splice: update to new vmsplice-to-user interface
[fio.git] / fio.c
diff --git a/fio.c b/fio.c
index d8c143332823bf2c488ef0799951c8ce70c71fe3..02ed91dbcea0b70454fee2b78b68c5041b49107d 100644 (file)
--- a/fio.c
+++ b/fio.c
@@ -446,6 +446,13 @@ static void do_io(struct thread_data *td)
                        break;
                }
 
+               /*
+                * Add verification end_io handler, if asked to verify
+                * a previously written file.
+                */
+               if (td->o.verify != VERIFY_NONE)
+                       io_u->end_io = verify_io_u;
+
                ret = td_io_queue(td, io_u);
                switch (ret) {
                case FIO_Q_COMPLETED:
@@ -614,7 +621,6 @@ static void fill_io_buf(struct thread_data *td, struct io_u *io_u, int max_bs)
 
 static int init_io_u(struct thread_data *td)
 {
-       unsigned long long buf_size;
        struct io_u *io_u;
        unsigned int max_bs;
        int i, max_units;
@@ -626,25 +632,27 @@ static int init_io_u(struct thread_data *td)
                max_units = td->o.iodepth;
 
        max_bs = max(td->o.max_bs[DDIR_READ], td->o.max_bs[DDIR_WRITE]);
-       buf_size = (unsigned long long) max_bs * (unsigned long long) max_units;
-       buf_size += page_mask;
-       if (buf_size != (size_t) buf_size) {
-               log_err("fio: IO memory too large. Reduce max_bs or iodepth\n");
-               return 1;
-       }
-
-       td->orig_buffer_size = buf_size;
+       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)
                td->orig_buffer_size = (td->orig_buffer_size + td->o.hugepage_size - 1) & ~(td->o.hugepage_size - 1);
-       else if (td->orig_buffer_size & page_mask)
-               td->orig_buffer_size = (td->orig_buffer_size + page_mask) & ~page_mask;
+
+       if (td->orig_buffer_size != (size_t) td->orig_buffer_size) {
+               log_err("fio: IO memory too large. Reduce max_bs or iodepth\n");
+               return 1;
+       }
 
        if (allocate_io_mem(td))
                return 1;
 
-       p = ALIGN(td->orig_buffer);
+       if (td->o.odirect)
+               p = ALIGN(td->orig_buffer);
+       else
+               p = td->orig_buffer;
+
        for (i = 0; i < max_units; i++) {
+               if (td->terminate)
+                       return 1;
                io_u = malloc(sizeof(*io_u));
                memset(io_u, 0, sizeof(*io_u));
                INIT_LIST_HEAD(&io_u->list);
@@ -719,6 +727,26 @@ static int switch_ioscheduler(struct thread_data *td)
        return 0;
 }
 
+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 int clear_io_state(struct thread_data *td)
 {
        struct fio_file *f;
@@ -734,11 +762,15 @@ static int clear_io_state(struct thread_data *td)
 
        td->last_was_sync = 0;
 
+       if (td->o.time_based)
+               td->nr_done_files = 0;
+
        for_each_file(td, f, i)
                td_io_close_file(td, f);
 
        ret = 0;
        for_each_file(td, f, i) {
+               f->flags &= ~FIO_FILE_DONE;
                ret = td_io_open_file(td, f);
                if (ret)
                        break;
@@ -770,41 +802,45 @@ static void *thread_main(void *data)
        INIT_LIST_HEAD(&td->io_hist_list);
        td->io_hist_tree = RB_ROOT;
 
+       td_set_runstate(td, TD_INITIALIZED);
+       fio_sem_up(startup_sem);
+       fio_sem_down(td->mutex);
+
+       /*
+        * the ->mutex semaphore is now no longer used, close it to avoid
+        * eating a file descriptor
+        */
+       fio_sem_remove(td->mutex);
+
+       /*
+        * 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_sem;
+               goto err;
 
-       if (fio_setaffinity(td) == -1) {
+       if (td->o.cpumask_set && fio_setaffinity(td) == -1) {
                td_verror(td, errno, "cpu_set_affinity");
-               goto err_sem;
+               goto err;
        }
 
-       if (init_iolog(td))
-               goto err_sem;
-
        if (td->ioprio) {
                if (ioprio_set(IOPRIO_WHO_PROCESS, 0, td->ioprio) == -1) {
                        td_verror(td, errno, "ioprio_set");
-                       goto err_sem;
+                       goto err;
                }
        }
 
        if (nice(td->o.nice) == -1) {
                td_verror(td, errno, "nice");
-               goto err_sem;
+               goto err;
        }
 
        if (td->o.ioscheduler && switch_ioscheduler(td))
-               goto err_sem;
-
-       td_set_runstate(td, TD_INITIALIZED);
-       fio_sem_up(startup_sem);
-       fio_sem_down(td->mutex);
-
-       /*
-        * the ->mutex semaphore is now no longer used, close it to avoid
-        * eating a file descriptor
-        */
-       fio_sem_remove(td->mutex);
+               goto err;
 
        if (!td->o.create_serialize && setup_files(td))
                goto err;
@@ -829,7 +865,7 @@ static void *thread_main(void *data)
 
        runtime[0] = runtime[1] = 0;
        clear_state = 0;
-       while (td->o.time_based || td->o.loops--) {
+       while (keep_running(td)) {
                fio_gettime(&td->start, NULL);
                memcpy(&td->ts.stat_sample_time, &td->start, sizeof(td->start));
 
@@ -865,7 +901,9 @@ static void *thread_main(void *data)
                if (td->error || td->terminate)
                        break;
 
-               if (td->o.verify == VERIFY_NONE)
+               if (!td->o.do_verify ||
+                   td->o.verify == VERIFY_NONE ||
+                   (td->io_ops->flags & FIO_UNIDIR))
                        continue;
 
                if (clear_io_state(td))
@@ -882,8 +920,8 @@ static void *thread_main(void *data)
        }
 
        update_rusage_stat(td);
-       td->ts.runtime[0] = runtime[0] / 1000;
-       td->ts.runtime[1] = runtime[1] / 1000;
+       td->ts.runtime[0] = (runtime[0] + 999) / 1000;
+       td->ts.runtime[1] = (runtime[1] + 999) / 1000;
        td->ts.total_run_time = mtime_since_now(&td->epoch);
        td->ts.io_bytes[0] = td->io_bytes[0];
        td->ts.io_bytes[1] = td->io_bytes[1];
@@ -894,8 +932,6 @@ static void *thread_main(void *data)
                finish_log(td, td->ts.slat_log, "slat");
        if (td->ts.clat_log)
                finish_log(td, td->ts.clat_log, "clat");
-       if (td->o.write_iolog_file)
-               write_iolog_close(td);
        if (td->o.exec_postrun) {
                if (system(td->o.exec_postrun) < 0)
                        log_err("fio: postrun %s failed\n", td->o.exec_postrun);
@@ -910,12 +946,16 @@ err:
        close_files(td);
        close_ioengine(td);
        cleanup_io_u(td);
+
+       /*
+        * do this very late, it will log file closing as well
+        */
+       if (td->o.write_iolog_file)
+               write_iolog_close(td);
+
        options_mem_free(td);
        td_set_runstate(td, TD_EXITED);
        return (void *) (unsigned long) td->error;
-err_sem:
-       fio_sem_up(startup_sem);
-       goto err;
 }
 
 /*