#include "fio.h"
#include "os.h"
+/*
+ * Change this define to play with the timeout handling
+ */
+#undef FIO_USE_TIMEOUT
+
struct io_completion_data {
int nr; /* input */
- endio_handler *handler; /* input */
int error; /* output */
unsigned long bytes_done[2]; /* output */
/*
* Mark a given offset as used in the map.
*/
-static void mark_random_map(struct thread_data *td, struct fio_file *f,
- struct io_u *io_u)
+static void mark_random_map(struct thread_data *td, struct io_u *io_u)
{
- unsigned int min_bs = td->rw_min_bs;
+ unsigned int min_bs = td->o.rw_min_bs;
+ struct fio_file *f = io_u->file;
unsigned long long block;
unsigned int blocks;
unsigned int nr_blocks;
i = f->last_free_lookup;
*b = (i * BLOCKS_PER_MAP);
- while ((*b) * td->rw_min_bs < f->real_file_size) {
+ while ((*b) * td->o.rw_min_bs < f->real_file_size) {
if (f->file_map[i] != -1UL) {
*b += ffz(f->file_map[i]);
f->last_free_lookup = i;
* until we find a free one. For sequential io, just return the end of
* the last io issued.
*/
-static int get_next_offset(struct thread_data *td, struct fio_file *f,
- struct io_u *io_u)
+static int get_next_offset(struct thread_data *td, struct io_u *io_u)
{
+ struct fio_file *f = io_u->file;
const int ddir = io_u->ddir;
unsigned long long b, rb;
long r;
- if (!td->sequential) {
- unsigned long long max_blocks = f->file_size / td->min_bs[ddir];
+ if (td_random(td)) {
+ unsigned long long max_blocks = f->file_size / td->o.min_bs[ddir];
int loops = 5;
do {
r = os_random_long(&td->random_state);
- b = ((max_blocks - 1) * r / (unsigned long long) (RAND_MAX+1.0));
- if (td->norandommap)
+ if (!max_blocks)
+ b = 0;
+ else
+ b = ((max_blocks - 1) * r / (unsigned long long) (RAND_MAX+1.0));
+ if (td->o.norandommap)
break;
- rb = b + (f->file_offset / td->min_bs[ddir]);
+ rb = b + (f->file_offset / td->o.min_bs[ddir]);
loops--;
} while (!random_map_free(td, f, rb) && loops);
if (!loops && get_next_free_block(td, f, &b))
return 1;
} else
- b = f->last_pos / td->min_bs[ddir];
+ b = f->last_pos / td->o.min_bs[ddir];
- io_u->offset = (b * td->min_bs[ddir]) + f->file_offset;
+ io_u->offset = (b * td->o.min_bs[ddir]) + f->file_offset;
if (io_u->offset >= f->real_file_size)
return 1;
return 0;
}
-static unsigned int get_next_buflen(struct thread_data *td, struct fio_file *f,
- struct io_u *io_u)
+static unsigned int get_next_buflen(struct thread_data *td, struct io_u *io_u)
{
+ struct fio_file *f = io_u->file;
const int ddir = io_u->ddir;
unsigned int buflen;
long r;
- if (td->min_bs[ddir] == td->max_bs[ddir])
- buflen = td->min_bs[ddir];
+ if (td->o.min_bs[ddir] == td->o.max_bs[ddir])
+ buflen = td->o.min_bs[ddir];
else {
r = os_random_long(&td->bsrange_state);
- buflen = (unsigned int) (1 + (double) (td->max_bs[ddir] - 1) * r / (RAND_MAX + 1.0));
- if (!td->bs_unaligned)
- buflen = (buflen + td->min_bs[ddir] - 1) & ~(td->min_bs[ddir] - 1);
+ buflen = (unsigned int) (1 + (double) (td->o.max_bs[ddir] - 1) * r / (RAND_MAX + 1.0));
+ if (!td->o.bs_unaligned)
+ buflen = (buflen + td->o.min_bs[ddir] - 1) & ~(td->o.min_bs[ddir] - 1);
}
while (buflen + io_u->offset > f->real_file_size) {
- if (buflen == td->min_bs[ddir])
+ if (buflen == td->o.min_bs[ddir]) {
+ if (!td->o.odirect) {
+ assert(io_u->offset <= f->real_file_size);
+ buflen = f->real_file_size - io_u->offset;
+ return buflen;
+ }
return 0;
+ }
- buflen = td->min_bs[ddir];
+ buflen = td->o.min_bs[ddir];
}
return buflen;
/*
* Check if it's time to seed a new data direction.
