From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Tue, 5 Feb 2008 13:58:06 -0800 (PST) From: Christoph Lameter Subject: Re: SLUB: Support for statistics to help analyze allocator behavior In-Reply-To: <47A8C508.6010305@cs.helsinki.fi> Message-ID: References: <47A8C508.6010305@cs.helsinki.fi> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-linux-mm@kvack.org Return-Path: To: Pekka Enberg Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org List-ID: On Tue, 5 Feb 2008, Pekka Enberg wrote: > > We could do that.... Any idea how to display that kind of information in a > > meaningful way. Parameter conventions for slabinfo? > > We could just print out one total summary and one summary for each CPU (and > maybe show % of total allocations/fees. That way you can immediately spot if > some CPUs are doing more allocations/freeing than others. Ok that would work for small amounts of cpus. Note that we are moving to quad core, many standard enterprise servers already have 8 and will likely have 16 next year. Our machine can have thousands of processors (new "practical" limit is 4k cpus although we could reach 16k cpus easily). I was a bit scared to open that can of worms. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org