configure: attempt to link against tcmalloc by default if available
[fio.git] / fio.c
diff --git a/fio.c b/fio.c
index 3e4dbb7..f19db1b 100644 (file)
--- a/fio.c
+++ b/fio.c
@@ -2,7 +2,7 @@
  * fio - the flexible io tester
  *
  * Copyright (C) 2005 Jens Axboe <axboe@suse.de>
- * Copyright (C) 2006 Jens Axboe <axboe@kernel.dk>
+ * Copyright (C) 2006-2012 Jens Axboe <axboe@kernel.dk>
  *
  * The license below covers all files distributed with fio unless otherwise
  * noted in the file itself.
  *
  *  You should have received a copy of the GNU General Public License
  *  along with this program; if not, write to the Free Software
- *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  *
  */
-#include <unistd.h>
-#include <fcntl.h>
-#include <string.h>
-#include <limits.h>
-#include <signal.h>
-#include <time.h>
-#include <locale.h>
-#include <assert.h>
-#include <time.h>
-#include <sys/stat.h>
-#include <sys/wait.h>
-#include <sys/ipc.h>
-#include <sys/shm.h>
-#include <sys/mman.h>
-
 #include "fio.h"
-#include "hash.h"
-#include "smalloc.h"
-#include "verify.h"
-#include "trim.h"
-#include "diskutil.h"
-#include "cgroup.h"
-#include "profile.h"
-#include "lib/rand.h"
-#include "memalign.h"
-#include "server.h"
-
-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_mutex *startup_mutex;
-static struct fio_mutex *writeout_mutex;
-static volatile int fio_abort;
-static int exit_value;
-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 JOB_START_TIMEOUT      (5 * 1000)
-
-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;
-}
-
-void fio_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->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_SIGTERM))
-                                       kill(td->pid, SIGTERM);
-                       }
-               }
-       }
-}
-
-static void sig_int(int sig)
-{
-       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 *disk_thread_main(void *data)
-{
-       fio_mutex_up(startup_mutex);
-
-       while (threads) {
-               usleep(DISK_UTIL_MSEC * 1000);
-               if (!threads)
-                       break;
-               update_io_ticks();
-
-               if (is_backend)
-                       fio_server_send_status();
-               else
-                       print_thread_status();
-       }
-
-       return NULL;
-}
-
-static int create_disk_util_thread(void)
-{
-       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_int;
-       act.sa_flags = SA_RESTART;
-       sigaction(SIGINT, &act, NULL);
-
-       memset(&act, 0, sizeof(act));
-       act.sa_handler = sig_int;
-       act.sa_flags = SA_RESTART;
-       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 fio_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;
-
-       assert(ddir_rw(ddir));
-
-       if (!td->o.ratemin[ddir] && !td->o.rate_iops_min[ddir])
-               return 0;
-
-       /*
-        * allow a 2 second settle period in the beginning
-        */
-       if (mtime_since(&td->start, now) < 2000)
-               return 0;
-
-       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[ddir] || td->rate_blocks[ddir]) {
-               spent = mtime_since(&td->lastrate[ddir], now);
-               if (spent < td->o.ratecycle)
-                       return 0;
-
-               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 {
-                       /*
-                        * 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[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->o.timeout)
-               return 0;
-       if (mtime_since(&td->epoch, t) >= td->o.timeout * 1000)
-               return 1;
-
-       return 0;
-}
-
-/*
- * When job exits, we can cancel the in-flight IO if we are using async
- * io. Attempt to do so.
- */
-static void cleanup_pending_aio(struct thread_data *td)
-{
-       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, NULL);
-       if (r < 0)
-               return;
-
-       /*
-        * now cancel remaining active events
-        */
-       if (td->io_ops->cancel) {
-               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
-                        * means someone leaked an io_u. complain but fix
-                        * it up, so we don't stall here.
