ioengines.c revision 7101d9c24abec4be58a086d85d6d92ec6e6492e9
1ebac4655dd3624f3296ff83be48e0cdc02852f1Jens Axboe/* 2ebac4655dd3624f3296ff83be48e0cdc02852f1Jens Axboe * The io parts of the fio tool, includes workers for sync and mmap'ed 3ebac4655dd3624f3296ff83be48e0cdc02852f1Jens Axboe * io, as well as both posix and linux libaio support. 4ebac4655dd3624f3296ff83be48e0cdc02852f1Jens Axboe * 5ebac4655dd3624f3296ff83be48e0cdc02852f1Jens Axboe * sync io is implemented on top of aio. 6ebac4655dd3624f3296ff83be48e0cdc02852f1Jens Axboe * 7ebac4655dd3624f3296ff83be48e0cdc02852f1Jens Axboe * This is not really specific to fio, if the get_io_u/put_io_u and 8ebac4655dd3624f3296ff83be48e0cdc02852f1Jens Axboe * structures was pulled into this as well it would be a perfectly 9ebac4655dd3624f3296ff83be48e0cdc02852f1Jens Axboe * generic io engine that could be used for other projects. 10ebac4655dd3624f3296ff83be48e0cdc02852f1Jens Axboe * 11ebac4655dd3624f3296ff83be48e0cdc02852f1Jens Axboe */ 12ebac4655dd3624f3296ff83be48e0cdc02852f1Jens Axboe#include <stdio.h> 13ebac4655dd3624f3296ff83be48e0cdc02852f1Jens Axboe#include <stdlib.h> 14ebac4655dd3624f3296ff83be48e0cdc02852f1Jens Axboe#include <unistd.h> 155c4e1dbc4ec6ee963220c5f4e64a04cd6130dc81Jens Axboe#include <string.h> 162866c82d598e30604d8a92723c664ee6ced90fb0Jens Axboe#include <dlfcn.h> 170c6e75175bcaf8d05bfa88aa8caa584fbb848b74Jens Axboe#include <assert.h> 188c16d840377c1e6fb79f479ee60590a2da5b52eeJens Axboe 19ebac4655dd3624f3296ff83be48e0cdc02852f1Jens Axboe#include "fio.h" 20ebac4655dd3624f3296ff83be48e0cdc02852f1Jens Axboe 215f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboestatic LIST_HEAD(engine_list); 225f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe 238c16d840377c1e6fb79f479ee60590a2da5b52eeJens Axboestatic int check_engine_ops(struct ioengine_ops *ops) 248c16d840377c1e6fb79f479ee60590a2da5b52eeJens Axboe{ 255f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe if (ops->version != FIO_IOOPS_VERSION) { 265f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe log_err("bad ioops version %d (want %d)\n", ops->version, FIO_IOOPS_VERSION); 275f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe return 1; 285f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe } 295f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe 3036167d82e5f49dee91c6d2cd426068edee90e36fJens Axboe if (!ops->queue) { 3136167d82e5f49dee91c6d2cd426068edee90e36fJens Axboe log_err("%s: no queue handler\n", ops->name); 3236167d82e5f49dee91c6d2cd426068edee90e36fJens Axboe return 1; 3336167d82e5f49dee91c6d2cd426068edee90e36fJens Axboe } 3436167d82e5f49dee91c6d2cd426068edee90e36fJens Axboe 3536167d82e5f49dee91c6d2cd426068edee90e36fJens Axboe /* 3636167d82e5f49dee91c6d2cd426068edee90e36fJens Axboe * sync engines only need a ->queue() 3736167d82e5f49dee91c6d2cd426068edee90e36fJens Axboe */ 3836167d82e5f49dee91c6d2cd426068edee90e36fJens Axboe if (ops->flags & FIO_SYNCIO) 3936167d82e5f49dee91c6d2cd426068edee90e36fJens Axboe return 0; 4036167d82e5f49dee91c6d2cd426068edee90e36fJens Axboe 418c16d840377c1e6fb79f479ee60590a2da5b52eeJens