*/
- if (elapsed >= td->rwmixcycle) {
+ if (elapsed >= td->o.rwmixcycle) {
unsigned int v;
long r;
r = os_random_long(&td->rwmix_state);
v = 1 + (int) (100.0 * (r / (RAND_MAX + 1.0)));
- if (v < td->rwmixread)
+ if (v < td->o.rwmixread)
td->rwmix_ddir = DDIR_READ;
else
td->rwmix_ddir = DDIR_WRITE;
{
struct io_u *__io_u = *io_u;
+ __io_u->flags |= IO_U_F_FREE;
+ __io_u->flags &= ~IO_U_F_FLIGHT;
+
list_del(&__io_u->list);
list_add_tail(&__io_u->list, &td->io_u_requeues);
td->cur_depth--;
*io_u = NULL;
}
-static int fill_io_u(struct thread_data *td, struct fio_file *f,
- struct io_u *io_u)
+static int fill_io_u(struct thread_data *td, struct io_u *io_u)
{
/*
* If using an iolog, grab next piece if any available.
*/
- if (td->read_iolog)
+ if (td->o.read_iolog)
return read_iolog_get(td, io_u);
/*
* see if it's time to sync
*/
- if (td->fsync_blocks && !(td->io_issues[DDIR_WRITE] % td->fsync_blocks)
- && td->io_issues[DDIR_WRITE] && should_fsync(td)) {
+ if (td->o.fsync_blocks &&
+ !(td->io_issues[DDIR_WRITE] % td->o.fsync_blocks) &&
+ td->io_issues[DDIR_WRITE] && should_fsync(td)) {
io_u->ddir = DDIR_SYNC;
- io_u->file = f;
return 0;
}
* No log, let the seq/rand engine retrieve the next buflen and
* position.
*/
- if (get_next_offset(td, f, io_u))
+ if (get_next_offset(td, io_u))
return 1;
- io_u->buflen = get_next_buflen(td, f, io_u);
+ io_u->buflen = get_next_buflen(td, io_u);
if (!io_u->buflen)
return 1;
/*
* mark entry before potentially trimming io_u
*/
- if (!td->read_iolog && !td->sequential && !td->norandommap)
- mark_random_map(td, f, io_u);
+ if (!td->o.read_iolog && td_random(td) && !td->o.norandommap)
+ mark_random_map(td, io_u);
/*
* If using a write iolog, store this entry.
*/
- if (td->write_iolog_file)
+ if (td->o.write_iolog_file)
write_iolog_put(td, io_u);
- io_u->file = f;
return 0;
}
-static void io_u_mark_depth(struct thread_data *td)
+void io_u_mark_depth(struct thread_data *td, struct io_u *io_u)
{
int index = 0;
+ if (io_u->ddir == DDIR_SYNC)
+ return;
+
switch (td->cur_depth) {
default:
index++;
break;
}
- td->io_u_map[index]++;
- td->total_io_u++;
+ td->ts.io_u_map[index]++;
+ td->ts.total_io_u[io_u->ddir]++;
}
static void io_u_mark_latency(struct thread_data *td, unsigned long msec)
break;
}
- td->io_u_lat[index]++;
+ td->ts.io_u_lat[index]++;
}
-static struct fio_file *get_next_file(struct thread_data *td)
+/*
+ * Get next file to service by choosing one at random
+ */
+static struct fio_file *get_next_file_rand(struct thread_data *td, int goodf,
+ int badf)
+{
+ struct fio_file *f;
+ int fno;
+
+ do {
+ long r = os_random_long(&td->next_file_state);
+
+ fno = (unsigned int) ((double) td->o.nr_files * (r / (RAND_MAX + 1.0)));
+ f = &td->files[fno];
+
+ if ((!goodf || (f->flags & goodf)) && !(f->flags & badf))
+ return f;
+ } while (1);
+}
+
+/*
+ * Get next file to service by doing round robin between all available ones
+ */
+static struct fio_file *get_next_file_rr(struct thread_data *td, int goodf,
+ int badf)
{
unsigned int old_next_file = td->next_file;
struct fio_file *f;
f = &td->files[td->next_file];
td->next_file++;
- if (td->next_file >= td->nr_files)
+ if (td->next_file >= td->o.nr_files)
td->next_file = 0;
- if (f->fd != -1)
+ if ((!goodf || (f->flags & goodf)) && !(f->flags & badf))
break;
f = NULL;
return f;
}
+static struct fio_file *get_next_file(struct thread_data *td)
+{
+ struct fio_file *f;
+
+ assert(td->o.nr_files <= td->files_index);
+
+ if (!td->nr_open_files)
