Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757845AbYBESGG (ORCPT ); Tue, 5 Feb 2008 13:06:06 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754474AbYBESFz (ORCPT ); Tue, 5 Feb 2008 13:05:55 -0500 Received: from relay2.sgi.com ([192.48.171.30]:53749 "EHLO relay.sgi.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1752077AbYBESFy (ORCPT ); Tue, 5 Feb 2008 13:05:54 -0500 Date: Tue, 5 Feb 2008 10:05:52 -0800 (PST) From: Christoph Lameter X-X-Sender: clameter@schroedinger.engr.sgi.com To: Pekka J Enberg cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: Re: SLUB: Support for statistics to help analyze allocator behavior In-Reply-To: Message-ID: References: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 869 Lines: 20 On Tue, 5 Feb 2008, Pekka J Enberg wrote: > Hi Christoph, > > On Mon, 4 Feb 2008, Christoph Lameter wrote: > > The statistics provided here allow the monitoring of allocator behavior > > at the cost of some (minimal) loss of performance. Counters are placed in > > SLUB's per cpu data structure that is already written to by other code. > > Looks good but I am wondering if we want to make the statistics per-CPU so > that we can see the kmalloc/kfree ping-pong of, for example, hackbench We could do that.... Any idea how to display that kind of information in a meaningful way. Parameter conventions for slabinfo? -- 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/