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40511301 JA |
1 | #include "fio.h" |
2 | #include "ioengine.h" | |
3 | #include "lib/getrusage.h" | |
4 | ||
155f2f02 JA |
5 | static int io_workqueue_fn(struct submit_worker *sw, |
6 | struct workqueue_work *work) | |
40511301 JA |
7 | { |
8 | struct io_u *io_u = container_of(work, struct io_u, work); | |
9 | const enum fio_ddir ddir = io_u->ddir; | |
10 | struct thread_data *td = sw->private; | |
11 | int ret; | |
12 | ||
13 | dprint(FD_RATE, "io_u %p queued by %u\n", io_u, gettid()); | |
14 | ||
15 | io_u_set(io_u, IO_U_F_NO_FILE_PUT); | |
16 | ||
17 | td->cur_depth++; | |
18 | ||
19 | do { | |
20 | ret = td_io_queue(td, io_u); | |
21 | if (ret != FIO_Q_BUSY) | |
22 | break; | |
23 | ret = io_u_queued_complete(td, 1); | |
24 | if (ret > 0) | |
25 | td->cur_depth -= ret; | |
26 | io_u_clear(io_u, IO_U_F_FLIGHT); | |
27 | } while (1); | |
28 | ||
29 | dprint(FD_RATE, "io_u %p ret %d by %u\n", io_u, ret, gettid()); | |
30 | ||
31 | io_queue_event(td, io_u, &ret, ddir, NULL, 0, NULL); | |
32 | ||
33 | if (ret == FIO_Q_COMPLETED) | |
34 | td->cur_depth--; | |
35 | else if (ret == FIO_Q_QUEUED) { | |
36 | unsigned int min_evts; | |
37 | ||
38 | if (td->o.iodepth == 1) | |
39 | min_evts = 1; | |
40 | else | |
41 | min_evts = 0; | |
42 | ||
43 | ret = io_u_queued_complete(td, min_evts); | |
44 | if (ret > 0) | |
45 | td->cur_depth -= ret; | |
46 | } else if (ret == FIO_Q_BUSY) { | |
47 | ret = io_u_queued_complete(td, td->cur_depth); | |
48 | if (ret > 0) | |
49 | td->cur_depth -= ret; | |
50 | } | |
155f2f02 JA |
51 | |
52 | return 0; | |
40511301 JA |
53 | } |
54 | ||
55 | static bool io_workqueue_pre_sleep_flush_fn(struct submit_worker *sw) | |
56 | { | |
57 | struct thread_data *td = sw->private; | |
58 | ||
59 | if (td->io_u_queued || td->cur_depth || td->io_u_in_flight) | |
60 | return true; | |
61 | ||
62 | return false; | |
63 | } | |
64 | ||
65 | static void io_workqueue_pre_sleep_fn(struct submit_worker *sw) | |
66 | { | |
67 | struct thread_data *td = sw->private; | |
68 | int ret; | |
69 | ||
70 | ret = io_u_quiesce(td); | |
71 | if (ret > 0) | |
72 | td->cur_depth -= ret; | |
73 | } | |
74 | ||
75 | static int io_workqueue_alloc_fn(struct submit_worker *sw) | |
76 | { | |
77 | struct thread_data *td; | |
78 | ||
79 | td = calloc(1, sizeof(*td)); | |
80 | sw->private = td; | |
81 | return 0; | |
82 | } | |
83 | ||
84 | static void io_workqueue_free_fn(struct submit_worker *sw) | |
85 | { | |
86 | free(sw->private); | |
87 | sw->private = NULL; | |
88 | } | |
89 | ||
90 | static int io_workqueue_init_worker_fn(struct submit_worker *sw) | |
91 | { | |
92 | struct thread_data *parent = sw->wq->td; | |
93 | struct thread_data *td = sw->private; | |
94 | int fio_unused ret; | |
95 | ||
96 | memcpy(&td->o, &parent->o, sizeof(td->o)); | |
97 | memcpy(&td->ts, &parent->ts, sizeof(td->ts)); | |
98 | td->o.uid = td->o.gid = -1U; | |
99 | dup_files(td, parent); | |
100 | td->eo = parent->eo; | |
101 | fio_options_mem_dupe(td); | |
102 | ||
103 | if (ioengine_load(td)) | |
104 | goto err; | |
105 | ||
106 | if (td->o.odirect) | |
107 | td->io_ops->flags |= FIO_RAWIO; | |
108 | ||
109 | td->pid = gettid(); | |
110 | ||
111 | INIT_FLIST_HEAD(&td->io_log_list); | |
112 | INIT_FLIST_HEAD(&td->io_hist_list); | |
113 | INIT_FLIST_HEAD(&td->verify_list); | |
114 | INIT_FLIST_HEAD(&td->trim_list); | |
115 | INIT_FLIST_HEAD(&td->next_rand_list); | |
116 | td->io_hist_tree = RB_ROOT; | |
117 | ||
118 | td->o.iodepth = 1; | |