+ return NULL;
+
+ f = td->file_service_file;
+ if (f && (f->flags & FIO_FILE_OPEN) && td->file_service_left--)
+ return f;
+
+ if (td->o.file_service_type == FIO_FSERVICE_RR)
+ f = get_next_file_rr(td, FIO_FILE_OPEN, FIO_FILE_CLOSING);
+ else
+ f = get_next_file_rand(td, FIO_FILE_OPEN, FIO_FILE_CLOSING);
+
+ td->file_service_file = f;
+ td->file_service_left = td->file_service_nr - 1;
+ return f;
+}
+
+static struct fio_file *find_next_new_file(struct thread_data *td)
+{
+ struct fio_file *f;
+
+ if (td->o.file_service_type == FIO_FSERVICE_RR)
+ f = get_next_file_rr(td, 0, FIO_FILE_OPEN);
+ else
+ f = get_next_file_rand(td, 0, FIO_FILE_OPEN);
+
+ return f;
+}
+
struct io_u *__get_io_u(struct thread_data *td)
{
struct io_u *io_u = NULL;
io_u->buflen = 0;
io_u->resid = 0;
io_u->file = NULL;
+ io_u->end_io = NULL;
}
if (io_u) {
list_del(&io_u->list);
list_add(&io_u->list, &td->io_u_busylist);
td->cur_depth++;
- io_u_mark_depth(td);
}
return io_u;
{
struct fio_file *f;
struct io_u *io_u;
+ int ret;
io_u = __get_io_u(td);
if (!io_u)
if (io_u->file)
goto out;
- f = get_next_file(td);
- if (!f) {
- put_io_u(td, io_u);
- return NULL;
- }
+ do {
+ f = get_next_file(td);
+ if (!f) {
+ put_io_u(td, io_u);
+ return NULL;
+ }
- io_u->file = f;
+set_file:
+ io_u->file = f;
- if (td->zone_bytes >= td->zone_size) {
- td->zone_bytes = 0;
- f->last_pos += td->zone_skip;
- }
+ if (!fill_io_u(td, io_u))
+ break;
- if (fill_io_u(td, f, io_u)) {
- put_io_u(td, io_u);
- return NULL;
+ /*
+ * No more to do for this file, close it
+ */
+ io_u->file = NULL;
+ td_io_close_file(td, f);
+
+ /*
+ * probably not the right place to do this, but see
+ * if we need to open a new file
+ */
+ if (td->nr_open_files < td->o.open_files &&
+ td->o.open_files != td->o.nr_files) {
+ f = find_next_new_file(td);
+
+ if (!f || (ret = td_io_open_file(td, f))) {
+ put_io_u(td, io_u);
+ return NULL;
+ }
+ goto set_file;
+ }
+ } while (1);
+
+ if (td->zone_bytes >= td->o.zone_size) {
+ td->zone_bytes = 0;
+ f->last_pos += td->o.zone_skip;
}
if (io_u->buflen + io_u->offset > f->real_file_size) {
f->last_pos = io_u->offset + io_u->buflen;
- if (td->verify != VERIFY_NONE)
+ if (td->o.verify != VERIFY_NONE)
populate_verify_io_u(td, io_u);
}
return io_u;
}
+void io_u_log_error(struct thread_data *td, struct io_u *io_u)
+{
+ const char *msg[] = { "read", "write", "sync" };
+
+ log_err("fio: io_u error");
+
+ if (io_u->file)
+ log_err(" on file %s", io_u->file->file_name);
+
+ log_err(": %s\n", strerror(io_u->error));
+
+ log_err(" %s offset=%llu, buflen=%lu\n", msg[io_u->ddir], io_u->offset, io_u->xfer_buflen);
+
+ if (!td->error)
+ td_verror(td, io_u->error, "io_u error");
+}
+
static void io_completed(struct thread_data *td, struct io_u *io_u,
struct io_completion_data *icd)
{
assert(io_u->flags & IO_U_F_FLIGHT);
io_u->flags &= ~IO_U_F_FLIGHT;
+ put_file(td, io_u->file);
+
if (io_u->ddir == DDIR_SYNC) {
td->last_was_sync = 1;
return;
icd->bytes_done[idx] += bytes;
- if (icd->handler) {
- ret = icd->handler(io_u);
+ if (io_u->end_io) {
+ ret = io_u->end_io(io_u);
if (ret && !icd->error)
icd->error = ret;
}
- } else
+ } else {
icd->error = io_u->error;
+ io_u_log_error(td, io_u);
+ }
}
-static void init_icd(struct io_completion_data *icd, endio_handler *handler,
- int nr)
+static void init_icd(struct io_completion_data *icd, int nr)
{
fio_gettime(&icd->time, NULL);
- icd->handler = handler;
icd->nr = nr;
icd->error = 0;
/*
* Complete a single io_u for the sync engines.
