From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 23862C4338F for ; Tue, 10 Aug 2021 16:00:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 08E6660EDF for ; Tue, 10 Aug 2021 16:00:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238982AbhHJQAn (ORCPT ); Tue, 10 Aug 2021 12:00:43 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57540 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233605AbhHJQAk (ORCPT ); Tue, 10 Aug 2021 12:00:40 -0400 Received: from galois.linutronix.de (Galois.linutronix.de [IPv6:2a0a:51c0:0:12e:550::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3ED04C0613C1 for ; Tue, 10 Aug 2021 09:00:18 -0700 (PDT) From: Thomas Gleixner DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1628611216; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=XsXuHsnr+eKuIQBNM9hBeaZT5+Zuk2ta+rwPuC01OAw=; b=QitrkNrHsFesKFAGk+c8G+Nn4ysnLt6/EkysLk6zf9VKSdbIGDTEUzSES9RNjogWX45QTb cwtFDHhdGORiOMJe2RJlpPl2w/855hjiDqEvYqigsDFAl/zrDvEm5KECkksk2mI9oq2UCR 9J8/4pmnjsftq7tyOyvsOp5B3n4Vs/wf4hTtLR19u2g88QHz5UanyMTlScu5deeK0GsSOm LDeIbJzOj1oKMPq3HSqlo11bG+PXEUhXP1dNLljs3b1tDwLfGoe25c+1j7VZHiwOFcSCE8 kUq3QeYodjuccM61Rv4Vg7rN+MNR685CXDDa1nr2cbEi8BMG2qg7GOt+POijLw== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1628611216; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=XsXuHsnr+eKuIQBNM9hBeaZT5+Zuk2ta+rwPuC01OAw=; b=k3Nx2Ili89/kmI64z20XoAF1FLI0M2glZzEB2faUSueYxYyw6i+g2YTEvPcd84KGnJLhtV tWwIWNlPbq8dGzCg== To: Jisheng Zhang , John Stultz , Stephen Boyd Cc: linux-kernel@vger.kernel.org Subject: Re: [PATCH v2] timer: Use static_branch_likely() for timers_nohz_active In-Reply-To: <20210624163218.39ae3ec6@xhacker.debian> References: <20210624163218.39ae3ec6@xhacker.debian> Date: Tue, 10 Aug 2021 18:00:16 +0200 Message-ID: <87im0dqohb.ffs@tglx> MIME-Version: 1.0 Content-Type: text/plain Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Jisheng, On Thu, Jun 24 2021 at 16:32, Jisheng Zhang wrote: > The static key timers_nohz_active is likely to be true, so use > static_branch_likely() to reflect this fact. you still lack any justification for your statement that NOHZ active is likely. It might be likely for your system, but is this true in general? Thanks, tglx