#include "trim.h"
#include "lib/rand.h"
#include "lib/axmap.h"
+#include "err.h"
+#include "lib/pow2.h"
+#include "minmax.h"
struct io_completion_data {
int nr; /* input */
* The ->io_axmap contains a map of blocks we have or have not done io
* to yet. Used to make sure we cover the entire range in a fair fashion.
*/
-static int random_map_free(struct fio_file *f, const uint64_t block)
+static bool random_map_free(struct fio_file *f, const uint64_t block)
{
return !axmap_isset(f->io_axmap, block);
}
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;
};
static int __get_next_rand_offset(struct thread_data *td, struct fio_file *f,
- enum fio_ddir ddir, uint64_t *b)
+ enum fio_ddir ddir, uint64_t *b,
+ uint64_t lastb)
{
- uint64_t r, lastb;
-
- lastb = last_block(td, f, ddir);
- if (!lastb)
- return 1;
-
- if (td->o.random_generator == FIO_RAND_GEN_TAUSWORTHE) {
- uint64_t rmax;
+ uint64_t r;
- rmax = td->o.use_os_rand ? OS_RAND_MAX : FRAND_MAX;
+ if (td->o.random_generator == FIO_RAND_GEN_TAUSWORTHE ||
+ td->o.random_generator == FIO_RAND_GEN_TAUSWORTHE64) {
- if (td->o.use_os_rand) {
- rmax = OS_RAND_MAX;
- r = os_random_long(&td->random_state);
- } else {
- rmax = FRAND_MAX;
- r = __rand(&td->__random_state);
- }
+ r = __rand(&td->random_state);
dprint(FD_RANDOM, "off rand %llu\n", (unsigned long long) r);
- *b = (lastb - 1) * (r / ((uint64_t) rmax + 1.0));
+ *b = lastb * (r / (rand_max(&td->random_state) + 1.0));
} else {
uint64_t off = 0;
- if (lfsr_next(&f->lfsr, &off, lastb))
+ assert(fio_file_lfsr(f));
+
+ if (lfsr_next(&f->lfsr, &off))
return 1;
*b = off;
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 __get_next_rand_offset_zoned(struct thread_data *td,
+ struct fio_file *f, enum fio_ddir ddir,
+ uint64_t *b)
+{
+ unsigned int v, send, stotal;
+ uint64_t offset, lastb;
+ static int warned;
+ struct zone_split_index *zsi;
+
+ lastb = last_block(td, f, ddir);
+ if (!lastb)
+ return 1;
+
+ if (!td->o.zone_split_nr[ddir]) {
+bail:
+ return __get_next_rand_offset(td, f, ddir, b, lastb);
+ }
+
+ /*
+ * Generate a value, v, between 1 and 100, both inclusive
+ */
+ v = rand32_between(&td->zone_state, 1, 100);
+
+ zsi = &td->zone_state_index[ddir][v - 1];
+ stotal = zsi->size_perc_prev;
+ send = zsi->size_perc;
+
+ /*
+ * Should never happen
+ */
+ if (send == -1U) {
+ if (!warned) {
+ log_err("fio: bug in zoned generation\n");
+ warned = 1;
+ }
+ goto bail;
+ }
+
+ /*
+ * 'send' is some percentage below or equal to 100 that
+ * marks the end of the current IO range. 'stotal' marks
+ * the start, in percent.
+ */
+ if (stotal)
+ offset = stotal * lastb / 100ULL;
+ else
+ offset = 0;
+
+ lastb = lastb * (send - stotal) / 100ULL;
+
+ /*
+ * Generate index from 0..send-of-lastb
+ */
+ if (__get_next_rand_offset(td, f, ddir, b, lastb) == 1)
+ return 1;
+
+ /*
+ * Add our start offset, if any
+ */
+ if (offset)
+ *b += offset;
+
+ 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);
static int get_off_from_method(struct thread_data *td, struct fio_file *f,
enum fio_ddir ddir, uint64_t *b)
{
- if (td->o.random_distribution == FIO_RAND_DIST_RANDOM)
- return __get_next_rand_offset(td, f, ddir, b);
- else if (td->o.random_distribution == FIO_RAND_DIST_ZIPF)
+ if (td->o.random_distribution == FIO_RAND_DIST_RANDOM) {
+ uint64_t lastb;
+
+ lastb = last_block(td, f, ddir);
+ if (!lastb)
+ return 1;
+
+ return __get_next_rand_offset(td, f, ddir, b, lastb);
+ } else if (td->o.random_distribution == FIO_RAND_DIST_ZIPF)
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);
+ else if (td->o.random_distribution == FIO_RAND_DIST_ZONED)
+ return __get_next_rand_offset_zoned(td, f, ddir, b);
log_err("fio: unknown random distribution: %d\n", td->o.random_distribution);
return 1;
* Sort the reads for a verify phase in batches of verifysort_nr, if
* specified.
