ioengines.c revision 7c9b1bce094d58c374b086bbb780c08265623ea4
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" 207c9b1bce094d58c374b086bbb780c08265623ea4Jens Axboe#include "diskutil.h" 21ebac4655dd3624f3296ff83be48e0cdc02852f1Jens Axboe 2201743ee1718e7ec4b16ae3e53c8f64900c6052ccJens Axboestatic FLIST_HEAD(engine_list); 235f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe 248c16d840377c1e6fb79f479ee60590a2da5b52eeJens Axboestatic int check_engine_ops(struct ioengine_ops *ops) 258c16d840377c1e6fb79f479ee60590a2da5b52eeJens Axboe{ 265f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe if (ops->version != FIO_IOOPS_VERSION) { 275ec10eaad3b09875b91e19a20bbdfa06f2117562Jens Axboe log_err("bad ioops version %d (want %d)\n", ops->version, 285ec10eaad3b09875b91e19a20bbdfa06f2117562Jens Axboe FIO_IOOPS_VERSION); 295f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe return 1; 305f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe } 315f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe 3236167d82e5f49dee91c6d2cd426068edee90e36fJens Axboe if (!ops->queue) { 3336167d82e5f49dee91c6d2cd426068edee90e36fJens Axboe log_err("%s: no queue handler\n", ops->name); 3436167d82e5f49dee91c6d2cd426068edee90e36fJens Axboe return 1; 3536167d82e5f49dee91c6d2cd426068edee90e36fJens Axboe } 3636167d82e5f49dee91c6d2cd426068edee90e36fJens Axboe 3736167d82e5f49dee91c6d2cd426068edee90e36fJens Axboe /* 3836167d82e5f49dee91c6d2cd426068edee90e36fJens Axboe * sync engines only need a ->queue() 3936167d82e5f49dee91c6d2cd426068edee90e36fJens Axboe */ 4036167d82e5f49dee91c6d2cd426068edee90e36fJens Axboe if (ops->flags & FIO_SYNCIO) 4136167d82e5f49dee91c6d2cd426068edee90e36fJens Axboe return 0; 425ec10eaad3b09875b91e19a20bbdfa06f2117562Jens Axboe 438c16d840377c1e6fb79f479ee60590a2da5b52eeJens Axboe if (!ops->event) { 4436167d82e5f49dee91c6d2cd426068edee90e36fJens Axboe log_err("%s: no event handler\n", ops->name); 458c16d840377c1e6fb79f479ee60590a2da5b52eeJens Axboe return 1; 468c16d840377c1e6fb79f479ee60590a2da5b52eeJens Axboe } 478c16d840377c1e6fb79f479ee60590a2da5b52eeJens Axboe if (!ops->getevents) { 4836167d82e5f49dee91c6d2cd426068edee90e36fJens Axboe log_err("%s: no getevents handler\n", ops->name); 498c16d840377c1e6fb79f479ee60590a2da5b52eeJens Axboe return 1; 508c16d840377c1e6fb79f479ee60590a2da5b52eeJens Axboe } 518c16d840377c1e6fb79f479ee60590a2da5b52eeJens Axboe if (!ops->queue) { 5236167d82e5f49dee91c6d2cd426068edee90e36fJens Axboe log_err("%s: no queue handler\n", ops->name); 538c16d840377c1e6fb79f479ee60590a2da5b52eeJens Axboe return 1; 548c16d840377c1e6fb79f479ee60590a2da5b52eeJens Axboe } 555ec10eaad3b09875b91e19a20bbdfa06f2117562Jens Axboe 568c16d840377c1e6fb79f479ee60590a2da5b52eeJens Axboe return 0; 578c16d840377c1e6fb79f479ee60590a2da5b52eeJens Axboe} 588c16d840377c1e6fb79f479ee60590a2da5b52eeJens Axboe 595f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboevoid unregister_ioengine(struct ioengine_ops *ops) 60ebac4655dd3624f3296ff83be48e0cdc02852f1Jens Axboe{ 61ee56ad500f6692381e131cc37299d23fa910a24aJens Axboe dprint(FD_IO, "ioengine %s unregistered\n", ops->name); 6201743ee1718e7ec4b16ae3e53c8f64900c6052ccJens Axboe flist_del(&ops->list); 6301743ee1718e7ec4b16ae3e53c8f64900c6052ccJens Axboe INIT_FLIST_HEAD(&ops->list); 645f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe} 655f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe 66b2fdda43cf0699f60e711429c778ff1685e30062Jens Axboevoid register_ioengine(struct ioengine_ops *ops) 675f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe{ 68ee56ad500f6692381e131cc37299d23fa910a24aJens Axboe dprint(FD_IO, "ioengine %s