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Message-Id: <20221019230206.2501794-6-paulmck@kernel.org>
Date: Wed, 19 Oct 2022 16:02:04 -0700
From: "Paul E. McKenney" <paulmck@...nel.org>
To: rcu@...r.kernel.org
Cc: linux-kernel@...r.kernel.org, kernel-team@...com,
rostedt@...dmis.org, "Paul E. McKenney" <paulmck@...nel.org>
Subject: [PATCH v3 rcu 6/8] rcutorture: Avoid redundant builds for rcuscale and refscale in torture.sh
This commit causes torture.sh to use the new --bootargs and --datestamp
parameters to kvm-again.sh in order to avoid redundant kernel builds
during rcuscale and refscale testing. This trims the better part of an
hour off of torture.sh runs that use --do-kasan.
Signed-off-by: Paul E. McKenney <paulmck@...nel.org>
---
.../selftests/rcutorture/bin/torture.sh | 87 ++++++++++++++++++-
1 file changed, 83 insertions(+), 4 deletions(-)
diff --git a/tools/testing/selftests/rcutorture/bin/torture.sh b/tools/testing/selftests/rcutorture/bin/torture.sh
index 4d285db2fbbdd..b376688fe280a 100755
--- a/tools/testing/selftests/rcutorture/bin/torture.sh
+++ b/tools/testing/selftests/rcutorture/bin/torture.sh
@@ -277,6 +277,8 @@ function torture_one {
then
cat $T/$curflavor.out | tee -a $T/log
echo retcode=$retcode | tee -a $T/log
+ else
+ echo $resdir > $T/last-resdir
fi
if test "$retcode" == 0
then
@@ -302,10 +304,12 @@ function torture_set {
shift
curflavor=$flavor
torture_one "$@"
+ mv $T/last-resdir $T/last-resdir-nodebug || :
if test "$do_kasan" = "yes"
then
curflavor=${flavor}-kasan
torture_one "$@" --kasan
+ mv $T/last-resdir $T/last-resdir-kasan || :
fi
if test "$do_kcsan" = "yes"
then
@@ -316,6 +320,7 @@ function torture_set {
cur_kcsan_kmake_args="$kcsan_kmake_args"
fi
torture_one "$@" --kconfig "CONFIG_DEBUG_LOCK_ALLOC=y CONFIG_PROVE_LOCKING=y" $kcsan_kmake_tag $cur_kcsan_kmake_args --kcsan
+ mv $T/last-resdir $T/last-resdir-kcsan || :
fi
}
@@ -378,11 +383,48 @@ then
else
primlist=
fi
+firsttime=1
+do_kasan_save="$do_kasan"
+do_kcsan_save="$do_kcsan"
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_TASKS_TRACE_RCU=y CONFIG_NR_CPUS=$HALF_ALLOTED_CPUS" --bootargs "verbose_batched=$VERBOSE_BATCH_CPUS torture.verbose_sleep_frequency=8 torture.verbose_sleep_duration=$VERBOSE_BATCH_CPUS" --trust-make
+ if test -n "$firsttime"
+ then
+ 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-$prim" tools/testing/selftests/rcutorture/bin/kvm.sh --torture refscale --allcpus --duration 5 --kconfig "CONFIG_TASKS_TRACE_RCU=y CONFIG_NR_CPUS=$HALF_ALLOTED_CPUS" --bootargs "verbose_batched=$VERBOSE_BATCH_CPUS torture.verbose_sleep_frequency=8 torture.verbose_sleep_duration=$VERBOSE_BATCH_CPUS" --trust-make
+ mv $T/last-resdir-nodebug $T/first-resdir-nodebug || :
+ if test -f "$T/last-resdir-kasan"
+ then
+ mv $T/last-resdir-kasan $T/first-resdir-kasan || :
+ fi
+ if test -f "$T/last-resdir-kcsan"
+ then
+ mv $T/last-resdir-kcsan $T/first-resdir-kcsan || :
+ fi
+ firsttime=
+ do_kasan=
+ do_kcsan=
+ else
+ torture_bootargs=
+ for i in $T/first-resdir-*
+ do
+ case "$i" in
+ *-nodebug)
+ torture_suffix=
+ ;;
+ *-kasan)
+ torture_suffix="-kasan"
+ ;;
+ *-kcsan)
+ torture_suffix="-kcsan"
+ ;;
+ esac
+ torture_set "refscale-$prim$torture_suffix" tools/testing/selftests/rcutorture/bin/kvm-again.sh "`cat "$i"`" --duration 5 --bootargs "refscale.scale_type=$prim"
+ done
+ fi
done
+do_kasan="$do_kasan_save"
+do_kcsan="$do_kcsan_save"
if test "$do_rcuscale" = yes
then
@@ -390,11 +432,48 @@ then
else
primlist=
fi
+firsttime=1
+do_kasan_save="$do_kasan"
+do_kcsan_save="$do_kcsan"
for prim in $primlist
do
- torture_bootargs="rcuscale.scale_type="$prim" rcuscale.nwriters=$HALF_ALLOTED_CPUS rcuscale.holdoff=20 torture.disable_onoff_at_boot"
- torture_set "rcuscale-$prim" tools/testing/selftests/rcutorture/bin/kvm.sh --torture rcuscale --allcpus --duration 5 --kconfig "CONFIG_TASKS_TRACE_RCU=y CONFIG_NR_CPUS=$HALF_ALLOTED_CPUS" --trust-make
+ if test -n "$firsttime"
+ then
+ torture_bootargs="rcuscale.scale_type="$prim" rcuscale.nwriters=$HALF_ALLOTED_CPUS rcuscale.holdoff=20 torture.disable_onoff_at_boot"
+ torture_set "rcuscale-$prim" tools/testing/selftests/rcutorture/bin/kvm.sh --torture rcuscale --allcpus --duration 5 --kconfig "CONFIG_TASKS_TRACE_RCU=y CONFIG_NR_CPUS=$HALF_ALLOTED_CPUS" --trust-make
+ mv $T/last-resdir-nodebug $T/first-resdir-nodebug || :
+ if test -f "$T/last-resdir-kasan"
+ then
+ mv $T/last-resdir-kasan $T/first-resdir-kasan || :
+ fi
+ if test -f "$T/last-resdir-kcsan"
+ then
+ mv $T/last-resdir-kcsan $T/first-resdir-kcsan || :
+ fi
+ firsttime=
+ do_kasan=
+ do_kcsan=
+ else
+ torture_bootargs=
+ for i in $T/first-resdir-*
+ do
+ case "$i" in
+ *-nodebug)
+ torture_suffix=
+ ;;
+ *-kasan)
+ torture_suffix="-kasan"
+ ;;
+ *-kcsan)
+ torture_suffix="-kcsan"
+ ;;
+ esac
+ torture_set "rcuscale-$prim$torture_suffix" tools/testing/selftests/rcutorture/bin/kvm-again.sh "`cat "$i"`" --duration 5 --bootargs "rcuscale.scale_type=$prim"
+ done
+ fi
done
+do_kasan="$do_kasan_save"
+do_kcsan="$do_kcsan_save"
if test "$do_kvfree" = "yes"
then
--
2.31.1.189.g2e36527f23
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