From: paulmck@kernel.org
To: rcu@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, kernel-team@fb.com,
mingo@kernel.org, jiangshanlai@gmail.com,
akpm@linux-foundation.org, mathieu.desnoyers@efficios.com,
josh@joshtriplett.org, tglx@linutronix.de, peterz@infradead.org,
rostedt@goodmis.org, dhowells@redhat.com, edumazet@google.com,
fweisbec@gmail.com, oleg@redhat.com, joel@joelfernandes.org,
"Paul E. McKenney" <paulmck@kernel.org>
Subject: [PATCH tip/core/rcu 06/18] torture: Auto-size SCF and scaling runs based on number of CPUs
Date: Wed, 6 Jan 2021 09:31:07 -0800 [thread overview]
Message-ID: <20210106173119.23159-6-paulmck@kernel.org> (raw)
In-Reply-To: <20210106173056.GA23035@paulmck-ThinkPad-P72>
From: "Paul E. McKenney" <paulmck@kernel.org>
This commit improves torture.sh flexibility by autoscaling the number
of CPUs to be used in variable-CPUs torture tests, including scftorture,
refscale, rcuscale, and kvfree.
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
---
tools/testing/selftests/rcutorture/bin/torture.sh | 19 ++++++++++++-------
1 file changed, 12 insertions(+), 7 deletions(-)
diff --git a/tools/testing/selftests/rcutorture/bin/torture.sh b/tools/testing/selftests/rcutorture/bin/torture.sh
index 57f2f31..e13dacf 100755
--- a/tools/testing/selftests/rcutorture/bin/torture.sh
+++ b/tools/testing/selftests/rcutorture/bin/torture.sh
@@ -19,6 +19,11 @@ PATH=${KVM}/bin:$PATH; export PATH
TORTURE_ALLOTED_CPUS="`identify_qemu_vcpus`"
MAKE_ALLOTED_CPUS=$((TORTURE_ALLOTED_CPUS*2))
+HALF_ALLOTED_CPUS=$((TORTURE_ALLOTED_CPUS/2))
+if test "$HALF_ALLOTED_CPUS" -lt 1
+then
+ HALF_ALLOTED_CPUS=1
+fi
# Default duration and apportionment.
duration_base=10
@@ -291,8 +296,8 @@ fi
if test "$do_scftorture" = "yes"
then
- torture_bootargs="scftorture.nthreads=224 torture.disable_onoff_at_boot"
- torture_set "scftorture" tools/testing/selftests/rcutorture/bin/kvm.sh --torture scf --allcpus --duration "$duration_scftorture" --kconfig "CONFIG_NR_CPUS=224" --trust-make
+ torture_bootargs="scftorture.nthreads=$HALF_ALLOTED_CPUS torture.disable_onoff_at_boot"
+ torture_set "scftorture" tools/testing/selftests/rcutorture/bin/kvm.sh --torture scf --allcpus --duration "$duration_scftorture" --kconfig "CONFIG_NR_CPUS=$HALF_ALLOTED_CPUS" --trust-make
fi
if test "$do_refscale" = yes
@@ -303,8 +308,8 @@ else
fi
for prim in $primlist
do
- torture_bootargs="refscale.scale_type="$prim" refscale.nreaders=224 refscale.loops=10000 refscale.holdoff=20 torture.disable_onoff_at_boot"
- torture_set "refscale-$prim" tools/testing/selftests/rcutorture/bin/kvm.sh --torture refscale --allcpus --duration 5 --kconfig "CONFIG_NR_CPUS=224" --trust-make
+ torture_bootargs="refscale.scale_type="$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=$HALF_ALLOTED_CPUS" --trust-make
done
if test "$do_rcuscale" = yes
@@ -315,14 +320,14 @@ else
fi
for prim in $primlist
do
- torture_bootargs="rcuscale.scale_type="$prim" rcuscale.nwriters=224 rcuscale.holdoff=20 torture.disable_onoff_at_boot"
