.has_arg = required_argument,
.val = 'C',
},
+ {
+ .name = (char *) "cpuclock-test",
+ .has_arg = no_argument,
+ .val = 'T',
+ },
{
.name = NULL,
},
/*
* The low water mark cannot be bigger than the iodepth
*/
- if (o->iodepth_low > o->iodepth || !o->iodepth_low) {
- /*
- * syslet work around - if the workload is sequential,
- * we want to let the queue drain all the way down to
- * avoid seeking between async threads
- */
- if (!strcmp(td->io_ops->name, "syslet-rw") && !td_random(td))
- o->iodepth_low = 1;
- else
- o->iodepth_low = o->iodepth;
- }
+ if (o->iodepth_low > o->iodepth || !o->iodepth_low)
+ o->iodepth_low = o->iodepth;
/*
* If batch number isn't set, default to the same as iodepth
}
}
-#ifndef FIO_HAVE_FDATASYNC
+#ifndef CONFIG_FDATASYNC
if (o->fdatasync_blocks) {
log_info("fio: this platform does not support fdatasync()"
" falling back to using fsync(). Use the 'fsync'"
init_rand_seed(&td->buf_state, td->rand_seeds[FIO_RAND_BUF_OFF]);
}
-
/*
* Initializes the ioengine configured for a job, if it has not been done so
* already.
td->flags |= TD_F_VER_NONE;
}
+static int setup_random_seeds(struct thread_data *td)
+{
+ unsigned long seed;
+ unsigned int i;
+
+ if (!td->o.rand_repeatable)
+ return init_random_state(td, td->rand_seeds, sizeof(td->rand_seeds));
+
+ for (seed = 0x89, i = 0; i < 4; i++)
+ seed *= 0x9e370001UL;
+
+ for (i = 0; i < FIO_RAND_NR_OFFS; i++) {
+ td->rand_seeds[i] = seed;
+ seed *= 0x9e370001UL;
+ }
+
+ td_fill_rand_seeds(td);
+ return 0;
+}
+
/*
* Adds a job to the list of things todo. Sanitizes the various options
* to make sure we don't have conflicts, and initializes various
td->groupid = groupid;
prev_group_jobs++;
- if (init_random_state(td, td->rand_seeds, sizeof(td->rand_seeds))) {
+ if (setup_random_seeds(td)) {
td_verror(td, errno, "init_random_state");
goto err;
}
printf(" --terse-version=x\tSet terse version output format to 'x'\n");
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(" --cmdhelp=cmd\t\tPrint command help, \"all\" for all of"
" them\n");
printf(" --enghelp=engine\tPrint ioengine help, or list"
printf(" --daemonize=pidfile\tBackground fio server, write pid to file\n");
printf(" --client=hostname\tTalk to remote backend fio server at hostname\n");
printf("\nFio was written by Jens Axboe <jens.axboe@oracle.com>");
- printf("\n Jens Axboe <jaxboe@fusionio.com>\n");
+ printf("\n Jens Axboe <jaxboe@fusionio.com>\n");
}
#ifdef FIO_INC_DEBUG
optind++;
}
break;
+ case 'T':
+ do_exit++;
+ exit_val = fio_monotonic_clocktest();
+ break;
default:
do_exit++;
exit_val = 1;