X-Git-Url: https://git.kernel.dk/?a=blobdiff_plain;f=init.c;h=871fb5ad1ff7e9daa902d40217fb75f000dbd736;hb=2459bd33b3dbb7a34f28c612d595311a6bc7593d;hp=60c7cff405d70d8e974545026e2fe659b512b7ed;hpb=b54e0d80c52e626021aacd0ae4d9875940cff9aa;p=fio.git

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
 	 */