*/
-static inline int should_sort_io(struct thread_data *td)
+static inline bool should_sort_io(struct thread_data *td)
{
if (!td->o.verifysort_nr || !td->o.do_verify)
- return 0;
+ return false;
if (!td_random(td))
- return 0;
+ return false;
if (td->runstate != TD_VERIFYING)
- return 0;
- if (td->o.random_generator == FIO_RAND_GEN_TAUSWORTHE)
- return 0;
+ return false;
+ if (td->o.random_generator == FIO_RAND_GEN_TAUSWORTHE ||
+ td->o.random_generator == FIO_RAND_GEN_TAUSWORTHE64)
+ return false;
- return 1;
+ return true;
}
-static int should_do_random(struct thread_data *td, enum fio_ddir ddir)
+static bool should_do_random(struct thread_data *td, enum fio_ddir ddir)
{
unsigned int v;
- unsigned long r;
if (td->o.perc_rand[ddir] == 100)
- return 1;
+ return true;
- if (td->o.use_os_rand) {
- r = os_random_long(&td->seq_rand_state[ddir]);
- v = 1 + (int) (100.0 * (r / (OS_RAND_MAX + 1.0)));
- } else {
- r = __rand(&td->__seq_rand_state[ddir]);
- v = 1 + (int) (100.0 * (r / (FRAND_MAX + 1.0)));
- }
+ v = rand32_between(&td->seq_rand_state[ddir], 1, 100);
return v <= td->o.perc_rand[ddir];
}
return get_off_from_method(td, f, ddir, b);
if (!flist_empty(&td->next_rand_list)) {
- struct rand_off *r;
fetch:
- r = flist_entry(td->next_rand_list.next, struct rand_off, list);
+ r = flist_first_entry(&td->next_rand_list, struct rand_off, list);
flist_del(&r->list);
*b = r->off;
free(r);
if (!get_next_rand_offset(td, f, ddir, b))
return 0;
- if (td->o.time_based) {
+ if (td->o.time_based ||
+ (td->o.file_service_type & __FIO_FSERVICE_NONUNIFORM)) {
fio_file_reset(td, f);
if (!get_next_rand_offset(td, f, ddir, b))
return 0;
}
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;
}
static int get_next_seq_offset(struct thread_data *td, struct fio_file *f,
enum fio_ddir ddir, uint64_t *offset)
{
+ struct thread_options *o = &td->o;
+
assert(ddir_rw(ddir));
- if (f->last_pos >= f->io_size + get_start_offset(td) && td->o.time_based)
- f->last_pos = f->last_pos - f->io_size;
+ if (f->last_pos[ddir] >= f->io_size + get_start_offset(td, f) &&
+ o->time_based) {
+ struct thread_options *o = &td->o;
+ uint64_t io_size = f->io_size + (f->io_size % o->min_bs[ddir]);
- if (f->last_pos < f->real_file_size) {
+ if (io_size > f->last_pos[ddir])
+ f->last_pos[ddir] = 0;
+ else
+ f->last_pos[ddir] = f->last_pos[ddir] - io_size;
+ }
+
+ if (f->last_pos[ddir] < f->real_file_size) {
uint64_t pos;
- if (f->last_pos == f->file_offset && td->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[ddir] - f->file_offset;
+ if (pos && o->ddir_seq_add) {
+ pos += o->ddir_seq_add;
- pos = f->last_pos - f->file_offset;
- if (pos)
- pos += td->o.ddir_seq_add;
+ /*
+ * If we reach beyond the end of the file
+ * with holed IO, wrap around to the
+ * beginning again. If we're doing backwards IO,
+ * wrap to the end.
