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From: Christoph Lameter <clameter@sgi.com>
To: Pekka J Enberg <penberg@cs.helsinki.fi>
Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: Re: SLUB: Support for statistics to help analyze allocator behavior
Date: Tue, 5 Feb 2008 10:05:52 -0800 (PST)	[thread overview]
Message-ID: <Pine.LNX.4.64.0802051005010.11705@schroedinger.engr.sgi.com> (raw)
In-Reply-To: <Pine.LNX.4.64.0802050923220.14675@sbz-30.cs.Helsinki.FI>

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?


  parent reply	other threads:[~2008-02-05 18:06 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-02-05  6:20 Christoph Lameter
2008-02-05  7:24 ` Pekka J Enberg
2008-02-05  7:49   ` Eric Dumazet
2008-02-05  7:54     ` Pekka J Enberg
2008-02-05 18:08       ` Christoph Lameter
2008-02-05 18:55         ` Eric Dumazet
2008-02-05 19:07           ` Christoph Lameter
2008-02-05 18:05   ` Christoph Lameter [this message]
2008-02-05 20:20     ` Pekka Enberg
2008-02-05 21:58       ` Christoph Lameter
2008-02-05 22:19         ` Pekka J Enberg
2008-02-06  8:19 ` Andrew Morton
2008-02-06 19:01   ` Christoph Lameter
2008-02-06 21:00   ` SLUB: statistics improvements Christoph Lameter
2008-02-06 21:40     ` Eric Dumazet
2008-02-06 22:10       ` Christoph Lameter

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