Axboe if (!ops->event) { 4236167d82e5f49dee91c6d2cd426068edee90e36fJens Axboe log_err("%s: no event handler\n", ops->name); 438c16d840377c1e6fb79f479ee60590a2da5b52eeJens Axboe return 1; 448c16d840377c1e6fb79f479ee60590a2da5b52eeJens Axboe } 458c16d840377c1e6fb79f479ee60590a2da5b52eeJens Axboe if (!ops->getevents) { 4636167d82e5f49dee91c6d2cd426068edee90e36fJens Axboe log_err("%s: no getevents handler\n", ops->name); 478c16d840377c1e6fb79f479ee60590a2da5b52eeJens Axboe return 1; 488c16d840377c1e6fb79f479ee60590a2da5b52eeJens Axboe } 498c16d840377c1e6fb79f479ee60590a2da5b52eeJens Axboe if (!ops->queue) { 5036167d82e5f49dee91c6d2cd426068edee90e36fJens Axboe log_err("%s: no queue handler\n", ops->name); 518c16d840377c1e6fb79f479ee60590a2da5b52eeJens Axboe return 1; 528c16d840377c1e6fb79f479ee60590a2da5b52eeJens Axboe } 538c16d840377c1e6fb79f479ee60590a2da5b52eeJens Axboe 548c16d840377c1e6fb79f479ee60590a2da5b52eeJens Axboe return 0; 558c16d840377c1e6fb79f479ee60590a2da5b52eeJens Axboe} 568c16d840377c1e6fb79f479ee60590a2da5b52eeJens Axboe 575f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboevoid unregister_ioengine(struct ioengine_ops *ops) 58ebac4655dd3624f3296ff83be48e0cdc02852f1Jens Axboe{ 595f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe list_del(&ops->list); 605f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe INIT_LIST_HEAD(&ops->list); 615f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe} 625f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe 63b2fdda43cf0699f60e711429c778ff1685e30062Jens Axboevoid register_ioengine(struct ioengine_ops *ops) 645f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe{ 655f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe INIT_LIST_HEAD(&ops->list); 665f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe list_add_tail(&ops->list, &engine_list); 675f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe} 685f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe 695f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboestatic struct ioengine_ops *find_ioengine(const char *name) 705f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe{ 715f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe struct ioengine_ops *ops; 725f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe struct list_head *entry; 73ebac4655dd3624f3296ff83be48e0cdc02852f1Jens Axboe 745f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe list_for_each(entry, &engine_list) { 755f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe ops = list_entry(entry, struct ioengine_ops, list); 76bc5b77a8c46aabea554c4a2c8cca37f27f97969aJens Axboe if (!strcmp(name, ops->name)) 775f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe return ops; 785f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe } 795f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe 805f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe return NULL; 815f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe} 825f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe 835f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboestatic struct