Make lockmem a per job option
[fio.git] / backend.c
index 3b42c4df4dd285678cb09433fa7b4d26c7fb2511..5fc0fc86f7ae7ab94abd7317cba44c194850c0d1 100644 (file)
--- a/backend.c
+++ b/backend.c
 #include <sys/stat.h>
 #include <sys/wait.h>
 #include <sys/ipc.h>
-#include <sys/shm.h>
 #include <sys/mman.h>
 
 #include "fio.h"
+#ifndef FIO_NO_HAVE_SHM_H
+#include <sys/shm.h>
+#endif
 #include "hash.h"
 #include "smalloc.h"
 #include "verify.h"
@@ -48,6 +50,8 @@
 #include "lib/rand.h"
 #include "memalign.h"
 #include "server.h"
+#include "lib/getrusage.h"
+#include "idletime.h"
 
 static pthread_t disk_util_thread;
 static struct fio_mutex *disk_thread_mutex;
@@ -62,6 +66,7 @@ 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;
@@ -213,7 +218,7 @@ static int __check_min_rate(struct thread_data *td, struct timeval *now,
 }
 
 static int check_min_rate(struct thread_data *td, struct timeval *now,
-                         unsigned long *bytes_done)
+                         uint64_t *bytes_done)
 {
        int ret = 0;
 
@@ -317,6 +322,21 @@ requeue:
        return 0;
 }
 
+static int fio_file_fsync(struct thread_data *td, struct fio_file *f)
+{
+       int ret;
+
+       if (fio_file_open(f))
+               return fio_io_sync(td, f);
+
+       if (td_io_open_file(td, f))
+               return 1;
+
+       ret = fio_io_sync(td, f);
+       td_io_close_file(td, f);
+       return ret;
+}
+
 static inline void __update_tv_cache(struct thread_data *td)
 {
        fio_gettime(&td->tv_cache, NULL);
@@ -386,12 +406,22 @@ static int break_on_this_error(struct thread_data *td, enum fio_ddir ddir,
        return 0;
 }
 
+static void check_update_rusage(struct thread_data *td)
+{
+       if (td->update_rusage) {
+               td->update_rusage = 0;
+               update_rusage_stat(td);
+               fio_mutex_up(td->rusage_sem);
+       }
+}
+
 /*
  * 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)
+static void do_verify(struct thread_data *td, uint64_t verify_bytes)
 {
+       uint64_t bytes_done[DDIR_RWDIR_CNT] = { 0, 0, 0 };
        struct fio_file *f;
        struct io_u *io_u;
        int ret, min_events;
@@ -412,6 +442,8 @@ static void do_verify(struct thread_data *td)
                        break;
        }
 
+       check_update_rusage(td);
+
        if (td->error)
                return;
 
@@ -419,9 +451,11 @@ static void do_verify(struct thread_data *td)
 
        io_u = NULL;
        while (!td->terminate) {
+               enum fio_ddir ddir;
                int ret2, full;
 
                update_tv_cache(td);
+               check_update_rusage(td);
 
                if (runtime_exceeded(td, &td->tv_cache)) {
                        __update_tv_cache(td);
@@ -434,18 +468,53 @@ static void do_verify(struct thread_data *td)
                if (flow_threshold_exceeded(td))
                        continue;
 
-               io_u = __get_io_u(td);
-               if (!io_u)
-                       break;
+               if (!td->o.experimental_verify) {
+                       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 (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_io_prep(td, io_u)) {
+                               put_io_u(td, io_u);
+                               break;
+                       }
+               } else {
+                       if (ddir_rw_sum(bytes_done) + td->o.rw_min_bs > verify_bytes)
+                               break;
+
+                       while ((io_u = get_io_u(td)) != NULL) {
+                               /*
+                                * We are only interested in the places where
+                                * we wrote or trimmed IOs. Turn those into
+                                * reads for verification purposes.
+                                */
+                               if (io_u->ddir == DDIR_READ) {
+                                       /*
+                                        * Pretend we issued it for rwmix
+                                        * accounting
+                                        */
+                                       td->io_issues[DDIR_READ]++;
+                                       put_io_u(td, io_u);
+                                       continue;
+                               } else if (io_u->ddir == DDIR_TRIM) {
+                                       io_u->ddir = DDIR_READ;
+                                       io_u->flags |= IO_U_F_TRIMMED;
+                                       break;
+                               } else if (io_u->ddir == DDIR_WRITE) {
+                                       io_u->ddir = DDIR_READ;
+                                       break;
+                               } else {
+                                       put_io_u(td, io_u);
+                                       continue;
+                               }
+                       }
+
+                       if (!io_u)
+                               break;
                }
 
