diff options
Diffstat (limited to 'xlators/performance/io-threads/src/io-threads.c')
| -rw-r--r-- | xlators/performance/io-threads/src/io-threads.c | 91 |
1 files changed, 86 insertions, 5 deletions
diff --git a/xlators/performance/io-threads/src/io-threads.c b/xlators/performance/io-threads/src/io-threads.c index 03ebc66f2..4cac36c6a 100644 --- a/xlators/performance/io-threads/src/io-threads.c +++ b/xlators/performance/io-threads/src/io-threads.c @@ -39,15 +39,19 @@ int __iot_workers_scale (iot_conf_t *conf); struct volume_options options[]; call_stub_t * -__iot_dequeue (iot_conf_t *conf) +__iot_dequeue (iot_conf_t *conf, int *pri) { call_stub_t *stub = NULL; int i = 0; + *pri = -1; for (i = 0; i < IOT_PRI_MAX; i++) { - if (list_empty (&conf->reqs[i])) + if (list_empty (&conf->reqs[i]) || + (conf->ac_iot_count[i] >= conf->ac_iot_limit[i])) continue; stub = list_entry (conf->reqs[i].next, call_stub_t, list); + conf->ac_iot_count[i]++; + *pri = i; break; } @@ -83,6 +87,7 @@ iot_worker (void *data) call_stub_t *stub = NULL; struct timespec sleep_till = {0, }; int ret = 0; + int pri = -1; char timeout = 0; char bye = 0; @@ -95,6 +100,10 @@ iot_worker (void *data) pthread_mutex_lock (&conf->mutex); { + if (pri != -1) { + conf->ac_iot_count[pri]--; + pri = -1; + } while (conf->queue_size == 0) { conf->sleep_count++; @@ -121,7 +130,7 @@ iot_worker (void *data) } } - stub = __iot_dequeue (conf); + stub = __iot_dequeue (conf, &pri); } pthread_mutex_unlock (&conf->mutex); @@ -132,6 +141,13 @@ iot_worker (void *data) break; } + if (pri != -1) { + pthread_mutex_lock (&conf->mutex); + { + conf->ac_iot_count[pri]--; + } + pthread_mutex_unlock (&conf->mutex); + } return NULL; } @@ -154,6 +170,11 @@ do_iot_schedule (iot_conf_t *conf, call_stub_t *stub, int pri) return ret; } +int +iot_schedule_least (iot_conf_t *conf, call_stub_t *stub) +{ + return do_iot_schedule (conf, stub, IOT_PRI_LEAST); +} int iot_schedule_slow (iot_conf_t *conf, call_stub_t *stub) @@ -161,7 +182,6 @@ iot_schedule_slow (iot_conf_t *conf, call_stub_t *stub) return do_iot_schedule (conf, stub, IOT_PRI_LO); } - int iot_schedule_fast (iot_conf_t *conf, call_stub_t *stub) { @@ -1970,7 +1990,7 @@ iot_rchecksum (call_frame_t *frame, xlator_t *this, fd_t *fd, off_t offset, goto out; } - ret = iot_schedule_slow (this->private, stub); + ret = iot_schedule_least (this->private, stub); out: if (ret < 0) { STACK_UNWIND_STRICT (rchecksum, frame, -1, -ret, -1, NULL); @@ -2092,6 +2112,20 @@ reconfigure (xlator_t *this, dict_t *options) GF_OPTION_RECONF ("thread-count", conf->max_count, options, int32, out); + GF_OPTION_RECONF ("high-prio-threads", + conf->ac_iot_limit[IOT_PRI_HI], options, int32, out); + + GF_OPTION_RECONF ("normal-prio-threads", + conf->ac_iot_limit[IOT_PRI_NORMAL], options, int32, + out); + + GF_OPTION_RECONF ("low-prio-threads", + conf->ac_iot_limit[IOT_PRI_LO], options, int32, out); + + GF_OPTION_RECONF ("least-prio-threads", + conf->ac_iot_limit[IOT_PRI_LEAST], options, int32, + out); + ret = 0; out: return ret; @@ -2140,6 +2174,18 @@ init (xlator_t *this) GF_OPTION_INIT ("thread-count", conf->max_count, int32, out); + GF_OPTION_INIT ("high-prio-threads", + conf->ac_iot_limit[IOT_PRI_HI], int32, out); + + GF_OPTION_INIT ("normal-prio-threads", + conf->ac_iot_limit[IOT_PRI_NORMAL], int32, out); + + GF_OPTION_INIT ("low-prio-threads", + conf->ac_iot_limit[IOT_PRI_LO], int32, out); + + GF_OPTION_INIT ("least-prio-threads", + conf->ac_iot_limit[IOT_PRI_LEAST], int32, out); + GF_OPTION_INIT ("idle-time", conf->idle_time, int32, out); conf->this = this; @@ -2228,6 +2274,41 @@ struct volume_options options[] = { "perform concurrent IO operations" }, + { .key = {"high-prio-threads"}, + .type = GF_OPTION_TYPE_INT, + .min = IOT_MIN_THREADS, + .max = IOT_MAX_THREADS, + .default_value = "16", + .description = "Max number of threads in IO threads translator which " + "perform high priority IO operations at a given time" + + }, + { .key = {"normal-prio-threads"}, + .type = GF_OPTION_TYPE_INT, + .min = IOT_MIN_THREADS, + .max = IOT_MAX_THREADS, + .default_value = "16", + .description = "Max number of threads in IO threads translator which " + "perform normal priority IO operations at a given time" + + }, + { .key = {"low-prio-threads"}, + .type = GF_OPTION_TYPE_INT, + .min = IOT_MIN_THREADS, + .max = IOT_MAX_THREADS, + .default_value = "16", + .description = "Max number of threads in IO threads translator which " + "perform low priority IO operations at a given time" + + }, + { .key = {"least-prio-threads"}, + .type = GF_OPTION_TYPE_INT, + .min = IOT_MIN_THREADS, + .max = IOT_MAX_THREADS, + .default_value = "1", + .description = "Max number of threads in IO threads translator which " + "perform least priority IO operations at a given time" + }, {.key = {"idle-time"}, .type = GF_OPTION_TYPE_INT, .min = 1, |