- torture_set "rcuscale-$prim" tools/testing/selftests/rcutorture/bin/kvm.sh --torture rcuscale --allcpus --duration 5 --kconfig "CONFIG_NR_CPUS=224" --trust-make
+ torture_bootargs="rcuscale.scale_type="$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_NR_CPUS=$HALF_ALLOTED_CPUS" --trust-make
done
if test "$do_kvfree" = "yes"
then
torture_bootargs="rcuscale.kfree_rcu_test=1 rcuscale.kfree_nthreads=16 rcuscale.holdoff=20 rcuscale.kfree_loops=10000 torture.disable_onoff_at_boot"
- torture_set "rcuscale-kvfree" tools/testing/selftests/rcutorture/bin/kvm.sh --torture rcuscale --allcpus --duration 10 --kconfig "CONFIG_NR_CPUS=224" --trust-make
+ torture_set "rcuscale-kvfree" tools/testing/selftests/rcutorture/bin/kvm.sh --torture rcuscale --allcpus --duration 10 --kconfig "CONFIG_NR_CPUS=$HALF_ALLOTED_CPUS" --trust-make
fi
echo " --- " $scriptname $args
--
2.9.5
next prev parent reply other threads:[~2021-01-06 17:32 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-06 17:30 [PATCH tip/core/rcu 0/18] Add a torture-all acceptance-test script for v5.12 Paul E. McKenney
2021-01-06 17:31 ` [PATCH tip/core/rcu 01/18] torture: Do Kconfig analysis only once per scenario paulmck
2021-01-06 17:31 ` [PATCH tip/core/rcu 02/18] torture: Add torture.sh torture-everything script paulmck
2021-01-06 17:31 ` [PATCH tip/core/rcu 03/18] torture: Make torture.sh use common time-duration bash functions paulmck
2021-01-06 17:31 ` [PATCH tip/core/rcu 04/18] torture: Remove use of "eval" in torture.sh paulmck
2021-01-06 17:31 ` [PATCH tip/core/rcu 05/18] torture: Add "make allmodconfig" to torture.sh paulmck
2021-01-06 17:31 ` paulmck [this message]
2021-01-06 17:31 ` [PATCH tip/core/rcu 07/18] torture: Enable torture.sh argument checking paulmck
2021-01-06 17:31 ` [PATCH tip/core/rcu 08/18] torture: Make torture.sh rcuscale and refscale deal with allmodconfig paulmck
2021-01-06 17:31 ` [PATCH tip/core/rcu 09/18] torture: Make torture.sh refscale runs use verbose_batched module parameter paulmck
2021-01-06 17:31 ` [PATCH tip/core/rcu 10/18] torture: Create doyesno helper function for torture.sh paulmck
2021-01-06 17:31 ` [PATCH tip/core/rcu 11/18] torture: Make torture.sh allmodconfig retain and label output paulmck
2021-01-06 17:31 ` [PATCH tip/core/rcu 12/18] torture: Make torture.sh throttle VERBOSE_TOROUT_*() for refscale paulmck
2021-01-06 17:31 ` [PATCH tip/core/rcu 13/18] torture: Make torture.sh refuse to do zero-length runs paulmck
2021-01-06 17:31 ` [PATCH tip/core/rcu 14/18] torture: Drop log.long generation from torture.sh paulmck
2021-01-06 17:31 ` [PATCH tip/core/rcu 15/18] torture: Allow scenarios to be specified to torture.sh paulmck
2021-01-06 17:31 ` [PATCH tip/core/rcu 16/18] torture: Add command and results directory to torture.sh log paulmck
2021-01-06 17:31 ` [PATCH tip/core/rcu 17/18] torture: Add --kcsan-kmake-arg to torture.sh for KCSAN paulmck
2021-01-06 17:31 ` [PATCH tip/core/rcu 18/18] torture: Compress KASAN vmlinux files paulmck
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