From: "Uladzislau Rezki (Sony)" <urezki@gmail.com>
To: "Paul E . McKenney" <paulmck@kernel.org>,
Neeraj upadhyay <Neeraj.Upadhyay@amd.com>
Cc: Joel Fernandes <joel@joelfernandes.org>,
RCU <rcu@vger.kernel.org>, LKML <linux-kernel@vger.kernel.org>,
Frederic Weisbecker <frederic@kernel.org>,
Uladzislau Rezki <urezki@gmail.com>
Subject: [PATCH v2 2/2] Documentation/kernel-parameters: Update rcu_normal_wake_from_gp doc
Date: Wed, 11 Jun 2025 19:56:58 +0200 [thread overview]
Message-ID: <20250611175658.91361-2-urezki@gmail.com> (raw)
In-Reply-To: <20250611175658.91361-1-urezki@gmail.com>
Update the documentation about rcu_normal_wake_from_gp parameter.
Signed-off-by: Uladzislau Rezki (Sony) <urezki@gmail.com>
---
Documentation/admin-guide/kernel-parameters.txt | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index f1f2c0874da9..f7e4bee2b823 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -5485,7 +5485,8 @@
echo 1 > /sys/module/rcutree/parameters/rcu_normal_wake_from_gp
or pass a boot parameter "rcutree.rcu_normal_wake_from_gp=1"
- Default is 0.
+ Default is 1 if num_possible_cpus() <= 16 and it is not explicitly
+ disabled by the boot parameter passing 0.
rcuscale.gp_async= [KNL]
Measure performance of asynchronous
--
2.39.5
next prev parent reply other threads:[~2025-06-11 17:57 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-06-11 17:56 [PATCH v2 1/2] rcu: Enable rcu_normal_wake_from_gp on small systems Uladzislau Rezki (Sony)
2025-06-11 17:56 ` Uladzislau Rezki (Sony) [this message]
2025-06-11 21:49 ` [PATCH v2 2/2] Documentation/kernel-parameters: Update rcu_normal_wake_from_gp doc Joel Fernandes
2025-06-12 9:35 ` Uladzislau Rezki
2025-06-11 21:48 ` [PATCH v2 1/2] rcu: Enable rcu_normal_wake_from_gp on small systems Joel Fernandes
2025-06-12 9:35 ` Uladzislau Rezki
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