From: Andi Kleen <andi@firstfloor.org>
To: Christoph Lameter <clameter@sgi.com>
Cc: Andi Kleen <andi@firstfloor.org>,
akpm@linux-foundation.org, linux-kernel@vger.kernel.org,
linux-mm@kvack.org
Subject: Re: SLUB: The unqueued Slab allocator
Date: Fri, 23 Feb 2007 01:16:53 +0100 [thread overview]
Message-ID: <20070223001653.GA16108@one.firstfloor.org> (raw)
In-Reply-To: <Pine.LNX.4.64.0702221040140.2011@schroedinger.engr.sgi.com>
On Thu, Feb 22, 2007 at 10:42:23AM -0800, Christoph Lameter wrote:
> On Thu, 22 Feb 2007, Andi Kleen wrote:
>
> > > SLUB does not need a cache reaper for UP systems.
> >
> > This means constructors/destructors are becomming worthless?
> > Can you describe your rationale why you think they don't make
> > sense on UP?
>
> Cache reaping has nothing to do with constructors and destructors. SLUB
> fully supports constructors and destructors.
If you don't cache constructed but free objects then there is no cache
advantage of constructors/destructors and they would be useless.
-Andi
WARNING: multiple messages have this Message-ID (diff)
From: Andi Kleen <andi@firstfloor.org>
To: Christoph Lameter <clameter@sgi.com>
Cc: Andi Kleen <andi@firstfloor.org>,
akpm@linux-foundation.org, linux-kernel@vger.kernel.org,
linux-mm@kvack.org
Subject: Re: SLUB: The unqueued Slab allocator
Date: Fri, 23 Feb 2007 01:16:53 +0100 [thread overview]
Message-ID: <20070223001653.GA16108@one.firstfloor.org> (raw)
In-Reply-To: <Pine.LNX.4.64.0702221040140.2011@schroedinger.engr.sgi.com>
On Thu, Feb 22, 2007 at 10:42:23AM -0800, Christoph Lameter wrote:
> On Thu, 22 Feb 2007, Andi Kleen wrote:
>
> > > SLUB does not need a cache reaper for UP systems.
> >
> > This means constructors/destructors are becomming worthless?
> > Can you describe your rationale why you think they don't make
> > sense on UP?
>
> Cache reaping has nothing to do with constructors and destructors. SLUB
> fully supports constructors and destructors.
If you don't cache constructed but free objects then there is no cache
advantage of constructors/destructors and they would be useless.
-Andi
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next prev parent reply other threads:[~2007-02-23 0:16 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-02-22 7:00 SLUB: The unqueued Slab allocator Christoph Lameter
2007-02-22 7:00 ` Christoph Lameter
2007-02-22 8:34 ` Peter Zijlstra
2007-02-22 8:34 ` Peter Zijlstra
2007-02-22 15:25 ` Christoph Lameter
2007-02-22 15:25 ` Christoph Lameter
2007-02-22 8:58 ` David Miller
2007-02-22 8:58 ` David Miller, Christoph Lameter
2007-02-22 15:26 ` Christoph Lameter
2007-02-22 15:26 ` Christoph Lameter
2007-02-22 10:49 ` Pekka Enberg
2007-02-22 10:49 ` Pekka Enberg
2007-02-22 15:15 ` Christoph Lameter
2007-02-22 15:15 ` Christoph Lameter
2007-02-22 17:54 ` Andi Kleen
2007-02-22 17:54 ` Andi Kleen
2007-02-22 18:42 ` Christoph Lameter
2007-02-22 18:42 ` Christoph Lameter
2007-02-23 0:16 ` Andi Kleen [this message]
2007-02-23 0:16 ` Andi Kleen
2007-02-23 4:55 ` Christoph Lameter
2007-02-23 4:55 ` Christoph Lameter
2007-02-24 5:28 ` KAMEZAWA Hiroyuki
2007-02-24 5:28 ` KAMEZAWA Hiroyuki
2007-02-24 5:47 ` Christoph Lameter
2007-02-24 5:47 ` Christoph Lameter
2007-02-24 5:54 ` David Miller
2007-02-24 5:54 ` David Miller, Christoph Lameter
2007-02-24 17:32 ` Christoph Lameter
2007-02-24 17:32 ` Christoph Lameter
2007-02-24 19:33 ` Jörn Engel
2007-02-24 19:33 ` Jörn Engel
2007-02-25 0:14 ` Christoph Lameter
2007-02-25 12:23 ` Jörn Engel
2007-02-25 12:23 ` Jörn Engel
2007-02-25 0:53 ` David Miller
2007-02-25 0:53 ` David Miller, Christoph Lameter
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