+ */
+ if (pos >= f->real_file_size) {
+ if (o->ddir_seq_add > 0)
+ pos = f->file_offset;
+ else
+ pos = f->real_file_size + o->ddir_seq_add;
+ }
+ }
*offset = pos;
return 0;
*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;
return __get_next_offset(td, io_u, is_random);
}
-static inline int io_u_fits(struct thread_data *td, struct io_u *io_u,
- unsigned int buflen)
+static inline bool io_u_fits(struct thread_data *td, struct io_u *io_u,
+ unsigned int buflen)
{
struct fio_file *f = io_u->file;
- return io_u->offset + buflen <= f->io_size + get_start_offset(td);
+ return io_u->offset + buflen <= f->io_size + get_start_offset(td, f);
}
static unsigned int __get_next_buflen(struct thread_data *td, struct io_u *io_u,
int ddir = io_u->ddir;
unsigned int buflen = 0;
unsigned int minbs, maxbs;
- unsigned long r, rand_max;
+ uint64_t frand_max;
+ unsigned long r;
- assert(ddir_rw(io_u->ddir));
+ assert(ddir_rw(ddir));
if (td->o.bs_is_seq_rand)
ddir = is_random ? DDIR_WRITE: DDIR_READ;
- else
- ddir = io_u->ddir;
minbs = td->o.min_bs[ddir];
maxbs = td->o.max_bs[ddir];
if (!io_u_fits(td, io_u, minbs))
return 0;
- if (td->o.use_os_rand)
- rand_max = OS_RAND_MAX;
- else
- rand_max = FRAND_MAX;
-
+ frand_max = rand_max(&td->bsrange_state);
do {
- if (td->o.use_os_rand)
- r = os_random_long(&td->bsrange_state);
- else
- r = __rand(&td->__bsrange_state);
+ r = __rand(&td->bsrange_state);
if (!td->o.bssplit_nr[ddir]) {
buflen = 1 + (unsigned int) ((double) maxbs *
- (r / (rand_max + 1.0)));
+ (r / (frand_max + 1.0)));
if (buflen < minbs)
buflen = minbs;
} else {
buflen = bsp->bs;
perc += bsp->perc;
- if ((r <= ((rand_max / 100L) * perc)) &&
+ if ((r * 100UL <= frand_max * 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)
{
unsigned int v;
- unsigned long r;
- if (td->o.use_os_rand) {
- r = os_random_long(&td->rwmix_state);
- v = 1 + (int) (100.0 * (r / (OS_RAND_MAX + 1.0)));
- } else {
- r = __rand(&td->__rwmix_state);
- v = 1 + (int) (100.0 * (r / (FRAND_MAX + 1.0)));
- }
+ v = rand32_between(&td->rwmix_state, 1, 100);
if (v <= td->o.rwmix[DDIR_READ])
return DDIR_READ;
return DDIR_WRITE;
}
-void io_u_quiesce(struct thread_data *td)
+int io_u_quiesce(struct thread_data *td)
{
+ int completed = 0;
+
/*
* We are going to sleep, ensure that we flush anything pending as
* not to skew our latency numbers.
* 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);
+ if (ret > 0)
+ completed += ret;
}
+
+ return completed;
}
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];
+ usec = td->rate_next_io_time[ddir] - now;
- io_u_quiesce(td);
-
- 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_trim(ddir))
- return ddir;
+ 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)
{
- int ret = put_file(td, f);
+ unsigned int ret = put_file(td, f);
if (ret)
td_verror(td, ret, "file close");
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_FREE_DEF))
+ 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_DEF;
- 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;
}
* See if it's time to switch to a new zone
*/
if (td->zone_bytes >= td->o.zone_size && td->o.zone_skip) {
+ struct fio_file *f = io_u->file;
+
td->zone_bytes = 0;
- io_u->file->file_offset += td->o.zone_range + td->o.zone_skip;
- io_u->file->last_pos = io_u->file->file_offset;
+ f->file_offset += td->o.zone_range + td->o.zone_skip;
+