ioengine_ops *dlopen_ioengine(struct thread_data *td, 845f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe const char *engine_lib) 855f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe{ 865f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe struct ioengine_ops *ops; 875f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe void *dlhandle; 885f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe 892866c82d598e30604d8a92723c664ee6ced90fb0Jens Axboe dlerror(); 902866c82d598e30604d8a92723c664ee6ced90fb0Jens Axboe dlhandle = dlopen(engine_lib, RTLD_LAZY); 91d4dbaaa821b9d3dd34ca002d1976d4f924a07a47Jens Axboe if (!dlhandle) { 92e1161c325f7866bae879e686d1c673ca32ab09aeJens Axboe td_vmsg(td, -1, dlerror(), "dlopen"); 93d4dbaaa821b9d3dd34ca002d1976d4f924a07a47Jens Axboe return NULL; 94d4dbaaa821b9d3dd34ca002d1976d4f924a07a47Jens Axboe } 958756e4d421722eaeb089067aeaaf317d05d53a57Jens Axboe 96da51c0505c753f64ad5f65808377b8f67b445828Jens Axboe /* 97da51c0505c753f64ad5f65808377b8f67b445828Jens Axboe * Unlike the included modules, external engines should have a 98da51c0505c753f64ad5f65808377b8f67b445828Jens Axboe * non-static ioengine structure that we can reference. 99da51c0505c753f64ad5f65808377b8f67b445828Jens Axboe */ 1002866c82d598e30604d8a92723c664ee6ced90fb0Jens Axboe ops = dlsym(dlhandle, "ioengine"); 101d4dbaaa821b9d3dd34ca002d1976d4f924a07a47Jens Axboe if (!ops) { 102e1161c325f7866bae879e686d1c673ca32ab09aeJens Axboe td_vmsg(td, -1, dlerror(), "dlsym"); 103d4dbaaa821b9d3dd34ca002d1976d4f924a07a47Jens Axboe dlclose(dlhandle); 104d4dbaaa821b9d3dd34ca002d1976d4f924a07a47Jens Axboe return NULL; 105d4dbaaa821b9d3dd34ca002d1976d4f924a07a47Jens Axboe } 1068756e4d421722eaeb089067aeaaf317d05d53a57Jens Axboe 1075f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe ops->dlhandle = dlhandle; 1085f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe return ops; 1095f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe} 1105f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe 1115f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboestruct ioengine_ops *load_ioengine(struct thread_data *td, const char *name) 1125f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe{ 1135f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe struct ioengine_ops *ops, *ret; 1145f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe char engine[16]; 1155f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe 1165f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe strncpy(engine, name, sizeof(engine) - 1); 1175f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe 1185f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe /* 1195f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe * linux libaio has alias names, so convert to what we want 1205f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe */ 1215f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe if (!strncmp(engine, "linuxaio", 8) || !strncmp(engine, "aio", 3)) 1225f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe strcpy(engine, "libaio"); 1235f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe 