#include "lib/rand.h"
#include "lib/axmap.h"
#include "err.h"
+#include "lib/pow2.h"
struct io_completion_data {
int nr; /* input */
if (td->o.zone_range)
max_size = td->o.zone_range;
+ if (td->o.min_bs[ddir] > td->o.ba[ddir])
+ max_size -= td->o.min_bs[ddir] - td->o.ba[ddir];
+
max_blocks = max_size / (uint64_t) td->o.ba[ddir];
if (!max_blocks)
return 0;
{
uint64_t r;
- if (td->o.random_generator == FIO_RAND_GEN_TAUSWORTHE) {
- uint64_t lastb;
+ if (td->o.random_generator == FIO_RAND_GEN_TAUSWORTHE ||
+ td->o.random_generator == FIO_RAND_GEN_TAUSWORTHE64) {
+ uint64_t frand_max, lastb;
lastb = last_block(td, f, ddir);
if (!lastb)
return 1;
+ frand_max = rand_max(&td->random_state);
r = __rand(&td->random_state);
dprint(FD_RANDOM, "off rand %llu\n", (unsigned long long) r);
- *b = lastb * (r / ((uint64_t) FRAND_MAX + 1.0));
+ *b = lastb * (r / ((uint64_t) frand_max + 1.0));
} else {
uint64_t off = 0;
+ assert(fio_file_lfsr(f));
+
if (lfsr_next(&f->lfsr, &off))
return 1;
return 0;
}
+static int __get_next_rand_offset_gauss(struct thread_data *td,
+ struct fio_file *f, enum fio_ddir ddir,
+ uint64_t *b)
+{
+ *b = gauss_next(&f->gauss);
+ return 0;
+}
+
+
static int flist_cmp(void *data, struct flist_head *a, struct flist_head *b)
{
struct rand_off *r1 = flist_entry(a, struct rand_off, list);
return __get_next_rand_offset_zipf(td, f, ddir, b);
else if (td->o.random_distribution == FIO_RAND_DIST_PARETO)
return __get_next_rand_offset_pareto(td, f, ddir, b);
+ else if (td->o.random_distribution == FIO_RAND_DIST_GAUSS)
+ return __get_next_rand_offset_gauss(td, f, ddir, b);
log_err("fio: unknown random distribution: %d\n", td->o.random_distribution);
return 1;
return 0;
if (td->runstate != TD_VERIFYING)
return 0;
- if (td->o.random_generator == FIO_RAND_GEN_TAUSWORTHE)
+ if (td->o.random_generator == FIO_RAND_GEN_TAUSWORTHE ||
+ td->o.random_generator == FIO_RAND_GEN_TAUSWORTHE64)
return 0;
return 1;
static int should_do_random(struct thread_data *td, enum fio_ddir ddir)
{
+ uint64_t frand_max;
unsigned int v;
unsigned long r;
if (td->o.perc_rand[ddir] == 100)
return 1;
+ frand_max = rand_max(&td->seq_rand_state[ddir]);
r = __rand(&td->seq_rand_state[ddir]);
- v = 1 + (int) (100.0 * (r / (FRAND_MAX + 1.0)));
+ v = 1 + (int) (100.0 * (r / (frand_max + 1.0)));
return v <= td->o.perc_rand[ddir];
}
}
dprint(FD_IO, "%s: rand offset failed, last=%llu, size=%llu\n",
- f->file_name, (unsigned long long) f->last_pos,
+ f->file_name, (unsigned long long) f->last_pos[ddir],
(unsigned long long) f->real_file_size);
return 1;
}
assert(ddir_rw(ddir));
- if (f->last_pos >= f->io_size + get_start_offset(td, f) &&
+ if (f->last_pos[ddir] >= f->io_size + get_start_offset(td, f) &&
o->time_based)
- f->last_pos = f->last_pos - f->io_size;
+ f->last_pos[ddir] = f->last_pos[ddir] - f->io_size;
- if (f->last_pos < f->real_file_size) {
+ if (f->last_pos[ddir] < f->real_file_size) {
uint64_t pos;
- if (f->last_pos == f->file_offset && o->ddir_seq_add < 0)
- f->last_pos = f->real_file_size;
