From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sitsofe Wheeler Subject: Re: Reading EeePC900 battery info causes stalls Date: Thu, 25 Sep 2008 12:56:10 +0100 Message-ID: <48DB7C5A.6070900@yahoo.com> References: <48DB5032.8020604@gmail.com> <48DB5B90.9060607@yahoo.com> <48DB5FEE.4000404@gmail.com> <48DB710A.2060206@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from ptb-relay03.plus.net ([212.159.14.147]:33225 "EHLO ptb-relay03.plus.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754775AbYIYL4F (ORCPT ); Thu, 25 Sep 2008 07:56:05 -0400 In-Reply-To: <48DB710A.2060206@gmail.com> Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: Alexey Starikovskiy Cc: linux-acpi@vger.kernel.org Alexey Starikovskiy wrote: > acpi_ps_parse_aml() is called not so often (~10000usec), so maybe it is > a "sweet spot" The latency is pretty bad with this patch (assuming you did not want it applied on top of your previous patch) Here's the tail end of a full trace: http://sucs.org/~sits/test/eeepc-debug/20080925/1250/latency_trace_all_tail.gz (3.3Mbytes but close 100Mbytes when decompressed) latency: 2912285 us, #1000038/5344107, CPU#0 | (M:desktop VP:0, KP:0, SP:0 HP:0 ) Here's a complete (but filtered) trace: http://sucs.org/~sits/test/eeepc-debug/20080925/1250/latency_trace.gz latency: 315814 us, #227600/227600, CPU#0 | (M:desktop VP:0, KP:0, SP:0 HP:0) -- Sitsofe | http://sucs.org/~sits/