                if (td->o.verify_async)
@@ -453,6 +522,8 @@ static void do_verify(struct thread_data *td)
                else
                        io_u->end_io = verify_io_u;
 
+               ddir = io_u->ddir;
+
                ret = td_io_queue(td, io_u);
                switch (ret) {
                case FIO_Q_COMPLETED:
@@ -485,7 +556,7 @@ static void do_verify(struct thread_data *td)
                                requeue_io_u(td, &io_u);
                        } else {
 sync_done:
-                               ret = io_u_sync_complete(td, io_u, NULL);
+                               ret = io_u_sync_complete(td, io_u, bytes_done);
                                if (ret < 0)
                                        break;
                        }
@@ -504,7 +575,7 @@ sync_done:
                        break;
                }
 
-               if (break_on_this_error(td, io_u->ddir, &ret))
+               if (break_on_this_error(td, ddir, &ret))
                        break;
 
                /*
@@ -528,7 +599,7 @@ sync_done:
                                 * and do the verification on them through
                                 * the callback handler
                                 */
-                               if (io_u_queued_complete(td, min_events, NULL) < 0) {
+                               if (io_u_queued_complete(td, min_events, bytes_done) < 0) {
                                        ret = -1;
                                        break;
                                }
@@ -538,6 +609,8 @@ sync_done:
                        break;
        }
 
+       check_update_rusage(td);
+
        if (!td->error) {
                min_events = td->cur_depth;
 
@@ -570,9 +643,12 @@ static int io_bytes_exceeded(struct thread_data *td)
 /*
  * Main IO worker function. It retrieves io_u's to process and queues
  * and reaps them, checking for rate and errors along the way.
+ *
+ * Returns number of bytes written and trimmed.
  */
-static void do_io(struct thread_data *td)
+static uint64_t do_io(struct thread_data *td)
 {
+       uint64_t bytes_done[DDIR_RWDIR_CNT] = { 0, 0, 0 };
        unsigned int i;
        int ret = 0;
 
@@ -585,13 +661,14 @@ static void do_io(struct thread_data *td)
                (!flist_empty(&td->trim_list)) || !io_bytes_exceeded(td) ||
                td->o.time_based) {
                struct timeval comp_time;
-               unsigned long bytes_done[DDIR_RWDIR_CNT] = { 0, 0, 0 };
                int min_evts = 0;
                struct io_u *io_u;
                int ret2, full;
                enum fio_ddir ddir;
 
-               if (td->terminate)
+               check_update_rusage(td);
+
+               if (td->terminate || td->done)
                        break;
 
                update_tv_cache(td);
@@ -726,7 +803,7 @@ sync_done:
 
                if (ret < 0)
                        break;
-               if (!ddir_rw_sum(bytes_done))
+               if (!ddir_rw_sum(bytes_done) && !(td->io_ops->flags & FIO_NOIO))
                        continue;
 
                if (!in_ramp_time(td) && should_check_rate(td, bytes_done)) {
@@ -755,6 +832,8 @@ sync_done:
                }
        }
 
+       check_update_rusage(td);
+
        if (td->trim_entries)
                log_err("fio: %d trim entries leaked?\n", td->trim_entries);
 
