.ratemin[0] + td->o.ratemin[1]); + (*t_rate) -= (td->o.rate[0] + td->o.rate[1]); + if (!td->pid) + pending--; if (td->error) exit_value++; + + done_secs += mtime_since_now(&td->epoch) / 1000; } - if (*nr_running == cputhreads && !pending) + if (*nr_running == cputhreads && !pending && realthreads) terminate_threads(TERMINATE_ALL); } +static void *gtod_thread_main(void *data) +{ + fio_mutex_up(startup_mutex); + + /* + * As long as we have jobs around, update the clock. It would be nice + * to have some way of NOT hammering that CPU with gettimeofday(), + * but I'm not sure what to use outside of a simple CPU nop to relax + * it - we don't want to lose precision. + */ + while (threads) { + fio_gtod_update(); + nop; + } + + return NULL; +} + +static int fio_start_gtod_thread(void) +{ + int ret; + + ret = pthread_create(>od_thread, NULL, gtod_thread_main, NULL); + if (ret) { + log_err("Can't create gtod thread: %s\n", strerror(ret)); + return 1; + } + + ret = pthread_detach(gtod_thread); + if (ret) { + log_err("Can't detatch gtod 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; +} + /* * Main function for kicking off and reaping jobs, as needed. */ @@ -960,13 +1387,25 @@ static void run_threads(void) if (fio_pin_memory()) return; + if (fio_gtod_offload && fio_start_gtod_thread()) + return; + if (!terse_output) { - printf("Starting %d thread%s\n", thread_number, thread_number > 1 ? "s" : ""); + printf("Starting "); + if (nr_thread) + printf("%d thread%s", nr_thread, + nr_thread > 1 ? "s" : ""); + if (nr_process) { + if (nr_thread) + printf(" and "); + printf("%d process%s", nr_process, + nr_process > 1 ? "es" : ""); + } + printf("\n"); fflush(stdout); } - signal(SIGINT, sig_handler); - signal(SIGALRM, sig_handler); + set_sig_handlers(); todo = thread_number; nr_running = 0; @@ -976,7 +1415,7 @@ static void run_threads(void) for_each_td(td, i) { print_status_init(td->thread_number - 1); - if (!td->create_serialize) { + if (!td->o.create_serialize) { init_disk_util(td); continue; } @@ -989,9 +1428,23 @@ static void run_threads(void) if (setup_files(td)) { exit_value++; if (td->error) - log_err("fio: pid=%d, err=%d/%s\n", td->pid, td->error, td->verror); + log_err("fio: pid=%d, err=%d/%s\n", + (int) td->pid, td->error, td->verror); td_set_runstate(td, TD_REAPED); todo--; + } else { + struct fio_file *f; + unsigned int i; + + /* + * 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) { + if (fio_file_open(f)) + td_io_close_file(td, f); + } } init_disk_util(td); @@ -1020,15 +1473,18 @@ static void run_threads(void) continue; } - if (td->start_delay) { + if (td->o.start_delay) { spent = mtime_since_genesis(); - if (td->start_delay * 1000 > spent) + if (td->o.start_delay * 1000 > spent) continue; } - if (td->stonewall && (nr_started || nr_running)) + if (td->o.stonewall && (nr_started || nr_running)) { + dprint(FD_PROCESS, "%s: stonewall wait\n", + td->o.name); break; + } /* * Set state to created. Thread will transition @@ -1038,19 +1494,42 @@ static void run_threads(void) map[this_jobs++] = td; nr_started++; - if (td->use_thread) { - if (pthread_create(&td->thread, NULL, thread_main, td)) { - perror("thread_create"); + if (td->o.use_thread) { + int ret; + + dprint(FD_PROCESS, "will pthread_create\n"); + ret = pthread_create(&td->thread, NULL, + thread_main, td); + if (ret) { + log_err("pthread_create: %s\n", + strerror(ret)); nr_started--; + break; } + ret = pthread_detach(td->thread); + if (ret) + log_err("pthread_detach: %s", + strerror(ret)); } else { - if (!fork()) { + pid_t pid; + dprint(FD_PROCESS, "will fork\n"); + pid = fork(); + if (!pid) { int ret = fork_main(shm_id, i); - exit(ret); - } + _exit(ret); + } else if (i == fio_debug_jobno) + *fio_debug_jobp = pid; } - fio_sem_down(startup_sem); + 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_abort = 1; + nr_started--; + break; + } + dprint(FD_MUTEX, "done waiting on startup_mutex\n"); } /* @@ -1099,13 +1578,16 @@ static void run_threads(void) if (td->runstate != TD_INITIALIZED) continue; - td_set_runstate(td, TD_RUNNING); + if (in_ramp_time(td)) + td_set_runstate(td, TD_RAMP); + else + td_set_runstate(td, TD_RUNNING); nr_running++; nr_started--; - m_rate += td->ratemin; - t_rate += td->rate; + m_rate += td->o.ratemin[0] + td->o.ratemin[1]; + t_rate += td->o.rate[0] + td->o.rate[1]; todo--; - fio_sem_up(td->mutex); + fio_mutex_up(td->mutex); } reap_threads(&nr_running, &t_rate, &m_rate); @@ -1127,6 +1609,8 @@ int main(int argc, char *argv[]) { long ps; + sinit(); + /* * We need locale for number printing, if it isn't set then just * go with the US format. @@ -1134,43 +1618,47 @@ int main(int argc, char *argv[]) if (!getenv("LC_NUMERIC")) setlocale(LC_NUMERIC, "en_US"); - if (parse_options(argc, argv)) - return 1; - - if (!thread_number) { - log_err("Nothing to do\n"); - return 1; - } - 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 (!thread_number) + return 0; + if (write_bw_log) { setup_log(&agg_io_log[DDIR_READ]); setup_log(&agg_io_log[DDIR_WRITE]); } - startup_sem = fio_sem_init(0); + startup_mutex = fio_mutex_init(0); + writeout_mutex = fio_mutex_init(1); set_genesis_time(); - disk_util_timer_arm(); + status_timer_arm(); run_threads(); if (!fio_abort) { show_run_stats(); if (write_bw_log) { - __finish_log(agg_io_log[DDIR_READ],"agg-read_bw.log"); - __finish_log(agg_io_log[DDIR_WRITE],"agg-write_bw.log"); + __finish_log(agg_io_log[DDIR_READ], "agg-read_bw.log"); + __finish_log(agg_io_log[DDIR_WRITE], + "agg-write_bw.log"); } } - fio_sem_remove(startup_sem); + fio_mutex_remove(startup_mutex); + fio_mutex_remove(writeout_mutex); return exit_value; }