genfio: Splitting gen_template in 2 parts
[fio.git] / backend.c
index 5fc0fc86f7ae7ab94abd7317cba44c194850c0d1..b9c1c1230585cc41b2a78eb8e218ebe58e6d87ea 100644 (file)
--- a/backend.c
+++ b/backend.c
@@ -61,14 +61,14 @@ static struct flist_head *cgroup_list;
 static char *cgroup_mnt;
 static int exit_value;
 static volatile int fio_abort;
+static unsigned int nr_process = 0;
+static unsigned int nr_thread = 0;
 
 struct io_log *agg_io_log[DDIR_RWDIR_CNT];
 
 int groupid = 0;
 unsigned int thread_number = 0;
 unsigned int stat_number = 0;
-unsigned int nr_process = 0;
-unsigned int nr_thread = 0;
 int shm_id = 0;
 int temp_stall_ts;
 unsigned long done_secs = 0;
@@ -238,8 +238,6 @@ static int check_min_rate(struct thread_data *td, struct timeval *now,
  */
 static void cleanup_pending_aio(struct thread_data *td)
 {
-       struct flist_head *entry, *n;
-       struct io_u *io_u;
        int r;
 
        /*
@@ -253,18 +251,11 @@ static void cleanup_pending_aio(struct thread_data *td)
         * 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);
+               struct io_u *io_u;
+               int i;
 
-                       /*
-                        * 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 {
+               io_u_qiter(&td->io_u_all, io_u, i) {
+                       if (io_u->flags & IO_U_F_FLIGHT) {
                                r = td->io_ops->cancel(td, io_u);
                                if (!r)
                                        put_io_u(td, io_u);
@@ -822,6 +813,8 @@ sync_done:
                        if (!(b % td->o.thinktime_blocks)) {
                                int left;
 
+                               io_u_quiesce(td);
+
                                if (td->o.thinktime_spin)
                                        usec_spin(td->o.thinktime_spin);
 
@@ -835,7 +828,7 @@ sync_done:
        check_update_rusage(td);
 
        if (td->trim_entries)
-               log_err("fio: %d trim entries leaked?\n", td->trim_entries);
+               log_err("fio: %lu trim entries leaked?\n", td->trim_entries);
 
        if (td->o.fill_device && td->error == ENOSPC) {
                td->error = 0;
@@ -876,13 +869,9 @@ sync_done:
 
 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);
+       while ((io_u = io_u_qpop(&td->io_u_freelist)) != NULL) {
 
                if (td->io_ops->io_u_free)
                        td->io_ops->io_u_free(td, io_u);
@@ -891,6 +880,10 @@ static void cleanup_io_u(struct thread_data *td)
        }
 
        free_io_mem(td);
+
+       io_u_rexit(&td->io_u_requeues);
+       io_u_qexit(&td->io_u_freelist);
+       io_u_qexit(&td->io_u_all);
 }
 
 static int init_io_u(struct thread_data *td)
@@ -898,7 +891,7 @@ static int init_io_u(struct thread_data *td)
        struct io_u *io_u;
        unsigned int max_bs, min_write;
        int cl_align, i, max_units;
-       int data_xfer = 1;
+       int data_xfer = 1, err;
        char *p;
 
        max_units = td->o.iodepth;
@@ -910,6 +903,25 @@ static int init_io_u(struct thread_data *td)
        if ((td->io_ops->flags & FIO_NOIO) || !(td_read(td) || td_write(td)))
                data_xfer = 0;
 