registered\n", ops->name); 6901743ee1718e7ec4b16ae3e53c8f64900c6052ccJens Axboe INIT_FLIST_HEAD(&ops->list); 7001743ee1718e7ec4b16ae3e53c8f64900c6052ccJens Axboe flist_add_tail(&ops->list, &engine_list); 715f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe} 725f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe 735f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboestatic struct ioengine_ops *find_ioengine(const char *name) 745f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe{ 755f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe struct ioengine_ops *ops; 7601743ee1718e7ec4b16ae3e53c8f64900c6052ccJens Axboe struct flist_head *entry; 77ebac4655dd3624f3296ff83be48e0cdc02852f1Jens Axboe 7801743ee1718e7ec4b16ae3e53c8f64900c6052ccJens Axboe flist_for_each(entry, &engine_list) { 7901743ee1718e7ec4b16ae3e53c8f64900c6052ccJens Axboe ops = flist_entry(entry, struct ioengine_ops, list); 80bc5b77a8c46aabea554c4a2c8cca37f27f97969aJens Axboe if (!strcmp(name, ops->name)) 815f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe return ops; 825f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe } 835f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe 845f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe return NULL; 855f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe} 865f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe 875f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboestatic struct ioengine_ops *dlopen_ioengine(struct thread_data *td, 885f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe const char *engine_lib) 895f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe{ 905f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe struct ioengine_ops *ops; 915f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe void *dlhandle; 925f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe 93ee56ad500f6692381e131cc37299d23fa910a24aJens Axboe dprint(FD_IO, "dload engine %s\n", engine_lib); 94ee56ad500f6692381e131cc37299d23fa910a24aJens Axboe 952866c82d598e30604d8a92723c664ee6ced90fb0Jens Axboe dlerror(); 962866c82d598e30604d8a92723c664ee6ced90fb0Jens Axboe dlhandle = dlopen(engine_lib, RTLD_LAZY); 97d4dbaaa821b9d3dd34ca002d1976d4f924a07a47Jens Axboe if (!dlhandle) { 98e1161c325f7866bae879e686d1c673ca32ab09aeJens Axboe td_vmsg(td, -1, dlerror(), "dlopen"); 99d4dbaaa821b9d3dd34ca002d1976d4f924a07a47Jens Axboe return NULL; 100d4dbaaa821b9d3dd34ca002d1976d4f924a07a47Jens Axboe } 1018756e4d421722eaeb089067aeaaf317d05d53a57Jens Axboe 102da51c0505c753f64ad5f65808377b8f67b445828Jens Axboe /* 103da51c0505c753f64ad5f65808377b8f67b445828Jens Axboe * Unlike the included modules, external engines should have a 104da51c0505c753f64ad5f65808377b8f67b445828Jens Axboe * non-static ioengine structure that we can reference. 105da51c0505c753f64ad5f65808377b8f67b445828Jens Axboe */ 1062866c82d598e30604d8a92723c664ee6ced90fb0Jens Axboe ops = dlsym(dlhandle, "ioengine"); 107d4dbaaa821b9d3dd34ca002d1976d4f924a07a47Jens Axboe if (!ops) { 108e1161c325f7866bae879e686d1c673ca32ab09aeJens Axboe td_vmsg(td, -1, dlerror(), "dlsym"); 109d4dbaaa821b9d3dd34ca002d1976d4f924a07a47Jens Axboe dlclose(dlhandle); 110d4dbaaa821b9d3dd34ca002d1976d4f924a07a47Jens Axboe return NULL; 111d4dbaaa821b9d3dd34ca002d1976d4f924a07a47Jens Axboe } 1128756e4d421722eaeb089067aeaaf317d05d53a57Jens Axboe 1135f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe ops->dlhandle = dlhandle; 1145f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe return ops; 1155f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe} 1165f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe 