Commit-ID: 642146b1ad9bf73b5d1384610d1314d833a560dc
Gitweb: https://git.kernel.org/tip/642146b1ad9bf73b5d1384610d1314d833a560dc
Author: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
AuthorDate: Fri, 12 Jan 2018 14:19:05 -0800
Committer: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
CommitDate: Tue, 20 Feb 2018 16:21:59 -0800
torture: Specify qemu memory size with --memory argument
The 512 megabyte memory size has served quite well, but more memory
is required when using large trace buffers on large systems. This
commit therefore adds a --memory argument to the kvm.sh script, which
allows the memory size to be specified on the command line, for example,
"--memory 768", --memory 800M", or "--memory 2G".
Reported-by: Sebastian Siewior <bigeasy@xxxxxxxxxxxxx>
Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
---
tools/testing/selftests/rcutorture/bin/kvm-test-1-run.sh | 4 ++--
tools/testing/selftests/rcutorture/bin/kvm.sh | 8 ++++++++
2 files changed, 10 insertions(+), 2 deletions(-)
diff --git a/tools/testing/selftests/rcutorture/bin/kvm-test-1-run.sh b/tools/testing/selftests/rcutorture/bin/kvm-test-1-run.sh
index 1b78a12740e5..5f8fbb0d7c17 100755
--- a/tools/testing/selftests/rcutorture/bin/kvm-test-1-run.sh
+++ b/tools/testing/selftests/rcutorture/bin/kvm-test-1-run.sh
@@ -177,8 +177,8 @@ then
exit 0
fi
echo "NOTE: $QEMU either did not run or was interactive" > $resdir/console.log
-echo $QEMU $qemu_args -m 512 -kernel $KERNEL -append \"$qemu_append $boot_args\" > $resdir/qemu-cmd
-( $QEMU $qemu_args -m 512 -kernel $KERNEL -append "$qemu_append $boot_args"& echo $! > $resdir/qemu_pid; wait `cat $resdir/qemu_pid`; echo $? > $resdir/qemu-retval ) &
+echo $QEMU $qemu_args -m $TORTURE_QEMU_MEM -kernel $KERNEL -append \"$qemu_append $boot_args\" > $resdir/qemu-cmd
+( $QEMU $qemu_args -m $TORTURE_QEMU_MEM -kernel $KERNEL -append "$qemu_append $boot_args"& echo $! > $resdir/qemu_pid; wait `cat $resdir/qemu_pid`; echo $? > $resdir/qemu-retval ) &
commandcompleted=0
sleep 10 # Give qemu's pid a chance to reach the file
if test -s "$resdir/qemu_pid"
diff --git a/tools/testing/selftests/rcutorture/bin/kvm.sh b/tools/testing/selftests/rcutorture/bin/kvm.sh
index 1fa05132774d..f3c3d33150a0 100755
--- a/tools/testing/selftests/rcutorture/bin/kvm.sh
+++ b/tools/testing/selftests/rcutorture/bin/kvm.sh
@@ -42,6 +42,7 @@ TORTURE_BOOT_IMAGE=""
TORTURE_INITRD="$KVM/initrd"; export TORTURE_INITRD
TORTURE_KCONFIG_ARG=""
TORTURE_KMAKE_ARG=""
+TORTURE_QEMU_MEM=512
TORTURE_SHUTDOWN_GRACE=180
TORTURE_SUITE=rcu
resdir=""
@@ -68,6 +69,7 @@ usage () {
echo " --kconfig Kconfig-options"
echo " --kmake-arg kernel-make-arguments"
echo " --mac nn:nn:nn:nn:nn:nn"
+ echo " --memory megabytes | nnnG"
echo " --no-initrd"
echo " --qemu-args qemu-arguments"
echo " --qemu-cmd qemu-system-..."
@@ -145,6 +147,11 @@ do
TORTURE_QEMU_MAC=$2
shift
;;
+ --memory)
+ checkarg --memory "(memory size)" $# "$2" '^[0-9]\+[MG]\?$' error
+ TORTURE_QEMU_MEM=$2
+ shift
+ ;;
--no-initrd)
TORTURE_INITRD=""; export TORTURE_INITRD
;;
@@ -286,6 +293,7 @@ TORTURE_KMAKE_ARG="$TORTURE_KMAKE_ARG"; export TORTURE_KMAKE_ARG
TORTURE_QEMU_CMD="$TORTURE_QEMU_CMD"; export TORTURE_QEMU_CMD
TORTURE_QEMU_INTERACTIVE="$TORTURE_QEMU_INTERACTIVE"; export TORTURE_QEMU_INTERACTIVE
TORTURE_QEMU_MAC="$TORTURE_QEMU_MAC"; export TORTURE_QEMU_MAC
+TORTURE_QEMU_MEM="$TORTURE_QEMU_MEM"; export TORTURE_QEMU_MEM
TORTURE_SHUTDOWN_GRACE="$TORTURE_SHUTDOWN_GRACE"; export TORTURE_SHUTDOWN_GRACE
TORTURE_SUITE="$TORTURE_SUITE"; export TORTURE_SUITE
if ! test -e $resdir
--
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