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)
{
- uint64_t r, lastb;
-
- lastb = last_block(td, f, ddir);
- if (!lastb)
- return 1;
+ uint64_t r;
if (td->o.random_generator == FIO_RAND_GEN_TAUSWORTHE) {
- uint64_t rmax;
+ uint64_t lastb;
- rmax = td->o.use_os_rand ? OS_RAND_MAX : FRAND_MAX;
+ lastb = last_block(td, f, ddir);
+ if (!lastb)
+ return 1;
- 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 * (r / ((uint64_t) rmax + 1.0));
+ *b = lastb * (r / ((uint64_t) FRAND_MAX + 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;
if (td->o.perc_rand[ddir] == 100)
return 1;
- 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)));
- }
+ r = __rand(&td->seq_rand_state[ddir]);
+ v = 1 + (int) (100.0 * (r / (FRAND_MAX + 1.0)));
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_first_entry(&td->next_rand_list, struct rand_off, list);
flist_del(&r->list);
}
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, f) && 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)
+ 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 && 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 (pos >= f->real_file_size)
+ pos = f->file_offset;
+ }
*offset = pos;
return 0;
*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;
- unsigned long r, rand_max;
+ unsigned long r;
assert(ddir_rw(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;
-
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 <= ((FRAND_MAX / 100L) * perc)) &&
io_u_fits(td, io_u, buflen))
break;
}
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)));
- }
+ r = __rand(&td->rwmix_state);
+ 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;
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;
assert(ddir_rw(ddir));
io_u_quiesce(td);
- fio_gettime(&t, NULL);
- usec_sleep(td, usec);
- usec = utime_since_now(&t);
+ usec = usec_sleep(td, usec);
td->rate_pending_usleep[ddir] -= usec;
if (td_rw(td) && __should_check_rate(td, odir))
td->rate_pending_usleep[odir] -= usec;
- if (ddir_trim(ddir))
- return ddir;
-
return ddir;
}
* 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;
}
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 = __rand(&td->next_file_state);
+ fno = (unsigned int) ((double) td->o.nr_files
* (r / (FRAND_MAX + 1.0)));
- }
f = td->files[fno];
if (fio_file_done(f))
* 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)
+int queue_full(const struct thread_data *td)
{
const int qempty = io_u_qempty(&td->io_u_freelist);
{
struct io_u *io_u = NULL;
+ if (td->stop_io)
+ return NULL;
+
td_io_u_lock(td);
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) {
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->xfer_buflen);
+ }
+ if ((td->flags & TD_F_SCRAMBLE_BUFFERS) &&
!(td->flags & TD_F_COMPRESS))
do_scramble = 1;
if (td->flags & TD_F_VER_NONE) {
if (!(io_u->flags & IO_U_F_VER_LIST))
td->this_io_bytes[ddir] += bytes;
- if (ddir == DDIR_WRITE && 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;
+ if (ddir == DDIR_WRITE) {
+ 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;
+ }
+ if (td->last_write_comp) {
+ int idx = td->last_write_idx++;
+
+ td->last_write_comp[idx] = io_u->offset;
+ if (td->last_write_idx == td->o.iodepth)
+ td->last_write_idx = 0;
+ }
}
if (ramp_time_over(td) && (td->runstate == TD_RUNNING ||
if (!td->o.dedupe_percentage)
return &td->buf_state;
+ else if (td->o.dedupe_percentage == 100)
+ return &td->buf_state_prev;
r = __rand(&td->dedupe_state);
v = 1 + (int) (100.0 * (r / (FRAND_MAX + 1.0)));
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;
- rs = get_buf_state(td);
+ do {
+ rs = get_buf_state(td);
- if (perc) {
- unsigned int seg = min_write;
+ min_write = min(min_write, left);
- seg = min(min_write, td->o.compress_chunk);
- if (!seg)
- seg = min_write;
+ if (perc) {
+ unsigned int seg = min_write;
- fill_random_buf_percentage(rs, buf, perc, seg,max_bs);
- save_buf_state(td, rs);
- } else {
- fill_random_buf(rs, buf, max_bs);
+ seg = min(min_write, td->o.compress_chunk);
+ if (!seg)
+ seg = min_write;
+
+ fill_random_buf_percentage(rs, buf, perc, seg,
+ min_write, o->buffer_pattern,
+ o->buffer_pattern_bytes);
+ } else
+ fill_random_buf(rs, buf, min_write);
+
+ buf += min_write;
+ left -= min_write;
save_buf_state(td, rs);
- }
- } else
+ } 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