-                        */
-                       if ((io_u->flags & IO_U_F_FLIGHT) == 0) {
-                               log_err("fio: non-busy IO on busy list\n");
-                               put_io_u(td, io_u);
-                       } else {
-                               r = td->io_ops->cancel(td, io_u);
-                               if (!r)
-                                       put_io_u(td, io_u);
-                       }
-               }
-       }
-
-       if (td->cur_depth)
-               r = io_u_queued_complete(td, td->cur_depth, NULL);
-}
-
-/*
- * Helper to handle the final sync of a file. Works just like the normal
- * io path, just does everything sync.
- */
-static int fio_io_sync(struct thread_data *td, struct fio_file *f)
+int main(int argc, char *argv[], char *envp[])
 {
-       struct io_u *io_u = __get_io_u(td);
-       int ret;
+       int ret = 1;
 
-       if (!io_u)
-               return 1;
-
-       io_u->ddir = DDIR_SYNC;
-       io_u->file = f;
+       compiletime_assert(TD_NR <= TD_ENG_FLAG_SHIFT, "TD_ENG_FLAG_SHIFT");
 
-       if (td_io_prep(td, io_u)) {
-               put_io_u(td, io_u);
+       if (initialize_fio(envp))
                return 1;
-       }
-
-requeue:
-       ret = td_io_queue(td, io_u);
-       if (ret < 0) {
-               td_verror(td, io_u->error, "td_io_queue");
-               put_io_u(td, io_u);
-               return 1;
-       } else if (ret == FIO_Q_QUEUED) {
-               if (io_u_queued_complete(td, 1, NULL) < 0)
-                       return 1;
-       } else if (ret == FIO_Q_COMPLETED) {
-               if (io_u->error) {
-                       td_verror(td, io_u->error, "td_io_queue");
-                       return 1;
-               }
-
-               if (io_u_sync_complete(td, io_u, NULL) < 0)
-                       return 1;
-       } else if (ret == FIO_Q_BUSY) {
-               if (td_io_commit(td))
-                       return 1;
-               goto 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)
-               __update_tv_cache(td);
-}
-
-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;
-}
+#if !defined(CONFIG_GETTIMEOFDAY) && !defined(CONFIG_CLOCK_GETTIME)
+#error "No available clock source!"
+#endif
 
-/*
- * The main verify engine. Runs over the writes we previously submitted,
- * reads the blocks back in, and checks the crc/md5 of the data.
- */
-static void do_verify(struct thread_data *td)
-{
-       struct fio_file *f;
-       struct io_u *io_u;
-       int ret, min_events;
-       unsigned int i;
+       if (fio_server_create_sk_key())
+               goto done;
 
-       dprint(FD_VERIFY, "starting loop\n");
+       if (parse_options(argc, argv))
+               goto done_key;
 
        /*
-        * sync io first and invalidate cache, to make sure we really
-        * read from disk.