+ /*
+ * Wrap from the beginning, if we exceed the file size
+ */
+ if (f->file_offset >= f->real_file_size)
+ f->file_offset = f->real_file_size - f->file_offset;
+ f->last_pos[io_u->ddir] = f->file_offset;
td->io_skip_bytes += td->o.zone_skip;
}
io_u_mark_lat_msec(td, usec / 1000);
}
+static unsigned int __get_next_fileno_rand(struct thread_data *td)
+{
+ unsigned long fileno;
+
+ if (td->o.file_service_type == FIO_FSERVICE_RANDOM) {
+ uint64_t frand_max = rand_max(&td->next_file_state);
+ unsigned long r;
+
+ r = __rand(&td->next_file_state);
+ return (unsigned int) ((double) td->o.nr_files
+ * (r / (frand_max + 1.0)));
+ }
+
+ if (td->o.file_service_type == FIO_FSERVICE_ZIPF)
+ fileno = zipf_next(&td->next_file_zipf);
+ else if (td->o.file_service_type == FIO_FSERVICE_PARETO)
+ fileno = pareto_next(&td->next_file_zipf);
+ else if (td->o.file_service_type == FIO_FSERVICE_GAUSS)
+ fileno = gauss_next(&td->next_file_gauss);
+ else {
+ log_err("fio: bad file service type: %d\n", td->o.file_service_type);
+ assert(0);
+ return 0;
+ }
+
+ return fileno >> FIO_FSERVICE_SHIFT;
+}
+
/*
* Get next file to service by choosing one at random
*/
do {
int opened = 0;
- unsigned long r;
- if (td->o.use_os_rand) {
- r = os_random_long(&td->next_file_state);
- fno = (unsigned int) ((double) td->o.nr_files
- * (r / (OS_RAND_MAX + 1.0)));
- } else {
- r = __rand(&td->__next_file_state);
- fno = (unsigned int) ((double) td->o.nr_files
- * (r / (FRAND_MAX + 1.0)));
- }
+ fno = __get_next_fileno_rand(td);
f = td->files[fno];
if (fio_file_done(f))
if (!fio_file_open(f)) {
int err;
+ if (td->nr_open_files >= td->o.open_files)
+ return ERR_PTR(-EBUSY);
+
err = td_io_open_file(td, f);
if (err)
continue;
if (!fio_file_open(f)) {
int err;
+ if (td->nr_open_files >= td->o.open_files)
+ return ERR_PTR(-EBUSY);
+
err = td_io_open_file(td, f);
if (err) {
dprint(FD_FILE, "error %d on open of %s\n",
else
f = get_next_file_rand(td, FIO_FILE_open, FIO_FILE_closing);
+ if (IS_ERR(f))
+ return f;
+
td->file_service_file = f;
td->file_service_left = td->file_service_nr - 1;
out:
- dprint(FD_FILE, "get_next_file: %p [%s]\n", f, f->file_name);
+ if (f)
+ dprint(FD_FILE, "get_next_file: %p [%s]\n", f, f->file_name);
+ else
+ dprint(FD_FILE, "get_next_file: NULL\n");
return f;
}
static struct fio_file *get_next_file(struct thread_data *td)
{
- if (!(td->flags & TD_F_PROFILE_OPS)) {
+ if (td->flags & TD_F_PROFILE_OPS) {
struct prof_io_ops *ops = &td->prof_io_ops;
if (ops->get_next_file)
return __get_next_file(td);
}
-static int set_io_u_file(struct thread_data *td, struct io_u *io_u)
+static long set_io_u_file(struct thread_data *td, struct io_u *io_u)
{
struct fio_file *f;
do {
f = get_next_file(td);
- if (!f)
- return 1;
+ if (IS_ERR_OR_NULL(f))
+ return PTR_ERR(f);
io_u->file = f;
get_file(f);
put_file_log(td, f);
td_io_close_file(td, f);
io_u->file = NULL;
- fio_file_set_done(f);
- td->nr_done_files++;
- dprint(FD_FILE, "%s: is done (%d of %d)\n", f->file_name,
+ if (td->o.file_service_type & __FIO_FSERVICE_NONUNIFORM)
+ fio_file_reset(td, f);
+ else {
+ fio_file_set_done(f);
+ td->nr_done_files++;
+ dprint(FD_FILE, "%s: is done (%d of %d)\n", f->file_name,
td->nr_done_files, td->o.nr_files);
+ }
} while (1);
return 0;
* We had an IO outside the latency target. Reduce the queue depth. If we
* are at QD=1, then it's time to give up.
