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authorPaul E. McKenney <paulmck@kernel.org>2024-01-31 15:15:42 +0300
committerUladzislau Rezki (Sony) <urezki@gmail.com>2024-04-04 17:22:10 +0300
commitfe09d2e314e5501e4673018270e6e1ed92e6e446 (patch)
tree612e341bb69f4f2d340664c5a583bb8ee47c76d9 /tools/testing/selftests/rcutorture
parent39cd87c4eb2b893354f3b850f916353f2658ae6f (diff)
downloadlinux-fe09d2e314e5501e4673018270e6e1ed92e6e446.tar.xz
scftorture: Increase memory provided to guest OS
The tradition, extending back almost a full year, has been 2GB plus an additional number of GBs equal to the number of CPUs divided by sixteen. This tradition has served scftorture well, even the CONFIG_PREEMPT=y version running KASAN within guest OSes having 40 CPUs. However, this test recently started OOMing on larger systems, and this commit therefore gives this test an additional GB of memory. It is quite possible that further testing on larger systems will show a need to decrease the divisor from 16 to (say) 8, but that is a change to make once it has been demonstrated to be required. Signed-off-by: Paul E. McKenney <paulmck@kernel.org> Signed-off-by: Uladzislau Rezki (Sony) <urezki@gmail.com>
Diffstat (limited to 'tools/testing/selftests/rcutorture')
-rwxr-xr-xtools/testing/selftests/rcutorture/bin/torture.sh2
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/testing/selftests/rcutorture/bin/torture.sh b/tools/testing/selftests/rcutorture/bin/torture.sh
index bbac5f4b03d0..42f0aee09e51 100755
--- a/tools/testing/selftests/rcutorture/bin/torture.sh
+++ b/tools/testing/selftests/rcutorture/bin/torture.sh
@@ -425,7 +425,7 @@ fi
if test "$do_scftorture" = "yes"
then
# Scale memory based on the number of CPUs.
- scfmem=$((2+HALF_ALLOTED_CPUS/16))
+ scfmem=$((3+HALF_ALLOTED_CPUS/16))
torture_bootargs="scftorture.nthreads=$HALF_ALLOTED_CPUS torture.disable_onoff_at_boot csdlock_debug=1"
torture_set "scftorture" tools/testing/selftests/rcutorture/bin/kvm.sh --torture scf --allcpus --duration "$duration_scftorture" --configs "$configs_scftorture" --kconfig "CONFIG_NR_CPUS=$HALF_ALLOTED_CPUS" --memory ${scfmem}G --trust-make
fi