@@ -767,7 +846,7 @@ sync_done:
 
                i = td->cur_depth;
                if (i) {
-                       ret = io_u_queued_complete(td, i, NULL);
+                       ret = io_u_queued_complete(td, i, bytes_done);
                        if (td->o.fill_device && td->error == ENOSPC)
                                td->error = 0;
                }
@@ -776,9 +855,11 @@ sync_done:
                        td_set_runstate(td, TD_FSYNCING);
 
                        for_each_file(td, f, i) {
-                               if (!fio_file_open(f))
+                               if (!fio_file_fsync(td, f))
                                        continue;
-                               fio_io_sync(td, f);
+
+                               log_err("fio: end_fsync failed for file %s\n",
+                                                               f->file_name);
                        }
                }
        } else
@@ -789,6 +870,8 @@ sync_done:
         */
        if (!ddir_rw_sum(td->this_io_bytes))
                td->done = 1;
+
+       return bytes_done[DDIR_WRITE] + bytes_done[DDIR_TRIM];
 }
 
 static void cleanup_io_u(struct thread_data *td)
@@ -800,6 +883,10 @@ static void cleanup_io_u(struct thread_data *td)
                io_u = flist_entry(entry, struct io_u, list);
 
                flist_del(&io_u->list);
+
+               if (td->io_ops->io_u_free)
+                       td->io_ops->io_u_free(td, io_u);
+
                fio_memfree(io_u, sizeof(*io_u));
        }
 
@@ -815,8 +902,7 @@ static int init_io_u(struct thread_data *td)
        char *p;
 
        max_units = td->o.iodepth;
-       max_bs = max(td->o.max_bs[DDIR_READ], td->o.max_bs[DDIR_WRITE]);
-       max_bs = max(td->o.max_bs[DDIR_TRIM], max_bs);
+       max_bs = td_max_bs(td);
        min_write = td->o.min_bs[DDIR_WRITE];
        td->orig_buffer_size = (unsigned long long) max_bs
                                        * (unsigned long long) max_units;
@@ -882,6 +968,16 @@ 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);
+
+               if (td->io_ops->io_u_init) {
+                       int ret = td->io_ops->io_u_init(td, io_u);
+
+                       if (ret) {
+                               log_err("fio: failed to init engine data: %d\n", ret);
+                               return 1;
+                       }
+               }
+
                p += max_bs;
        }
 
@@ -955,8 +1051,19 @@ static int keep_running(struct thread_data *td)
                return 1;
        }
 
-       if (ddir_rw_sum(td->io_bytes) < td->o.size)
+       if (td->o.size != -1ULL && ddir_rw_sum(td->io_bytes) < td->o.size) {
+               uint64_t diff;
+
+               /*
+                * If the difference is less than the minimum IO size, we
+                * are done.
+                */
+               diff = td->o.size - ddir_rw_sum(td->io_bytes);
+               if (diff < td_max_bs(td))
+                       return 0;
+
                return 1;
+       }
 
        return 0;
 }
@@ -994,6 +1101,8 @@ static void *thread_main(void *data)
        } else
                td->pid = gettid();
 
+       fio_local_clock_init(td->o.use_thread);
+
        dprint(FD_PROCESS, "jobs pid=%d started\n", (int) td->pid);
 
        INIT_FLIST_HEAD(&td->io_u_freelist);
@@ -1003,6 +1112,7 @@ static void *thread_main(void *data)
        INIT_FLIST_HEAD(&td->io_hist_list);
        INIT_FLIST_HEAD(&td->verify_list);
        INIT_FLIST_HEAD(&td->trim_list);
+       INIT_FLIST_HEAD(&td->next_rand_list);
        pthread_mutex_init(&td->io_u_lock, NULL);
        td->io_hist_tree = RB_ROOT;
 
@@ -1052,7 +1162,7 @@ static void *thread_main(void *data)
                goto err;
        }
 
-#ifdef FIO_HAVE_LIBNUMA
+#ifdef CONFIG_LIBNUMA
        /* numa node setup */
        if (td->o.numa_cpumask_set || td->o.numa_memmask_set) {
                int ret;
@@ -1095,6 +1205,9 @@ static void *thread_main(void *data)
        }
 #endif
 