1245f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe ops = find_ioengine(engine); 1255f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe if (!ops) 1265f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe ops = dlopen_ioengine(td, name); 1275f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe 1285f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe if (!ops) { 1295f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe log_err("fio: engine %s not loadable\n", name); 130b902ceb53977a12062c615ab529ca0c3422e3cffJens Axboe return NULL; 131b902ceb53977a12062c615ab529ca0c3422e3cffJens Axboe } 132b902ceb53977a12062c615ab529ca0c3422e3cffJens Axboe 1338c16d840377c1e6fb79f479ee60590a2da5b52eeJens Axboe /* 1348c16d840377c1e6fb79f479ee60590a2da5b52eeJens Axboe * Check that the required methods are there. 1358c16d840377c1e6fb79f479ee60590a2da5b52eeJens Axboe */ 1365f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe if (check_engine_ops(ops)) 1378c16d840377c1e6fb79f479ee60590a2da5b52eeJens Axboe return NULL; 1388c16d840377c1e6fb79f479ee60590a2da5b52eeJens Axboe 13984585003d025a38b91749cb0d68f6b5653d1f1a3Jens Axboe ret = malloc(sizeof(*ret)); 14084585003d025a38b91749cb0d68f6b5653d1f1a3Jens Axboe memcpy(ret, ops, sizeof(*ret)); 14184585003d025a38b91749cb0d68f6b5653d1f1a3Jens Axboe ret->data = NULL; 14284585003d025a38b91749cb0d68f6b5653d1f1a3Jens Axboe 14384585003d025a38b91749cb0d68f6b5653d1f1a3Jens Axboe return ret; 1448756e4d421722eaeb089067aeaaf317d05d53a57Jens Axboe} 1458756e4d421722eaeb089067aeaaf317d05d53a57Jens Axboe 1462866c82d598e30604d8a92723c664ee6ced90fb0Jens Axboevoid close_ioengine(struct thread_data *td) 1478756e4d421722eaeb089067aeaaf317d05d53a57Jens Axboe{ 1482866c82d598e30604d8a92723c664ee6ced90fb0Jens Axboe if (td->io_ops->cleanup) 1492866c82d598e30604d8a92723c664ee6ced90fb0Jens Axboe td->io_ops->cleanup(td); 150b990b5c06801d6d25e3fcc5415efbbe7bb23341eJens Axboe 1515f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe if (td->io_ops->dlhandle) 1525f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe dlclose(td->io_ops->dlhandle); 1535f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe 15484585003d025a38b91749cb0d68f6b5653d1f1a3Jens Axboe free(td->io_ops); 15584585003d025a38b91749cb0d68f6b5653d1f1a3Jens Axboe td->io_ops = NULL; 156b990b5c06801d6d25e3fcc5415efbbe7bb23341eJens Axboe} 15710ba535a5cbb95b5576e33a6f8af093a6ca3bfd7Jens Axboe 15810ba535a5cbb95b5576e33a6f8af093a6ca3bfd7Jens Axboeint td_io_prep(struct thread_data *td, struct io_u *io_u) 15910ba535a5cbb95b5576e33a6f8af093a6ca3bfd7Jens Axboe{ 1607101d9c24abec4be58a086d85d6d92ec6e6492e9Jens Axboe fio_ro_check(td, io_u); 1617101d9c24abec4be58a086d85d6d92ec6e6492e9Jens Axboe 16236167d82e5f49dee91c6d2cd426068edee90e36fJens Axboe if (td->io_ops->prep) 16336167d82e5f49dee91c6d2cd426068edee90e36fJens Axboe return td->io_ops->prep(td, io_u); 16410ba535a5cbb95b5576e33a6f8af093a6ca3bfd7Jens Axboe 16510ba535a5cbb95b5576e33a6f8af093a6ca3bfd7Jens Axboe return 0; 16610ba535a5cbb95b5576e33a6f8af093a6ca3bfd7Jens Axboe} 16710ba535a5cbb95b5576e33a6f8af093a6ca3bfd7Jens Axboe 