#include <unistd.h>
#include <string.h>
#include <dlfcn.h>
+#include <fcntl.h>
#include <assert.h>
#include "fio.h"
* Unlike the included modules, external engines should have a
* non-static ioengine structure that we can reference.
*/
- ops = dlsym(dlhandle, "ioengine");
+ ops = dlsym(dlhandle, engine_lib);
+ if (!ops)
+ ops = dlsym(dlhandle, "ioengine");
if (!ops) {
td_vmsg(td, -1, dlerror(), "dlsym");
dlclose(dlhandle);
return ret;
}
-void close_ioengine(struct thread_data *td)
+/*
+ * For cleaning up an ioengine which never made it to init().
+ */
+void free_ioengine(struct thread_data *td)
{
- dprint(FD_IO, "close ioengine %s\n", td->io_ops->name);
+ dprint(FD_IO, "free ioengine %s\n", td->io_ops->name);
- if (td->io_ops->cleanup) {
- td->io_ops->cleanup(td);
- td->io_ops->data = NULL;
+ if (td->eo && td->io_ops->options) {
+ options_free(td->io_ops->options, td->eo);
+ free(td->eo);
+ td->eo = NULL;
}
if (td->io_ops->dlhandle)
td->io_ops = NULL;
}
+void close_ioengine(struct thread_data *td)
+{
+ dprint(FD_IO, "close ioengine %s\n", td->io_ops->name);
+
+ if (td->io_ops->cleanup) {
+ td->io_ops->cleanup(td);
+ td->io_ops->data = NULL;
+ }
+
+ free_ioengine(td);
+}
+
int td_io_prep(struct thread_data *td, struct io_u *io_u)
{
dprint_io_u(io_u, "prep");
{
int r = 0;
+ /*
+ * For ioengine=rdma one side operation RDMA_WRITE or RDMA_READ,
+ * server side gets a message from the client
+ * side that the task is finished, and
+ * td->done is set to 1 after td_io_commit(). In this case,
+ * there is no need to reap complete event in server side.
+ */
+ if (td->done)
+ return 0;
+
if (min > 0 && td->io_ops->commit) {
r = td->io_ops->commit(td);
if (r < 0)
if (max && td->io_ops->getevents)
r = td->io_ops->getevents(td, min, max, t);
out:
- if (r >= 0)
+ if (r >= 0) {
+ /*
+ * Reflect that our submitted requests were retrieved with
+ * whatever OS async calls are in the underlying engine.
+ */
+ td->io_u_in_flight -= r;
io_u_mark_complete(td, r);
- else
+ } else
td_verror(td, r, "get_events");
dprint(FD_IO, "getevents: %d\n", r);
assert(fio_file_open(io_u->file));
+ /*
+ * If using a write iolog, store this entry.
+ */
+ log_io_u(td, io_u);
+
io_u->error = 0;
io_u->resid = 0;
sizeof(struct timeval));
}
- if (ddir_rw(io_u->ddir))
- td->io_issues[io_u->ddir]++;
+ if (ddir_rw(acct_ddir(io_u)))
+ td->io_issues[acct_ddir(io_u)]++;
ret = td->io_ops->queue(td, io_u);
*/
if (io_u->error == EINVAL && td->io_issues[io_u->ddir & 1] == 1 &&
td->o.odirect) {
+
log_info("fio: first direct IO errored. File system may not "
"support direct IO, or iomem_align= is bad.\n");
}
- if (!td->io_ops->commit) {
+ if (!td->io_ops->commit || ddir_trim(io_u->ddir)) {
io_u_mark_submit(td, 1);
io_u_mark_complete(td, 1);
}
if (ddir_rw(io_u->ddir)) {
io_u_mark_depth(td, 1);
td->ts.total_io_u[io_u->ddir]++;
- } else if (io_u->ddir == DDIR_TRIM)
- td->ts.total_io_u[2]++;
+ }
} else if (ret == FIO_Q_QUEUED) {
int r;
log_err("fio: io engine init failed. Perhaps try"
" reducing io depth?\n");
}
+ if (!td->error)
+ td->error = ret;
}
return ret;
if (!td->cur_depth || !td->io_u_queued)
return 0;
- io_u_mark_depth(td, td->io_u_queued);
- td->io_u_queued = 0;
+ io_u_mark_depth(td, td->io_u_queued);
if (td->io_ops->commit) {
ret = td->io_ops->commit(td);
if (ret)
td_verror(td, -ret, "io commit");
}
+
+ /*
+ * Reflect that events were submitted as async IO requests.
+ */
+ td->io_u_in_flight += td->io_u_queued;
+ td->io_u_queued = 0;
return 0;
}
return 1;
}
- fio_file_reset(f);
+ fio_file_reset(td, f);
fio_file_set_open(f);
fio_file_clear_closing(f);
disk_util_inc(f->du);
else
flags = POSIX_FADV_SEQUENTIAL;
- if (fadvise(f->fd, f->file_offset, f->io_size, flags) < 0) {
+ if (posix_fadvise(f->fd, f->file_offset, f->io_size, flags) < 0) {
td_verror(td, errno, "fadvise");
goto err;
}
fio_file_set_closing(f);
disk_util_dec(f->du);
- unlock_file_all(td, f);
+
+ if (td->o.file_lock_mode != FILE_LOCK_NONE)
+ unlock_file_all(td, f);
return put_file(td, f);
}
if (io_u->ddir == DDIR_SYNC) {
ret = fsync(io_u->file->fd);
} else if (io_u->ddir == DDIR_DATASYNC) {
-#ifdef FIO_HAVE_FDATASYNC
+#ifdef CONFIG_FDATASYNC
ret = fdatasync(io_u->file->fd);
#else
ret = io_u->xfer_buflen;
return 0;
#endif
}
+
+int fio_show_ioengine_help(const char *engine)
+{
+ struct flist_head *entry;
+ struct thread_data td;
+ char *sep;
+ int ret = 1;
+
+ if (!engine || !*engine) {
+ log_info("Available IO engines:\n");
+ flist_for_each(entry, &engine_list) {
+ td.io_ops = flist_entry(entry, struct ioengine_ops,
+ list);
+ log_info("\t%s\n", td.io_ops->name);
+ }
+ return 0;
+ }
+ sep = strchr(engine, ',');
+ if (sep) {
+ *sep = 0;
+ sep++;
+ }
+
+ memset(&td, 0, sizeof(td));
+
+ td.io_ops = load_ioengine(&td, engine);
+ if (!td.io_ops) {
+ log_info("IO engine %s not found\n", engine);
+ return 1;
+ }
+
+ if (td.io_ops->options)
+ ret = show_cmd_help(td.io_ops->options, sep);
+ else
+ log_info("IO engine %s has no options\n", td.io_ops->name);
+
+ free_ioengine(&td);
+
+ return ret;
+}
projects / fio.git / blobdiff