The following commit has been merged into the core/rcu branch of tip: Commit-ID: 264da4832b3af4a1a4cc83df1c5fe2d43429faa6 Gitweb: https://git.kernel.org/tip/264da4832b3af4a1a4cc83df1c5fe2d43429faa6 Author: Paul E. McKenney <paulmck@xxxxxxxxxx> AuthorDate: Tue, 24 Nov 2020 19:13:52 -08:00 Committer: Paul E. McKenney <paulmck@xxxxxxxxxx> CommitterDate: Wed, 06 Jan 2021 17:03:42 -08:00 torture: Make torture.sh refscale runs use verbose_batched module parameter On large systems, the refscale printk() rate can overrun the file system's ability to accept console log messages. This commit therefore uses the new verbose_batched module parameter to rate-limit some of the higher-rate printk() calls. Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxx> --- tools/testing/selftests/rcutorture/bin/torture.sh | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/tools/testing/selftests/rcutorture/bin/torture.sh b/tools/testing/selftests/rcutorture/bin/torture.sh index a89b521..a3c3c25 100755 --- a/tools/testing/selftests/rcutorture/bin/torture.sh +++ b/tools/testing/selftests/rcutorture/bin/torture.sh @@ -24,6 +24,11 @@ if test "$HALF_ALLOTED_CPUS" -lt 1 then HALF_ALLOTED_CPUS=1 fi +VERBOSE_BATCH_CPUS=$((TORTURE_ALLOTED_CPUS/16)) +if test "$VERBOSE_BATCH_CPUS" -lt 2 +then + VERBOSE_BATCH_CPUS=0 +fi # Default duration and apportionment. duration_base=10 @@ -309,7 +314,7 @@ fi for prim in $primlist do torture_bootargs="refscale.scale_type="$prim" refscale.nreaders=$HALF_ALLOTED_CPUS refscale.loops=10000 refscale.holdoff=20 torture.disable_onoff_at_boot" - torture_set "refscale-$prim" tools/testing/selftests/rcutorture/bin/kvm.sh --torture refscale --allcpus --duration 5 --kconfig "CONFIG_NR_CPUS=$HALF_ALLOTED_CPUS" --trust-make + torture_set "refscale-$prim" tools/testing/selftests/rcutorture/bin/kvm.sh --torture refscale --allcpus --duration 5 --kconfig "CONFIG_NR_CPUS=$HALF_ALLOTED_CPUS" --bootargs "verbose_batched=$VERBOSE_BATCH_CPUS" --trust-make done if test "$do_rcuscale" = yes
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