#include <assert.h>
#include "fio.h"
-#include "os.h"
static LIST_HEAD(engine_list);
void unregister_ioengine(struct ioengine_ops *ops)
{
+ dprint(FD_IO, "ioengine %s unregistered\n", ops->name);
list_del(&ops->list);
INIT_LIST_HEAD(&ops->list);
}
void register_ioengine(struct ioengine_ops *ops)
{
+ dprint(FD_IO, "ioengine %s registered\n", ops->name);
INIT_LIST_HEAD(&ops->list);
list_add_tail(&ops->list, &engine_list);
}
struct ioengine_ops *ops;
void *dlhandle;
+ dprint(FD_IO, "dload engine %s\n", engine_lib);
+
dlerror();
dlhandle = dlopen(engine_lib, RTLD_LAZY);
if (!dlhandle) {
struct ioengine_ops *ops, *ret;
char engine[16];
+ dprint(FD_IO, "load ioengine %s\n", name);
+
strncpy(engine, name, sizeof(engine) - 1);
/*
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 = NULL;
}
+static void dprint_io_u(struct io_u *io_u, const char *p)
+{
+ struct fio_file *f = io_u->file;
+
+ dprint(FD_IO, "%s: off=%llu/len=%lu/ddir=%d", p, io_u->offset,
+ io_u->buflen, io_u->ddir);
+ if (f)
+ dprint(FD_IO, "/%s", f->file_name);
+ dprint(FD_IO, "\n");
+}
+
int td_io_prep(struct thread_data *td, struct io_u *io_u)
{
+ dprint_io_u(io_u, "prep");
+ fio_ro_check(td, io_u);
+
if (td->io_ops->prep)
return td->io_ops->prep(td, io_u);
return 0;
}
-int td_io_getevents(struct thread_data *td, int min, int max,
+int td_io_getevents(struct thread_data *td, unsigned int min, unsigned int max,
struct timespec *t)
{
- if (min > 0 && td->io_ops->commit) {
- int r = td->io_ops->commit(td);
+ int r = 0;
+ if (min > 0 && td->io_ops->commit) {
+ r = td->io_ops->commit(td);
if (r < 0)
- return r;
+ goto out;
}
- if (td->io_ops->getevents)
- return td->io_ops->getevents(td, min, max, t);
- return 0;
+ r = 0;
+ if (td->io_ops->getevents)
+ r = td->io_ops->getevents(td, min, max, t);
+out:
+ dprint(FD_IO, "getevents: %d\n", r);
+ return r;
}
int td_io_queue(struct thread_data *td, struct io_u *io_u)
{
int ret;
+ dprint_io_u(io_u, "queue");
+ fio_ro_check(td, io_u);
+
assert((io_u->flags & IO_U_F_FLIGHT) == 0);
io_u->flags |= IO_U_F_FLIGHT;
if (td->io_ops->flags & FIO_SYNCIO) {
fio_gettime(&io_u->issue_time, NULL);
+ memcpy(&td->last_issue, &io_u->issue_time, sizeof(struct timeval));
/*
* for a sync engine, set the timeout upfront
ret = td->io_ops->queue(td, io_u);
- if (ret == FIO_Q_QUEUED || ret == FIO_Q_COMPLETED)
- get_file(io_u->file);
-
if (ret == FIO_Q_QUEUED) {
int r;
if ((td->io_ops->flags & FIO_SYNCIO) == 0) {
fio_gettime(&io_u->issue_time, NULL);
+ memcpy(&td->last_issue, &io_u->issue_time, sizeof(struct timeval));
/*
* async engine, set the timeout here
int td_io_init(struct thread_data *td)
{
- if (td->io_ops->init)
- return td->io_ops->init(td);
+ int ret = 0;
- return 0;
+ if (td->io_ops->init) {
+ ret = td->io_ops->init(td);
+ if (ret && td->o.iodepth > 1)
+ log_err("fio: io engine init failed. Perhaps try reducing io depth?\n");
+ }
+
+ return ret;
}
int td_io_commit(struct thread_data *td)
{
+ dprint(FD_IO, "calling ->commit(), depth %d\n", td->cur_depth);
+
if (!td->cur_depth)
return 0;
int td_io_open_file(struct thread_data *td, struct fio_file *f)
{
- if (td->io_ops->open_file(td, f))
+ 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");
+ if (td->error == EMFILE)
+ log_err("fio: try reducing/setting openfiles (failed at %u of %u)\n", td->nr_open_files, td->o.nr_files);
+
return 1;
+ }
+
+ if (f->filetype == FIO_TYPE_PIPE) {
+ if (td_random(td)) {
+ log_err("fio: can't seek on pipes (no random io)\n");
+ goto err;
+ }
+ }
f->last_free_lookup = 0;
f->last_completed_pos = 0;
- f->last_pos = 0;
+ f->last_pos = f->file_offset;
f->flags |= FIO_FILE_OPEN;
f->flags &= ~FIO_FILE_CLOSING;
+ if (td->io_ops->flags & FIO_DISKLESSIO)
+ goto done;
+
+ if (td->o.invalidate_cache && file_invalidate_cache(td, f))
+ goto err;
+
+ if (td->o.fadvise_hint &&
+ (f->filetype == FIO_TYPE_BD || f->filetype == FIO_TYPE_FILE)) {
+
+ int flags;
+
+ if (td_random(td))
+ flags = POSIX_FADV_RANDOM;
+ else
+ flags = POSIX_FADV_SEQUENTIAL;
+
+ if (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(long));
+done:
+ log_file(td, f, FIO_LOG_OPEN_FILE);
td->nr_open_files++;
get_file(f);
return 0;
+err:
+ if (td->io_ops->close_file)
+ td->io_ops->close_file(td, f);
+ return 1;
}
void td_io_close_file(struct thread_data *td, struct fio_file *f)
{
+ if (!(f->flags & FIO_FILE_CLOSING))
+ log_file(td, f, FIO_LOG_CLOSE_FILE);
+
/*
* mark as closing, do real close when last io on it has completed
*/
put_file(td, f);
}
-
projects / fio.git / blobdiff