+        * line buffer stdout to avoid output lines from multiple
+        * threads getting mixed
         */
-       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))
-                       break;
-       }
-
-       if (td->error)
-               return;
-
-       td_set_runstate(td, TD_VERIFYING);
-
-       io_u = NULL;
-       while (!td->terminate) {
-               int ret2, full;
-
-               update_tv_cache(td);
-
-               if (runtime_exceeded(td, &td->tv_cache)) {
-                       __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;
-
-               if (get_next_verify(td, io_u)) {
-                       put_io_u(td, io_u);
-                       break;
-               }
-
-               if (td_io_prep(td, io_u)) {
-                       put_io_u(td, io_u);
-                       break;
-               }
-
-               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) {
-                               ret = -io_u->error;
-                               clear_io_u(td, io_u);
-                       } else if (io_u->resid) {
-                               int bytes = io_u->xfer_buflen - io_u->resid;
-
-                               /*
-                                * zero read, fail
-                                */
-                               if (!bytes) {
-                                       td_verror(td, EIO, "full resid");
-                                       put_io_u(td, io_u);
-                                       break;
-                               }
+       setvbuf(stdout, NULL, _IOLBF, 0);
 
-                               io_u->xfer_buflen = io_u->resid;
-                               io_u->xfer_buf += bytes;
-                               io_u->offset += bytes;
+       fio_time_init();
 
-                               if (ddir_rw(io_u->ddir))
-                                       td->ts.short_io_u[io_u->ddir]++;
+       if (nr_clients) {
+               set_genesis_time();
 
-                               f = io_u->file;
-                               if (io_u->offset == f->real_file_size)
-                                       goto sync_done;
-
-                               requeue_io_u(td, &io_u);
-                       } else {
-sync_done:
-                               ret = io_u_sync_complete(td, io_u, NULL);
-                               if (ret < 0)
-                                       break;
-                       }
-                       continue;
-               case FIO_Q_QUEUED:
-                       break;
-               case FIO_Q_BUSY:
-                       requeue_io_u(td, &io_u);
-                       ret2 = td_io_commit(td);
-                       if (ret2 < 0)
-                               ret = ret2;
-                       break;
-               default:
-                       assert(ret < 0);
-                       td_verror(td, -ret, "td_io_queue");
-                       break;
-               }
-
-               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. Note that we can get BUSY even
-                * without IO queued, if the system is resource starved.
-                */
-               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 && td->o.iodepth_batch_complete != 0)
-                               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));
-               }
-               if (ret < 0)
-                       break;
-       }
-
-       if (!td->error) {
-               min_events = td->cur_depth;
-
-               if (min_events)
-                       ret = io_u_queued_complete(td, min_events, NULL);
+               if (fio_start_all_clients())
+                       goto done_key;
+               ret = fio_handle_clients(&fio_client_ops);
        } else
-               cleanup_pending_aio(td);
-
-       td_set_runstate(td, TD_RUNNING);
-
-       dprint(FD_VERIFY, "exiting loop\n");
-}
-
-/*
- * 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)
-{
-       unsigned int i;
-       int ret = 0;
-
-       if (in_ramp_time(td))
-               td_set_runstate(td, TD_RAMP);
-       else
-               td_set_runstate(td, TD_RUNNING);
-
-       while ( (td->o.read_iolog_file && !flist_empty(&td->io_log_list)) ||
-               (!flist_empty(&td->trim_list)) ||
-               ((td->this_io_bytes[0] + td->this_io_bytes[1]) < td->o.size) ) {
-               struct timeval comp_time;
-               unsigned long bytes_done[2] = { 0, 0 };
-               int min_evts = 0;
-               struct io_u *io_u;
-               int ret2, full;
-
-               if (td->terminate)
-                       break;
-
-               update_tv_cache(td);
-
-               if (runtime_exceeded(td, &td->tv_cache)) {
-                       __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;
-
-               /*
-                * Add verification end_io handler, if asked to verify
-                * a previously written file.
-                */
-               if (td->o.verify != VERIFY_NONE && io_u->ddir == DDIR_READ &&
-                   !td_rw(td)) {
-                       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) {
-                               ret = -io_u->error;
-                               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;
-
-                               if (ddir_rw(io_u->ddir))
-                                       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 {
-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:
-                       /*
-                        * if the engine doesn't have a commit hook,
-                        * the io_u is really queued. if it does have such
-                        * a hook, it has to call io_u_queued() itself.
