[fio.git] / rate-submit.c

/*
 * Rated submission helpers
 *
 * Copyright (C) 2015 Jens Axboe <axboe@kernel.dk>
 *
 */
#include "fio.h"
#include "ioengine.h"
#include "lib/getrusage.h"

static int io_workqueue_fn(struct submit_worker *sw,
			   struct workqueue_work *work)
{
	struct io_u *io_u = container_of(work, struct io_u, work);
	const enum fio_ddir ddir = io_u->ddir;
	struct thread_data *td = sw->private;
	int ret;

	dprint(FD_RATE, "io_u %p queued by %u\n", io_u, gettid());

	io_u_set(io_u, IO_U_F_NO_FILE_PUT);

	td->cur_depth++;

	do {
		ret = td_io_queue(td, io_u);
		if (ret != FIO_Q_BUSY)
			break;
		ret = io_u_queued_complete(td, 1);
		if (ret > 0)
			td->cur_depth -= ret;
		io_u_clear(io_u, IO_U_F_FLIGHT);
	} while (1);

	dprint(FD_RATE, "io_u %p ret %d by %u\n", io_u, ret, gettid());

	io_queue_event(td, io_u, &ret, ddir, NULL, 0, NULL);

	if (ret == FIO_Q_COMPLETED)
		td->cur_depth--;
	else if (ret == FIO_Q_QUEUED) {
		unsigned int min_evts;

		if (td->o.iodepth == 1)
			min_evts = 1;
		else
			min_evts = 0;

		ret = io_u_queued_complete(td, min_evts);
		if (ret > 0)
			td->cur_depth -= ret;
	} else if (ret == FIO_Q_BUSY) {
		ret = io_u_queued_complete(td, td->cur_depth);
		if (ret > 0)
			td->cur_depth -= ret;
	}

	return 0;
}

static bool io_workqueue_pre_sleep_flush_fn(struct submit_worker *sw)
{
	struct thread_data *td = sw->private;

	if (td->io_u_queued || td->cur_depth || td->io_u_in_flight)
		return true;

	return false;
}

static void io_workqueue_pre_sleep_fn(struct submit_worker *sw)
{
	struct thread_data *td = sw->private;
	int ret;

	ret = io_u_quiesce(td);
	if (ret > 0)
		td->cur_depth -= ret;
}

static int io_workqueue_alloc_fn(struct submit_worker *sw)
{
	struct thread_data *td;

	td = calloc(1, sizeof(*td));
	sw->private = td;
	return 0;
}

static void io_workqueue_free_fn(struct submit_worker *sw)
{
	free(sw->private);
	sw->private = NULL;
}

static int io_workqueue_init_worker_fn(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;

}

static void io_workqueue_exit_worker_fn(struct submit_worker *sw,
					unsigned int *sum_cnt)
{
	struct thread_data *td = sw->private;

	(*sum_cnt)++;
	sum_thread_stats(&sw->wq->td->ts, &td->ts, *sum_cnt == 1);

	fio_options_free(td);
	close_and_free_files(td);
	if (td->io_ops)
		close_ioengine(td);
	td_set_runstate(td, TD_EXITED);
}

#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 io_workqueue_update_acct_fn(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);