1175f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboestruct ioengine_ops *load_ioengine(struct thread_data *td, const char *name) 1185f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe{ 1195f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe struct ioengine_ops *ops, *ret; 1205f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe char engine[16]; 1215f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe 122ee56ad500f6692381e131cc37299d23fa910a24aJens Axboe dprint(FD_IO, "load ioengine %s\n", name); 123ee56ad500f6692381e131cc37299d23fa910a24aJens Axboe 1245f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe strncpy(engine, name, sizeof(engine) - 1); 1255f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe 1265f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe /* 1275f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe * linux libaio has alias names, so convert to what we want 1285f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe */ 1295f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe if (!strncmp(engine, "linuxaio", 8) || !strncmp(engine, "aio", 3)) 1305f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe strcpy(engine, "libaio"); 1315f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe 1325f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe ops = find_ioengine(engine); 1335f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe if (!ops) 1345f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe ops = dlopen_ioengine(td, name); 1355f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe 1365f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe if (!ops) { 1375f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe log_err("fio: engine %s not loadable\n", name); 138b902ceb53977a12062c615ab529ca0c3422e3cffJens Axboe return NULL; 139b902ceb53977a12062c615ab529ca0c3422e3cffJens Axboe } 140b902ceb53977a12062c615ab529ca0c3422e3cffJens Axboe 1418c16d840377c1e6fb79f479ee60590a2da5b52eeJens Axboe /* 1428c16d840377c1e6fb79f479ee60590a2da5b52eeJens Axboe * Check that the required methods are there. 1438c16d840377c1e6fb79f479ee60590a2da5b52eeJens Axboe */ 1445f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe if (check_engine_ops(ops)) 1458c16d840377c1e6fb79f479ee60590a2da5b52eeJens Axboe return NULL; 1468c16d840377c1e6fb79f479ee60590a2da5b52eeJens Axboe 14784585003d025a38b91749cb0d68f6b5653d1f1a3Jens Axboe ret = malloc(sizeof(*ret)); 14884585003d025a38b91749cb0d68f6b5653d1f1a3Jens Axboe memcpy(ret, ops, sizeof(*ret)); 14984585003d025a38b91749cb0d68f6b5653d1f1a3Jens Axboe ret->data = NULL; 15084585003d025a38b91749cb0d68f6b5653d1f1a3Jens Axboe 15184585003d025a38b91749cb0d68f6b5653d1f1a3Jens Axboe return ret; 1528756e4d421722eaeb089067aeaaf317d05d53a57Jens Axboe} 1538756e4d421722eaeb089067aeaaf317d05d53a57Jens Axboe 1542866c82d598e30604d8a92723c664ee6ced90fb0Jens Axboevoid close_ioengine(struct thread_data *td) 1558756e4d421722eaeb089067aeaaf317d05d53a57Jens Axboe{ 156ee56ad500f6692381e131cc37299d23fa910a24aJens Axboe dprint(FD_IO, "close ioengine %s\n", td->io_ops->name); 157ee56ad500f6692381e131cc37299d23fa910a24aJens Axboe 1582992b059b8f54ac91e723a8bde629b4d8fed513eJens Axboe if (td->io_ops->cleanup) { 1592866c82d598e30604d8a92723c664ee6ced90fb0Jens Axboe td->io_ops->cleanup(td); 1602992b059b8f54ac91e723a8bde629b4d8fed513eJens Axboe td->io_ops->data = NULL; 1612992b059b8f54ac91e723a8bde629b4d8fed513eJens Axboe } 162b990b5c06801d6d25e3fcc5415efbbe7bb23341eJens Axboe 1635f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe if (td->io_ops->dlhandle) 1645f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe dlclose(td->io_ops->dlhandle); 