From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mout.web.de (mout.web.de [212.227.15.4]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 6850773514; Wed, 8 May 2024 09:18:35 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=212.227.15.4 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715159917; cv=none; b=IlEcnhHox13yIRLdfyDI2nYDHYYeDo30KjxbdGjfxSPZZlJD41L7kYPK9oJljB/Ntfb7BCnLh0Brk/X67Ed1laVt+HNoudZvFaoT+NWfOKn6W0uXap0GFCYsJnnQpcObCMv+R+XfIJHPOArbgEiWTjDP3/2XslnAchZcy9Z3cAk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715159917; c=relaxed/simple; bh=8zQKtPW1eJ2InIOMVxNlIQdRptMqkAuQ8gi1ij+1u6o=; h=Message-ID:Date:MIME-Version:To:Cc:References:Subject:From: In-Reply-To:Content-Type; b=asO0XeAZXGLCZwXs+C0cEa7lcLsGLIrJBJl/Jv5ylTgWajGtxykhHhkPyhayOu7ACwmch+v+ZREYtpjG8Krr/L+RASB2shOHaCLsWhFWpyC8/aRoxTzP4rHloCgY36LdmzCPQiGYpZlIvfbWHy3wgGGbLqhQghhNljRWnSfwObo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=web.de; spf=pass smtp.mailfrom=web.de; dkim=pass (2048-bit key) header.d=web.de header.i=markus.elfring@web.de header.b=L2RQNJRE; arc=none smtp.client-ip=212.227.15.4 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=web.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=web.de Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=web.de header.i=markus.elfring@web.de header.b="L2RQNJRE" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=web.de; s=s29768273; t=1715159905; x=1715764705; i=markus.elfring@web.de; bh=4K+0QbeFUqlSoTdyOHsVRQqCKg/ZfP7fePshKaGtvTI=; h=X-UI-Sender-Class:Message-ID:Date:MIME-Version:To:Cc:References: Subject:From:In-Reply-To:Content-Type:Content-Transfer-Encoding: cc:content-transfer-encoding:content-type:date:from:message-id: mime-version:reply-to:subject:to; b=L2RQNJRERCq0H1NdTRdJLCDvzTQaY0RmBdlY+m0an8VmpKh5awoUoQHlDmr/inYM 9P2CGB419ykVBD3W5/QdIr3b8XjlQyuS5kopMU67iTHa2ojjbSodhyDZnvXVw1HAY vZCAArJzTYMyyOTKHkVmhYqTgbjyYXdFrQbCbeYVI0PrGPj7FGJOwZCUx3Sp8krCi upQm3eGl1db+7Mvro69ttEIeIP/+HqTQpXWxv9K9n9inwp2JfQt8jBYMBYK8mcx+Z HLWmGrxx2GAzZmAF0RLGaSBKLI/X0VC9kCmuJXnj/rgb3LaU6beC8TaBT+aN32g28 d2sCBVvlG3EAloTkxQ== X-UI-Sender-Class: 814a7b36-bfc1-4dae-8640-3722d8ec6cd6 Received: from [192.168.178.21] ([94.31.89.95]) by smtp.web.de (mrweb006 [213.165.67.108]) with ESMTPSA (Nemesis) id 1M6pYY-1ryc6Z24TO-008Our; Wed, 08 May 2024 11:18:25 +0200 Message-ID: <67be5fa1-3b5e-4ec9-ad8e-1e230e618e98@web.de> Date: Wed, 8 May 2024 11:18:24 +0200 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird To: Levi Yun , kernel-janitors@vger.kernel.org, Anna-Maria Behnsen , Frederic Weisbecker , Ingo Molnar , Thomas Gleixner Cc: LKML References: <20240506213150.13608-1-ppbuk5246@gmail.com> Subject: Re: [PATCH] time/tick-sched: enable idle load balancing when nohz_full cpu becomes idle. Content-Language: en-GB From: Markus Elfring In-Reply-To: <20240506213150.13608-1-ppbuk5246@gmail.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Provags-ID: V03:K1:uRfiZVpxWGiezQy+aEUvp20o1nVajWnd9TIyhD5Au2rp/3Objou fpVE/oTBzeXsHkqOohuaD5aOLfaE+DakiQkQ3sc4d9w7LHkT1DYh8b5cpaNLtWn1eEaVJdr eDZ/BaOmViO+AkA77vkJl+RF+R0IIDkV98ciZBMdfQV32gGBWhgF9zCoe+9i167hQJnC99n FaB9Q84m1OfqRVUyUOyHQ== X-Spam-Flag: NO UI-OutboundReport: notjunk:1;M01:P0:CYkllL4xYGg=;4YI41hZYeO8UyocHIJITssqvgDF UPCIp3xlETBUWHEEJVkb9fNgjeXSjgj2O26vwQgBTmWFt9DvshPcZ148ebqR5dgWQlYAEBCO3 oVUMPyilquloVdhNRcGZrMj6mv/Bd0Fmg68VpvB7z4rHupAsrMKlerjl39sfxXNY21lPau5Oj xj9CKlsY916UnSprwoT+6PfQm0AOhJm09pLWmHDLGAKqPfIhVwAYvmk+NGNDzWhNHCBBXYVRj ZDNWjULzQTYrQwmoHVcWj5FpI3D8GoeTBeOSBYTcNgxNwV4S4gvI9UGrDqxvOD39gfz5JUD7X DGaxZWCQK4tb6I4wMLOEcwfI6dmJtu0h3rKeGzfnbmmBY8ZUlIjC0Ud+wNqVssmeMZyutYl7B 4PQnaduWmGdyIIFadk4lyu1N6DflRUZA01zoNCPFMLSTAbtUc0LH/S8fEbhERBZtcePRadR9P 1tVDb7yaOLH80rhg1DUF7ovSLtOrrhSPFI7GWSzU5kJbE0YD+ijF/It+/SYF8TW2f77g8hqB6 H/k0YZ+Fifh6yaqvwqa3DDv315OLKniJQIR0DPtyHKyOm6jD2GQhb7/fQWQC/1A+v3jC9w+ST gtoztJLUkbWOJObW8b/rywpdLaN+WfvSvVQyHbkm250E/TBbsSedbipZQzy0AD+xlDZ6JOJ70 wTBdXfmguLgV3s1nOiI03D9PisXu/lVN8ZQmPGpIugw1AuWUeT6M7ugTgab03HWHDpWsMajFJ yzm9Ri3xu0zswfnjPQprfn9bUP2lWV30IOpvZHnj/INm6Yo3WrugpUArDxzbrWVVMA+vRg9f+ 2axfeyzEmw6PcGQWD56aSkP7BCGxhgFqXEesb6Z1t6r2U= > When nohz_full CPU stops tick in tick_nohz_irq_exit(), > It wouldn't be chosen to perform idle load balancing bacause it doesn't =E2=80=A6 > So, nohz_balance_enter_idle() could be called safely without !was_stoope= d > check. * Please avoid typos in this change description. * How do you think about to add the tag =E2=80=9CFixes=E2=80=9D? * Would you like to use imperative wordings for an improved changelog? https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/= Documentation/process/submitting-patches.rst?h=3Dv6.9-rc7#n94 Regards, Markus