+       err = 0;
+       err += io_u_rinit(&td->io_u_requeues, td->o.iodepth);
+       err += io_u_qinit(&td->io_u_freelist, td->o.iodepth);
+       err += io_u_qinit(&td->io_u_all, td->o.iodepth);
+
+       if (err) {
+               log_err("fio: failed setting up IO queues\n");
+               return 1;
+       }
+
+       /*
+        * if we may later need to do address alignment, then add any
+        * possible adjustment here so that we don't cause a buffer
+        * overflow later. this adjustment may be too much if we get
+        * lucky and the allocator gives us an aligned address.
+        */
+       if (td->o.odirect || td->o.mem_align || (td->io_ops->flags & FIO_RAWIO))
+               td->orig_buffer_size += page_mask + td->o.mem_align;
+
        if (td->o.mem_type == MEM_SHMHUGE || td->o.mem_type == MEM_MMAPHUGE) {
                unsigned long bs;
 
@@ -947,7 +959,7 @@ static int init_io_u(struct thread_data *td)
 
                io_u = ptr;
                memset(io_u, 0, sizeof(*io_u));
-               INIT_FLIST_HEAD(&io_u->list);
+               INIT_FLIST_HEAD(&io_u->verify_list);
                dprint(FD_MEM, "io_u alloc %p, index %u\n", io_u, i);
 
                if (data_xfer) {
@@ -967,7 +979,13 @@ static int init_io_u(struct thread_data *td)
 
                io_u->index = i;
                io_u->flags = IO_U_F_FREE;
-               flist_add(&io_u->list, &td->io_u_freelist);
+               io_u_qpush(&td->io_u_freelist, io_u);
+
+               /*
+                * io_u never leaves this stack, used for iteration of all
+                * io_u buffers.
+                */
+               io_u_qpush(&td->io_u_all, io_u);
 
                if (td->io_ops->io_u_init) {
                        int ret = td->io_ops->io_u_init(td, io_u);
@@ -1068,14 +1086,15 @@ static int keep_running(struct thread_data *td)
        return 0;
 }
 
-static int exec_string(const char *string)
+static int exec_string(struct thread_options *o, const char *string, const char *mode)
 {
-       int ret, newlen = strlen(string) + 1 + 8;
+       int ret, newlen = strlen(string) + strlen(o->name) + strlen(mode) + 9 + 1;
        char *str;
 
        str = malloc(newlen);
-       sprintf(str, "sh -c %s", string);
+       sprintf(str, "%s &> %s.%s.txt", string, o->name, mode);
 
+       log_info("%s : Saving output of %s in %s.%s.txt\n",o->name, mode, o->name, mode);
        ret = system(str);
        if (ret == -1)
                log_err("fio: exec of cmd <%s> failed\n", str);
@@ -1092,22 +1111,24 @@ static void *thread_main(void *data)
 {
        unsigned long long elapsed;
        struct thread_data *td = data;
+       struct thread_options *o = &td->o;
        pthread_condattr_t attr;
        int clear_state;
+       int ret;
 
-       if (!td->o.use_thread) {
+       if (!o->use_thread) {
                setsid();
                td->pid = getpid();
        } else
                td->pid = gettid();
 
-       fio_local_clock_init(td->o.use_thread);
+       fio_local_clock_init(o->use_thread);
 
        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);
+       if (is_backend)
+               fio_server_send_start(td);
+
        INIT_FLIST_HEAD(&td->io_log_list);
        INIT_FLIST_HEAD(&td->io_hist_list);
        INIT_FLIST_HEAD(&td->verify_list);
@@ -1132,16 +1153,17 @@ static void *thread_main(void *data)
         * eating a file descriptor
         */
        fio_mutex_remove(td->mutex);
+       td->mutex = NULL;
 
        /*
         * A new gid requires privilege, so we need to do this before setting
         * the uid.
         */
-       if (td->o.gid != -1U && setgid(td->o.gid)) {
+       if (o->gid != -1U && setgid(o->gid)) {
                td_verror(td, errno, "setgid");
                goto err;
        }
-       if (td->o.uid != -1U && setuid(td->o.uid)) {
+       if (o->uid != -1U && setuid(o->uid)) {
                td_verror(td, errno, "setuid");
                goto err;
        }
@@ -1150,21 +1172,24 @@ static void *thread_main(void *data)
         * 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 (o->gtod_cpu)
+               fio_cpu_clear(&o->cpumask, 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;
+       if (o->cpumask_set) {
+               ret = fio_setaffinity(td->pid, o->cpumask);
+               if (ret == -1) {
+                       td_verror(td, errno, "cpu_set_affinity");
+                       goto err;
+               }
        }
 
