Received: by 2002:ad5:474a:0:0:0:0:0 with SMTP id i10csp2829994imu; Sun, 23 Dec 2018 08:44:31 -0800 (PST) X-Google-Smtp-Source: ALg8bN532c9mncR2fLDdB3kfQ5RnxBAS3Sj2GAKolw6WIJagdQr2pX32yk2921MehzbBWFZLPUM8 X-Received: by 2002:a6b:7207:: with SMTP id n7mr3610133ioc.85.1545583471537; Sun, 23 Dec 2018 08:44:31 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1545583471; cv=none; d=google.com; s=arc-20160816; b=npY7xro/4/G8xtD/hPaDpOLM0oCFFFsy3pmU2HLaZHehXnMIHAYx9Ocqn7IbIeabmd n5YKgp0ldOZsa+Aue3cDVgvFydQeiaequoaHP55TiziGdzPNqhKlcdbh3DMS7XXZzy5Q Pz1cmFmqr7iU3dq9tAYw7vTnWn9OULHiovxl+auTTl8ppniQkI0B6sF+BfzIQ3qc//RU zb4JzzPXkWJr1nmvPoORyeTLJt6L3v2Lq8IlQE8EiavkAF8zET5S6uByxAtpexxb6Qru LvDTJ5CRuGN97CpeEWUp+yON1zTUcUsNQV11Jq2jnfU+TiCJNEysXJ8kFYg0ibK6o/gy lX2A== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:date:message-id:subject:cc:from:to :in-reply-to; bh=Vxu4q939WSodQuMg+F7Nt9+4gc9MDuw97E4M58EaWkM=; b=xylApVr+lzNGcjNVzAZNxp7tcep6EI/5VTaJaNylXX6vOzJThslgC2fQBKd17VT8Iv 4bTv1XxLuYBV74D1mys6M4CuiCusEquZ+crR28Dohb5imQZ4MeoqW3tTm1MlDwM9Wia0 JDzWFF3Yv/cnW2Nd6WywT8ngfoX7keLT0PUaVmZ1fujqmG+kzwehFixRI59UeWQFJzw2 kXtw3M57puYw3iGtbM4BfpM8NGZPzcHDX/QNFyoH6+KjBEvWVUOz9uQogh4qIKyZrcEU ocYOjnluqswyinXr/wvih7suBAGcg1ujbgaW/gaYHc671wp8acoJmIybS1LmUphcVDA2 86xw== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id x5si15665296jag.113.2018.12.23.08.44.19; Sun, 23 Dec 2018 08:44:31 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728621AbeLWN1y (ORCPT + 99 others); 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