Support vitastor_c_create_epoll() in fio driver
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parent
bac9e34836
commit
8bfea6e7de
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@ -32,6 +32,7 @@
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struct sec_data
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{
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vitastor_c *cli = NULL;
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bool epoll_based = false;
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void *watch = NULL;
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bool last_sync = false;
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/* The list of completed io_u structs. */
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@ -58,6 +59,7 @@ struct sec_options
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int rdma_port_num = 0;
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int rdma_gid_index = 0;
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int rdma_mtu = 0;
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int no_io_uring = 0;
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};
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static struct fio_option options[] = {
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@ -193,6 +195,16 @@ static struct fio_option options[] = {
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.category = FIO_OPT_C_ENGINE,
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.group = FIO_OPT_G_FILENAME,
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},
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{
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.name = "no_io_uring",
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.lname = "Disable io_uring",
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.type = FIO_OPT_BOOL,
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.off1 = offsetof(struct sec_options, no_io_uring),
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.help = "Use epoll and plain sendmsg/recvmsg instead of io_uring (slower)",
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.def = "0",
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.category = FIO_OPT_C_ENGINE,
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.group = FIO_OPT_G_FILENAME,
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},
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{
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.name = NULL,
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},
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@ -281,7 +293,17 @@ static int sec_setup(struct thread_data *td)
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opt_push(options, "log_level", std::to_string(o->cluster_log).c_str());
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// allow writeback caching if -direct is not set
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opt_push(options, "client_writeback_allowed", td->o.odirect ? "0" : "1");
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bsd->cli = vitastor_c_create_uring_json((const char**)options.data(), options.size());
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bsd->cli = o->no_io_uring ? NULL : vitastor_c_create_uring_json((const char**)options.data(), options.size());
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bsd->epoll_based = false;
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if (!bsd->cli)
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{
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if (o->no_io_uring)
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fprintf(stderr, "vitastor: io_uring disabled - I/O will be slower\n");
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else
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fprintf(stderr, "vitastor: failed to create io_uring: %s - I/O will be slower\n", strerror(errno));
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bsd->cli = vitastor_c_create_epoll_json((const char**)options.data(), options.size());
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bsd->epoll_based = true;
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}
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for (auto opt: options)
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free(opt);
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options.clear();
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@ -289,12 +311,24 @@ static int sec_setup(struct thread_data *td)
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{
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bsd->watch = NULL;
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vitastor_c_watch_inode(bsd->cli, o->image, watch_callback, bsd);
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while (true)
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if (!bsd->epoll_based)
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{
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vitastor_c_uring_handle_events(bsd->cli);
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if (bsd->watch)
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break;
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vitastor_c_uring_wait_events(bsd->cli);
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while (true)
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{
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vitastor_c_uring_handle_events(bsd->cli);
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if (bsd->watch)
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break;
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vitastor_c_uring_wait_events(bsd->cli);
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}
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}
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else
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{
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while (true)
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{
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if (bsd->watch)
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break;
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vitastor_c_epoll_handle_events(bsd->cli, 1000);
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}
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}
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td->files[0]->real_file_size = vitastor_c_inode_get_size(bsd->watch);
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if (!vitastor_c_inode_get_num(bsd->watch) ||
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@ -437,12 +471,24 @@ static enum fio_q_status sec_queue(struct thread_data *td, struct io_u *io)
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static int sec_getevents(struct thread_data *td, unsigned int min, unsigned int max, const struct timespec *t)
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{
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sec_data *bsd = (sec_data*)td->io_ops_data;
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while (true)
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if (!bsd->epoll_based)
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{
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vitastor_c_uring_handle_events(bsd->cli);
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if (bsd->completed.size() >= min)
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break;
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vitastor_c_uring_wait_events(bsd->cli);
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while (true)
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{
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vitastor_c_uring_handle_events(bsd->cli);
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if (bsd->completed.size() >= min)
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break;
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vitastor_c_uring_wait_events(bsd->cli);
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}
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}
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else
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{
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while (true)
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{
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if (bsd->completed.size() >= min)
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break;
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vitastor_c_epoll_handle_events(bsd->cli, 1000);
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}
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}
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return bsd->completed.size();
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}
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