+ if (f->last_pos[ddir] == f->file_offset && o->ddir_seq_add < 0)
+ f->last_pos[ddir] = f->real_file_size;
- pos = f->last_pos - f->file_offset;
+ pos = f->last_pos[ddir] - f->file_offset;
if (pos && o->ddir_seq_add) {
pos += o->ddir_seq_add;
*is_random = 1;
} else {
*is_random = 0;
- io_u->flags |= IO_U_F_BUSY_OK;
+ io_u_set(io_u, IO_U_F_BUSY_OK);
ret = get_next_seq_offset(td, f, ddir, &offset);
if (ret)
ret = get_next_rand_block(td, f, ddir, &b);
ret = get_next_seq_offset(td, f, ddir, &offset);
}
} else {
- io_u->flags |= IO_U_F_BUSY_OK;
+ io_u_set(io_u, IO_U_F_BUSY_OK);
*is_random = 0;
if (td->o.rw_seq == RW_SEQ_SEQ) {
*is_random = 0;
}
} else if (td->o.rw_seq == RW_SEQ_IDENT) {
- if (f->last_start != -1ULL)
- offset = f->last_start - f->file_offset;
+ if (f->last_start[ddir] != -1ULL)
+ offset = f->last_start[ddir] - f->file_offset;
else
offset = 0;
ret = 0;
int ddir = io_u->ddir;
unsigned int buflen = 0;
unsigned int minbs, maxbs;
+ uint64_t frand_max;
unsigned long r;
assert(ddir_rw(ddir));
if (!io_u_fits(td, io_u, minbs))
return 0;
+ frand_max = rand_max(&td->bsrange_state);
do {
r = __rand(&td->bsrange_state);
if (!td->o.bssplit_nr[ddir]) {
buflen = 1 + (unsigned int) ((double) maxbs *
- (r / (FRAND_MAX + 1.0)));
+ (r / (frand_max + 1.0)));
if (buflen < minbs)
buflen = minbs;
} else {
buflen = bsp->bs;
perc += bsp->perc;
- if ((r <= ((FRAND_MAX / 100L) * perc)) &&
+ if ((r <= ((frand_max / 100L) * perc)) &&
io_u_fits(td, io_u, buflen))
break;
}
}
- if (td->o.do_verify && td->o.verify != VERIFY_NONE)
+ if (td->o.verify != VERIFY_NONE)
buflen = (buflen + td->o.verify_interval - 1) &
~(td->o.verify_interval - 1);
if (!td->o.bs_unaligned && is_power_of_2(minbs))
- buflen = (buflen + minbs - 1) & ~(minbs - 1);
+ buflen &= ~(minbs - 1);
} while (!io_u_fits(td, io_u, buflen));
static inline enum fio_ddir get_rand_ddir(struct thread_data *td)
{
+ uint64_t frand_max = rand_max(&td->rwmix_state);
unsigned int v;
unsigned long r;
r = __rand(&td->rwmix_state);
- v = 1 + (int) (100.0 * (r / (FRAND_MAX + 1.0)));
+ v = 1 + (int) (100.0 * (r / (frand_max + 1.0)));
if (v <= td->o.rwmix[DDIR_READ])
return DDIR_READ;
* io's that have been actually submitted to an async engine,
* and cur_depth is meaningless for sync engines.
*/
+ if (td->io_u_queued || td->cur_depth) {
+ int fio_unused ret;
+
+ ret = td_io_commit(td);
+ }
+
while (td->io_u_in_flight) {
int fio_unused ret;
- ret = io_u_queued_complete(td, 1, NULL);
+ ret = io_u_queued_complete(td, 1);
}
}
static enum fio_ddir rate_ddir(struct thread_data *td, enum fio_ddir ddir)
{
enum fio_ddir odir = ddir ^ 1;
- struct timeval t;
- long usec;
+ long usec, now;
assert(ddir_rw(ddir));
+ now = utime_since_now(&td->start);
- if (td->rate_pending_usleep[ddir] <= 0)
+ /*
+ * if rate_next_io_time is in the past, need to catch up to rate
+ */
+ if (td->rate_next_io_time[ddir] <= now)
return ddir;
/*
- * We have too much pending sleep in this direction. See if we
+ * We are ahead of rate in this direction. See if we
* should switch.
