if (o->iodepth_batch_complete_min > o->iodepth_batch_complete_max)
o->iodepth_batch_complete_max = o->iodepth_batch_complete_min;
+ /*
+ * There's no need to check for in-flight overlapping IOs if the job
+ * isn't changing data or the maximum iodepth is guaranteed to be 1
+ */
+ if (o->serialize_overlap && !(td->flags & TD_F_READ_IOLOG) &&
+ (!(td_write(td) || td_trim(td)) || o->iodepth == 1))
+ o->serialize_overlap = 0;
+ /*
+ * Currently can't check for overlaps in offload mode
+ */
+ if (o->serialize_overlap && o->io_submit_mode == IO_MODE_OFFLOAD) {
+ log_err("fio: checking for in-flight overlaps when the "
+ "io_submit_mode is offload is not supported\n");
+ o->serialize_overlap = 0;
+ ret = warnings_fatal;
+ }
+
if (o->nr_files > td->files_index)
o->nr_files = td->files_index;
o->size = -1ULL;
if (o->verify != VERIFY_NONE) {
- if (td_write(td) && o->do_verify && o->numjobs > 1) {
- log_info("Multiple writers may overwrite blocks that "
- "belong to other jobs. This can cause "
+ if (td_write(td) && o->do_verify && o->numjobs > 1 &&
+ (o->filename ||
+ !(o->unique_filename &&
+ strstr(o->filename_format, "$jobname") &&
+ strstr(o->filename_format, "$jobnum") &&
+ strstr(o->filename_format, "$filenum")))) {
+ log_info("fio: multiple writers may overwrite blocks "
+ "that belong to other jobs. This can cause "
"verification failures.\n");
ret = warnings_fatal;
}
+ /*
+ * Warn if verification is requested but no verification of any
+ * kind can be started due to time constraints
+ */
+ if (td_write(td) && o->do_verify && o->timeout &&
+ o->time_based && !td_read(td) && !o->verify_backlog) {
+ log_info("fio: verification read phase will never "
+ "start because write phase uses all of "
+ "runtime\n");
+ ret = warnings_fatal;
+ }
+
if (!fio_option_is_set(o, refill_buffers))
o->refill_buffers = 1;
o->unit_base = 8;
}
+#ifndef FIO_HAVE_ANY_FALLOCATE
+ /* Platform doesn't support any fallocate so force it to none */
+ o->fallocate_mode = FIO_FALLOCATE_NONE;
+#endif
+
#ifndef CONFIG_FDATASYNC
if (o->fdatasync_blocks) {
log_info("fio: this platform does not support fdatasync()"
return ret;
}
-/* External engines are specified by "external:name.o") */
-static const char *get_engine_name(const char *str)
-{
- char *p = strstr(str, ":");
-
- if (!p)
- return str;
-
- p++;
- strip_blank_front(&p);
- strip_blank_end(p);
- return p;
-}
-
static void init_rand_file_service(struct thread_data *td)
{
unsigned long nranges = td->o.nr_files << FIO_FSERVICE_SHIFT;
{
int i;
- init_rand_seed(&td->bsrange_state, td->rand_seeds[FIO_RAND_BS_OFF], use64);
+ /*
+ * trimwrite is special in that we need to generate the same
+ * offsets to get the "write after trim" effect. If we are
+ * using bssplit to set buffer length distributions, ensure that
+ * we seed the trim and write generators identically.
+ */
+ if (td_trimwrite(td)) {
+ init_rand_seed(&td->bsrange_state[DDIR_READ], td->rand_seeds[FIO_RAND_BS_OFF], use64);
+ init_rand_seed(&td->bsrange_state[DDIR_WRITE], td->rand_seeds[FIO_RAND_BS1_OFF], use64);
+ init_rand_seed(&td->bsrange_state[DDIR_TRIM], td->rand_seeds[FIO_RAND_BS1_OFF], use64);
+ } else {
+ init_rand_seed(&td->bsrange_state[DDIR_READ], td->rand_seeds[FIO_RAND_BS_OFF], use64);
+ init_rand_seed(&td->bsrange_state[DDIR_WRITE], td->rand_seeds[FIO_RAND_BS1_OFF], use64);
+ init_rand_seed(&td->bsrange_state[DDIR_TRIM], td->rand_seeds[FIO_RAND_BS2_OFF], use64);
+ }
+
td_fill_verify_state_seed(td);
init_rand_seed(&td->rwmix_state, td->rand_seeds[FIO_RAND_MIX_OFF], false);
{
const char *engine;
- /*
- * Engine has already been loaded.
- */
- if (td->io_ops)
- return 0;
if (!td->o.ioengine) {
log_err("fio: internal fault, no IO engine specified\n");
return 1;
}
- engine = get_engine_name(td->o.ioengine);
+ if (td->io_ops) {
+ /* An engine is loaded, but the requested ioengine
+ * may have changed.
+ */
+ if (!strcmp(td->io_ops->name, td->o.ioengine)) {
+ /* The right engine is already loaded */
+ return 0;
+ }
+
+ /* Unload the old engine. */
+ free_ioengine(td);
+ }
+
+ /*
+ * Use ->ioengine_so_path if an external ioengine is specified.
+ */
+ engine = td->o.ioengine_so_path ?: td->o.ioengine;
td->io_ops = load_ioengine(td, engine);
if (!td->io_ops) {
log_err("fio: failed to load engine %s\n", engine);
td->ts.slat_stat[i].min_val = ULONG_MAX;
td->ts.lat_stat[i].min_val = ULONG_MAX;
td->ts.bw_stat[i].min_val = ULONG_MAX;
+ td->ts.iops_stat[i].min_val = ULONG_MAX;
}
td->ddir_seq_nr = o->ddir_seq_nr;
printf(" --version\t\tPrint version info and exit\n");
printf(" --help\t\tPrint this page\n");
printf(" --cpuclock-test\tPerform test/validation of CPU clock\n");
- printf(" --crctest=type\tTest speed of checksum functions\n");
+ printf(" --crctest=[type]\tTest speed of checksum functions\n");
printf(" --cmdhelp=cmd\t\tPrint command help, \"all\" for all of"
" them\n");
printf(" --enghelp=engine\tPrint ioengine help, or list"
break;
case 'V':
terse_version = atoi(optarg);
- if (!(terse_version == 2 || terse_version == 3 ||
- terse_version == 4)) {
+ if (!(terse_version >= 2 && terse_version <= 5)) {
log_err("fio: bad terse version format\n");
exit_val = 1;
do_exit++;
}
if (!ret && !strcmp(opt, "ioengine")) {
- free_ioengine(td);
if (ioengine_load(td)) {
put_job(td);
td = NULL;
projects / fio.git / blobdiff