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=ham 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 D241AC43613 for ; Sun, 23 Dec 2018 13:27:55 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id AAA002173B for ; Sun, 23 Dec 2018 13:27:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728638AbeLWN1y (ORCPT ); Sun, 23 Dec 2018 08:27:54 -0500 Received: from ozlabs.org ([203.11.71.1]:52441 "EHLO ozlabs.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725813AbeLWN1y (ORCPT ); Sun, 23 Dec 2018 08:27:54 -0500 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 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 Subject: Re: [v2] Powerpc/perf: Wire up PMI throttling Message-Id: <43N3884F5Nz9sDP@ozlabs.org> Date: Mon, 24 Dec 2018 00:27:52 +1100 (AEDT) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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