*/
if (td_rw(td) && td->o.rwmix[odir]) {
/*
- * Other direction does not have too much pending, switch
+ * Other direction is behind rate, switch
*/
- if (td->rate_pending_usleep[odir] < 100000)
+ if (td->rate_next_io_time[odir] <= now)
return odir;
/*
- * Both directions have pending sleep. Sleep the minimum time
- * and deduct from both.
+ * Both directions are ahead of rate. sleep the min
+ * switch if necissary
*/
- if (td->rate_pending_usleep[ddir] <=
- td->rate_pending_usleep[odir]) {
- usec = td->rate_pending_usleep[ddir];
+ if (td->rate_next_io_time[ddir] <=
+ td->rate_next_io_time[odir]) {
+ usec = td->rate_next_io_time[ddir] - now;
} else {
- usec = td->rate_pending_usleep[odir];
+ usec = td->rate_next_io_time[odir] - now;
ddir = odir;
}
} else
- usec = td->rate_pending_usleep[ddir];
-
- io_u_quiesce(td);
+ usec = td->rate_next_io_time[ddir] - now;
- fio_gettime(&t, NULL);
- usec_sleep(td, usec);
- usec = utime_since_now(&t);
+ if (td->o.io_submit_mode == IO_MODE_INLINE)
+ io_u_quiesce(td);
- td->rate_pending_usleep[ddir] -= usec;
-
- odir = ddir ^ 1;
- if (td_rw(td) && __should_check_rate(td, odir))
- td->rate_pending_usleep[odir] -= usec;
-
- if (ddir == DDIR_TRIM)
- return DDIR_TRIM;
+ usec = usec_sleep(td, usec);
return ddir;
}
static void set_rw_ddir(struct thread_data *td, struct io_u *io_u)
{
- io_u->ddir = io_u->acct_ddir = get_rw_ddir(td);
+ enum fio_ddir ddir = get_rw_ddir(td);
+
+ if (td_trimwrite(td)) {
+ struct fio_file *f = io_u->file;
+ if (f->last_pos[DDIR_WRITE] == f->last_pos[DDIR_TRIM])
+ ddir = DDIR_TRIM;
+ else
+ ddir = DDIR_WRITE;
+ }
+
+ io_u->ddir = io_u->acct_ddir = ddir;
if (io_u->ddir == DDIR_WRITE && (td->io_ops->flags & FIO_BARRIER) &&
td->o.barrier_blocks &&
!(td->io_issues[DDIR_WRITE] % td->o.barrier_blocks) &&
td->io_issues[DDIR_WRITE])
- io_u->flags |= IO_U_F_BARRIER;
+ io_u_set(io_u, IO_U_F_BARRIER);
}
void put_file_log(struct thread_data *td, struct fio_file *f)
void put_io_u(struct thread_data *td, struct io_u *io_u)
{
+ if (td->parent)
+ td = td->parent;
+
td_io_u_lock(td);
if (io_u->file && !(io_u->flags & IO_U_F_NO_FILE_PUT))
put_file_log(td, io_u->file);
io_u->file = NULL;
- io_u->flags |= IO_U_F_FREE;
+ io_u_set(io_u, IO_U_F_FREE);
- if (io_u->flags & IO_U_F_IN_CUR_DEPTH)
+ if (io_u->flags & IO_U_F_IN_CUR_DEPTH) {
td->cur_depth--;
+ assert(!(td->flags & TD_F_CHILD));
+ }
io_u_qpush(&td->io_u_freelist, io_u);
td_io_u_unlock(td);
td_io_u_free_notify(td);
void clear_io_u(struct thread_data *td, struct io_u *io_u)
{
- io_u->flags &= ~IO_U_F_FLIGHT;
+ io_u_clear(io_u, IO_U_F_FLIGHT);
put_io_u(td, io_u);
}
dprint(FD_IO, "requeue %p\n", __io_u);
+ if (td->parent)
+ td = td->parent;
+
td_io_u_lock(td);
- __io_u->flags |= IO_U_F_FREE;
+ io_u_set(__io_u, IO_U_F_FREE);