 #ifdef CONFIG_LIBNUMA
        /* numa node setup */
-       if (td->o.numa_cpumask_set || td->o.numa_memmask_set) {
+       if (o->numa_cpumask_set || o->numa_memmask_set) {
                int ret;
 
                if (numa_available() < 0) {
@@ -1172,8 +1197,8 @@ static void *thread_main(void *data)
                        goto err;
                }
 
-               if (td->o.numa_cpumask_set) {
-                       ret = numa_run_on_node_mask(td->o.numa_cpunodesmask);
+               if (o->numa_cpumask_set) {
+                       ret = numa_run_on_node_mask(o->numa_cpunodesmask);
                        if (ret == -1) {
                                td_verror(td, errno, \
                                        "numa_run_on_node_mask failed\n");
@@ -1181,20 +1206,20 @@ static void *thread_main(void *data)
                        }
                }
 
-               if (td->o.numa_memmask_set) {
+               if (o->numa_memmask_set) {
 
-                       switch (td->o.numa_mem_mode) {
+                       switch (o->numa_mem_mode) {
                        case MPOL_INTERLEAVE:
-                               numa_set_interleave_mask(td->o.numa_memnodesmask);
+                               numa_set_interleave_mask(o->numa_memnodesmask);
                                break;
                        case MPOL_BIND:
-                               numa_set_membind(td->o.numa_memnodesmask);
+                               numa_set_membind(o->numa_memnodesmask);
                                break;
                        case MPOL_LOCAL:
                                numa_set_localalloc();
                                break;
                        case MPOL_PREFERRED:
-                               numa_set_preferred(td->o.numa_mem_prefer_node);
+                               numa_set_preferred(o->numa_mem_prefer_node);
                                break;
                        case MPOL_DEFAULT:
                        default:
@@ -1218,29 +1243,30 @@ static void *thread_main(void *data)
        if (init_io_u(td))
                goto err;
 
-       if (td->o.verify_async && verify_async_init(td))
+       if (o->verify_async && verify_async_init(td))
                goto err;
 
-       if (td->ioprio_set) {
-               if (ioprio_set(IOPRIO_WHO_PROCESS, 0, td->ioprio) == -1) {
+       if (o->ioprio) {
+               ret = ioprio_set(IOPRIO_WHO_PROCESS, 0, o->ioprio_class, o->ioprio);
+               if (ret == -1) {
                        td_verror(td, errno, "ioprio_set");
                        goto err;
                }
        }
 
-       if (td->o.cgroup && cgroup_setup(td, cgroup_list, &cgroup_mnt))
+       if (o->cgroup && cgroup_setup(td, cgroup_list, &cgroup_mnt))
                goto err;
 
        errno = 0;
-       if (nice(td->o.nice) == -1 && errno != 0) {
+       if (nice(o->nice) == -1 && errno != 0) {
                td_verror(td, errno, "nice");
                goto err;
        }
 
-       if (td->o.ioscheduler && switch_ioscheduler(td))
+       if (o->ioscheduler && switch_ioscheduler(td))
                goto err;
 
-       if (!td->o.create_serialize && setup_files(td))
+       if (!o->create_serialize && setup_files(td))
                goto err;
 
        if (td_io_init(td))
@@ -1249,12 +1275,10 @@ static void *thread_main(void *data)
        if (init_random_map(td))
                goto err;
 