16810ba535a5cbb95b5576e33a6f8af093a6ca3bfd7Jens Axboeint td_io_getevents(struct thread_data *td, int min, int max, 16910ba535a5cbb95b5576e33a6f8af093a6ca3bfd7Jens Axboe struct timespec *t) 17010ba535a5cbb95b5576e33a6f8af093a6ca3bfd7Jens Axboe{ 171face81b280ab94ba5d975739578779157c8b54ceJens Axboe if (min > 0 && td->io_ops->commit) { 172face81b280ab94ba5d975739578779157c8b54ceJens Axboe int r = td->io_ops->commit(td); 173face81b280ab94ba5d975739578779157c8b54ceJens Axboe 174face81b280ab94ba5d975739578779157c8b54ceJens Axboe if (r < 0) 175face81b280ab94ba5d975739578779157c8b54ceJens Axboe return r; 176face81b280ab94ba5d975739578779157c8b54ceJens Axboe } 17736167d82e5f49dee91c6d2cd426068edee90e36fJens Axboe if (td->io_ops->getevents) 17836167d82e5f49dee91c6d2cd426068edee90e36fJens Axboe return td->io_ops->getevents(td, min, max, t); 17936167d82e5f49dee91c6d2cd426068edee90e36fJens Axboe 18036167d82e5f49dee91c6d2cd426068edee90e36fJens Axboe return 0; 18110ba535a5cbb95b5576e33a6f8af093a6ca3bfd7Jens Axboe} 18210ba535a5cbb95b5576e33a6f8af093a6ca3bfd7Jens Axboe 18310ba535a5cbb95b5576e33a6f8af093a6ca3bfd7Jens Axboeint td_io_queue(struct thread_data *td, struct io_u *io_u) 18410ba535a5cbb95b5576e33a6f8af093a6ca3bfd7Jens Axboe{ 1857e77dd026d85253936aef432ba8f3e89b96b805cJens Axboe int ret; 1867e77dd026d85253936aef432ba8f3e89b96b805cJens Axboe 1877101d9c24abec4be58a086d85d6d92ec6e6492e9Jens Axboe fio_ro_check(td, io_u); 1887101d9c24abec4be58a086d85d6d92ec6e6492e9Jens Axboe 1890c6e75175bcaf8d05bfa88aa8caa584fbb848b74Jens Axboe assert((io_u->flags & IO_U_F_FLIGHT) == 0); 1900c6e75175bcaf8d05bfa88aa8caa584fbb848b74Jens Axboe io_u->flags |= IO_U_F_FLIGHT; 1910c6e75175bcaf8d05bfa88aa8caa584fbb848b74Jens Axboe 1923d7b485f9478ed5d291ec58a16a40781ae3ab4aeJens Axboe assert(io_u->file->flags & FIO_FILE_OPEN); 1933d7b485f9478ed5d291ec58a16a40781ae3ab4aeJens Axboe 194117868024939609aebd94fff5afacfd29b2f9a6fJens Axboe io_u->error = 0; 195117868024939609aebd94fff5afacfd29b2f9a6fJens Axboe io_u->resid = 0; 196117868024939609aebd94fff5afacfd29b2f9a6fJens Axboe 197433afcb4fe81e775c15af9d39a6f4db8a53d693aJens Axboe if (td->io_ops->flags & FIO_SYNCIO) { 1985aeb77df5d75d1065b339c47afbd882a3c04702eJens Axboe fio_gettime(&io_u->issue_time, NULL); 199a61eddecca21d19f3f4c297400d6c5d93dc29259Jens Axboe memcpy(&td->last_issue, &io_u->issue_time, sizeof(struct timeval)); 20010ba535a5cbb95b5576e33a6f8af093a6ca3bfd7Jens Axboe 201433afcb4fe81e775c15af9d39a6f4db8a53d693aJens Axboe /* 202433afcb4fe81e775c15af9d39a6f4db8a53d693aJens Axboe * for a sync engine, set the timeout upfront 203433afcb4fe81e775c15af9d39a6f4db8a53d693aJens Axboe */ 204433afcb4fe81e775c15af9d39a6f4db8a53d693aJens Axboe if (mtime_since(&td->timeout_end, &io_u->issue_time) < IO_U_TIMEOUT) 205433afcb4fe81e775c15af9d39a6f4db8a53d693aJens Axboe io_u_set_timeout(td); 206433afcb4fe81e775c15af9d39a6f4db8a53d693aJens Axboe } 207433afcb4fe81e775c15af9d39a6f4db8a53d693aJens Axboe 208755200a326a33e5e19b16dfd5e013dd98bcf1916Jens Axboe if (io_u->ddir != DDIR_SYNC) 209755200a326a33e5e19b16dfd5e013dd98bcf1916Jens Axboe td->io_issues[io_u->ddir]++; 