Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965248AbXBTWOo (ORCPT ); Tue, 20 Feb 2007 17:14:44 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S965261AbXBTWOn (ORCPT ); Tue, 20 Feb 2007 17:14:43 -0500 Received: from netops-testserver-4-out.sgi.com ([192.48.171.29]:56769 "EHLO netops-testserver-4.corp.sgi.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S965248AbXBTWOn (ORCPT ); Tue, 20 Feb 2007 17:14:43 -0500 Date: Tue, 20 Feb 2007 14:14:38 -0800 (PST) From: Christoph Lameter To: Max Krasnyansky cc: Oleg Nesterov , Ingo Molnar , Srivatsa Vaddagiri , "Pallipadi, Venkatesh" , Gautham shenoy , Andrew Morton , linux-kernel@vger.kernel.org Subject: Re: slab: start_cpu_timer/cache_reap CONFIG_HOTPLUG_CPU problems In-Reply-To: <45DB6FC7.60502@qualcomm.com> Message-ID: References: <20070129011301.GA844@tv-sign.ru> <20070129171923.GA138@tv-sign.ru> <20070129182742.GA158@tv-sign.ru> <45DB404C.4070305@qualcomm.com> <20070220200550.GA85@tv-sign.ru> <45DB669B.2010307@qualcomm.com> <45DB6FC7.60502@qualcomm.com> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 743 Lines: 17 On Tue, 20 Feb 2007, Max Krasnyansky wrote: > Ok. Sounds like disabling cache_reaper is a better option for now. Like you > said > it's unlikely that slabs will grow much if that cpu is not heavily used by the > kernel. Running for prolonged times without cache_reaper is no good. What we are talking about here is to disable the cache_reaper during cpu shutdown. The slab cpu shutdown will clean the per cpu caches anyways so we really do not need the slab_reaper running during cpu shutdown. - 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/