Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752331AbbETHBo (ORCPT ); Wed, 20 May 2015 03:01:44 -0400 Received: from [198.137.202.9] ([198.137.202.9]:54300 "EHLO bombadil.infradead.org" rhost-flags-FAIL-FAIL-OK-OK) by vger.kernel.org with ESMTP id S1751067AbbETHBk (ORCPT ); Wed, 20 May 2015 03:01:40 -0400 Date: Wed, 20 May 2015 09:00:57 +0200 From: Peter Zijlstra To: Vince Weaver Cc: LKML , Stephane Eranian , Arnaldo Carvalho de Melo , Jiri Olsa , Ingo Molnar , Paul Mackerras Subject: Re: perf: odd event scheduling issue Message-ID: <20150520070057.GK3644@twins.programming.kicks-ass.net> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: 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: 710 Lines: 18 On Tue, May 19, 2015 at 11:07:09PM -0400, Vince Weaver wrote: > Hello > > so I'm running 4.1-rc4 on my Haswell machine and a lot of my perf_event > testsuite is failing. There seems to be weird event scheduling issues. > > I can reproduce it with plain perf; simple event groups that should work > fine can't be scheduled. > > vince@haswell:~$ perf stat -e \{cycles,instructions\} sleep 1 > Hmm indeed, my ivb-ep does the same thing. Lemme go poke at that. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/