2 * Rated submission helpers
4 * Copyright (C) 2015 Jens Axboe <axboe@kernel.dk>
9 #include "lib/getrusage.h"
11 static int io_workqueue_fn(struct submit_worker *sw,
12 struct workqueue_work *work)
14 struct io_u *io_u = container_of(work, struct io_u, work);
15 const enum fio_ddir ddir = io_u->ddir;
16 struct thread_data *td = sw->private;
19 dprint(FD_RATE, "io_u %p queued by %u\n", io_u, gettid());
21 io_u_set(io_u, IO_U_F_NO_FILE_PUT);
26 ret = td_io_queue(td, io_u);
27 if (ret != FIO_Q_BUSY)
29 ret = io_u_queued_complete(td, 1);
32 io_u_clear(io_u, IO_U_F_FLIGHT);
35 dprint(FD_RATE, "io_u %p ret %d by %u\n", io_u, ret, gettid());
37 io_queue_event(td, io_u, &ret, ddir, NULL, 0, NULL);
39 if (ret == FIO_Q_COMPLETED)
41 else if (ret == FIO_Q_QUEUED) {
42 unsigned int min_evts;
44 if (td->o.iodepth == 1)
49 ret = io_u_queued_complete(td, min_evts);
52 } else if (ret == FIO_Q_BUSY) {
53 ret = io_u_queued_complete(td, td->cur_depth);
61 static bool io_workqueue_pre_sleep_flush_fn(struct submit_worker *sw)
63 struct thread_data *td = sw->private;
65 if (td->io_u_queued || td->cur_depth || td->io_u_in_flight)
71 static void io_workqueue_pre_sleep_fn(struct submit_worker *sw)
73 struct thread_data *td = sw->private;
76 ret = io_u_quiesce(td);
81 static int io_workqueue_alloc_fn(struct submit_worker *sw)
83 struct thread_data *td;
85 td = calloc(1, sizeof(*td));
90 static void io_workqueue_free_fn(struct submit_worker *sw)
96 static int io_workqueue_init_worker_fn(struct submit_worker *sw)
98 struct thread_data *parent = sw->wq->td;
99 struct thread_data *td = sw->private;
102 memcpy(&td->o, &parent->o, sizeof(td->o));
103 memcpy(&td->ts, &parent->ts, sizeof(td->ts));
104 td->o.uid = td->o.gid = -1U;
105 dup_files(td, parent);
107 fio_options_mem_dupe(td);
109 if (ioengine_load(td))
113 td->io_ops->flags |= FIO_RAWIO;
117 INIT_FLIST_HEAD(&td->io_log_list);
118 INIT_FLIST_HEAD(&td->io_hist_list);
119 INIT_FLIST_HEAD(&td->verify_list);
120 INIT_FLIST_HEAD(&td->trim_list);
121 INIT_FLIST_HEAD(&td->next_rand_list);
122 td->io_hist_tree = RB_ROOT;
128 fio_gettime(&td->epoch, NULL);
129 fio_getrusage(&td->ru_start);
130 clear_io_state(td, 1);
132 td_set_runstate(td, TD_RUNNING);
133 td->flags |= TD_F_CHILD;
144 static void io_workqueue_exit_worker_fn(struct submit_worker *sw,
145 unsigned int *sum_cnt)
147 struct thread_data *td = sw->private;
150 sum_thread_stats(&sw->wq->td->ts, &td->ts, *sum_cnt == 1);
152 fio_options_free(td);
153 close_and_free_files(td);
156 td_set_runstate(td, TD_EXITED);
160 static void sum_val(uint64_t *dst, uint64_t *src)
163 __sync_fetch_and_add(dst, *src);
168 static void sum_val(uint64_t *dst, uint64_t *src)
177 static void pthread_double_unlock(pthread_mutex_t *lock1,
178 pthread_mutex_t *lock2)
181 pthread_mutex_unlock(lock1);
182 pthread_mutex_unlock(lock2);
186 static void pthread_double_lock(pthread_mutex_t *lock1, pthread_mutex_t *lock2)
190 pthread_mutex_lock(lock1);
191 pthread_mutex_lock(lock2);
193 pthread_mutex_lock(lock2);
194 pthread_mutex_lock(lock1);
199 static void sum_ddir(struct thread_data *dst, struct thread_data *src,
202 pthread_double_lock(&dst->io_wq.stat_lock, &src->io_wq.stat_lock);
204 sum_val(&dst->io_bytes[ddir], &src->io_bytes[ddir]);
205 sum_val(&dst->io_blocks[ddir], &src->io_blocks[ddir]);
206 sum_val(&dst->this_io_blocks[ddir], &src->this_io_blocks[ddir]);
207 sum_val(&dst->this_io_bytes[ddir], &src->this_io_bytes[ddir]);
208 sum_val(&dst->bytes_done[ddir], &src->bytes_done[ddir]);
210 pthread_double_unlock(&dst->io_wq.stat_lock, &src->io_wq.stat_lock);
213 static void io_workqueue_update_acct_fn(struct submit_worker *sw)
215 struct thread_data *src = sw->private;
216 struct thread_data *dst = sw->wq->td;
219 sum_ddir(dst, src, DDIR_READ);
221 sum_ddir(dst, src, DDIR_WRITE);
223 sum_ddir(dst, src, DDIR_TRIM);
227 static struct workqueue_ops rated_wq_ops = {
228 .fn = io_workqueue_fn,
229 .pre_sleep_flush_fn = io_workqueue_pre_sleep_flush_fn,
230 .pre_sleep_fn = io_workqueue_pre_sleep_fn,
231 .update_acct_fn = io_workqueue_update_acct_fn,
232 .alloc_worker_fn = io_workqueue_alloc_fn,
233 .free_worker_fn = io_workqueue_free_fn,
234 .init_worker_fn = io_workqueue_init_worker_fn,
235 .exit_worker_fn = io_workqueue_exit_worker_fn,
238 int rate_submit_init(struct thread_data *td)
240 if (td->o.io_submit_mode != IO_MODE_OFFLOAD)
243 return workqueue_init(td, &td->io_wq, &rated_wq_ops, td->o.iodepth);
246 void rate_submit_exit(struct thread_data *td)
248 if (td->o.io_submit_mode != IO_MODE_OFFLOAD)
251 workqueue_exit(&td->io_wq);