-                        */
-                       if (td->io_ops->commit == NULL)
-                               io_u_queued(td, io_u);
-                       break;
-               case FIO_Q_BUSY:
-                       requeue_io_u(td, &io_u);
-                       ret2 = td_io_commit(td);
-                       if (ret2 < 0)
-                               ret = ret2;
-                       break;
-               default:
-                       assert(ret < 0);
-                       put_io_u(td, io_u);
-                       break;
-               }
-
-               if (break_on_this_error(td, &ret))
-                       break;
-
-               /*
-                * 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 && 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 && td->o.iodepth_batch_complete != 0)
-                               min_evts = 1;
-
-                       if (__should_check_rate(td, 0) ||
-                           __should_check_rate(td, 1))
-                               fio_gettime(&comp_time, NULL);
-
-                       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 (ret < 0)
-                       break;
-               if (!(bytes_done[0] + bytes_done[1]))
-                       continue;
-
-               if (!in_ramp_time(td) && should_check_rate(td, bytes_done)) {
-                       if (check_min_rate(td, &comp_time, bytes_done)) {
-                               if (exitall_on_terminate)
-                                       fio_terminate_threads(td->groupid);
-                               td_verror(td, EIO, "check_min_rate");
-                               break;
-                       }
-               }
-
-               if (td->o.thinktime) {
-                       unsigned long long b;
-
-                       b = td->io_blocks[0] + td->io_blocks[1];
-                       if (!(b % td->o.thinktime_blocks)) {
-                               int left;
-
-                               if (td->o.thinktime_spin)
-                                       usec_spin(td->o.thinktime_spin);
-
-                               left = td->o.thinktime - td->o.thinktime_spin;
-                               if (left)
-                                       usec_sleep(td, left);
-                       }
-               }
-       }
-
-       if (td->trim_entries)
-               printf("trim entries %ld\n", td->trim_entries);
-
-       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, 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);
-
-                       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 flist_head *entry, *n;
-       struct io_u *io_u;
-
-       flist_for_each_safe(entry, n, &td->io_u_freelist) {
-               io_u = flist_entry(entry, struct io_u, list);
-
-               flist_del(&io_u->list);
-               fio_memfree(io_u, sizeof(*io_u));
-       }
-
-       free_io_mem(td);
-}
-
-static int init_io_u(struct thread_data *td)
-{
-       struct io_u *io_u;
-       unsigned int max_bs;
-       int cl_align, i, max_units;
-       char *p;
-
-       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->o.mem_type == MEM_SHMHUGE || td->o.mem_type == MEM_MMAPHUGE) {
-               unsigned long bs;
-
-               bs = td->orig_buffer_size + td->o.hugepage_size - 1;
-               td->orig_buffer_size = bs & ~(td->o.hugepage_size - 1);
-       }
-
-       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;
-
-       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;
-
-       cl_align = os_cache_line_size();
-
-       for (i = 0; i < max_units; i++) {
-               void *ptr;
-
-               if (td->terminate)
-                       return 1;
-
-               ptr = fio_memalign(cl_align, sizeof(*io_u));
-               if (!ptr) {
-                       log_err("fio: unable to allocate aligned memory\n");
-                       break;
-               }
-
-               io_u = ptr;
-               memset(io_u, 0, sizeof(*io_u));
-               INIT_FLIST_HEAD(&io_u->list);
-               dprint(FD_MEM, "io_u alloc %p, index %u\n", io_u, i);
-
-               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))
-                               io_u_fill_buffer(td, io_u, max_bs);
-                       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, 0, 0);
-                       }
-               }
-
-               io_u->index = i;
-               io_u->flags = IO_U_F_FREE;
-               flist_add(&io_u->list, &td->io_u_freelist);
-       }
-
-       return 0;
-}
-
-static int switch_ioscheduler(struct thread_data *td)
-{
-       char tmp[256], tmp2[128];
-       FILE *f;
-       int ret;
-
-       if (td->io_ops->flags & FIO_DISKLESSIO)
-               return 0;
-
-       sprintf(tmp, "%s/queue/scheduler", td->sysfs_root);
-
-       f = fopen(tmp, "r+");
-       if (!f) {
-               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->o.ioscheduler, strlen(td->o.ioscheduler), 1, f);
-       if (ferror(f) || ret != 1) {
-               td_verror(td, errno, "fwrite");
-               fclose(f);
-               return 1;
-       }
-
-       rewind(f);
-
-       /*
-        * Read back and check that the selected scheduler is now the default.