if ((__io_u->flags & IO_U_F_FLIGHT) && ddir_rw(ddir))
td->io_issues[ddir]--;
- __io_u->flags &= ~IO_U_F_FLIGHT;
- if (__io_u->flags & IO_U_F_IN_CUR_DEPTH)
+ io_u_clear(__io_u, IO_U_F_FLIGHT);
+ if (__io_u->flags & IO_U_F_IN_CUR_DEPTH) {
td->cur_depth--;
+ assert(!(td->flags & TD_F_CHILD));
+ }
io_u_rpush(&td->io_u_requeues, __io_u);
td_io_u_unlock(td);
+ td_io_u_free_notify(td);
*io_u = NULL;
}
*/
if (f->file_offset >= f->real_file_size)
f->file_offset = f->real_file_size - f->file_offset;
- f->last_pos = f->file_offset;
+ f->last_pos[io_u->ddir] = f->file_offset;
td->io_skip_bytes += td->o.zone_skip;
}
enum fio_file_flags goodf,
enum fio_file_flags badf)
{
+ uint64_t frand_max = rand_max(&td->next_file_state);
struct fio_file *f;
int fno;
r = __rand(&td->next_file_state);
fno = (unsigned int) ((double) td->o.nr_files
- * (r / (FRAND_MAX + 1.0)));
+ * (r / (frand_max + 1.0)));
f = td->files[fno];
if (fio_file_done(f))
if (io_u) {
assert(io_u->flags & IO_U_F_FREE);
- io_u->flags &= ~(IO_U_F_FREE | IO_U_F_NO_FILE_PUT |
+ io_u_clear(io_u, IO_U_F_FREE | IO_U_F_NO_FILE_PUT |
IO_U_F_TRIMMED | IO_U_F_BARRIER |
IO_U_F_VER_LIST);
io_u->error = 0;
io_u->acct_ddir = -1;
td->cur_depth++;
- io_u->flags |= IO_U_F_IN_CUR_DEPTH;
+ assert(!(td->flags & TD_F_CHILD));
+ io_u_set(io_u, IO_U_F_IN_CUR_DEPTH);
io_u->ipo = NULL;
- } else if (td->o.verify_async) {
+ } else if (td_async_processing(td)) {
/*
* We ran out, wait for async verify threads to finish and
* return one
*/
- pthread_cond_wait(&td->free_cond, &td->io_u_lock);
+ assert(!(td->flags & TD_F_CHILD));
+ assert(!pthread_cond_wait(&td->free_cond, &td->io_u_lock));
goto again;
}
goto err_put;
}
- f->last_start = io_u->offset;
- f->last_pos = io_u->offset + io_u->buflen;
+ f->last_start[io_u->ddir] = io_u->offset;
+ f->last_pos[io_u->ddir] = io_u->offset + io_u->buflen;
if (io_u->ddir == DDIR_WRITE) {
if (td->flags & TD_F_REFILL_BUFFERS) {
return ERR_PTR(ret);
}
-void io_u_log_error(struct thread_data *td, struct io_u *io_u)
+static void __io_u_log_error(struct thread_data *td, struct io_u *io_u)
{
enum error_type_bit eb = td_error_type(io_u->ddir, io_u->error);
io_ddir_name(io_u->ddir),
io_u->offset, io_u->xfer_buflen);
+ if (td->io_ops->errdetails) {
+ char *err = td->io_ops->errdetails(io_u);
+
+ log_err("fio: %s\n", err);
+ free(err);
+ }
+
if (!td->error)
td_verror(td, io_u->error, "io_u error");
}
+void io_u_log_error(struct thread_data *td, struct io_u *io_u)
+{
+ __io_u_log_error(td, io_u);
+ if (td->parent)
+ __io_u_log_error(td, io_u);
+}
+
static inline int gtod_reduce(struct thread_data *td)
{
return td->o.disable_clat && td->o.disable_lat && td->o.disable_slat
struct io_completion_data *icd,
const enum fio_ddir idx, unsigned int bytes)
{