*/
-static int __lat_target_failed(struct thread_data *td)
+static bool __lat_target_failed(struct thread_data *td)
{
if (td->latency_qd == 1)
- return 1;
+ return true;
td->latency_qd_high = td->latency_qd;
+
+ if (td->latency_qd == td->latency_qd_low)
+ td->latency_qd_low--;
+
td->latency_qd = (td->latency_qd + td->latency_qd_low) / 2;
dprint(FD_RATE, "Ramped down: %d %d %d\n", td->latency_qd_low, td->latency_qd, td->latency_qd_high);
*/
io_u_quiesce(td);
lat_new_cycle(td);
- return 0;
+ return false;
}
-static int lat_target_failed(struct thread_data *td)
+static bool lat_target_failed(struct thread_data *td)
{
if (td->o.latency_percentile.u.f == 100.0)
return __lat_target_failed(td);
td->latency_failed++;
- return 0;
+ return false;
}
void lat_target_init(struct thread_data *td)
{
+ td->latency_end_run = 0;
+
if (td->o.latency_target) {
dprint(FD_RATE, "Latency target=%llu\n", td->o.latency_target);
fio_gettime(&td->latency_ts, NULL);
td->latency_qd = td->o.iodepth;
}
+void lat_target_reset(struct thread_data *td)
+{
+ if (!td->latency_end_run)
+ lat_target_init(td);
+}
+
static void lat_target_success(struct thread_data *td)
{
const unsigned int qd = td->latency_qd;
+ struct thread_options *o = &td->o;
td->latency_qd_low = td->latency_qd;
* of bisecting from highest possible queue depth. If we have set
* a limit other than td->o.iodepth, bisect between that.
*/
- if (td->latency_qd_high != td->o.iodepth)
+ if (td->latency_qd_high != o->iodepth)
td->latency_qd = (td->latency_qd + td->latency_qd_high) / 2;
else
td->latency_qd *= 2;
- if (td->latency_qd > td->o.iodepth)
- td->latency_qd = td->o.iodepth;
+ if (td->latency_qd > o->iodepth)
+ td->latency_qd = o->iodepth;
dprint(FD_RATE, "Ramped up: %d %d %d\n", td->latency_qd_low, td->latency_qd, td->latency_qd_high);
+
/*
- * Same as last one, we are done
+ * Same as last one, we are done. Let it run a latency cycle, so
+ * we get only the results from the targeted depth.
*/
- if (td->latency_qd == qd)
- td->done = 1;
+ if (td->latency_qd == qd) {
+ if (td->latency_end_run) {
+ dprint(FD_RATE, "We are done\n");
+ td->done = 1;
+ } else {
+ dprint(FD_RATE, "Quiesce and final run\n");
+ io_u_quiesce(td);
+ td->latency_end_run = 1;
+ reset_all_stats(td);
+ reset_io_stats(td);
+ }
+ }
lat_new_cycle(td);
}
* If latency target is enabled, we might be ramping up or down and not
* using the full queue depth available.
*/
-int queue_full(struct thread_data *td)
+bool queue_full(const struct thread_data *td)
{
const int qempty = io_u_qempty(&td->io_u_freelist);
if (qempty)
- return 1;
+ return true;
if (!td->o.latency_target)
- return 0;
+ return false;
return td->cur_depth >= td->latency_qd;
}
struct io_u *__get_io_u(struct thread_data *td)
{
- struct io_u *io_u;
+ struct io_u *io_u = NULL;
+
+ if (td->stop_io)
+ return NULL;
td_io_u_lock(td);
else if (!queue_full(td)) {
io_u = io_u_qpop(&td->io_u_freelist);
+ io_u->file = NULL;
io_u->buflen = 0;
io_u->resid = 0;
- io_u->file = NULL;
io_u->end_io = NULL;
}
if (io_u) {
assert(io_u->flags & IO_U_F_FREE);
- io_u->flags &= ~(IO_U_F_FREE | IO_U_F_FREE_DEF);
- io_u->flags &= ~(IO_U_F_TRIMMED | IO_U_F_BARRIER);
- io_u->flags &= ~IO_U_F_VER_LIST;
+ 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;
- } else if (td->o.verify_async) {
+ assert(!(td->flags & TD_F_CHILD));
+ io_u_set(io_u, IO_U_F_IN_CUR_DEPTH);
+ io_u->ipo = NULL;