-        */
-       ret = fread(tmp, 1, sizeof(tmp), f);
-       if (ferror(f) || ret < 0) {
-               td_verror(td, errno, "fread");
-               fclose(f);
-               return 1;
-       }
-
-       sprintf(tmp2, "[%s]", td->o.ioscheduler);
-       if (!strstr(tmp, tmp2)) {
-               log_err("fio: io scheduler %s not found\n", td->o.ioscheduler);
-               td_verror(td, EINVAL, "iosched_switch");
-               fclose(f);
-               return 1;
-       }
-
-       fclose(f);
-       return 0;
-}
+               ret = fio_backend(NULL);
 
-static int keep_running(struct thread_data *td)
-{
-       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->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;
-       td->rate_blocks[0] = td->rate_blocks[1] = 0;
-
-       td->last_was_sync = 0;
-
-       /*
-        * reset file done count if we are to start over
-        */
-       if (td->o.time_based || td->o.loops)
-               td->nr_done_files = 0;
-}
-
-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);
-       td->ts.runtime[0] = 0;
-       td->ts.runtime[1] = 0;
-       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);
-
-       /*
-        * Set the same seed to get repeatable runs
-        */
-       td_fill_rand_seeds(td);
-}
-
-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);
+done_key:
+       fio_server_destroy_sk_key();
+done:
+       deinitialize_fio();
        return ret;
 }
-
-/*
- * Entry point for the thread based jobs. The process based jobs end up
- * here as well, after a little setup.
- */
-static void *thread_main(void *data)
-{
-       unsigned long long elapsed;
-       struct thread_data *td = data;
-       pthread_condattr_t attr;
-       int clear_state;
-
-       if (!td->o.use_thread) {
-               setsid();
-               td->pid = getpid();
-       } else
-               td->pid = gettid();
-
-       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);
-       INIT_FLIST_HEAD(&td->trim_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);
-
-       /*
-        * 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 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;
-       }
-
-       /*
-        * 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 (td->o.verify_async && verify_async_init(td))
-               goto err;
-
-       if (td->ioprio_set) {
-               if (ioprio_set(IOPRIO_WHO_PROCESS, 0, td->ioprio) == -1) {
-                       td_verror(td, errno, "ioprio_set");
-                       goto err;
-               }
-       }
-
-       if (td->o.cgroup_weight && cgroup_setup(td, cgroup_list, &cgroup_mnt))
-               goto err;
-
-       if (nice(td->o.nice) == -1) {
-               td_verror(td, errno, "nice");
-               goto err;
-       }
-
-       if (td->o.ioscheduler && switch_ioscheduler(td))
-               goto err;
-
-       if (!td->o.create_serialize && setup_files(td))
-               goto err;
-
-       if (td_io_init(td))
-               goto err;
-
-       if (init_random_map(td))
-               goto err;
-
-       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);
-       getrusage(RUSAGE_SELF, &td->ru_start);
-
-       clear_state = 0;
-       while (keep_running(td)) {
-               fio_gettime(&td->start, NULL);
-               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->stat_sample_time,
-                                                       sizeof(td->lastrate));
-
-               if (clear_state)
-                       clear_io_state(td);
-
