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From: "Paul E. McKenney" <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 rcu 15/21] rcutorture: Upgrade two-CPU scenarios to four CPUs
Date: Wed, 21 Jul 2021 14:01:34 -0700	[thread overview]
Message-ID: <20210721210140.787717-15-paulmck@kernel.org> (raw)
In-Reply-To: <20210721205511.GA786917@paulmck-ThinkPad-P17-Gen-1>

There is no way to place the vCPUs in a two-CPU rcutorture scenario to
get variable memory latency.  This commit therefore upgrades the current
two-CPU rcutorture scenarios to four CPUs.

Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
---
 tools/testing/selftests/rcutorture/configs/rcu/RUDE01  | 2 +-
 tools/testing/selftests/rcutorture/configs/rcu/TASKS01 | 2 +-
 tools/testing/selftests/rcutorture/configs/rcu/TASKS03 | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/tools/testing/selftests/rcutorture/configs/rcu/RUDE01 b/tools/testing/selftests/rcutorture/configs/rcu/RUDE01
index bafe94cbd7390..3ca112444ce77 100644
--- a/tools/testing/selftests/rcutorture/configs/rcu/RUDE01
+++ b/tools/testing/selftests/rcutorture/configs/rcu/RUDE01
@@ -1,5 +1,5 @@
 CONFIG_SMP=y
-CONFIG_NR_CPUS=2
+CONFIG_NR_CPUS=4
 CONFIG_HOTPLUG_CPU=y
 CONFIG_PREEMPT_NONE=n
 CONFIG_PREEMPT_VOLUNTARY=n
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TASKS01 b/tools/testing/selftests/rcutorture/configs/rcu/TASKS01
index bafe94cbd7390..3ca112444ce77 100644
--- a/tools/testing/selftests/rcutorture/configs/rcu/TASKS01
+++ b/tools/testing/selftests/rcutorture/configs/rcu/TASKS01
@@ -1,5 +1,5 @@
 CONFIG_SMP=y
-CONFIG_NR_CPUS=2
+CONFIG_NR_CPUS=4
 CONFIG_HOTPLUG_CPU=y
 CONFIG_PREEMPT_NONE=n
 CONFIG_PREEMPT_VOLUNTARY=n
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TASKS03 b/tools/testing/selftests/rcutorture/configs/rcu/TASKS03
index ea4399020c6c1..dc02083803ce5 100644
--- a/tools/testing/selftests/rcutorture/configs/rcu/TASKS03
+++ b/tools/testing/selftests/rcutorture/configs/rcu/TASKS03
@@ -1,5 +1,5 @@
 CONFIG_SMP=y
-CONFIG_NR_CPUS=2
+CONFIG_NR_CPUS=4
 CONFIG_PREEMPT_NONE=n
 CONFIG_PREEMPT_VOLUNTARY=n
 CONFIG_PREEMPT=y
-- 
2.31.1.189.g2e36527f23


  parent reply	other threads:[~2021-07-21 21:02 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-21 20:55 [PATCH rcu 0/21] Torture-test scripting updates for v5.15 Paul E. McKenney
2021-07-21 21:01 ` [PATCH rcu 01/21] torture: Add clocksource-watchdog testing to torture.sh Paul E. McKenney
2021-07-21 21:01 ` [PATCH rcu 02/21] torture: Make torture.sh accept --do-all and --donone Paul E. McKenney
2021-07-21 21:01 ` [PATCH rcu 03/21] torture: Enable KCSAN summaries over groups of torture-test runs Paul E. McKenney
2021-07-21 21:01 ` [PATCH rcu 04/21] torture: Create KCSAN summaries for torture.sh runs Paul E. McKenney
2021-07-21 21:01 ` [PATCH rcu 05/21] torture: Make kvm-recheck-scf.sh tolerate qemu-cmd comments Paul E. McKenney
2021-07-21 21:01 ` [PATCH rcu 06/21] torture: Make kvm-recheck-lock.sh " Paul E. McKenney
2021-07-21 21:01 ` [PATCH rcu 07/21] torture: Log more kvm-remote.sh information Paul E. McKenney
2021-07-21 21:01 ` [PATCH rcu 08/21] torture: Protect kvm-remote.sh directory trees from /tmp reaping Paul E. McKenney
2021-07-21 21:01 ` [PATCH rcu 09/21] torture: Make kvm-recheck.sh skip kcsan.sum for build-only runs Paul E. McKenney
2021-07-21 21:01 ` [PATCH rcu 10/21] torture: Move parse-console.sh call to PATH-aware scripts Paul E. McKenney
2021-07-21 21:01 ` [PATCH rcu 11/21] torture: Put kvm.sh batch-creation awk script into a temp file Paul E. McKenney
2021-07-21 21:01 ` [PATCH rcu 12/21] torture: Make kvm.sh select per-scenario affinity masks Paul E. McKenney
2021-07-21 21:01 ` [PATCH rcu 13/21] torture: Don't redirect qemu-cmd comment lines Paul E. McKenney
2021-07-21 21:01 ` [PATCH rcu 14/21] torture: Make kvm-test-1-run-qemu.sh apply affinity Paul E. McKenney
2021-07-21 21:01 ` Paul E. McKenney [this message]
2021-07-21 21:01 ` [PATCH rcu 16/21] torture: Use numeric taskset argument in jitter.sh Paul E. McKenney
2021-07-21 21:01 ` [PATCH rcu 17/21] torture: Consistently name "qemu*" test output files Paul E. McKenney
2021-07-21 21:01 ` [PATCH rcu 18/21] torture: Make kvm-test-1-run-batch.sh select per-scenario affinity masks Paul E. McKenney
2021-07-21 21:01 ` [PATCH rcu 19/21] torture: Don't use "test" command's "-a" argument Paul E. McKenney
2021-07-21 21:01 ` [PATCH rcu 20/21] torture: Add timestamps to kvm-test-1-run-qemu.sh output Paul E. McKenney
2021-07-21 21:01 ` [PATCH rcu 21/21] torture: Make kvm-test-1-run-qemu.sh check for reboot loops Paul E. McKenney

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