210755200a326a33e5e19b16dfd5e013dd98bcf1916Jens Axboe 211b3605062146bce0136918763bb8eb584478ae042Jens Axboe io_u_mark_depth(td, io_u); 212b3605062146bce0136918763bb8eb584478ae042Jens Axboe 2137e77dd026d85253936aef432ba8f3e89b96b805cJens Axboe ret = td->io_ops->queue(td, io_u); 2145aeb77df5d75d1065b339c47afbd882a3c04702eJens Axboe 215eb7c8ae27bc301b77490b3586dd5ccab7c95880aJens Axboe if (ret == FIO_Q_QUEUED) { 216eb7c8ae27bc301b77490b3586dd5ccab7c95880aJens Axboe int r; 217eb7c8ae27bc301b77490b3586dd5ccab7c95880aJens Axboe 218cb5ab5121ac4fa62e0ca2612b359f19bfdd30f29Jens Axboe td->io_u_queued++; 2192dc1bbeb58edc85f2829eed6729862c438ea2353Jens Axboe if (td->io_u_queued > td->o.iodepth_batch) { 220eb7c8ae27bc301b77490b3586dd5ccab7c95880aJens Axboe r = td_io_commit(td); 221eb7c8ae27bc301b77490b3586dd5ccab7c95880aJens Axboe if (r < 0) 222eb7c8ae27bc301b77490b3586dd5ccab7c95880aJens Axboe return r; 223eb7c8ae27bc301b77490b3586dd5ccab7c95880aJens Axboe } 224eb7c8ae27bc301b77490b3586dd5ccab7c95880aJens Axboe } 225cb5ab5121ac4fa62e0ca2612b359f19bfdd30f29Jens Axboe 226433afcb4fe81e775c15af9d39a6f4db8a53d693aJens Axboe if ((td->io_ops->flags & FIO_SYNCIO) == 0) { 2275aeb77df5d75d1065b339c47afbd882a3c04702eJens Axboe fio_gettime(&io_u->issue_time, NULL); 228a61eddecca21d19f3f4c297400d6c5d93dc29259Jens Axboe memcpy(&td->last_issue, &io_u->issue_time, sizeof(struct timeval)); 2295aeb77df5d75d1065b339c47afbd882a3c04702eJens Axboe 230433afcb4fe81e775c15af9d39a6f4db8a53d693aJens Axboe /* 231433afcb4fe81e775c15af9d39a6f4db8a53d693aJens Axboe * async engine, set the timeout here 232433afcb4fe81e775c15af9d39a6f4db8a53d693aJens Axboe */ 233433afcb4fe81e775c15af9d39a6f4db8a53d693aJens Axboe if (ret == FIO_Q_QUEUED && 234433afcb4fe81e775c15af9d39a6f4db8a53d693aJens Axboe mtime_since(&td->timeout_end, &io_u->issue_time) < IO_U_TIMEOUT) 235433afcb4fe81e775c15af9d39a6f4db8a53d693aJens Axboe io_u_set_timeout(td); 236433afcb4fe81e775c15af9d39a6f4db8a53d693aJens Axboe } 237433afcb4fe81e775c15af9d39a6f4db8a53d693aJens Axboe 2387e77dd026d85253936aef432ba8f3e89b96b805cJens Axboe return ret; 23910ba535a5cbb95b5576e33a6f8af093a6ca3bfd7Jens Axboe} 2408c16d840377c1e6fb79f479ee60590a2da5b52eeJens Axboe 2418c16d840377c1e6fb79f479ee60590a2da5b52eeJens Axboeint td_io_init(struct thread_data *td) 2428c16d840377c1e6fb79f479ee60590a2da5b52eeJens Axboe{ 243eeb121607c2a7f36b0fac17649cb8081d6fd853bJens Axboe int ret = 0; 2448c16d840377c1e6fb79f479ee60590a2da5b52eeJens Axboe 245eeb121607c2a7f36b0fac17649cb8081d6fd853bJens Axboe if (td->io_ops->init) { 246eeb121607c2a7f36b0fac17649cb8081d6fd853bJens Axboe ret = td->io_ops->init(td); 247eeb121607c2a7f36b0fac17649cb8081d6fd853bJens Axboe if (ret && td->o.iodepth > 1) 248eeb121607c2a7f36b0fac17649cb8081d6fd853bJens Axboe log_err("fio: io engine init failed. Perhaps try reducing io dpeth?