+ } 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;
}
return io_u;
}
-static int check_get_trim(struct thread_data *td, struct io_u *io_u)
+static bool check_get_trim(struct thread_data *td, struct io_u *io_u)
{
if (!(td->flags & TD_F_TRIM_BACKLOG))
- return 0;
+ return false;
if (td->trim_entries) {
int get_trim = 0;
}
if (get_trim && !get_next_trim(td, io_u))
- return 1;
+ return true;
}
- return 0;
+ return false;
}
-static int check_get_verify(struct thread_data *td, struct io_u *io_u)
+static bool check_get_verify(struct thread_data *td, struct io_u *io_u)
{
if (!(td->flags & TD_F_VER_BACKLOG))
- return 0;
+ return false;
if (td->io_hist_len) {
int get_verify = 0;
if (get_verify && !get_next_verify(td, io_u)) {
td->verify_batch--;
- return 1;
+ return true;
}
}
- return 0;
+ return false;
}
/*
struct fio_file *f;
struct io_u *io_u;
int do_scramble = 0;
+ long ret = 0;
io_u = __get_io_u(td);
if (!io_u) {
if (read_iolog_get(td, io_u))
goto err_put;
} else if (set_io_u_file(td, io_u)) {
+ ret = -EBUSY;
dprint(FD_IO, "io_u %p, setting file failed\n", io_u);
goto err_put;
}
f = io_u->file;
+ if (!f) {
+ dprint(FD_IO, "io_u %p, setting file failed\n", io_u);
+ goto err_put;
+ }
+
assert(fio_file_open(f));
if (ddir_rw(io_u->ddir)) {
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) {
io_u_fill_buffer(td, io_u,
- io_u->xfer_buflen, io_u->xfer_buflen);
- } else if (td->flags & TD_F_SCRAMBLE_BUFFERS)
+ td->o.min_bs[DDIR_WRITE],
+ io_u->buflen);
+ } else if ((td->flags & TD_F_SCRAMBLE_BUFFERS) &&
+ !(td->flags & TD_F_COMPRESS))
do_scramble = 1;
if (td->flags & TD_F_VER_NONE) {
populate_verify_io_u(td, io_u);
out:
assert(io_u->file);
if (!td_io_prep(td, io_u)) {
- if (!td->o.disable_slat)
+ if (!td->o.disable_lat)
fio_gettime(&io_u->start_time, NULL);
if (do_scramble)
small_content_scramble(io_u);
err_put:
dprint(FD_IO, "get_io_u failed\n");
put_io_u(td, io_u);
- return NULL;
+ 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);
- const char *msg[] = { "read", "write", "sync", "datasync",
- "sync_file_range", "wait", "trim" };
if (td_non_fatal_error(td, eb, io_u->error) && !td->o.error_dump)
return;
- log_err("fio: io_u error");
+ log_err("fio: io_u error%s%s: %s: %s offset=%llu, buflen=%lu\n",
+ io_u->file ? " on file " : "",
+ io_u->file ? io_u->file->file_name : "",
+ strerror(io_u->error),
+ io_ddir_name(io_u->ddir),
+ io_u->offset, io_u->xfer_buflen);
- if (io_u->file)
- log_err(" on file %s", io_u->file->file_name);
+ if (td->io_ops->errdetails) {
+ char *err = td->io_ops->errdetails(io_u);
- 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);
+ 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->parent, io_u);
+}
+
+static inline bool gtod_reduce(struct thread_data *td)
+{
+ return (td->o.disable_clat && td->o.disable_slat && td->o.disable_bw)
+ || td->o.gtod_reduce;
+}
+
static void account_io_completion(struct thread_data *td, struct io_u *io_u,
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 (!td->o.disable_clat || !td->o.disable_bw)
+ if (td->parent)
+ td = td->parent;
+
+ if (no_reduce)
lusec = utime_since(&io_u->issue_time, &icd->time);
if (!td->o.disable_lat) {
unsigned long tusec;
tusec = utime_since(&io_u->start_time, &icd->time);
- add_lat_sample(td, idx, tusec, bytes);
+ add_lat_sample(td, idx, tusec, bytes, io_u->offset);
if (td->flags & TD_F_PROFILE_OPS) {
struct prof_io_ops *ops = &td->prof_io_ops;
}
}
- if (!td->o.disable_clat) {