-               prune_io_piece_log(td);
-
-               do_io(td);
-
-               clear_state = 1;
-
-               if (td_read(td) && td->io_bytes[DDIR_READ]) {
-                       elapsed = utime_since_now(&td->start);
-                       td->ts.runtime[DDIR_READ] += elapsed;
-               }
-               if (td_write(td) && td->io_bytes[DDIR_WRITE]) {
-                       elapsed = utime_since_now(&td->start);
-                       td->ts.runtime[DDIR_WRITE] += elapsed;
-               }
-
-               if (td->error || td->terminate)
-                       break;
-
-               if (!td->o.do_verify ||
-                   td->o.verify == VERIFY_NONE ||
-                   (td->io_ops->flags & FIO_UNIDIR))
-                       continue;
-
-               clear_io_state(td);
-
-               fio_gettime(&td->start, NULL);
-
-               do_verify(td);
-
-               td->ts.runtime[DDIR_READ] += utime_since_now(&td->start);
-
-               if (td->error || td->terminate)
-                       break;
-       }
-
-       update_rusage_stat(td);
-       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->bw_log) {
-               if (td->o.bw_log_file) {
-                       finish_log_named(td, td->bw_log,
-                                               td->o.bw_log_file, "bw");
-               } else
-                       finish_log(td, td->bw_log, "bw");
-       }
-       if (td->lat_log) {
-               if (td->o.lat_log_file) {
-                       finish_log_named(td, td->lat_log,
-                                               td->o.lat_log_file, "lat");
-               } else
-                       finish_log(td, td->lat_log, "lat");
-       }
-       if (td->slat_log) {
-               if (td->o.lat_log_file) {
-                       finish_log_named(td, td->slat_log,
-                                               td->o.lat_log_file, "slat");
-               } else
-                       finish_log(td, td->slat_log, "slat");
-       }
-       if (td->clat_log) {
-               if (td->o.lat_log_file) {
-                       finish_log_named(td, td->clat_log,
-                                               td->o.lat_log_file, "clat");
-               } else
-                       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)
-               fio_terminate_threads(td->groupid);
-
-err:
-       if (td->error)
-               log_info("fio: pid=%d, err=%d/%s\n", (int) td->pid, td->error,
-                                                       td->verror);
-
-       if (td->o.verify_async)
-               verify_async_exit(td);
-
-       close_and_free_files(td);
-       close_ioengine(td);
-       cleanup_io_u(td);
-       cgroup_shutdown(td, &cgroup_mnt);
-
-       if (td->o.cpumask_set) {
-               int ret = fio_cpuset_exit(&td->o.cpumask);
-
-               td_verror(td, ret, "fio_cpuset_exit");
-       }
-
-       /*
-        * 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;
-}
-
-/*
- * We cannot pass the td data into a forked process, so attach the td and
- * pass it to the thread worker.
- */
-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;
-
-               perror("shmat");
-               return __err;
-       }
-#else
-       /*
-        * HP-UX inherits shm mappings?
-        */
-       data = threads;
-#endif
-
-       td = data + offset * sizeof(struct thread_data);
-       ret = thread_main(td);
-       shmdt(data);
-       return (int) (unsigned long) ret;
-}
-
-/*
- * Run over the job map and reap the threads that have exited, if any.