\n"); 249eeb121607c2a7f36b0fac17649cb8081d6fd853bJens Axboe } 250eeb121607c2a7f36b0fac17649cb8081d6fd853bJens Axboe 251eeb121607c2a7f36b0fac17649cb8081d6fd853bJens Axboe return ret; 2528c16d840377c1e6fb79f479ee60590a2da5b52eeJens Axboe} 253755200a326a33e5e19b16dfd5e013dd98bcf1916Jens Axboe 254755200a326a33e5e19b16dfd5e013dd98bcf1916Jens Axboeint td_io_commit(struct thread_data *td) 255755200a326a33e5e19b16dfd5e013dd98bcf1916Jens Axboe{ 256e1161c325f7866bae879e686d1c673ca32ab09aeJens Axboe if (!td->cur_depth) 257e1161c325f7866bae879e686d1c673ca32ab09aeJens Axboe return 0; 258cb5ab5121ac4fa62e0ca2612b359f19bfdd30f29Jens Axboe 259cb5ab5121ac4fa62e0ca2612b359f19bfdd30f29Jens Axboe td->io_u_queued = 0; 260755200a326a33e5e19b16dfd5e013dd98bcf1916Jens Axboe if (td->io_ops->commit) 261755200a326a33e5e19b16dfd5e013dd98bcf1916Jens Axboe return td->io_ops->commit(td); 262755200a326a33e5e19b16dfd5e013dd98bcf1916Jens Axboe 263755200a326a33e5e19b16dfd5e013dd98bcf1916Jens Axboe return 0; 264755200a326a33e5e19b16dfd5e013dd98bcf1916Jens Axboe} 265b5af82930ccfd7dda6a1b11794efb452eb76d8dcJens Axboe 266b5af82930ccfd7dda6a1b11794efb452eb76d8dcJens Axboeint td_io_open_file(struct thread_data *td, struct fio_file *f) 267b5af82930ccfd7dda6a1b11794efb452eb76d8dcJens Axboe{ 268413d669320995eaef092c58e67cdb7b500134551Jens Axboe if (td->io_ops->open_file(td, f)) { 269413d669320995eaef092c58e67cdb7b500134551Jens Axboe if (td->error == EINVAL && td->o.odirect) 270413d669320995eaef092c58e67cdb7b500134551Jens Axboe log_err("fio: destination does not support O_DIRECT\n"); 271413d669320995eaef092c58e67cdb7b500134551Jens Axboe if (td->error == EMFILE) 272413d669320995eaef092c58e67cdb7b500134551Jens Axboe log_err("fio: try reducing/setting openfiles (failed at %u of %u)\n", td->nr_open_files, td->o.nr_files); 273413d669320995eaef092c58e67cdb7b500134551Jens Axboe 274413d669320995eaef092c58e67cdb7b500134551Jens Axboe return 1; 275413d669320995eaef092c58e67cdb7b500134551Jens Axboe } 276413d669320995eaef092c58e67cdb7b500134551Jens Axboe 277661598287ecc3b8987f312cf8403936552ce686aJens Axboe if (f->filetype == FIO_TYPE_PIPE) { 278661598287ecc3b8987f312cf8403936552ce686aJens Axboe if (td_random(td)) { 279661598287ecc3b8987f312cf8403936552ce686aJens Axboe log_err("fio: can't seek on pipes (no random io)\n"); 280661598287ecc3b8987f312cf8403936552ce686aJens Axboe goto err; 281661598287ecc3b8987f312cf8403936552ce686aJens Axboe } 282661598287ecc3b8987f312cf8403936552ce686aJens Axboe } 283661598287ecc3b8987f312cf8403936552ce686aJens Axboe 284413d669320995eaef092c58e67cdb7b500134551Jens Axboe f->last_free_lookup = 0; 285413d669320995eaef092c58e67cdb7b500134551Jens Axboe f->last_completed_pos = 0; 286bcdedd0ac6e9413258b608ecb3511867b1a9c534ljzhang,Yaxin Hu,Jianchao Tang f->last_pos = f->file_offset; 287413d669320995eaef092c58e67cdb7b500134551Jens Axboe f->flags |= FIO_FILE_OPEN; 288413d669320995eaef092c58e67cdb7b500134551Jens Axboe f->flags &= ~FIO_FILE_CLOSING; 289413d669320995eaef092c58e67cdb7b500134551Jens Axboe 290413d669320995eaef092c58e67cdb7b500134551Jens Axboe if (td->io_ops->flags & FIO_DISKLESSIO) 291413d669320995eaef092c58e67cdb7b500134551Jens Axboe goto done; 292413d669320995eaef092c58e67cdb7b500134551Jens Axboe 293413d669320995eaef092c58e67cdb7b500134551Jens Axboe if (td->o.invalidate_cache && file_invalidate_cache(td, f)) 294413d669320995eaef092c58e67cdb7b500134551Jens