Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932883AbaBFN6G (ORCPT ); Thu, 6 Feb 2014 08:58:06 -0500 Received: from mail-oa0-f47.google.com ([209.85.219.47]:44537 "EHLO mail-oa0-f47.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932085AbaBFN6C (ORCPT ); Thu, 6 Feb 2014 08:58:02 -0500 MIME-Version: 1.0 In-Reply-To: <20140206135627.GA26955@infradead.org> References: <20140206135627.GA26955@infradead.org> Date: Thu, 6 Feb 2014 14:58:01 +0100 Message-ID: Subject: Re: [BUG] perf top: --stdio causes continuous refresh From: Stephane Eranian To: Arnaldo Carvalho de Melo Cc: LKML , Peter Zijlstra , "mingo@elte.hu" , Jiri Olsa , Eric Dumazet Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Feb 6, 2014 at 2:56 PM, Arnaldo Carvalho de Melo wrote: > 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: > I am using tip.git. Or try 3.11, 3.10. > [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/