From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stanislav Meduna Subject: Re: How to find long execution times in kernel threads? Date: Tue, 30 Apr 2013 20:02:23 +0200 Message-ID: <5180072F.7010102@meduna.org> References: <517FCBA3.1000909@meduna.org> <517FF6B1.9050204@osadl.org> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: Linux RT Users To: Carsten Emde Return-path: Received: from www.meduna.org ([92.240.244.38]:52937 "EHLO meduna.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1760203Ab3D3SCd (ORCPT ); Tue, 30 Apr 2013 14:02:33 -0400 In-Reply-To: <517FF6B1.9050204@osadl.org> Sender: linux-rt-users-owner@vger.kernel.org List-ID: On 30.04.2013 18:52, Carsten Emde wrote: > Sure, record everything (trace-cmd record -e all) and analyze the > traces. Well, the problem is that with record -e all I get 20 ms instead of 1 ms, so I'd say Mr. Heisenberg laughs at me loudly here ;) Thanks for the pointer anyway, I'll try to thoroughly read the available documentation and come up with some sane set of filters to start with. Thanks -- Stano