Messages in this thread Patch in this message | | | From | paulmck@kernel ... | Subject | [PATCH tip/core/rcu 12/20] torture: Make kvm.sh include --kconfig arguments in CPU calculation | Date | Wed, 6 Jan 2021 09:25:59 -0800 |
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From: "Paul E. McKenney" <paulmck@kernel.org>
Currently, passing something like "--kconfig CONFIG_NR_CPUS=2" to kvm.sh has no effect on scenario scheduling. For scenarios that do not specify the number of CPUs, this can result in kvm.sh wastefully scheduling only one scenario at a time even when the --kconfig argument would allow a number to be run concurrently. This commit therefore makes kvm.sh consider the --kconfig arguments when scheduling scenarios across the available CPUs.
Signed-off-by: Paul E. McKenney <paulmck@kernel.org> --- tools/testing/selftests/rcutorture/bin/kvm.sh | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/tools/testing/selftests/rcutorture/bin/kvm.sh b/tools/testing/selftests/rcutorture/bin/kvm.sh index 6f21268..472929c 100755 --- a/tools/testing/selftests/rcutorture/bin/kvm.sh +++ b/tools/testing/selftests/rcutorture/bin/kvm.sh @@ -290,7 +290,13 @@ for CF1 in $configs_derep do if test -f "$CONFIGFRAG/$CF1" then - cpu_count=`configNR_CPUS.sh $CONFIGFRAG/$CF1` + if echo "$TORTURE_KCONFIG_ARG" | grep -q '\<CONFIG_NR_CPUS=' + then + echo "$TORTURE_KCONFIG_ARG" | tr -s ' ' | tr ' ' '\012' > $T/KCONFIG_ARG + cpu_count=`configNR_CPUS.sh $T/KCONFIG_ARG` + else + cpu_count=`configNR_CPUS.sh $CONFIGFRAG/$CF1` + fi cpu_count=`configfrag_boot_cpus "$TORTURE_BOOTARGS" "$CONFIGFRAG/$CF1" "$cpu_count"` cpu_count=`configfrag_boot_maxcpus "$TORTURE_BOOTARGS" "$CONFIGFRAG/$CF1" "$cpu_count"` echo $CF1 $cpu_count >> $T/cfgcpu -- 2.9.5
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