*/
-long io_u_sync_complete(struct thread_data *td, struct io_u *io_u,
- endio_handler *handler)
+long io_u_sync_complete(struct thread_data *td, struct io_u *io_u)
{
struct io_completion_data icd;
- init_icd(&icd, handler, 1);
+ init_icd(&icd, 1);
io_completed(td, io_u, &icd);
put_io_u(td, io_u);
if (!icd.error)
return icd.bytes_done[0] + icd.bytes_done[1];
+ td_verror(td, icd.error, "io_u_sync_complete");
return -1;
}
/*
* Called to complete min_events number of io for the async engines.
*/
-long io_u_queued_complete(struct thread_data *td, int min_events,
- endio_handler *handler)
-
+long io_u_queued_complete(struct thread_data *td, int min_events)
{
struct io_completion_data icd;
struct timespec *tvp = NULL;
int ret;
- if (min_events > 0) {
- ret = td_io_commit(td);
- if (ret < 0) {
- td_verror(td, -ret);
- return ret;
- }
- } else {
+ if (!min_events) {
struct timespec ts = { .tv_sec = 0, .tv_nsec = 0, };
tvp = &ts;
ret = td_io_getevents(td, min_events, td->cur_depth, tvp);
if (ret < 0) {
- td_verror(td, -ret);
+ td_verror(td, -ret, "td_io_getevents");
return ret;
} else if (!ret)
return ret;
- init_icd(&icd, handler, ret);
+ init_icd(&icd, ret);
ios_completed(td, &icd);
if (!icd.error)
return icd.bytes_done[0] + icd.bytes_done[1];
+ td_verror(td, icd.error, "io_u_queued_complete");
return -1;
}
setitimer(ITIMER_REAL, &td->timer, NULL);
fio_gettime(&td->timeout_end, NULL);
}
+
+static void io_u_dump(struct io_u *io_u)
+{
+ unsigned long t_start = mtime_since_now(&io_u->start_time);
+ unsigned long t_issue = mtime_since_now(&io_u->issue_time);
+
+ log_err("io_u=%p, t_start=%lu, t_issue=%lu\n", io_u, t_start, t_issue);
+ log_err(" buf=%p/%p, len=%lu/%lu, offset=%llu\n", io_u->buf, io_u->xfer_buf, io_u->buflen, io_u->xfer_buflen, io_u->offset);
+ log_err(" ddir=%d, fname=%s\n", io_u->ddir, io_u->file->file_name);
+}
#else
void io_u_set_timeout(struct thread_data fio_unused *td)
{
{
struct thread_data *td, *__td;
pid_t pid = getpid();
+ struct list_head *entry;
+ struct io_u *io_u;
int i;
log_err("fio: io_u timeout\n");
return;
}
- log_err("fio: io_u timeout: job=%s, pid=%d\n", td->name, td->pid);
- td->error = ETIMEDOUT;
+ log_err("fio: io_u timeout: job=%s, pid=%d\n", td->o.name, td->pid);
+
+ list_for_each(entry, &td->io_u_busylist) {
+ io_u = list_entry(entry, struct io_u, list);
+
+ io_u_dump(io_u);
+ }
+
+ td_verror(td, ETIMEDOUT, "io_u timeout");
exit(1);
}
#endif
projects / fio.git / blobdiff