+ const int no_reduce = !gtod_reduce(td);
unsigned long lusec = 0;
- if (!gtod_reduce(td))
+ if (td->parent)
+ td = td->parent;
+
+ if (no_reduce)
lusec = utime_since(&io_u->issue_time, &icd->time);
if (!td->o.disable_lat) {
if (!td->o.disable_bw)
add_bw_sample(td, idx, bytes, &icd->time);
- if (!gtod_reduce(td))
+ if (no_reduce)
add_iops_sample(td, idx, bytes, &icd->time);
-}
-
-static long long usec_for_io(struct thread_data *td, enum fio_ddir ddir)
-{
- uint64_t secs, remainder, bps, bytes;
- bytes = td->this_io_bytes[ddir];
- bps = td->rate_bps[ddir];
- secs = bytes / bps;
- remainder = bytes % bps;
- return remainder * 1000000 / bps + secs * 1000000;
+ if (td->ts.nr_block_infos && io_u->ddir == DDIR_TRIM) {
+ uint32_t *info = io_u_block_info(td, io_u);
+ if (BLOCK_INFO_STATE(*info) < BLOCK_STATE_TRIM_FAILURE) {
+ if (io_u->ddir == DDIR_TRIM) {
+ *info = BLOCK_INFO(BLOCK_STATE_TRIMMED,
+ BLOCK_INFO_TRIMS(*info) + 1);
+ } else if (io_u->ddir == DDIR_WRITE) {
+ *info = BLOCK_INFO_SET_STATE(BLOCK_STATE_WRITTEN,
+ *info);
+ }
+ }
+ }
}
static void io_completed(struct thread_data *td, struct io_u **io_u_ptr,
dprint_io_u(io_u, "io complete");
- td_io_u_lock(td);
assert(io_u->flags & IO_U_F_FLIGHT);
- io_u->flags &= ~(IO_U_F_FLIGHT | IO_U_F_BUSY_OK);
+ io_u_clear(io_u, IO_U_F_FLIGHT | IO_U_F_BUSY_OK);
/*
* Mark IO ok to verify
}
}
- td_io_u_unlock(td);
-
if (ddir_sync(ddir)) {
td->last_was_sync = 1;
if (f) {
if (!io_u->error && ddir_rw(ddir)) {
unsigned int bytes = io_u->buflen - io_u->resid;
- const enum fio_ddir oddir = ddir ^ 1;
int ret;
td->io_blocks[ddir]++;
}
if (ramp_time_over(td) && (td->runstate == TD_RUNNING ||
- td->runstate == TD_VERIFYING)) {
+ td->runstate == TD_VERIFYING))
account_io_completion(td, io_u, icd, ddir, bytes);
- if (__should_check_rate(td, ddir)) {
- td->rate_pending_usleep[ddir] =
- (usec_for_io(td, ddir) -
- utime_since_now(&td->start));
- }
- if (ddir != DDIR_TRIM &&
- __should_check_rate(td, oddir)) {
- td->rate_pending_usleep[oddir] =
- (usec_for_io(td, oddir) -
- utime_since_now(&td->start));
- }
- }
-
icd->bytes_done[ddir] += bytes;
if (io_u->end_io) {
/*
* Complete a single io_u for the sync engines.
*/
-int io_u_sync_complete(struct thread_data *td, struct io_u *io_u,
- uint64_t *bytes)
+int io_u_sync_complete(struct thread_data *td, struct io_u *io_u)
{
struct io_completion_data icd;
+ int ddir;
init_icd(td, &icd, 1);
io_completed(td, &io_u, &icd);
return -1;
}
- if (bytes) {
- int ddir;
-
- for (ddir = DDIR_READ; ddir < DDIR_RWDIR_CNT; ddir++)
- bytes[ddir] += icd.bytes_done[ddir];
- }
+ for (ddir = DDIR_READ; ddir < DDIR_RWDIR_CNT; ddir++)
+ td->bytes_done[ddir] += icd.bytes_done[ddir];
return 0;
}
/*
* Called to complete min_events number of io for the async engines.