- add_clat_sample(td, idx, lusec, bytes);
- io_u_mark_latency(td, lusec);
- }
+ if (ddir_rw(idx)) {
+ if (!td->o.disable_clat) {
+ add_clat_sample(td, idx, lusec, bytes, io_u->offset);
+ io_u_mark_latency(td, lusec);
+ }
- if (!td->o.disable_bw)
- add_bw_sample(td, idx, bytes, &icd->time);
+ if (!td->o.disable_bw && per_unit_log(td->bw_log))
+ add_bw_sample(td, io_u, bytes, lusec);
- add_iops_sample(td, idx, bytes, &icd->time);
+ if (no_reduce && per_unit_log(td->iops_log))
+ add_iops_sample(td, io_u, bytes);
+ }
- if (td->o.number_ios && !--td->o.number_ios)
- td->done = 1;
+ 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 long long usec_for_io(struct thread_data *td, enum fio_ddir ddir)
+static void file_log_write_comp(const struct thread_data *td, struct fio_file *f,
+ uint64_t offset, unsigned int bytes)
{
- uint64_t secs, remainder, bps, bytes;
+ int idx;
+
+ if (!f)
+ return;
+
+ if (f->first_write == -1ULL || offset < f->first_write)
+ f->first_write = offset;
+ if (f->last_write == -1ULL || ((offset + bytes) > f->last_write))
+ f->last_write = offset + bytes;
+
+ if (!f->last_write_comp)
+ return;
- bytes = td->this_io_bytes[ddir];
- bps = td->rate_bps[ddir];
- secs = bytes / bps;
- remainder = bytes % bps;
- return remainder * 1000000 / bps + secs * 1000000;
+ idx = f->last_write_idx++;
+ f->last_write_comp[idx] = offset;
+ if (f->last_write_idx == td->o.iodepth)
+ f->last_write_idx = 0;
}
-static void io_completed(struct thread_data *td, struct io_u *io_u,
+static void io_completed(struct thread_data *td, struct io_u **io_u_ptr,
struct io_completion_data *icd)
{
- struct fio_file *f;
+ struct io_u *io_u = *io_u_ptr;
+ enum fio_ddir ddir = io_u->ddir;
+ struct fio_file *f = io_u->file;
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);
- td_io_u_unlock(td);
+ io_u_clear(io_u, IO_U_F_FLIGHT | IO_U_F_BUSY_OK);
- if (ddir_sync(io_u->ddir)) {
+ /*
+ * Mark IO ok to verify
+ */
+ if (io_u->ipo) {
+ /*
+ * Remove errored entry from the verification list
+ */
+ if (io_u->error)
+ unlog_io_piece(td, io_u);
+ else {
+ io_u->ipo->flags &= ~IP_F_IN_FLIGHT;
+ write_barrier();
+ }
+ }
+
+ if (ddir_sync(ddir)) {
td->last_was_sync = 1;
- f = io_u->file;
if (f) {
f->first_write = -1ULL;
f->last_write = -1ULL;
}
td->last_was_sync = 0;
- td->last_ddir = io_u->ddir;
+ td->last_ddir = ddir;
- if (!io_u->error && ddir_rw(io_u->ddir)) {
+ if (!io_u->error && ddir_rw(ddir)) {
unsigned int bytes = io_u->buflen - io_u->resid;
- const enum fio_ddir idx = io_u->ddir;
- const enum fio_ddir odx = io_u->ddir ^ 1;
int ret;
- td->io_blocks[idx]++;
- td->this_io_blocks[idx]++;
- td->io_bytes[idx] += bytes;
+ td->io_blocks[ddir]++;
+ td->this_io_blocks[ddir]++;
+ td->io_bytes[ddir] += bytes;
if (!(io_u->flags & IO_U_F_VER_LIST))
- td->this_io_bytes[idx] += bytes;
-
- if (idx == DDIR_WRITE) {
- f = io_u->file;
- if (f) {
- if (f->first_write == -1ULL ||
- io_u->offset < f->first_write)
- f->first_write = io_u->offset;
- if (f->last_write == -1ULL ||
- ((io_u->offset + bytes) > f->last_write))
- f->last_write = io_u->offset + bytes;
- }
- }
+ td->this_io_bytes[ddir] += bytes;
- if (ramp_time_over(td) && (td->runstate == TD_RUNNING ||
- td->runstate == TD_VERIFYING)) {
- account_io_completion(td, io_u, icd, idx, bytes);
-
- if (__should_check_rate(td, idx)) {
- td->rate_pending_usleep[idx] =
- (usec_for_io(td, idx) -
- utime_since_now(&td->start));
