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-rw-r--r--init.c26
1 files changed, 26 insertions, 0 deletions
diff --git a/init.c b/init.c
index 60c7cff4..871fb5ad 100644
--- a/init.c
+++ b/init.c
@@ -958,6 +958,28 @@ static int fixup_options(struct thread_data *td)
o->latency_target *= 1000ULL;
+ /*
+ * Dedupe working set verifications
+ */
+ if (o->dedupe_percentage && o->dedupe_mode == DEDUPE_MODE_WORKING_SET) {
+ if (!fio_option_is_set(o, size)) {
+ log_err("fio: pregenerated dedupe working set "
+ "requires size to be set\n");
+ ret |= 1;
+ } else if (o->nr_files != 1) {
+ log_err("fio: dedupe working set mode supported with "
+ "single file per job, but %d files "
+ "provided\n", o->nr_files);
+ ret |= 1;
+ } else if (o->dedupe_working_set_percentage + o->dedupe_percentage > 100) {
+ log_err("fio: impossible to reach expected dedupe percentage %u "
+ "since %u percentage of size is reserved to dedupe working set "
+ "(those are unique pages)\n",
+ o->dedupe_percentage, o->dedupe_working_set_percentage);
+ ret |= 1;
+ }
+ }
+
return ret;
}
@@ -1031,6 +1053,7 @@ static void td_fill_rand_seeds_internal(struct thread_data *td, bool use64)
init_rand_seed(&td->dedupe_state, td->rand_seeds[FIO_DEDUPE_OFF], false);
init_rand_seed(&td->zone_state, td->rand_seeds[FIO_RAND_ZONE_OFF], false);
init_rand_seed(&td->prio_state, td->rand_seeds[FIO_RAND_PRIO_CMDS], false);
+ init_rand_seed(&td->dedupe_working_set_index_state, td->rand_seeds[FIO_RAND_DEDUPE_WORKING_SET_IX], use64);
if (!td_random(td))
return;
@@ -1491,6 +1514,9 @@ static int add_job(struct thread_data *td, const char *jobname, int job_add_num,
if (fixup_options(td))
goto err;
+ if (init_dedupe_working_set_seeds(td))
+ goto err;
+
/*
* Belongs to fixup_options, but o->name is not necessarily set as yet
*/