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=-9.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SIGNED_OFF_BY,SPF_PASS autolearn=unavailable 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 89870C43387 for ; Sun, 23 Dec 2018 13:33:05 +0000 (UTC) Received: from lists.ozlabs.org (lists.ozlabs.org [203.11.71.2]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 38E0921855 for ; Sun, 23 Dec 2018 13:33:05 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 38E0921855 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=ellerman.id.au Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 43N3G72cjMzDqS5 for ; Mon, 24 Dec 2018 00:33:03 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; dmarc=none (p=none dis=none) header.from=ellerman.id.au Received: from ozlabs.org (bilbo.ozlabs.org [203.11.71.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 43N3885HvxzDqVw for ; Mon, 24 Dec 2018 00:27:52 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; dmarc=none (p=none dis=none) header.from=ellerman.id.au Received: by ozlabs.org (Postfix, from userid 1034) id 43N3884F5Nz9sDP; Mon, 24 Dec 2018 00:27:52 +1100 (AEDT) X-powerpc-patch-notification: thanks X-powerpc-patch-commit: 0c9108b083706330cd5484d121fbb0ad67e8f647 X-Patchwork-Hint: ignore In-Reply-To: <20181121035637.17446-1-ravi.bangoria@linux.ibm.com> To: Ravi Bangoria , linuxppc-dev@lists.ozlabs.org From: Michael Ellerman Subject: Re: [v2] Powerpc/perf: Wire up PMI throttling Message-Id: <43N3884F5Nz9sDP@ozlabs.org> Date: Mon, 24 Dec 2018 00:27:52 +1100 (AEDT) X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Ravi Bangoria , maddy@linux.vnet.ibm.com, linux-kernel@vger.kernel.org, npiggin@gmail.com, paulus@samba.org, ebiederm@xmission.com, muriloo@linux.ibm.com, leitao@debian.org, naveen.n.rao@linux.vnet.ibm.com, aneesh.kumar@linux.vnet.ibm.com Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" On Wed, 2018-11-21 at 03:56:37 UTC, Ravi Bangoria wrote: > Commit 14c63f17b1fde ("perf: Drop sample rate when sampling is too > slow") introduced a way to throttle PMU interrupts if we're spending > too much time just processing those. Wire up powerpc PMI handler to > use this infrastructure. > > We have throttling of the *rate* of interrupts, but this adds > throttling based on the *time taken* to process the interrupts. > > Signed-off-by: Ravi Bangoria Applied to powerpc next, thanks. https://git.kernel.org/powerpc/c/0c9108b083706330cd5484d121fbb0 cheers