#include <unistd.h>
#include <string.h>
#include <dlfcn.h>
+#include <fcntl.h>
#include <assert.h>
#include "fio.h"
+#include "diskutil.h"
static FLIST_HEAD(engine_list);
* 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
+ td_verror(td, r, "get_events");
+
dprint(FD_IO, "getevents: %d\n", r);
return r;
}
assert((io_u->flags & IO_U_F_FLIGHT) == 0);
io_u->flags |= IO_U_F_FLIGHT;
- assert(io_u->file->flags & FIO_FILE_OPEN);
+ 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 (io_u->ddir != DDIR_SYNC)
- 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);
unlock_file(td, io_u->file);
- if (!td->io_ops->commit) {
+ /*
+ * Add warning for O_DIRECT so that users have an easier time
+ * spotting potentially bad alignment. If this triggers for the first
+ * IO, then it's likely an alignment problem or because the host fs
+ * does not support O_DIRECT
+ */
+ 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 || ddir_trim(io_u->ddir)) {
io_u_mark_submit(td, 1);
io_u_mark_complete(td, 1);
}
if (ret == FIO_Q_COMPLETED) {
- if (io_u->ddir != DDIR_SYNC) {
+ if (ddir_rw(io_u->ddir)) {
io_u_mark_depth(td, 1);
td->ts.total_io_u[io_u->ddir]++;
}
} else if (ret == FIO_Q_QUEUED) {
int r;
- if (io_u->ddir != DDIR_SYNC) {
+ if (ddir_rw(io_u->ddir)) {
td->io_u_queued++;
td->ts.total_io_u[io_u->ddir]++;
}
log_err("fio: io engine init failed. Perhaps try"
" reducing io depth?\n");
}
+ if (!td->error)
+ td->error = ret;
}
return ret;
int td_io_commit(struct thread_data *td)
{
+ int ret;
+
dprint(FD_IO, "calling ->commit(), depth %d\n", td->cur_depth);
if (!td->cur_depth || !td->io_u_queued)
return 0;
io_u_mark_depth(td, td->io_u_queued);
- td->io_u_queued = 0;
- if (td->io_ops->commit)
- return td->io_ops->commit(td);
+ 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;
}
int td_io_open_file(struct thread_data *td, struct fio_file *f)
{
+ assert(!fio_file_open(f));
+ assert(f->fd == -1);
+
if (td->io_ops->open_file(td, f)) {
if (td->error == EINVAL && td->o.odirect)
log_err("fio: destination does not support O_DIRECT\n");
td->o.nr_files);
}
+ assert(f->fd == -1);
+ assert(!fio_file_open(f));
return 1;
}
- fio_file_reset(f);
- f->flags |= FIO_FILE_OPEN;
- f->flags &= ~FIO_FILE_CLOSING;
+ fio_file_reset(td, f);
+ fio_file_set_open(f);
+ fio_file_clear_closing(f);
+ disk_util_inc(f->du);
td->nr_open_files++;
get_file(f);
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;
}
}
- if (f->file_map)
- memset(f->file_map, 0, f->num_maps * sizeof(int));
-
#ifdef FIO_OS_DIRECTIO
/*
* Some OS's have a distinct call to mark the file non-buffered,
if (ret) {
td_verror(td, ret, "fio_set_odirect");
+ log_err("fio: the file system does not seem to support direct IO\n");
goto err;
}
}
log_file(td, f, FIO_LOG_OPEN_FILE);
return 0;
err:
+ disk_util_dec(f->du);
if (td->io_ops->close_file)
td->io_ops->close_file(td, f);
return 1;
int td_io_close_file(struct thread_data *td, struct fio_file *f)
{
- if (!(f->flags & FIO_FILE_CLOSING))
+ if (!fio_file_closing(f))
log_file(td, f, FIO_LOG_CLOSE_FILE);
/*
* mark as closing, do real close when last io on it has completed
*/
- f->flags |= FIO_FILE_CLOSING;
+ 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);
}
return td->io_ops->get_file_size(td, f);
}
+
+static int do_sync_file_range(struct thread_data *td, struct fio_file *f)
+{
+ off64_t offset, nbytes;
+
+ offset = f->first_write;
+ nbytes = f->last_write - f->first_write;
+
+ if (!nbytes)
+ return 0;
+
+ return sync_file_range(f->fd, offset, nbytes, td->o.sync_file_range);
+}
+
+int do_io_u_sync(struct thread_data *td, struct io_u *io_u)
+{
+ int ret;
+
+ if (io_u->ddir == DDIR_SYNC) {
+ ret = fsync(io_u->file->fd);
+ } else if (io_u->ddir == DDIR_DATASYNC) {
+#ifdef CONFIG_FDATASYNC
+ ret = fdatasync(io_u->file->fd);
+#else
+ ret = io_u->xfer_buflen;
+ io_u->error = EINVAL;
+#endif
+ } else if (io_u->ddir == DDIR_SYNC_FILE_RANGE)
+ ret = do_sync_file_range(td, io_u->file);
+ else {
+ ret = io_u->xfer_buflen;
+ io_u->error = EINVAL;
+ }
+
+ if (ret < 0)
+ io_u->error = errno;
+
+ return ret;
+}
+
+int do_io_u_trim(struct thread_data *td, struct io_u *io_u)
+{
+#ifndef FIO_HAVE_TRIM
+ io_u->error = EINVAL;
+ return 0;
+#else
+ struct fio_file *f = io_u->file;
+ int ret;
+
+ ret = os_trim(f->fd, io_u->offset, io_u->xfer_buflen);
+ if (!ret)
+ return io_u->xfer_buflen;
+
+ io_u->error = ret;
+ 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