- */
-static void reap_threads(int *nr_running, int *t_rate, int *m_rate)
-{
-       struct thread_data *td;
-       int i, cputhreads, realthreads, pending, status, ret;
-
-       /*
-        * reap exited threads (TD_EXITED -> TD_REAPED)
-        */
-       realthreads = pending = cputhreads = 0;
-       for_each_td(td, i) {
-               int flags = 0;
-
-               /*
-                * ->io_ops is NULL for a thread that has closed its
-                * io engine
-                */
-               if (td->io_ops && !strcmp(td->io_ops->name, "cpuio"))
-                       cputhreads++;
-               else
-                       realthreads++;
-
-               if (!td->pid) {
-                       pending++;
-                       continue;
-               }
-               if (td->runstate == TD_REAPED)
-                       continue;
-               if (td->o.use_thread) {
-                       if (td->runstate == TD_EXITED) {
-                               td_set_runstate(td, TD_REAPED);
-                               goto reaped;
-                       }
-                       continue;
-               }
-
-               flags = WNOHANG;
-               if (td->runstate == TD_EXITED)
-                       flags = 0;
-
-               /*
-                * check if someone quit or got killed in an unusual way
-                */
-               ret = waitpid(td->pid, &status, flags);
-               if (ret < 0) {
-                       if (errno == ECHILD) {
-                               log_err("fio: pid=%d disappeared %d\n",
-                                               (int) td->pid, td->runstate);
-                               td_set_runstate(td, TD_REAPED);
-                               goto reaped;
-                       }
-                       perror("waitpid");
-               } else if (ret == td->pid) {
-                       if (WIFSIGNALED(status)) {
-                               int sig = WTERMSIG(status);
-
-                               if (sig != SIGTERM)
-                                       log_err("fio: pid=%d, got signal=%d\n",
-                                                       (int) td->pid, sig);
-                               td_set_runstate(td, TD_REAPED);
-                               goto reaped;
-                       }
-                       if (WIFEXITED(status)) {
-                               if (WEXITSTATUS(status) && !td->error)
-                                       td->error = WEXITSTATUS(status);
-
-                               td_set_runstate(td, TD_REAPED);
-                               goto reaped;
-                       }
-               }
-
-               /*
-                * thread is not dead, continue
-                */
-               pending++;
-               continue;
-reaped:
-               (*nr_running)--;
-               (*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 && realthreads)
-               fio_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)
-{
-       pthread_attr_t attr;
-       int ret;
-
-       pthread_attr_init(&attr);
-       pthread_attr_setstacksize(&attr, PTHREAD_STACK_MIN);
-       ret = pthread_create(&gtod_thread, &attr, gtod_thread_main, NULL);
-       pthread_attr_destroy(&attr);
-       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.
- */
-static void run_threads(void)
-{
-       struct thread_data *td;
-       unsigned long spent;
-       int i, todo, nr_running, m_rate, t_rate, nr_started;
-
-       if (fio_pin_memory())
-               return;
-
-       if (fio_gtod_offload && fio_start_gtod_thread())
-               return;
-
-       set_sig_handlers();
-
-       if (!terse_output) {
-               log_info("Starting ");
-               if (nr_thread)
-                       log_info("%d thread%s", nr_thread,
-                                               nr_thread > 1 ? "s" : "");
-               if (nr_process) {
-                       if (nr_thread)
-                               printf(" and ");
-                       log_info("%d process%s", nr_process,
-                                               nr_process > 1 ? "es" : "");
-               }
-               log_info("\n");
-               fflush(stdout);
-       }
-
-       todo = thread_number;
-       nr_running = 0;
-       nr_started = 0;
-       m_rate = t_rate = 0;
-
-       for_each_td(td, i) {
-               print_status_init(td->thread_number - 1);
-
-               if (!td->o.create_serialize)
-                       continue;
-
-               /*
-                * do file setup here so it happens sequentially,
-                * we don't want X number of threads getting their
-                * client data interspersed on disk
-                */
-               if (setup_files(td)) {
-                       exit_value++;
-                       if (td->error)
-                               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 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, j) {
-                               if (fio_file_open(f))
-                                       td_io_close_file(td, f);
-                       }
-               }
-       }
-
-       set_genesis_time();
-
-       while (todo) {
-               struct thread_data *map[REAL_MAX_JOBS];
-               struct timeval this_start;
-               int this_jobs = 0, left;
-
-               /*
-                * create threads (TD_NOT_CREATED -> TD_CREATED)
-                */
-               for_each_td(td, i) {
-                       if (td->runstate != TD_NOT_CREATED)
-                               continue;
-
-                       /*
-                        * never got a chance to start, killed by other
-                        * thread for some reason
-                        */
-                       if (td->terminate) {
-                               todo--;
-                               continue;
-                       }
-
-                       if (td->o.start_delay) {
-                               spent = mtime_since_genesis();
-
-                               if (td->o.start_delay * 1000 > spent)
-                                       continue;
-                       }
-
-                       if (td->o.stonewall && (nr_started || nr_running)) {
-                               dprint(FD_PROCESS, "%s: stonewall wait\n",
-                                                       td->o.name);
-                               break;
-                       }
-
-                       init_disk_util(td);
-
-                       /*
-                        * Set state to created. Thread will transition
-                        * to TD_INITIALIZED when it's done setting up.
