Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932848AbaBFN4m (ORCPT ); Thu, 6 Feb 2014 08:56:42 -0500 Received: from mx1.redhat.com ([209.132.183.28]:64379 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755990AbaBFN4l (ORCPT ); Thu, 6 Feb 2014 08:56:41 -0500 Date: Thu, 6 Feb 2014 11:56:27 -0200 From: Arnaldo Carvalho de Melo To: Stephane Eranian Cc: LKML , Peter Zijlstra , "mingo@elte.hu" , Jiri Olsa , Eric Dumazet Subject: Re: [BUG] perf top: --stdio causes continuous refresh Message-ID: <20140206135627.GA26955@infradead.org> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Url: http://acmel.wordpress.com User-Agent: Mutt/1.5.20 (2009-12-10) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Em Wed, Feb 05, 2014 at 10:25:09PM +0100, Stephane Eranian escreveu: > If you run perf top on 3.14 but you force --stdio mode, perf top > goes crazy and constantly refreshes the output. > > It does that with many older versions of the perf as well on 3.14. > It runs fine with newt mode. > > Works fine with my 3.11 kernel. So something must be broken > with 3.14. > Can you reproduce the problem as well? Not so far, using my perf/urgent branch: [root@ssdandy ~]# perf --version perf version 3.13.g1da187 Also it honours --delay, i.e. # perf top --delay 5 --stdio it will wait 5 seconds between refreshes, etc. Checking out v3.14-rc1 now. - Arnaldo -- 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/