Fix cpumask setting/getting on older kernels

[fio.git] / fio.c

diff --git a/fio.c b/fio.c
index 160d533583b6850c30bacbd98e1ef345db5c7680..6483e64c9462eeae4075fa6f449dae7970bb1eeb 100644 (file)
--- a/fio.c
+++ b/fio.c
@@ -35,6 +35,7 @@
 #include <sys/mman.h>
 
 #include "fio.h"
+#include "hash.h"
 
 unsigned long page_mask;
 unsigned long page_size;
@@ -310,6 +311,7 @@ static void do_verify(struct thread_data *td)
 
                if (runtime_exceeded(td, &io_u->start_time)) {
                        put_io_u(td, io_u);
+                       td->terminate = 1;
                        break;
                }
 
@@ -332,6 +334,7 @@ static void do_verify(struct thread_data *td)
                                ret = -io_u->error;
                        else if (io_u->resid) {
                                int bytes = io_u->xfer_buflen - io_u->resid;
+                               struct fio_file *f = io_u->file;
 
                                /*
                                 * zero read, fail
@@ -345,8 +348,11 @@ static void do_verify(struct thread_data *td)
                                io_u->xfer_buflen = io_u->resid;
                                io_u->xfer_buf += bytes;
                                io_u->offset += bytes;
+                               f->last_completed_pos = io_u->offset;
+
+                               td->ts.short_io_u[io_u->ddir]++;
 
-                               if (io_u->offset == io_u->file->real_file_size)
+                               if (io_u->offset == f->real_file_size)
                                        goto sync_done;
 
                                requeue_io_u(td, &io_u);
@@ -436,6 +442,7 @@ static void do_io(struct thread_data *td)
 
                if (runtime_exceeded(td, &s)) {
                        put_io_u(td, io_u);
+                       td->terminate = 1;
                        break;
                }
 
@@ -446,6 +453,7 @@ static void do_io(struct thread_data *td)
                                ret = -io_u->error;
                        else if (io_u->resid) {
                                int bytes = io_u->xfer_buflen - io_u->resid;
+                               struct fio_file *f = io_u->file;
 
                                /*
                                 * zero read, fail
@@ -459,8 +467,11 @@ static void do_io(struct thread_data *td)
                                io_u->xfer_buflen = io_u->resid;
                                io_u->xfer_buf += bytes;
                                io_u->offset += bytes;
+                               f->last_completed_pos = io_u->offset;
 
-                               if (io_u->offset == io_u->file->real_file_size)
+                               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);
@@ -588,14 +599,17 @@ static void cleanup_io_u(struct thread_data *td)
 /*
  * "randomly" fill the buffer contents
  */
-static void fill_rand_buf(struct io_u *io_u, int max_bs)
+static void fill_io_buf(struct thread_data *td, struct io_u *io_u, int max_bs)
 {
-       int *ptr = io_u->buf;
+       long *ptr = io_u->buf;
 
-       while ((void *) ptr - io_u->buf < max_bs) {
-               *ptr = rand() * 0x9e370001;
-               ptr++;
-       }
+       if (!td->o.zero_buffers) {
+               while ((void *) ptr - io_u->buf < max_bs) {
+                       *ptr = rand() * GOLDEN_RATIO_PRIME;
+                       ptr++;
+               }
+       } else
+               memset(ptr, 0, max_bs);
 }
 
 static int init_io_u(struct thread_data *td)
@@ -631,13 +645,16 @@ static int init_io_u(struct thread_data *td)
 
        p = ALIGN(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);
 
                io_u->buf = p + max_bs * i;
-               if (td_write(td) || td_rw(td))
-                       fill_rand_buf(io_u, max_bs);
+
+               if (td_write(td))
+                       fill_io_buf(td, io_u, max_bs);
 
                io_u->index = i;
                io_u->flags = IO_U_F_FREE;
@@ -755,41 +772,45 @@ 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;
@@ -814,7 +835,7 @@ static void *thread_main(void *data)
 
        runtime[0] = runtime[1] = 0;
        clear_state = 0;
-       while (td->o.loops--) {
+       while (td->o.time_based || td->o.loops--) {
                fio_gettime(&td->start, NULL);
                memcpy(&td->ts.stat_sample_time, &td->start, sizeof(td->start));
 
@@ -898,9 +919,6 @@ err:
        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;
 }
 
 /*