-       if (td->o.exec_prerun) {
-               if (exec_string(td->o.exec_prerun))
-                       goto err;
-       }
+       if (o->exec_prerun && exec_string(o, o->exec_prerun, (const char *)"prerun"))
+               goto err;
 
-       if (td->o.pre_read) {
+       if (o->pre_read) {
                if (pre_read_files(td) < 0)
                        goto err;
        }
@@ -1272,8 +1296,8 @@ static void *thread_main(void *data)
                memcpy(&td->iops_sample_time, &td->start, sizeof(td->start));
                memcpy(&td->tv_cache, &td->start, sizeof(td->start));
 
-               if (td->o.ratemin[DDIR_READ] || td->o.ratemin[DDIR_WRITE] ||
-                               td->o.ratemin[DDIR_TRIM]) {
+               if (o->ratemin[DDIR_READ] || o->ratemin[DDIR_WRITE] ||
+                               o->ratemin[DDIR_TRIM]) {
                        memcpy(&td->lastrate[DDIR_READ], &td->bw_sample_time,
                                                sizeof(td->bw_sample_time));
                        memcpy(&td->lastrate[DDIR_WRITE], &td->bw_sample_time,
@@ -1307,8 +1331,8 @@ static void *thread_main(void *data)
                if (td->error || td->terminate)
                        break;
 
-               if (!td->o.do_verify ||
-                   td->o.verify == VERIFY_NONE ||
+               if (!o->do_verify ||
+                   o->verify == VERIFY_NONE ||
                    (td->io_ops->flags & FIO_UNIDIR))
                        continue;
 
@@ -1337,44 +1361,44 @@ static void *thread_main(void *data)
 
        fio_mutex_down(writeout_mutex);
        if (td->bw_log) {
-               if (td->o.bw_log_file) {
+               if (o->bw_log_file) {
                        finish_log_named(td, td->bw_log,
-                                               td->o.bw_log_file, "bw");
+                                               o->bw_log_file, "bw");
                } else
                        finish_log(td, td->bw_log, "bw");
        }
        if (td->lat_log) {
-               if (td->o.lat_log_file) {
+               if (o->lat_log_file) {
                        finish_log_named(td, td->lat_log,
-                                               td->o.lat_log_file, "lat");
+                                               o->lat_log_file, "lat");
                } else
                        finish_log(td, td->lat_log, "lat");
        }
        if (td->slat_log) {
-               if (td->o.lat_log_file) {
+               if (o->lat_log_file) {
                        finish_log_named(td, td->slat_log,
-                                               td->o.lat_log_file, "slat");
+                                               o->lat_log_file, "slat");
                } else
                        finish_log(td, td->slat_log, "slat");
        }
        if (td->clat_log) {
-               if (td->o.lat_log_file) {
+               if (o->lat_log_file) {
                        finish_log_named(td, td->clat_log,
-                                               td->o.lat_log_file, "clat");
+                                               o->lat_log_file, "clat");
                } else
                        finish_log(td, td->clat_log, "clat");
        }
        if (td->iops_log) {
-               if (td->o.iops_log_file) {
+               if (o->iops_log_file) {
                        finish_log_named(td, td->iops_log,
-                                               td->o.iops_log_file, "iops");
+                                               o->iops_log_file, "iops");
                } else
                        finish_log(td, td->iops_log, "iops");
        }
 
        fio_mutex_up(writeout_mutex);
-       if (td->o.exec_postrun)
-               exec_string(td->o.exec_postrun);
+       if (o->exec_postrun)
+               exec_string(o, o->exec_postrun, (const char *)"postrun");
 
        if (exitall_on_terminate)
                fio_terminate_threads(td->groupid);
@@ -1384,7 +1408,7 @@ err:
                log_info("fio: pid=%d, err=%d/%s\n", (int) td->pid, td->error,
                                                        td->verror);
 
