2 * Rated submission helpers
4 * Copyright (C) 2015 Jens Axboe <axboe@kernel.dk>
9 #include "lib/getrusage.h"
10 #include "rate-submit.h"
12 static int io_workqueue_fn(struct submit_worker *sw,
13 struct workqueue_work *work)
15 struct io_u *io_u = container_of(work, struct io_u, work);
16 const enum fio_ddir ddir = io_u->ddir;
17 struct thread_data *td = sw->priv;
20 dprint(FD_RATE, "io_u %p queued by %u\n", io_u, gettid());
22 io_u_set(td, io_u, IO_U_F_NO_FILE_PUT);
27 ret = td_io_queue(td, io_u);
28 if (ret != FIO_Q_BUSY)
30 ret = io_u_queued_complete(td, 1);
33 io_u_clear(td, io_u, IO_U_F_FLIGHT);
36 dprint(FD_RATE, "io_u %p ret %d by %u\n", io_u, ret, gettid());
38 io_queue_event(td, io_u, &ret, ddir, NULL, 0, NULL);
40 if (ret == FIO_Q_COMPLETED)
42 else if (ret == FIO_Q_QUEUED) {
43 unsigned int min_evts;
45 if (td->o.iodepth == 1)
50 ret = io_u_queued_complete(td, min_evts);
53 } else if (ret == FIO_Q_BUSY) {
54 ret = io_u_queued_complete(td, td->cur_depth);
62 static bool io_workqueue_pre_sleep_flush_fn(struct submit_worker *sw)
64 struct thread_data *td = sw->priv;
66 if (td->io_u_queued || td->cur_depth || td->io_u_in_flight)
72 static void io_workqueue_pre_sleep_fn(struct submit_worker *sw)
74 struct thread_data *td = sw->priv;
77 ret = io_u_quiesce(td);
82 static int io_workqueue_alloc_fn(struct submit_worker *sw)
84 struct thread_data *td;
86 td = calloc(1, sizeof(*td));
91 static void io_workqueue_free_fn(struct submit_worker *sw)
97 static int io_workqueue_init_worker_fn(struct submit_worker *sw)
99 struct thread_data *parent = sw->wq->td;
100 struct thread_data *td = sw->priv;
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))
114 INIT_FLIST_HEAD(&td->io_log_list);
115 INIT_FLIST_HEAD(&td->io_hist_list);
116 INIT_FLIST_HEAD(&td->verify_list);
117 INIT_FLIST_HEAD(&td->trim_list);
118 td->io_hist_tree = RB_ROOT;
124 set_epoch_time(td, td->o.log_unix_epoch);
125 fio_getrusage(&td->ru_start);
126 clear_io_state(td, 1);
128 td_set_runstate(td, TD_RUNNING);
129 td->flags |= TD_F_CHILD;
140 static void io_workqueue_exit_worker_fn(struct submit_worker *sw,
141 unsigned int *sum_cnt)
143 struct thread_data *td = sw->priv;
146 sum_thread_stats(&sw->wq->td->ts, &td->ts, *sum_cnt == 1);
148 fio_options_free(td);
149 close_and_free_files(td);
152 td_set_runstate(td, TD_EXITED);
156 static void sum_val(uint64_t *dst, uint64_t *src)
159 __sync_fetch_and_add(dst, *src);
164 static void sum_val(uint64_t *dst, uint64_t *src)
173 static void pthread_double_unlock(pthread_mutex_t *lock1,
174 pthread_mutex_t *lock2)
177 pthread_mutex_unlock(lock1);
178 pthread_mutex_unlock(lock2);
182 static void pthread_double_lock(pthread_mutex_t *lock1, pthread_mutex_t *lock2)
186 pthread_mutex_lock(lock1);
187 pthread_mutex_lock(lock2);
189 pthread_mutex_lock(lock2);
190 pthread_mutex_lock(lock1);
195 static void sum_ddir(struct thread_data *dst, struct thread_data *src,
198 pthread_double_lock(&dst->io_wq.stat_lock, &src->io_wq.stat_lock);
200 sum_val(&dst->io_bytes[ddir], &src->io_bytes[ddir]);
201 sum_val(&dst->io_blocks[ddir], &src->io_blocks[ddir]);
202 sum_val(&dst->this_io_blocks[ddir], &src->this_io_blocks[ddir]);
203 sum_val(&dst->this_io_bytes[ddir], &src->this_io_bytes[ddir]);
204 sum_val(&dst->bytes_done[ddir], &src->bytes_done[ddir]);
206 pthread_double_unlock(&dst->io_wq.stat_lock, &src->io_wq.stat_lock);
209 static void io_workqueue_update_acct_fn(struct submit_worker *sw)
211 struct thread_data *src = sw->priv;
212 struct thread_data *dst = sw->wq->td;
215 sum_ddir(dst, src, DDIR_READ);
217 sum_ddir(dst, src, DDIR_WRITE);
219 sum_ddir(dst, src, DDIR_TRIM);
223 static struct workqueue_ops rated_wq_ops = {
224 .fn = io_workqueue_fn,
225 .pre_sleep_flush_fn = io_workqueue_pre_sleep_flush_fn,
226 .pre_sleep_fn = io_workqueue_pre_sleep_fn,
227 .update_acct_fn = io_workqueue_update_acct_fn,
228 .alloc_worker_fn = io_workqueue_alloc_fn,
229 .free_worker_fn = io_workqueue_free_fn,
230 .init_worker_fn = io_workqueue_init_worker_fn,
231 .exit_worker_fn = io_workqueue_exit_worker_fn,
234 int rate_submit_init(struct thread_data *td, struct sk_out *sk_out)
236 if (td->o.io_submit_mode != IO_MODE_OFFLOAD)
239 return workqueue_init(td, &td->io_wq, &rated_wq_ops, td->o.iodepth, sk_out);
242 void rate_submit_exit(struct thread_data *td)
244 if (td->o.io_submit_mode != IO_MODE_OFFLOAD)
247 workqueue_exit(&td->io_wq);