1655f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe 16684585003d025a38b91749cb0d68f6b5653d1f1a3Jens Axboe free(td->io_ops); 16784585003d025a38b91749cb0d68f6b5653d1f1a3Jens Axboe td->io_ops = NULL; 168b990b5c06801d6d25e3fcc5415efbbe7bb23341eJens Axboe} 16910ba535a5cbb95b5576e33a6f8af093a6ca3bfd7Jens Axboe 17010ba535a5cbb95b5576e33a6f8af093a6ca3bfd7Jens Axboeint td_io_prep(struct thread_data *td, struct io_u *io_u) 17110ba535a5cbb95b5576e33a6f8af093a6ca3bfd7Jens Axboe{ 172ee56ad500f6692381e131cc37299d23fa910a24aJens Axboe dprint_io_u(io_u, "prep"); 1737101d9c24abec4be58a086d85d6d92ec6e6492e9Jens Axboe fio_ro_check(td, io_u); 1747101d9c24abec4be58a086d85d6d92ec6e6492e9Jens Axboe 1754d4e80f2b4260f2c8b37a8612ce655502a799f7aJens Axboe lock_file(td, io_u->file, io_u->ddir); 176b2bd2bd96a09540b3add0ec74db2cdb1c145ca33Jens Axboe 1772ba1c290d09af6d630d84a58b97b8032f73bc2ceJens Axboe if (td->io_ops->prep) { 1782ba1c290d09af6d630d84a58b97b8032f73bc2ceJens Axboe int ret = td->io_ops->prep(td, io_u); 1792ba1c290d09af6d630d84a58b97b8032f73bc2ceJens Axboe 1802ba1c290d09af6d630d84a58b97b8032f73bc2ceJens Axboe dprint(FD_IO, "->prep(%p)=%d\n", io_u, ret); 181b2bd2bd96a09540b3add0ec74db2cdb1c145ca33Jens Axboe if (ret) 1824d4e80f2b4260f2c8b37a8612ce655502a799f7aJens Axboe unlock_file(td, io_u->file); 1832ba1c290d09af6d630d84a58b97b8032f73bc2ceJens Axboe return ret; 1842ba1c290d09af6d630d84a58b97b8032f73bc2ceJens Axboe } 18510ba535a5cbb95b5576e33a6f8af093a6ca3bfd7Jens Axboe 18610ba535a5cbb95b5576e33a6f8af093a6ca3bfd7Jens Axboe return 0; 18710ba535a5cbb95b5576e33a6f8af093a6ca3bfd7Jens Axboe} 18810ba535a5cbb95b5576e33a6f8af093a6ca3bfd7Jens Axboe 189e7d2e61694c62b90a2fb84c012b4edcc1973d72cJens Axboeint td_io_getevents(struct thread_data *td, unsigned int min, unsigned int max, 19010ba535a5cbb95b5576e33a6f8af093a6ca3bfd7Jens Axboe struct timespec *t) 19110ba535a5cbb95b5576e33a6f8af093a6ca3bfd7Jens Axboe{ 192ee56ad500f6692381e131cc37299d23fa910a24aJens Axboe int r = 0; 193face81b280ab94ba5d975739578779157c8b54ceJens Axboe 194ee56ad500f6692381e131cc37299d23fa910a24aJens Axboe if (min > 0 && td->io_ops->commit) { 195ee56ad500f6692381e131cc37299d23fa910a24aJens Axboe r = td->io_ops->commit(td); 196face81b280ab94ba5d975739578779157c8b54ceJens Axboe if (r < 0) 197ee56ad500f6692381e131cc37299d23fa910a24aJens Axboe goto out; 198face81b280ab94ba5d975739578779157c8b54ceJens Axboe } 1994950421a7e379ba0ca642390ae4ae7b68e92a42fJens Axboe if (max > td->cur_depth) 2004950421a7e379ba0ca642390ae4ae7b68e92a42fJens Axboe max = td->cur_depth; 2014950421a7e379ba0ca642390ae4ae7b68e92a42fJens Axboe if (min > max) 2024950421a7e379ba0ca642390ae4ae7b68e92a42fJens Axboe max = min; 20336167d82e5f49dee91c6d2cd426068edee90e36fJens Axboe 204ee56ad500f6692381e131cc37299d23fa910a24aJens Axboe r = 0; 2054950421a7e379ba0ca642390ae4ae7b68e92a42fJens Axboe if (max && td->io_ops->getevents) 206ee56ad500f6692381e131cc37299d23fa910a24aJens Axboe r = td->io_ops->getevents(td, min, max, t); 207ee56ad500f6692381e131cc37299d23fa910a24aJens Axboeout: 208838bc709279964bdcc64070d4eb2777a0f79bcbbJens Axboe if (r >= 0) 209838bc709279964bdcc64070d4eb2777a0f79bcbbJens Axboe io_u_mark_complete(td, r); 210ee56ad500f6692381e131cc37299d23fa910a24aJens Axboe dprint(FD_IO, "getevents: %d\n", r); 211ee56ad500f6692381e131cc37299d23fa910a24aJens Axboe return r; 21210ba535a5cbb95b5576e33a6f8af093a6ca3bfd7Jens Axboe} 21310ba535a5cbb95b5576e33a6f8af093a6ca3bfd7Jens Axboe 21410ba535a5cbb95b5576e33a6f8af093a6ca3bfd7Jens Axboeint td_io_queue(struct thread_data *td, struct io_u *io_u) 21510ba535a5cbb95b5576e33a6f8af093a6ca3bfd7Jens Axboe{ 2167e77dd026d85253936aef432ba8f3e89b96b805cJens Axboe int