-       if (td->o.verify_async)
+       if (o->verify_async)
                verify_async_exit(td);
 
        close_and_free_files(td);
@@ -1392,8 +1416,8 @@ err:
        close_ioengine(td);
        cgroup_shutdown(td, &cgroup_mnt);
 
-       if (td->o.cpumask_set) {
-               int ret = fio_cpuset_exit(&td->o.cpumask);
+       if (o->cpumask_set) {
+               int ret = fio_cpuset_exit(&o->cpumask);
 
                td_verror(td, ret, "fio_cpuset_exit");
        }
@@ -1401,7 +1425,7 @@ err:
        /*
         * do this very late, it will log file closing as well
         */
-       if (td->o.write_iolog_file)
+       if (o->write_iolog_file)
                write_iolog_close(td);
 
        fio_mutex_remove(td->rusage_sem);
@@ -1535,12 +1559,19 @@ reaped:
                        exit_value++;
 
                done_secs += mtime_since_now(&td->epoch) / 1000;
+               profile_td_exit(td);
        }
 
        if (*nr_running == cputhreads && !pending && realthreads)
                fio_terminate_threads(TERMINATE_ALL);
 }
 
+static void do_usleep(unsigned int usecs)
+{
+       check_for_running_stats();
+       usleep(usecs);
+}
+
 /*
  * Main function for kicking off and reaping jobs, as needed.
  */
@@ -1557,6 +1588,14 @@ static void run_threads(void)
 
        set_sig_handlers();
 
+       nr_thread = nr_process = 0;
+       for_each_td(td, i) {
+               if (td->o.use_thread)
+                       nr_thread++;
+               else
+                       nr_process++;
+       }
+
        if (output_format == FIO_OUTPUT_NORMAL) {
                log_info("Starting ");
                if (nr_thread)
@@ -1711,7 +1750,7 @@ static void run_threads(void)
                        if (mtime_since_now(&this_start) > JOB_START_TIMEOUT)
                                break;
 
-                       usleep(100000);
+                       do_usleep(100000);
 
                        for (i = 0; i < this_jobs; i++) {
                                td = map[i];
@@ -1762,21 +1801,13 @@ static void run_threads(void)
 
                reap_threads(&nr_running, &t_rate, &m_rate);
 
-               if (todo) {
-                       if (is_backend)
-                               fio_server_idle_loop();
-                       else
-                               usleep(100000);
-               }
+               if (todo)
+                       do_usleep(100000);
        }
 
        while (nr_running) {
                reap_threads(&nr_running, &t_rate, &m_rate);
-
-               if (is_backend)
-                       fio_server_idle_loop();
-               else
-                       usleep(10000);
+               do_usleep(10000);
        }
 
        fio_idle_prof_stop();
@@ -1859,9 +1890,9 @@ int fio_backend(void)
                return 0;
 
        if (write_bw_log) {
-               setup_log(&agg_io_log[DDIR_READ], 0);
-               setup_log(&agg_io_log[DDIR_WRITE], 0);
-               setup_log(&agg_io_log[DDIR_TRIM], 0);
+               setup_log(&agg_io_log[DDIR_READ], 0, IO_LOG_TYPE_BW);
+               setup_log(&agg_io_log[DDIR_WRITE], 0, IO_LOG_TYPE_BW);
+               setup_log(&agg_io_log[DDIR_TRIM], 0, IO_LOG_TYPE_BW);
        }
 
        startup_mutex = fio_mutex_init(FIO_MUTEX_LOCKED);
@@ -1872,6 +1903,7 @@ int fio_backend(void)
                return 1;
 
        set_genesis_time();
+       stat_init();
        create_disk_util_thread();
 
        cgroup_list = smalloc(sizeof(*cgroup_list));
@@ -1901,5 +1933,6 @@ int fio_backend(void)
        fio_mutex_remove(startup_mutex);
        fio_mutex_remove(writeout_mutex);
        fio_mutex_remove(disk_thread_mutex);
+       stat_exit();
        return exit_value;
 }