119 | if (td_io_init(td)) | |
120 | goto err_io_init; | |
121 | ||
122 | fio_gettime(&td->epoch, NULL); | |
123 | fio_getrusage(&td->ru_start); | |
124 | clear_io_state(td, 1); | |
125 | ||
126 | td_set_runstate(td, TD_RUNNING); | |
127 | td->flags |= TD_F_CHILD; | |
128 | td->parent = parent; | |
129 | return 0; | |
130 | ||
131 | err_io_init: | |
132 | close_ioengine(td); | |
133 | err: | |
134 | return 1; | |
135 | ||
136 | } | |
137 | ||
138 | static void io_workqueue_exit_worker_fn(struct submit_worker *sw, | |
139 | unsigned int *sum_cnt) | |
140 | { | |
141 | struct thread_data *td = sw->private; | |
142 | ||
143 | (*sum_cnt)++; | |
144 | sum_thread_stats(&sw->wq->td->ts, &td->ts, *sum_cnt == 1); | |
145 | ||
146 | fio_options_free(td); | |
147 | close_and_free_files(td); | |
148 | if (td->io_ops) | |
149 | close_ioengine(td); | |
150 | td_set_runstate(td, TD_EXITED); | |
151 | } | |
152 | ||
153 | #ifdef CONFIG_SFAA | |
154 | static void sum_val(uint64_t *dst, uint64_t *src) | |
155 | { | |
156 | if (*src) { | |
157 | __sync_fetch_and_add(dst, *src); | |
158 | *src = 0; | |
159 | } | |
160 | } | |
161 | #else | |
162 | static void sum_val(uint64_t *dst, uint64_t *src) | |
163 | { | |
164 | if (*src) { | |
165 | *dst += *src; | |
166 | *src = 0; | |
167 | } | |
168 | } | |
169 | #endif | |
170 | ||
171 | static void pthread_double_unlock(pthread_mutex_t *lock1, | |
172 | pthread_mutex_t *lock2) | |
173 | { | |
174 | #ifndef CONFIG_SFAA | |
175 | pthread_mutex_unlock(lock1); | |
176 | pthread_mutex_unlock(lock2); | |
177 | #endif | |
178 | } | |
179 | ||
180 | static void pthread_double_lock(pthread_mutex_t *lock1, pthread_mutex_t *lock2) | |
181 | { | |
182 | #ifndef CONFIG_SFAA | |
183 | if (lock1 < lock2) { | |
184 | pthread_mutex_lock(lock1); | |
185 | pthread_mutex_lock(lock2); | |
186 | } else { | |
187 | pthread_mutex_lock(lock2); | |
188 | pthread_mutex_lock(lock1); | |
189 | } | |
190 | #endif | |
191 | } | |
192 | ||
193 | static void sum_ddir(struct thread_data *dst, struct thread_data *src, | |
194 | enum fio_ddir ddir) | |
195 | { | |
196 | pthread_double_lock(&dst->io_wq.stat_lock, &src->io_wq.stat_lock); | |
197 | ||
198 | sum_val(&dst->io_bytes[ddir], &src->io_bytes[ddir]); | |
199 | sum_val(&dst->io_blocks[ddir], &src->io_blocks[ddir]); | |
200 | sum_val(&dst->this_io_blocks[ddir], &src->this_io_blocks[ddir]); | |
201 | sum_val(&dst->this_io_bytes[ddir], &src->this_io_bytes[ddir]); | |
202 | sum_val(&dst->bytes_done[ddir], &src->bytes_done[ddir]); | |
203 | ||
204 | pthread_double_unlock(&dst->io_wq.stat_lock, &src->io_wq.stat_lock); | |
205 | } | |
206 | ||
207 | static void io_workqueue_update_acct_fn(struct submit_worker *sw) | |
208 | { | |
209 | struct thread_data *src = sw->private; | |
210 | struct thread_data *dst = sw->wq->td; | |
211 | ||
212 | if (td_read(src)) | |
213 | sum_ddir(dst, src, DDIR_READ); | |
214 | if (td_write(src)) | |
215 | sum_ddir(dst, src, DDIR_WRITE); | |
216 | if (td_trim(src)) | |
217 | sum_ddir(dst, src, DDIR_TRIM); | |
218 | ||
219 | } | |
220 | ||
221 | struct workqueue_ops rated_wq_ops = { | |
222 | .fn = io_workqueue_fn, | |
223 | .pre_sleep_flush_fn = io_workqueue_pre_sleep_flush_fn, | |
224 | .pre_sleep_fn = io_workqueue_pre_sleep_fn, | |
225 | .update_acct_fn = io_workqueue_update_acct_fn, | |
226 | .alloc_worker_fn = io_workqueue_alloc_fn, | |
227 | .free_worker_fn = io_workqueue_free_fn, | |
228 | .init_worker_fn = io_workqueue_init_worker_fn, | |
229 | .exit_worker_fn = io_workqueue_exit_worker_fn, | |
230 | }; |