ret; 2177e77dd026d85253936aef432ba8f3e89b96b805cJens Axboe 218ee56ad500f6692381e131cc37299d23fa910a24aJens Axboe dprint_io_u(io_u, "queue"); 2197101d9c24abec4be58a086d85d6d92ec6e6492e9Jens Axboe fio_ro_check(td, io_u); 2207101d9c24abec4be58a086d85d6d92ec6e6492e9Jens Axboe 2210c6e75175bcaf8d05bfa88aa8caa584fbb848b74Jens Axboe assert((io_u->flags & IO_U_F_FLIGHT) == 0); 2220c6e75175bcaf8d05bfa88aa8caa584fbb848b74Jens Axboe io_u->flags |= IO_U_F_FLIGHT; 2230c6e75175bcaf8d05bfa88aa8caa584fbb848b74Jens Axboe 224d6aed795f2e3e403828abf60874dd2d6e8342a1bJens Axboe assert(fio_file_open(io_u->file)); 2253d7b485f9478ed5d291ec58a16a40781ae3ab4aeJens Axboe 226117868024939609aebd94fff5afacfd29b2f9a6fJens Axboe io_u->error = 0; 227117868024939609aebd94fff5afacfd29b2f9a6fJens Axboe io_u->resid = 0; 228117868024939609aebd94fff5afacfd29b2f9a6fJens Axboe 229433afcb4fe81e775c15af9d39a6f4db8a53d693aJens Axboe if (td->io_ops->flags & FIO_SYNCIO) { 23012d9d841526ad75a67bb43a90edeefd05f85f11eJens Axboe if (fio_fill_issue_time(td)) 2319520ebb9f4dd88d086e313ae97e37ebb6d4f240bJens Axboe fio_gettime(&io_u->issue_time, NULL); 232d0c153284c1e6505e711c71e6412e6fef02853b8Jens Axboe 233d0c153284c1e6505e711c71e6412e6fef02853b8Jens Axboe /* 234d0c153284c1e6505e711c71e6412e6fef02853b8Jens Axboe * only used for iolog 235d0c153284c1e6505e711c71e6412e6fef02853b8Jens Axboe */ 236d0c153284c1e6505e711c71e6412e6fef02853b8Jens Axboe if (td->o.read_iolog_file) 237d0c153284c1e6505e711c71e6412e6fef02853b8Jens Axboe memcpy(&td->last_issue, &io_u->issue_time, 2385ec10eaad3b09875b91e19a20bbdfa06f2117562Jens Axboe sizeof(struct timeval)); 239433afcb4fe81e775c15af9d39a6f4db8a53d693aJens Axboe } 240433afcb4fe81e775c15af9d39a6f4db8a53d693aJens Axboe 241755200a326a33e5e19b16dfd5e013dd98bcf1916Jens Axboe if (io_u->ddir != DDIR_SYNC) 242755200a326a33e5e19b16dfd5e013dd98bcf1916Jens Axboe td->io_issues[io_u->ddir]++; 243755200a326a33e5e19b16dfd5e013dd98bcf1916Jens Axboe 2447e77dd026d85253936aef432ba8f3e89b96b805cJens Axboe ret = td->io_ops->queue(td, io_u); 2455aeb77df5d75d1065b339c47afbd882a3c04702eJens Axboe 2464d4e80f2b4260f2c8b37a8612ce655502a799f7aJens Axboe unlock_file(td, io_u->file); 247b2bd2bd96a09540b3add0ec74db2cdb1c145ca33Jens Axboe 248838bc709279964bdcc64070d4eb2777a0f79bcbbJens Axboe if (!td->io_ops->commit) { 249838bc709279964bdcc64070d4eb2777a0f79bcbbJens Axboe io_u_mark_submit(td, 1); 250838bc709279964bdcc64070d4eb2777a0f79bcbbJens Axboe io_u_mark_complete(td, 1); 251838bc709279964bdcc64070d4eb2777a0f79bcbbJens Axboe } 252838bc709279964bdcc64070d4eb2777a0f79bcbbJens Axboe 253d8005759746a2cb5c8269201911b1997aa714e80Jens Axboe if (ret == FIO_Q_COMPLETED) { 254d8005759746a2cb5c8269201911b1997aa714e80Jens Axboe if (io_u->ddir != DDIR_SYNC) { 255d8005759746a2cb5c8269201911b1997aa714e80Jens Axboe io_u_mark_depth(td, 1); 256d8005759746a2cb5c8269201911b1997aa714e80Jens Axboe td->ts.total_io_u[io_u->ddir]++; 257d8005759746a2cb5c8269201911b1997aa714e80Jens Axboe } 258d8005759746a2cb5c8269201911b1997aa714e80Jens Axboe } else if (ret == FIO_Q_QUEUED) { 259eb7c8ae27bc301b77490b3586dd5ccab7c95880aJens Axboe int r; 260eb7c8ae27bc301b77490b3586dd5ccab7c95880aJens Axboe 261d8005759746a2cb5c8269201911b1997aa714e80Jens Axboe if (io_u->ddir != DDIR_SYNC) { 262d8005759746a2cb5c8269201911b1997aa714e80Jens Axboe td->io_u_queued++; 263d8005759746a2cb5c8269201911b1997aa714e80Jens Axboe td->ts.total_io_u[io_u->ddir]++; 264d8005759746a2cb5c8269201911b1997aa714e80Jens Axboe } 265d8005759746a2cb5c8269201911b1997aa714e80Jens Axboe 266d8005759746a2cb5c8269201911b1997aa714e80Jens Axboe if (td->io_u_queued >= td->o.iodepth_batch) { 267eb7c8ae27bc301b77490b3586dd5ccab7c95880aJens