[PATCH blktests v3 09/12] common/fio: Limit number of random jobs

Daniel Wagner
2023-05-03T08:04:08Z

Limit the number of random threads to 32 for big machines. This still
gives enough randomness but limits the resource usage.

Signed-off-by: Daniel Wagner <dwagner@suse.de>
---
common/fio | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/common/fio b/common/fio
index 1db6128be632..06659d7d1d84 100644
--- a/common/fio
+++ b/common/fio
@@ -189,7 +189,8 @@ _run_fio() {
# Wrapper around _run_fio used if you need some I/O but don't really care much
# about the details
_run_fio_rand_io() {
- _run_fio --bs=4k --rw=randread --norandommap --numjobs="$(nproc)" \
+ _run_fio --bs=4k --rw=randread --norandommap \
+ --numjobs="$(OMP_THREAD_LIMIT=32 nproc)" \
--name=reads --direct=1 "$@"
}

--
2.40.0