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);
int td_io_prep(struct thread_data *td, struct io_u *io_u)
{
- if (td->io_ops->prep)
- return td->io_ops->prep(td, io_u);
+ dprint_io_u(io_u, "prep");
+ fio_ro_check(td, io_u);
+
+ if (td->io_ops->prep) {
+ int ret = td->io_ops->prep(td, io_u);
+
+ dprint(FD_IO, "->prep(%p)=%d\n", io_u, ret);
+ return ret;
+ }
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 (io_u->ddir != DDIR_SYNC)
td->io_issues[io_u->ddir]++;
- io_u_mark_depth(td, io_u);
-
ret = td->io_ops->queue(td, io_u);
+ if (ret != FIO_Q_BUSY)
+ io_u_mark_depth(td, io_u);
+
if (ret == FIO_Q_QUEUED) {
int r;
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 dpeth?\n");
+ 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;