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[95.203.1.180]) by smtp.gmail.com with ESMTPSA id 2adb3069b0e04-556383baedesm1337410e87.23.2025.07.07.06.15.46 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 07 Jul 2025 06:15:47 -0700 (PDT) From: Uladzislau Rezki X-Google-Original-From: Uladzislau Rezki Date: Mon, 7 Jul 2025 15:15:45 +0200 To: Neeraj Upadhyay Cc: Uladzislau Rezki , "Paul E . McKenney" , Joel Fernandes , RCU , LKML , Frederic Weisbecker , Joel Fernandes Subject: Re: [PATCH v3 2/2] Documentation/kernel-parameters: Update rcu_normal_wake_from_gp doc Message-ID: References: <20250702145938.66459-1-urezki@gmail.com> <20250702145938.66459-2-urezki@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: On Mon, Jul 07, 2025 at 09:19:38AM +0530, Neeraj Upadhyay wrote: > > > On 7/3/2025 9:06 PM, Uladzislau Rezki wrote: > > On Wed, Jul 02, 2025 at 04:59:37PM +0200, Uladzislau Rezki (Sony) wrote: > >> Update the documentation about rcu_normal_wake_from_gp parameter. > >> > >> Reviewed-by: Joel Fernandes > >> Signed-off-by: Uladzislau Rezki (Sony) > >> --- > >> 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 > >> > > Same this one. Are you planning? > > > > Yes, will be including these in the PR for next merge window. > Appreciate it and thank you! -- Uladzislau Rezki