-                        */
-                       td_set_runstate(td, TD_CREATED);
-                       map[this_jobs++] = td;
-                       nr_started++;
-
-                       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 {
-                               pid_t pid;
-                               dprint(FD_PROCESS, "will fork\n");
-                               pid = fork();
-                               if (!pid) {
-                                       int ret = fork_main(shm_id, i);
-
-                                       _exit(ret);
-                               } else if (i == fio_debug_jobno)
-                                       *fio_debug_jobp = pid;
-                       }
-                       dprint(FD_MUTEX, "wait on startup_mutex\n");
-                       if (fio_mutex_down_timeout(startup_mutex, 10)) {
-                               log_err("fio: job startup hung? exiting.\n");
-                               fio_terminate_threads(TERMINATE_ALL);
-                               fio_abort = 1;
-                               nr_started--;
-                               break;
-                       }
-                       dprint(FD_MUTEX, "done waiting on startup_mutex\n");
-               }
-
-               /*
-                * Wait for the started threads to transition to
-                * TD_INITIALIZED.
-                */
-               fio_gettime(&this_start, NULL);
-               left = this_jobs;
-               while (left && !fio_abort) {
-                       if (mtime_since_now(&this_start) > JOB_START_TIMEOUT)
-                               break;
-
-                       usleep(100000);
-
-                       for (i = 0; i < this_jobs; i++) {
-                               td = map[i];
-                               if (!td)
-                                       continue;
-                               if (td->runstate == TD_INITIALIZED) {
-                                       map[i] = NULL;
-                                       left--;
-                               } else if (td->runstate >= TD_EXITED) {
-                                       map[i] = NULL;
-                                       left--;
-                                       todo--;
-                                       nr_running++; /* work-around... */
-                               }
-                       }
-               }
-
-               if (left) {
-                       log_err("fio: %d jobs failed to start\n", left);
-                       for (i = 0; i < this_jobs; i++) {
-                               td = map[i];
-                               if (!td)
-                                       continue;
-                               kill(td->pid, SIGTERM);
-                       }
-                       break;
-               }
-
-               /*
-                * start created threads (TD_INITIALIZED -> TD_RUNNING).
-                */
-               for_each_td(td, i) {
-                       if (td->runstate != TD_INITIALIZED)
-                               continue;
-
-                       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->o.ratemin[0] + td->o.ratemin[1];
-                       t_rate += td->o.rate[0] + td->o.rate[1];
-                       todo--;
-                       fio_mutex_up(td->mutex);
-               }
-
-               reap_threads(&nr_running, &t_rate, &m_rate);
-
-               if (todo)
-                       usleep(100000);
-       }
-
-       while (nr_running) {
-               reap_threads(&nr_running, &t_rate, &m_rate);
-
-               if (is_backend)
-                       fio_server_idle_loop();
-               else
-                       usleep(10000);
-       }
-
-       update_io_ticks();
-       fio_unpin_memory();
-}
-
-int exec_run(void)
-{
-       if (nr_clients)
-               return fio_handle_clients();
-       if (exec_profile && load_profile(exec_profile))
-               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_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();
-       create_disk_util_thread();
-
-       cgroup_list = smalloc(sizeof(*cgroup_list));
-       INIT_FLIST_HEAD(cgroup_list);
-
-       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");
-               }
-       }
-
-       cgroup_kill(cgroup_list);
-       sfree(cgroup_list);
-       sfree(cgroup_mnt);
-
-       fio_mutex_remove(startup_mutex);
-       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();
-}