}

struct workqueue_ops rated_wq_ops = {
	.fn			= io_workqueue_fn,
	.pre_sleep_flush_fn	= io_workqueue_pre_sleep_flush_fn,
	.pre_sleep_fn		= io_workqueue_pre_sleep_fn,
	.update_acct_fn		= io_workqueue_update_acct_fn,
	.alloc_worker_fn	= io_workqueue_alloc_fn,
	.free_worker_fn		= io_workqueue_free_fn,
	.init_worker_fn		= io_workqueue_init_worker_fn,
	.exit_worker_fn		= io_workqueue_exit_worker_fn,
};
Commit	Line	Data
51575029 JA	1	/*
	2	* Rated submission helpers
	3	*
	4	* Copyright (C) 2015 Jens Axboe <axboe@kernel.dk>
	5	*
	6	*/
40511301 JA	7	#include "fio.h"
	8	#include "ioengine.h"
	9	#include "lib/getrusage.h"
	10
155f2f02 JA	11	static int io_workqueue_fn(struct submit_worker *sw,
155f2f02 JA	12	struct workqueue_work *work)
40511301 JA	13	{
	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;
	17	int ret;
	18
	19	dprint(FD_RATE, "io_u %p queued by %u\n", io_u, gettid());
	20
	21	io_u_set(io_u, IO_U_F_NO_FILE_PUT);
	22
	23	td->cur_depth++;
	24
	25	do {
	26	ret = td_io_queue(td, io_u);
	27	if (ret != FIO_Q_BUSY)
	28	break;
	29	ret = io_u_queued_complete(td, 1);
	30	if (ret > 0)
	31	td->cur_depth -= ret;
	32	io_u_clear(io_u, IO_U_F_FLIGHT);
	33	} while (1);
	34
	35	dprint(FD_RATE, "io_u %p ret %d by %u\n", io_u, ret, gettid());
	36
	37	io_queue_event(td, io_u, &ret, ddir, NULL, 0, NULL);
	38
	39	if (ret == FIO_Q_COMPLETED)
	40	td->cur_depth--;
	41	else if (ret == FIO_Q_QUEUED) {
	42	unsigned int min_evts;
	43
	44	if (td->o.iodepth == 1)
	45	min_evts = 1;
	46	else
	47	min_evts = 0;
	48
	49	ret = io_u_queued_complete(td, min_evts);
	50	if (ret > 0)
	51	td->cur_depth -= ret;
	52	} else if (ret == FIO_Q_BUSY) {
	53	ret = io_u_queued_complete(td, td->cur_depth);
	54	if (ret > 0)
	55	td->cur_depth -= ret;
	56	}
155f2f02 JA	57
155f2f02 JA	58	return 0;
40511301 JA	59	}
	60
	61	static bool io_workqueue_pre_sleep_flush_fn(struct submit_worker *sw)
	62	{
	63	struct thread_data *td = sw->private;
	64
	65	if (td->io_u_queued \|\| td->cur_depth \|\| td->io_u_in_flight)
	66	return true;
	67
	68	return false;
	69	}
	70
	71	static void io_workqueue_pre_sleep_fn(struct submit_worker *sw)
	72	{
	73	struct thread_data *td = sw->private;
	74	int ret;
	75
	76	ret = io_u_quiesce(td);
	77	if (ret > 0)
	78	td->cur_depth -= ret;
	79	}
	80
	81	static int io_workqueue_alloc_fn(struct submit_worker *sw)
	82	{
	83	struct thread_data *td;
	84
	85	td = calloc(1, sizeof(*td));
	86	sw->private = td;
	87	return 0;
	88	}
	89
	90	static void io_workqueue_free_fn(struct submit_worker *sw)
	91	{
	92	free(sw->private);
	93	sw->private = NULL;
	94	}
	95
	96	static int io_workqueue_init_worker_fn(struct submit_worker *sw)
	97	{
	98	struct thread_data *parent = sw->wq->td;
	99	struct thread_data *td = sw->private;
	100	int fio_unused ret;
	101
	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);
	106	td->eo = parent->eo;
	107	fio_options_mem_dupe(td);
	108
	109	if (ioengine_load(td))
	110	goto err;
	111
	112	if (td->o.odirect)
	113	td->io_ops->flags \|= FIO_RAWIO;
	114
	115	td->pid = gettid();
	116
	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;
123
124	td->o.iodepth = 1;
125	if (td_io_init(td))
126	goto err_io_init;
127
128	fio_gettime(&td->epoch, NULL);
129	fio_getrusage(&td->ru_start);
130	clear_io_state(td, 1);
131
132	td_set_runstate(td, TD_RUNNING);
133	td->flags \|= TD_F_CHILD;
134	td->parent = parent;
135	return 0;
136
137	err_io_init:
138	close_ioengine(td);
139	err:
140	return 1;
141
142	}
143
144	static void io_workqueue_exit_worker_fn(struct submit_worker *sw,
145	unsigned int *sum_cnt)
146	{
147	struct thread_data *td = sw->private;
148
149	(*sum_cnt)++;
150	sum_thread_stats(&sw->wq->td->ts, &td->ts, *sum_cnt == 1);
151
152	fio_options_free(td);
153	close_and_free_files(td);
154	if (td->io_ops)
155	close_ioengine(td);
156	td_set_runstate(td, TD_EXITED);
157	}
158
159	#ifdef CONFIG_SFAA
160	static void sum_val(uint64_t dst, uint64_t src)
161	{
162	if (*src) {
163	__sync_fetch_and_add(dst, *src);
164	*src = 0;
165	}
166	}
167	#else
168	static void sum_val(uint64_t dst, uint64_t src)
169	{
170	if (*src) {
171	dst += src;
172	*src = 0;
173	}
174	}
175	#endif
176
177	static void pthread_double_unlock(pthread_mutex_t *lock1,
178	pthread_mutex_t *lock2)
179	{
180	#ifndef CONFIG_SFAA
181	pthread_mutex_unlock(lock1);
182	pthread_mutex_unlock(lock2);
183	#endif
184	}
185
186	static void pthread_double_lock(pthread_mutex_t lock1, pthread_mutex_t lock2)
187	{
188	#ifndef CONFIG_SFAA
189	if (lock1 < lock2) {
190	pthread_mutex_lock(lock1);
191	pthread_mutex_lock(lock2);
192	} else {
193	pthread_mutex_lock(lock2);
194	pthread_mutex_lock(lock1);
195	}
196	#endif
197	}
198
199	static void sum_ddir(struct thread_data dst, struct thread_data src,
200	enum fio_ddir ddir)
201	{
202	pthread_double_lock(&dst->io_wq.stat_lock, &src->io_wq.stat_lock);
203
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]);
209
210	pthread_double_unlock(&dst->io_wq.stat_lock, &src->io_wq.stat_lock);
211	}
212
213	static void io_workqueue_update_acct_fn(struct submit_worker *sw)
214	{
215	struct thread_data *src = sw->private;
216	struct thread_data *dst = sw->wq->td;
217
218	if (td_read(src))
219	sum_ddir(dst, src, DDIR_READ);
220	if (td_write(src))
221	sum_ddir(dst, src, DDIR_WRITE);
222	if (td_trim(src))
223	sum_ddir(dst, src, DDIR_TRIM);
224
225	}
226
227	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,
236	};