workqueue: add nice support

[fio.git] / workqueue.c

diff --git a/workqueue.c b/workqueue.c
index f0ebd8a90bb3af03f47e2bec4d6ccbc36c2e4922..b9b098668094143f4a3e998d7f1294aca1dfac32 100644 (file)
--- a/workqueue.c
+++ b/workqueue.c
@@ -130,128 +130,23 @@ static void handle_list(struct submit_worker *sw, struct flist_head *list)
        }
 }
 
-static int init_submit_worker(struct submit_worker *sw)
-{
-       struct thread_data *parent = sw->wq->td;
-       struct thread_data *td = sw->private;
-       int fio_unused ret;
-
-       memcpy(&td->o, &parent->o, sizeof(td->o));
-       memcpy(&td->ts, &parent->ts, sizeof(td->ts));
-       td->o.uid = td->o.gid = -1U;
-       dup_files(td, parent);
-       td->eo = parent->eo;
-       fio_options_mem_dupe(td);
-
-       if (ioengine_load(td))
-               goto err;
-
-       if (td->o.odirect)
-               td->io_ops->flags |= FIO_RAWIO;
-
-       td->pid = gettid();
-
-       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);
-       INIT_FLIST_HEAD(&td->next_rand_list);
-       td->io_hist_tree = RB_ROOT;
-
-       td->o.iodepth = 1;
-       if (td_io_init(td))
-               goto err_io_init;
-
-       fio_gettime(&td->epoch, NULL);
-       fio_getrusage(&td->ru_start);
-       clear_io_state(td, 1);
-
-       td_set_runstate(td, TD_RUNNING);
-       td->flags |= TD_F_CHILD;
-       td->parent = parent;
-       return 0;
-
-err_io_init:
-       close_ioengine(td);
-err:
-       return 1;
-}
-
-#ifdef CONFIG_SFAA
-static void sum_val(uint64_t *dst, uint64_t *src)
-{
-       if (*src) {
-               __sync_fetch_and_add(dst, *src);
-               *src = 0;
-       }
-}
-#else
-static void sum_val(uint64_t *dst, uint64_t *src)
-{
-       if (*src) {
-               *dst += *src;
-               *src = 0;
-       }
-}
-#endif
-
-static void pthread_double_unlock(pthread_mutex_t *lock1,
-                                 pthread_mutex_t *lock2)
-{
-#ifndef CONFIG_SFAA
-       pthread_mutex_unlock(lock1);
-       pthread_mutex_unlock(lock2);
-#endif
-}
-
-static void pthread_double_lock(pthread_mutex_t *lock1, pthread_mutex_t *lock2)
-{
-#ifndef CONFIG_SFAA
-       if (lock1 < lock2) {
-               pthread_mutex_lock(lock1);
-               pthread_mutex_lock(lock2);
-       } else {
-               pthread_mutex_lock(lock2);
-               pthread_mutex_lock(lock1);
-       }
-#endif
-}
-
-static void sum_ddir(struct thread_data *dst, struct thread_data *src,
-                    enum fio_ddir ddir)
-{
-       pthread_double_lock(&dst->io_wq.stat_lock, &src->io_wq.stat_lock);
-
-       sum_val(&dst->io_bytes[ddir], &src->io_bytes[ddir]);
-       sum_val(&dst->io_blocks[ddir], &src->io_blocks[ddir]);
-       sum_val(&dst->this_io_blocks[ddir], &src->this_io_blocks[ddir]);
-       sum_val(&dst->this_io_bytes[ddir], &src->this_io_bytes[ddir]);
-       sum_val(&dst->bytes_done[ddir], &src->bytes_done[ddir]);
-
-       pthread_double_unlock(&dst->io_wq.stat_lock, &src->io_wq.stat_lock);
-}
-
-static void update_accounting(struct submit_worker *sw)
-{
-       struct thread_data *src = sw->private;
-       struct thread_data *dst = sw->wq->td;
-
-       if (td_read(src))
-               sum_ddir(dst, src, DDIR_READ);
-       if (td_write(src))
-               sum_ddir(dst, src, DDIR_WRITE);
-       if (td_trim(src))
-               sum_ddir(dst, src, DDIR_TRIM);
-}
-
 static void *worker_thread(void *data)
 {
        struct submit_worker *sw = data;
        struct workqueue *wq = sw->wq;
-       unsigned int eflags = 0, ret;
+       unsigned int eflags = 0, ret = 0;
        FLIST_HEAD(local_list);
 
-       ret = init_submit_worker(sw);
+       if (wq->ops.nice) {
+               if (nice(wq->ops.nice) < 0) {
+                       log_err("workqueue: nice %s\n", strerror(errno));
+                       ret = 1;
+               }
+       }
+
+       if (!ret)
+               ret = workqueue_init_worker(sw);
+
        pthread_mutex_lock(&sw->lock);
        sw->flags |= SW_F_RUNNING;
        if (ret)
@@ -296,7 +191,9 @@ static void *worker_thread(void *data)
                                if (wq->wake_idle)
                                        pthread_cond_signal(&wq->flush_cond);
                        }
-                       update_accounting(sw);
+                       if (wq->ops.update_acct_fn)
+                               wq->ops.update_acct_fn(sw);
+
                        pthread_cond_wait(&sw->cond, &sw->lock);
                } else {
 handle_work:
@@ -306,7 +203,8 @@ handle_work:
                handle_list(sw, &local_list);
        }
 
-       update_accounting(sw);
+       if (wq->ops.update_acct_fn)
+               wq->ops.update_acct_fn(sw);
 
 done:
        pthread_mutex_lock(&sw->lock);
@@ -315,16 +213,11 @@ done:
        return NULL;
 }
 
-static void free_worker(struct submit_worker *sw)
+static void free_worker(struct submit_worker *sw, unsigned int *sum_cnt)
 {
-       struct thread_data *td = sw->private;
        struct workqueue *wq = sw->wq;
 
-       fio_options_free(td);
-       close_and_free_files(td);
-       if (td->io_ops)
-               close_ioengine(td);
-       td_set_runstate(td, TD_EXITED);
+       workqueue_exit_worker(sw, sum_cnt);
 
        pthread_cond_destroy(&sw->cond);
        pthread_mutex_destroy(&sw->lock);
@@ -335,13 +228,8 @@ static void free_worker(struct submit_worker *sw)
 
 static void shutdown_worker(struct submit_worker *sw, unsigned int *sum_cnt)
 {
-       struct thread_data *parent = sw->wq->td;
-       struct thread_data *td = sw->private;
-
        pthread_join(sw->thread, NULL);
-       (*sum_cnt)++;
-       sum_thread_stats(&parent->ts, &td->ts, *sum_cnt == 1);
-       free_worker(sw);
+       free_worker(sw, sum_cnt);
 }
 
 void workqueue_exit(struct workqueue *wq)
@@ -404,7 +292,7 @@ static int start_worker(struct workqueue *wq, unsigned int index)
                return 0;
        }
 
-       free_worker(sw);
+       free_worker(sw, NULL);
        return 1;
 }