*/
-int io_u_queued_complete(struct thread_data *td, int min_evts,
- uint64_t *bytes)
+int io_u_queued_complete(struct thread_data *td, int min_evts)
{
struct io_completion_data icd;
struct timespec *tvp = NULL;
- int ret;
+ int ret, ddir;
struct timespec ts = { .tv_sec = 0, .tv_nsec = 0, };
dprint(FD_IO, "io_u_queued_completed: min=%d\n", min_evts);
else if (min_evts > td->cur_depth)
min_evts = td->cur_depth;
- ret = td_io_getevents(td, min_evts, td->o.iodepth_batch_complete, tvp);
+ /* No worries, td_io_getevents fixes min and max if they are
+ * set incorrectly */
+ ret = td_io_getevents(td, min_evts, td->o.iodepth_batch_complete_max, tvp);
if (ret < 0) {
td_verror(td, -ret, "td_io_getevents");
return ret;
return -1;
}
- if (bytes) {
- int ddir;
-
- for (ddir = DDIR_READ; ddir < DDIR_RWDIR_CNT; ddir++)
- bytes[ddir] += icd.bytes_done[ddir];
- }
+ for (ddir = DDIR_READ; ddir < DDIR_RWDIR_CNT; ddir++)
+ td->bytes_done[ddir] += icd.bytes_done[ddir];
return 0;
}
unsigned long slat_time;
slat_time = utime_since(&io_u->start_time, &io_u->issue_time);
+
+ if (td->parent)
+ td = td->parent;
+
add_slat_sample(td, io_u->ddir, slat_time, io_u->xfer_buflen,
io_u->offset);
}
*/
static struct frand_state *get_buf_state(struct thread_data *td)
{
+ uint64_t frand_max;
unsigned int v;
unsigned long r;
if (!td->o.dedupe_percentage)
return &td->buf_state;
- else if (td->o.dedupe_percentage == 100)
- return &td->buf_state_prev;
+ else if (td->o.dedupe_percentage == 100) {
+ frand_copy(&td->buf_state_prev, &td->buf_state);
+ return &td->buf_state;
+ }
+ frand_max = rand_max(&td->dedupe_state);
r = __rand(&td->dedupe_state);
- v = 1 + (int) (100.0 * (r / (FRAND_MAX + 1.0)));
+ v = 1 + (int) (100.0 * (r / (frand_max + 1.0)));
if (v <= td->o.dedupe_percentage)
return &td->buf_state_prev;
static void save_buf_state(struct thread_data *td, struct frand_state *rs)
{
- if (rs == &td->buf_state)
+ if (td->o.dedupe_percentage == 100)
+ frand_copy(rs, &td->buf_state_prev);
+ else if (rs == &td->buf_state)
frand_copy(&td->buf_state_prev, rs);
}
void fill_io_buffer(struct thread_data *td, void *buf, unsigned int min_write,
unsigned int max_bs)
{
- if (td->o.buffer_pattern_bytes)
- fill_buffer_pattern(td, buf, max_bs);
- else if (!td->o.zero_buffers) {
+ struct thread_options *o = &td->o;
+
+ if (o->compress_percentage || o->dedupe_percentage) {
unsigned int perc = td->o.compress_percentage;
struct frand_state *rs;
unsigned int left = max_bs;
+ unsigned int this_write;
do {
rs = get_buf_state(td);
min_write = min(min_write, left);
if (perc) {
- unsigned int seg = min_write;
-
- seg = min(min_write, td->o.compress_chunk);
- if (!seg)
- seg = min_write;
-
- fill_random_buf_percentage(rs, buf, perc, seg,
- min_write);
- } else
+ this_write = min(min_write, td->o.compress_chunk);
+ if (!this_write)
+ this_write = min_write;
+
+ fill_random_buf_percentage(rs, buf, perc,
+ this_write, this_write,
+ o->buffer_pattern,
+ o->buffer_pattern_bytes);
+ } else {
fill_random_buf(rs, buf, min_write);
+ this_write = min_write;
+ }
- buf += min_write;
- left -= min_write;
+ buf += this_write;
+ left -= this_write;
save_buf_state(td, rs);
} while (left);
- } else
+ } else if (o->buffer_pattern_bytes)
+ fill_buffer_pattern(td, buf, max_bs);
+ else if (o->zero_buffers)
memset(buf, 0, max_bs);
+ else
+ fill_random_buf(get_buf_state(td), buf, max_bs);
}
/*
projects / fio.git / blobdiff