Axboe r = td_io_commit(td); 268eb7c8ae27bc301b77490b3586dd5ccab7c95880aJens Axboe if (r < 0) 269eb7c8ae27bc301b77490b3586dd5ccab7c95880aJens Axboe return r; 270eb7c8ae27bc301b77490b3586dd5ccab7c95880aJens Axboe } 271eb7c8ae27bc301b77490b3586dd5ccab7c95880aJens Axboe } 272cb5ab5121ac4fa62e0ca2612b359f19bfdd30f29Jens Axboe 273433afcb4fe81e775c15af9d39a6f4db8a53d693aJens Axboe if ((td->io_ops->flags & FIO_SYNCIO) == 0) { 27412d9d841526ad75a67bb43a90edeefd05f85f11eJens Axboe if (fio_fill_issue_time(td)) 2759520ebb9f4dd88d086e313ae97e37ebb6d4f240bJens Axboe fio_gettime(&io_u->issue_time, NULL); 276d0c153284c1e6505e711c71e6412e6fef02853b8Jens Axboe 277d0c153284c1e6505e711c71e6412e6fef02853b8Jens Axboe /* 278d0c153284c1e6505e711c71e6412e6fef02853b8Jens Axboe * only used for iolog 279d0c153284c1e6505e711c71e6412e6fef02853b8Jens Axboe */ 280d0c153284c1e6505e711c71e6412e6fef02853b8Jens Axboe if (td->o.read_iolog_file) 281d0c153284c1e6505e711c71e6412e6fef02853b8Jens Axboe memcpy(&td->last_issue, &io_u->issue_time, 282d0c153284c1e6505e711c71e6412e6fef02853b8Jens Axboe sizeof(struct timeval)); 283433afcb4fe81e775c15af9d39a6f4db8a53d693aJens Axboe } 284433afcb4fe81e775c15af9d39a6f4db8a53d693aJens Axboe 2857e77dd026d85253936aef432ba8f3e89b96b805cJens Axboe return ret; 28610ba535a5cbb95b5576e33a6f8af093a6ca3bfd7Jens Axboe} 2878c16d840377c1e6fb79f479ee60590a2da5b52eeJens Axboe 2888c16d840377c1e6fb79f479ee60590a2da5b52eeJens Axboeint td_io_init(struct thread_data *td) 2898c16d840377c1e6fb79f479ee60590a2da5b52eeJens Axboe{ 290eeb121607c2a7f36b0fac17649cb8081d6fd853bJens Axboe int ret = 0; 2918c16d840377c1e6fb79f479ee60590a2da5b52eeJens Axboe 292eeb121607c2a7f36b0fac17649cb8081d6fd853bJens Axboe if (td->io_ops->init) { 293eeb121607c2a7f36b0fac17649cb8081d6fd853bJens Axboe ret = td->io_ops->init(td); 2945ec10eaad3b09875b91e19a20bbdfa06f2117562Jens Axboe if (ret && td->o.iodepth > 1) { 2955ec10eaad3b09875b91e19a20bbdfa06f2117562Jens Axboe log_err("fio: io engine init failed. Perhaps try" 2965ec10eaad3b09875b91e19a20bbdfa06f2117562Jens Axboe " reducing io depth?\n"); 2975ec10eaad3b09875b91e19a20bbdfa06f2117562Jens Axboe } 298eeb121607c2a7f36b0fac17649cb8081d6fd853bJens Axboe } 299eeb121607c2a7f36b0fac17649cb8081d6fd853bJens Axboe 300eeb121607c2a7f36b0fac17649cb8081d6fd853bJens Axboe return ret; 3018c16d840377c1e6fb79f479ee60590a2da5b52eeJens Axboe} 302755200a326a33e5e19b16dfd5e013dd98bcf1916Jens Axboe 303755200a326a33e5e19b16dfd5e013dd98bcf1916Jens Axboeint td_io_commit(struct thread_data *td) 304755200a326a33e5e19b16dfd5e013dd98bcf1916Jens Axboe{ 305ee56ad500f6692381e131cc37299d23fa910a24aJens Axboe dprint(FD_IO, "calling ->commit(), depth %d\n", td->cur_depth); 306ee56ad500f6692381e131cc37299d23fa910a24aJens Axboe 307d8005759746a2cb5c8269201911b1997aa714e80Jens Axboe if (!td->cur_depth || !td->io_u_queued) 308e1161c325f7866bae879e686d1c673ca32ab09aeJens Axboe return 0; 309cb5ab5121ac4fa62e0ca2612b359f19bfdd30f29Jens Axboe 310d8005759746a2cb5c8269201911b1997aa714e80Jens Axboe io_u_mark_depth(td, td->io_u_queued); 311cb5ab5121ac4fa62e0ca2612b359f19bfdd30f29Jens Axboe td->io_u_queued = 0; 312d8005759746a2cb5c8269201911b1997aa714e80Jens Axboe 313755200a326a33e5e19b16dfd5e013dd98bcf1916Jens Axboe if (td->io_ops->commit) 314755200a326a33e5e19b16dfd5e013dd98bcf1916Jens Axboe return td->io_ops->commit(td); 315755200a326a33e5e19b16dfd5e013dd98bcf1916Jens Axboe 316755200a326a33e5e19b16dfd5e013dd98bcf1916Jens Axboe return 0; 317755200a326a33e5e19b16dfd5e013dd98bcf1916Jens Axboe} 318b5af82930ccfd7dda6a1b11794efb452eb76d8dcJens Axboe 319b5af82930ccfd7dda6a1b11794efb452eb76d8dcJens Axboeint td_io_open_file(struct