From: Matt Mackall <mpm@selenic.com>
To: David Rientjes <rientjes@google.com>
Cc: Pekka Enberg <penberg@cs.helsinki.fi>,
Peter Zijlstra <peterz@infradead.org>,
"Paul E. McKenney" <paulmck@linux.vnet.ibm.com>,
linux-mm@kvack.org, Christoph Lameter <cl@linux-foundation.org>,
linux-kernel@vger.kernel.org, Nick Piggin <npiggin@suse.de>
Subject: Re: lockdep complaints in slab allocator
Date: Wed, 25 Nov 2009 17:06:47 -0600 [thread overview]
Message-ID: <1259190407.2858.61.camel@calx> (raw)
In-Reply-To: <alpine.DEB.2.00.0911251356130.11347@chino.kir.corp.google.com>
On Wed, 2009-11-25 at 13:59 -0800, David Rientjes wrote:
> On Tue, 24 Nov 2009, Matt Mackall wrote:
>
> > I'm afraid I have only anecdotal reports from SLOB users, and embedded
> > folks are notorious for lack of feedback, but I only need a few people
> > to tell me they're shipping 100k units/mo to be confident that SLOB is
> > in use in millions of devices.
> >
>
> It's much more popular than I had expected; do you think it would be
> possible to merge slob's core into another allocator or will it require
> seperation forever?
Probably not. It's actually a completely different kind of allocator
than the rest as it doesn't actually use "slabs" at all. It's instead a
slab-like interface on a traditional heap allocator. SLAB/SLUB/SLQB have
much more in common - their biggest differences are about their approach
to scalability/locking issues.
On the upside, SLOB is easily the simplest of the bunch.
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next prev parent reply other threads:[~2009-11-25 23:10 UTC|newest]
Thread overview: 61+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-11-18 18:12 Paul E. McKenney
2009-11-20 6:49 ` Pekka Enberg
2009-11-20 9:25 ` Peter Zijlstra
2009-11-20 10:38 ` Pekka Enberg
2009-11-20 10:52 ` Peter Zijlstra
2009-11-20 11:05 ` Pekka Enberg
2009-11-20 14:48 ` Paul E. McKenney
2009-11-20 15:17 ` Peter Zijlstra
2009-11-20 16:25 ` Paul E. McKenney
2009-11-20 15:09 ` Peter Zijlstra
2009-11-23 19:00 ` Pekka Enberg
2009-11-23 19:10 ` Matt Mackall
2009-11-23 19:13 ` Pekka Enberg
2009-11-24 16:33 ` Peter Zijlstra
2009-11-24 17:00 ` Paul E. McKenney
2009-11-24 17:12 ` Matt Mackall
2009-11-24 17:58 ` Paul E. McKenney
2009-11-24 18:14 ` Peter Zijlstra
2009-11-24 18:25 ` Paul E. McKenney
2009-11-24 18:31 ` Peter Zijlstra
2009-11-24 18:53 ` Christoph Lameter
2009-11-24 18:54 ` Paul E. McKenney
2009-11-24 19:23 ` Matt Mackall
2009-11-24 19:50 ` Paul E. McKenney
2009-11-24 20:46 ` Peter Zijlstra
2009-11-24 20:53 ` Matt Mackall
2009-11-24 21:01 ` Peter Zijlstra
2009-11-24 21:03 ` David Rientjes
2009-11-24 21:12 ` Peter Zijlstra
2009-11-24 21:19 ` Pekka Enberg
2009-11-24 21:22 ` David Rientjes
2009-11-24 21:35 ` Peter Zijlstra
2009-11-24 21:46 ` David Rientjes
2009-11-24 22:23 ` Paul E. McKenney
2009-11-25 7:12 ` Pekka Enberg
2009-11-25 7:25 ` Pekka Enberg
2009-11-27 17:22 ` Christoph Lameter
2009-11-24 21:48 ` Paul E. McKenney
2009-11-24 21:16 ` Pekka Enberg
2009-11-24 21:07 ` Pekka Enberg
2009-11-24 22:55 ` Matt Mackall
2009-11-25 21:59 ` David Rientjes
2009-11-25 23:06 ` Matt Mackall [this message]
2009-11-27 17:28 ` Christoph Lameter
2009-11-30 23:14 ` David Rientjes
2009-12-01 0:21 ` Matt Mackall
2009-12-01 22:41 ` David Rientjes
2009-12-01 16:47 ` Christoph Lameter
2009-11-27 17:26 ` Christoph Lameter
2009-11-23 19:30 ` Christoph Lameter
2009-11-23 19:43 ` Paul E. McKenney
2009-11-23 19:50 ` Pekka Enberg
2009-11-23 20:01 ` Pekka Enberg
2009-11-23 20:57 ` Paul E. McKenney
2009-11-23 21:01 ` Matt Mackall
2009-11-24 16:23 ` Paul E. McKenney
2009-11-24 20:59 ` Pekka Enberg
2009-11-24 21:26 ` Peter Zijlstra
2009-11-25 10:42 ` Pekka Enberg
2009-11-24 21:47 ` Paul E. McKenney
2009-11-30 16:18 ` Paul E. McKenney
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