- }
- if (idx != DDIR_TRIM && __should_check_rate(td, odx))
- td->rate_pending_usleep[odx] =
- (usec_for_io(td, odx) -
- utime_since_now(&td->start));
- }
+ if (ddir == DDIR_WRITE)
+ file_log_write_comp(td, f, io_u->offset, bytes);
- if (td_write(td) && idx == DDIR_WRITE &&
- td->o.do_verify &&
- td->o.verify != VERIFY_NONE &&
- !td->o.experimental_verify)
- log_io_piece(td, io_u);
+ if (ramp_time_over(td) && (td->runstate == TD_RUNNING ||
+ td->runstate == TD_VERIFYING))
+ account_io_completion(td, io_u, icd, ddir, bytes);
- icd->bytes_done[idx] += bytes;
+ icd->bytes_done[ddir] += bytes;
if (io_u->end_io) {
- ret = io_u->end_io(td, io_u);
+ ret = io_u->end_io(td, io_u_ptr);
+ io_u = *io_u_ptr;
if (ret && !icd->error)
icd->error = ret;
}
io_u_log_error(td, io_u);
}
if (icd->error) {
- enum error_type_bit eb = td_error_type(io_u->ddir, icd->error);
+ enum error_type_bit eb = td_error_type(ddir, icd->error);
+
if (!td_non_fatal_error(td, eb, icd->error))
return;
+
/*
* If there is a non_fatal error, then add to the error count
* and clear all the errors.
update_error_count(td, icd->error);
td_clear_error(td);
icd->error = 0;
- io_u->error = 0;
+ if (io_u)
+ io_u->error = 0;
}
}
int nr)
{
int ddir;
- if (!td->o.disable_clat || !td->o.disable_bw)
+
+ if (!gtod_reduce(td))
fio_gettime(&icd->time, NULL);
icd->nr = nr;
for (i = 0; i < icd->nr; i++) {
io_u = td->io_ops->event(td, i);
- io_completed(td, io_u, icd);
+ io_completed(td, &io_u, icd);
- if (!(io_u->flags & IO_U_F_FREE_DEF))
+ if (io_u)
put_io_u(td, io_u);
}
}
/*
* 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);
+ io_completed(td, &io_u, &icd);
- if (!(io_u->flags & IO_U_F_FREE_DEF))
+ if (io_u)
put_io_u(td, io_u);
if (icd.error) {
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);
if (!min_evts)
tvp = &ts;
+ 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;
+ return ret;
}
/*
unsigned long slat_time;
slat_time = utime_since(&io_u->start_time, &io_u->issue_time);
- add_slat_sample(td, io_u->ddir, slat_time, io_u->xfer_buflen);
+
+ if (td->parent)
+ td = td->parent;
+
+ add_slat_sample(td, io_u->ddir, slat_time, io_u->xfer_buflen,
+ io_u->offset);
}
}
+/*
+ * See if we should reuse the last seed, if dedupe is enabled
+ */
+static struct frand_state *get_buf_state(struct thread_data *td)
+{
+ unsigned int v;
+
+ if (!td->o.dedupe_percentage)
+ return &td->buf_state;
+ else if (td->o.dedupe_percentage == 100) {
+ frand_copy(&td->buf_state_prev, &td->buf_state);
+ return &td->buf_state;
+ }
+
+ v = rand32_between(&td->dedupe_state, 1, 100);
+
+ if (v <= td->o.dedupe_percentage)
+ return &td->buf_state_prev;
+
+ return &td->buf_state;
+}
+
+static void save_buf_state(struct thread_data *td, struct frand_state *rs)
+{
+ 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;
- if (perc) {
- unsigned int seg = min_write;
+ do {
+ rs = get_buf_state(td);
- seg = min(min_write, td->o.compress_chunk);
- if (!seg)
- seg = min_write;
+ min_write = min(min_write, left);
- fill_random_buf_percentage(&td->buf_state, buf,
- perc, seg, max_bs);
- } else
- fill_random_buf(&td->buf_state, buf, max_bs);
- } else
+ if (perc) {
+ this_write = min_not_zero(min_write,
+ td->o.compress_chunk);
+
+ 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 += this_write;
+ left -= this_write;
+ save_buf_state(td, rs);
+ } while (left);
+ } 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