thread_data *td, struct fio_file *f) 320b5af82930ccfd7dda6a1b11794efb452eb76d8dcJens Axboe{ 321413d669320995eaef092c58e67cdb7b500134551Jens Axboe if (td->io_ops->open_file(td, f)) { 322413d669320995eaef092c58e67cdb7b500134551Jens Axboe if (td->error == EINVAL && td->o.odirect) 323413d669320995eaef092c58e67cdb7b500134551Jens Axboe log_err("fio: destination does not support O_DIRECT\n"); 3245ec10eaad3b09875b91e19a20bbdfa06f2117562Jens Axboe if (td->error == EMFILE) { 3255ec10eaad3b09875b91e19a20bbdfa06f2117562Jens Axboe log_err("fio: try reducing/setting openfiles (failed" 3265ec10eaad3b09875b91e19a20bbdfa06f2117562Jens Axboe " at %u of %u)\n", td->nr_open_files, 3275ec10eaad3b09875b91e19a20bbdfa06f2117562Jens Axboe td->o.nr_files); 3285ec10eaad3b09875b91e19a20bbdfa06f2117562Jens Axboe } 329413d669320995eaef092c58e67cdb7b500134551Jens Axboe 330413d669320995eaef092c58e67cdb7b500134551Jens Axboe return 1; 331413d669320995eaef092c58e67cdb7b500134551Jens Axboe } 332413d669320995eaef092c58e67cdb7b500134551Jens Axboe 333d5707a3565e958af566247e2c0acf09e031d8921Jens Axboe fio_file_reset(f); 334d6aed795f2e3e403828abf60874dd2d6e8342a1bJens Axboe fio_file_set_open(f); 335d6aed795f2e3e403828abf60874dd2d6e8342a1bJens Axboe fio_file_clear_closing(f); 336c97bd0fa0f68d924f4e6f3c480f380c4ca20b872Jens Axboe disk_util_inc(f->du); 337d5707a3565e958af566247e2c0acf09e031d8921Jens Axboe 338d5707a3565e958af566247e2c0acf09e031d8921Jens Axboe td->nr_open_files++; 339d5707a3565e958af566247e2c0acf09e031d8921Jens Axboe get_file(f); 340d5707a3565e958af566247e2c0acf09e031d8921Jens Axboe 341661598287ecc3b8987f312cf8403936552ce686aJens Axboe if (f->filetype == FIO_TYPE_PIPE) { 342661598287ecc3b8987f312cf8403936552ce686aJens Axboe if (td_random(td)) { 343661598287ecc3b8987f312cf8403936552ce686aJens Axboe log_err("fio: can't seek on pipes (no random io)\n"); 344661598287ecc3b8987f312cf8403936552ce686aJens Axboe goto err; 345661598287ecc3b8987f312cf8403936552ce686aJens Axboe } 346661598287ecc3b8987f312cf8403936552ce686aJens Axboe } 347661598287ecc3b8987f312cf8403936552ce686aJens Axboe 348413d669320995eaef092c58e67cdb7b500134551Jens Axboe if (td->io_ops->flags & FIO_DISKLESSIO) 349413d669320995eaef092c58e67cdb7b500134551Jens Axboe goto done; 350413d669320995eaef092c58e67cdb7b500134551Jens Axboe 351413d669320995eaef092c58e67cdb7b500134551Jens Axboe if (td->o.invalidate_cache && file_invalidate_cache(td, f)) 352413d669320995eaef092c58e67cdb7b500134551Jens Axboe goto err; 353413d669320995eaef092c58e67cdb7b500134551Jens Axboe 354661598287ecc3b8987f312cf8403936552ce686aJens Axboe if (td->o.fadvise_hint && 355661598287ecc3b8987f312cf8403936552ce686aJens Axboe (f->filetype == FIO_TYPE_BD || f->filetype == FIO_TYPE_FILE)) { 356413d669320995eaef092c58e67cdb7b500134551Jens Axboe int flags; 357413d669320995eaef092c58e67cdb7b500134551Jens Axboe 358413d669320995eaef092c58e67cdb7b500134551Jens Axboe if (td_random(td)) 359413d669320995eaef092c58e67cdb7b500134551Jens Axboe flags = POSIX_FADV_RANDOM; 360413d669320995eaef092c58e67cdb7b500134551Jens Axboe else 361413d669320995eaef092c58e67cdb7b500134551Jens Axboe flags = POSIX_FADV_SEQUENTIAL; 362413d669320995eaef092c58e67cdb7b500134551Jens Axboe 363413d669320995eaef092c58e67cdb7b500134551Jens Axboe if (fadvise(f->fd, f->file_offset, f->io_size, flags) < 0) { 364413d669320995eaef092c58e67cdb7b500134551Jens Axboe td_verror(td, errno, "fadvise"); 365413d669320995eaef092c58e67cdb7b500134551Jens Axboe goto err; 366413d669320995eaef092c58e67cdb7b500134551Jens Axboe } 3677bb48f84ac78cac1f90e3e04d0220d90d6a64a6bJens Axboe } 368a978ba684deb758465a0ccb18a008797636e8054Jens Axboe 