+       if (fio_pin_memory(td))
+               goto err;
+
        /*
         * May alter parameters that init_io_u() will use, so we need to
         * do this first.
@@ -1146,11 +1259,14 @@ static void *thread_main(void *data)
                        goto err;
        }
 
-       fio_gettime(&td->epoch, NULL);
-       getrusage(RUSAGE_SELF, &td->ru_start);
+       fio_verify_init(td);
 
+       fio_gettime(&td->epoch, NULL);
+       fio_getrusage(&td->ru_start);
        clear_state = 0;
        while (keep_running(td)) {
+               uint64_t verify_bytes;
+
                fio_gettime(&td->start, NULL);
                memcpy(&td->bw_sample_time, &td->start, sizeof(td->start));
                memcpy(&td->iops_sample_time, &td->start, sizeof(td->start));
@@ -1171,7 +1287,7 @@ static void *thread_main(void *data)
 
                prune_io_piece_log(td);
 
-               do_io(td);
+               verify_bytes = do_io(td);
 
                clear_state = 1;
 
@@ -1200,7 +1316,7 @@ static void *thread_main(void *data)
 
                fio_gettime(&td->start, NULL);
 
-               do_verify(td);
+               do_verify(td, verify_bytes);
 
                td->ts.runtime[DDIR_READ] += utime_since_now(&td->start);
 
@@ -1217,6 +1333,8 @@ static void *thread_main(void *data)
        td->ts.io_bytes[DDIR_WRITE] = td->io_bytes[DDIR_WRITE];
        td->ts.io_bytes[DDIR_TRIM] = td->io_bytes[DDIR_TRIM];
 
+       fio_unpin_memory(td);
+
        fio_mutex_down(writeout_mutex);
        if (td->bw_log) {
                if (td->o.bw_log_file) {
@@ -1270,8 +1388,8 @@ err:
                verify_async_exit(td);
 
        close_and_free_files(td);
-       close_ioengine(td);
        cleanup_io_u(td);
+       close_ioengine(td);
        cgroup_shutdown(td, &cgroup_mnt);
 
        if (td->o.cpumask_set) {
@@ -1286,6 +1404,9 @@ err:
        if (td->o.write_iolog_file)
                write_iolog_close(td);
 
+       fio_mutex_remove(td->rusage_sem);
+       td->rusage_sem = NULL;
+
        td_set_runstate(td, TD_EXITED);
        return (void *) (uintptr_t) td->error;
 }
@@ -1382,7 +1503,7 @@ static void reap_threads(unsigned int *nr_running, unsigned int *t_rate,
                        if (WIFSIGNALED(status)) {
                                int sig = WTERMSIG(status);
 
-                               if (sig != SIGTERM)
+                               if (sig != SIGTERM && sig != SIGUSR2)
                                        log_err("fio: pid=%d, got signal=%d\n",
                                                        (int) td->pid, sig);
                                td->sig = sig;
@@ -1429,11 +1550,10 @@ static void run_threads(void)
        unsigned long spent;
        unsigned 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;
+       
+       fio_idle_prof_init();
 
        set_sig_handlers();
 
@@ -1491,6 +1611,9 @@ static void run_threads(void)
                }
        }
 
+       /* start idle threads before io threads start to run */
+       fio_idle_prof_start();
+
        set_genesis_time();
 
        while (todo) {
@@ -1529,6 +1652,9 @@ static void run_threads(void)
 
                        init_disk_util(td);
 
+                       td->rusage_sem = fio_mutex_init(FIO_MUTEX_LOCKED);
+                       td->update_rusage = 0;
+
                        /*
                         * Set state to created. Thread will transition
                         * to TD_INITIALIZED when it's done setting up.
@@ -1653,8 +1779,9 @@ static void run_threads(void)
                        usleep(10000);
        }
 
+       fio_idle_prof_stop();
+
        update_io_ticks();
-       fio_unpin_memory();
 }
 
 void wait_for_disk_thread_exit(void)