Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753533AbcDBQdk (ORCPT ); Sat, 2 Apr 2016 12:33:40 -0400 Received: from bombadil.infradead.org ([198.137.202.9]:57099 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752760AbcDBQdi (ORCPT ); Sat, 2 Apr 2016 12:33:38 -0400 Date: Sat, 2 Apr 2016 18:33:34 +0200 From: Peter Zijlstra To: Markus Trippelsdorf Cc: linux-kernel@vger.kernel.org, Ingo Molnar , Arnaldo Carvalho de Melo , Alexander Shishkin Subject: Re: "perf: interrupt took too long" messages even with perf_cpu_time_max_percent==0 Message-ID: <20160402163334.GT3448@twins.programming.kicks-ass.net> References: <20160402093239.GA305@x4> <20160402110017.GP3448@twins.programming.kicks-ass.net> <20160402111726.GB305@x4> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20160402111726.GB305@x4> User-Agent: Mutt/1.5.21 (2012-12-30) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 286 Lines: 8 On Sat, Apr 02, 2016 at 01:17:26PM +0200, Markus Trippelsdorf wrote: > On 2016.04.02 at 13:00 +0200, Peter Zijlstra wrote: > > Ah, was 0 also meant to disable it? > > Yes. From Documentation/sysctl/kernel.txt: Oh wow, we have documentation on this! Learn something new every day :-)