369413d669320995eaef092c58e67cdb7b500134551Jens Axboe if (f->file_map) 370de605666880852ba9d1a0469723126b09782c520Jens Axboe memset(f->file_map, 0, f->num_maps * sizeof(int)); 371a978ba684deb758465a0ccb18a008797636e8054Jens Axboe 372e116f2b90f110334e77741227ad4e4600302c718Jens Axboe#ifdef FIO_OS_DIRECTIO 373e116f2b90f110334e77741227ad4e4600302c718Jens Axboe /* 374e116f2b90f110334e77741227ad4e4600302c718Jens Axboe * Some OS's have a distinct call to mark the file non-buffered, 375e116f2b90f110334e77741227ad4e4600302c718Jens Axboe * instead of using O_DIRECT (Solaris) 376e116f2b90f110334e77741227ad4e4600302c718Jens Axboe */ 377e116f2b90f110334e77741227ad4e4600302c718Jens Axboe if (td->o.odirect) { 378e116f2b90f110334e77741227ad4e4600302c718Jens Axboe int ret = fio_set_odirect(f->fd); 379e116f2b90f110334e77741227ad4e4600302c718Jens Axboe 380e116f2b90f110334e77741227ad4e4600302c718Jens Axboe if (ret) { 381e116f2b90f110334e77741227ad4e4600302c718Jens Axboe td_verror(td, ret, "fio_set_odirect"); 382e116f2b90f110334e77741227ad4e4600302c718Jens Axboe goto err; 383e116f2b90f110334e77741227ad4e4600302c718Jens Axboe } 384e116f2b90f110334e77741227ad4e4600302c718Jens Axboe } 385e116f2b90f110334e77741227ad4e4600302c718Jens Axboe#endif 386e116f2b90f110334e77741227ad4e4600302c718Jens Axboe 387413d669320995eaef092c58e67cdb7b500134551Jens Axboedone: 388f29b25a370598d387e539c3dcae126274c6cbf4dJens Axboe log_file(td, f, FIO_LOG_OPEN_FILE); 389413d669320995eaef092c58e67cdb7b500134551Jens Axboe return 0; 390413d669320995eaef092c58e67cdb7b500134551Jens Axboeerr: 391c97bd0fa0f68d924f4e6f3c480f380c4ca20b872Jens Axboe disk_util_dec(f->du); 392b284075ab5414220496f396dff038003e57e3047Jens Axboe if (td->io_ops->close_file) 393b284075ab5414220496f396dff038003e57e3047Jens Axboe td->io_ops->close_file(td, f); 3947bb48f84ac78cac1f90e3e04d0220d90d6a64a6bJens Axboe return 1; 395b5af82930ccfd7dda6a1b11794efb452eb76d8dcJens Axboe} 396b5af82930ccfd7dda6a1b11794efb452eb76d8dcJens Axboe 3976977bcd0e4ee3faa7ffd8f208e4031bdf906ed88Jens Axboeint td_io_close_file(struct thread_data *td, struct fio_file *f) 398b5af82930ccfd7dda6a1b11794efb452eb76d8dcJens Axboe{ 399d6aed795f2e3e403828abf60874dd2d6e8342a1bJens Axboe if (!fio_file_closing(f)) 400f29b25a370598d387e539c3dcae126274c6cbf4dJens Axboe log_file(td, f, FIO_LOG_CLOSE_FILE); 401f29b25a370598d387e539c3dcae126274c6cbf4dJens Axboe 4020ad920e7f85db1fdc26649be6bc7e584e8c7fdc9Jens Axboe /* 4030ad920e7f85db1fdc26649be6bc7e584e8c7fdc9Jens Axboe * mark as closing, do real close when last io on it has completed 4040ad920e7f85db1fdc26649be6bc7e584e8c7fdc9Jens Axboe */ 405d6aed795f2e3e403828abf60874dd2d6e8342a1bJens Axboe fio_file_set_closing(f); 4060ad920e7f85db1fdc26649be6bc7e584e8c7fdc9Jens Axboe 407c97bd0fa0f68d924f4e6f3c480f380c4ca20b872Jens Axboe disk_util_dec(f->du); 4084d4e80f2b4260f2c8b37a8612ce655502a799f7aJens Axboe unlock_file_all(td, f); 40929c1349f1840c3f60434c9da602074bc8fde4afeJens Axboe 4106977bcd0e4ee3faa7ffd8f208e4031bdf906ed88Jens Axboe return put_file(td, f); 411b5af82930ccfd7dda6a1b11794efb452eb76d8dcJens Axboe} 412df9c26b10275a631e83e7cc92d5f7384998b2c49Jens Axboe 413df9c26b10275a631e83e7cc92d5f7384998b2c49Jens Axboeint td_io_get_file_size(struct thread_data *td, struct fio_file *f) 414df9c26b10275a631e83e7cc92d5f7384998b2c49Jens Axboe{ 415df9c26b10275a631e83e7cc92d5f7384998b2c49Jens Axboe if (!td->io_ops->get_file_size) 416df9c26b10275a631e83e7cc92d5f7384998b2c49Jens Axboe return 0; 417df9c26b10275a631e83e7cc92d5f7384998b2c49Jens Axboe 418df9c26b10275a631e83e7cc92d5f7384998b2c49Jens Axboe return td->io_ops->get_file_size(td, f); 419df9c26b10275a631e83e7cc92d5f7384998b2c49Jens Axboe} 420