Axboe goto err; 295413d669320995eaef092c58e67cdb7b500134551Jens Axboe 296661598287ecc3b8987f312cf8403936552ce686aJens Axboe if (td->o.fadvise_hint && 297661598287ecc3b8987f312cf8403936552ce686aJens Axboe (f->filetype == FIO_TYPE_BD || f->filetype == FIO_TYPE_FILE)) { 298661598287ecc3b8987f312cf8403936552ce686aJens Axboe 299413d669320995eaef092c58e67cdb7b500134551Jens Axboe int flags; 300413d669320995eaef092c58e67cdb7b500134551Jens Axboe 301413d669320995eaef092c58e67cdb7b500134551Jens Axboe if (td_random(td)) 302413d669320995eaef092c58e67cdb7b500134551Jens Axboe flags = POSIX_FADV_RANDOM; 303413d669320995eaef092c58e67cdb7b500134551Jens Axboe else 304413d669320995eaef092c58e67cdb7b500134551Jens Axboe flags = POSIX_FADV_SEQUENTIAL; 305413d669320995eaef092c58e67cdb7b500134551Jens Axboe 306413d669320995eaef092c58e67cdb7b500134551Jens Axboe if (fadvise(f->fd, f->file_offset, f->io_size, flags) < 0) { 307413d669320995eaef092c58e67cdb7b500134551Jens Axboe td_verror(td, errno, "fadvise"); 308413d669320995eaef092c58e67cdb7b500134551Jens Axboe goto err; 309413d669320995eaef092c58e67cdb7b500134551Jens Axboe } 3107bb48f84ac78cac1f90e3e04d0220d90d6a64a6bJens Axboe } 311a978ba684deb758465a0ccb18a008797636e8054Jens Axboe 312413d669320995eaef092c58e67cdb7b500134551Jens Axboe if (f->file_map) 313413d669320995eaef092c58e67cdb7b500134551Jens Axboe memset(f->file_map, 0, f->num_maps * sizeof(long)); 314a978ba684deb758465a0ccb18a008797636e8054Jens Axboe 315413d669320995eaef092c58e67cdb7b500134551Jens Axboedone: 316f29b25a370598d387e539c3dcae126274c6cbf4dJens Axboe log_file(td, f, FIO_LOG_OPEN_FILE); 317413d669320995eaef092c58e67cdb7b500134551Jens Axboe td->nr_open_files++; 318413d669320995eaef092c58e67cdb7b500134551Jens Axboe get_file(f); 319413d669320995eaef092c58e67cdb7b500134551Jens Axboe return 0; 320413d669320995eaef092c58e67cdb7b500134551Jens Axboeerr: 321b284075ab5414220496f396dff038003e57e3047Jens Axboe if (td->io_ops->close_file) 322b284075ab5414220496f396dff038003e57e3047Jens Axboe td->io_ops->close_file(td, f); 3237bb48f84ac78cac1f90e3e04d0220d90d6a64a6bJens Axboe return 1; 324b5af82930ccfd7dda6a1b11794efb452eb76d8dcJens Axboe} 325b5af82930ccfd7dda6a1b11794efb452eb76d8dcJens Axboe 326b5af82930ccfd7dda6a1b11794efb452eb76d8dcJens Axboevoid td_io_close_file(struct thread_data *td, struct fio_file *f) 327b5af82930ccfd7dda6a1b11794efb452eb76d8dcJens Axboe{ 328f29b25a370598d387e539c3dcae126274c6cbf4dJens Axboe if (!(f->flags & FIO_FILE_CLOSING)) 329f29b25a370598d387e539c3dcae126274c6cbf4dJens Axboe log_file(td, f, FIO_LOG_CLOSE_FILE); 330f29b25a370598d387e539c3dcae126274c6cbf4dJens Axboe 3310ad920e7f85db1fdc26649be6bc7e584e8c7fdc9Jens Axboe /* 3320ad920e7f85db1fdc26649be6bc7e584e8c7fdc9Jens Axboe * mark as closing, do real close when last io on it has completed 3330ad920e7f85db1fdc26649be6bc7e584e8c7fdc9Jens Axboe */ 3340ad920e7f85db1fdc26649be6bc7e584e8c7fdc9Jens Axboe f->flags |= FIO_FILE_CLOSING; 3350ad920e7f85db1fdc26649be6bc7e584e8c7fdc9Jens Axboe 3360ad920e7f85db1fdc26649be6bc7e584e8c7fdc9Jens Axboe put_file(td, f); 337b5af82930ccfd7dda6a1b11794efb452eb76d8dcJens Axboe} 338