From: Pekka Enberg <penberg@cs.helsinki.fi>
To: Nick Piggin <npiggin@suse.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
Christoph Lameter <cl@linux-foundation.org>,
Christoph Lameter <cl@linux.com>,
linux-mm@kvack.org, LKML <linux-kernel@vger.kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
David Rientjes <rientjes@google.com>,
Zhang Yanmin <yanmin_zhang@linux.intel.com>,
Matthew Wilcox <willy@linux.intel.com>,
Matt Mackall <mpm@selenic.com>, Mel Gorman <mel@csn.ul.ie>
Subject: Re: [RFC V2 SLEB 00/14] The Enhanced(hopefully) Slab Allocator
Date: Tue, 25 May 2010 20:02:32 +0300 [thread overview]
Message-ID: <AANLkTilEIwPSN-stGGuu5wV4Q6Ty0GytNMpfq-vRpK_k@mail.gmail.com> (raw)
In-Reply-To: <20100525154352.GB20853@laptop>
Hi Nick,
On Tue, May 25, 2010 at 6:43 PM, Nick Piggin <npiggin@suse.de> wrote:
> As far as I can see, there was never a good reason to replace SLAB
> rather than clean up its code and make incremental improvements.
I'm not totally convinced but I guess we're about to find that out.
How do you propose we benchmark SLAB while we clean it up and change
things to make sure we don't make the same mistakes as we did with
SLUB (i.e. miss an important workload like TPC-C)?
Pekka
WARNING: multiple messages have this Message-ID (diff)
From: Pekka Enberg <penberg@cs.helsinki.fi>
To: Nick Piggin <npiggin@suse.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
Christoph Lameter <cl@linux-foundation.org>,
Christoph Lameter <cl@linux.com>,
linux-mm@kvack.org, LKML <linux-kernel@vger.kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
David Rientjes <rientjes@google.com>,
Zhang Yanmin <yanmin_zhang@linux.intel.com>,
Matthew Wilcox <willy@linux.intel.com>,
Matt Mackall <mpm@selenic.com>, Mel Gorman <mel@csn.ul.ie>
Subject: Re: [RFC V2 SLEB 00/14] The Enhanced(hopefully) Slab Allocator
Date: Tue, 25 May 2010 20:02:32 +0300 [thread overview]
Message-ID: <AANLkTilEIwPSN-stGGuu5wV4Q6Ty0GytNMpfq-vRpK_k@mail.gmail.com> (raw)
In-Reply-To: <20100525154352.GB20853@laptop>
Hi Nick,
On Tue, May 25, 2010 at 6:43 PM, Nick Piggin <npiggin@suse.de> wrote:
> As far as I can see, there was never a good reason to replace SLAB
> rather than clean up its code and make incremental improvements.
I'm not totally convinced but I guess we're about to find that out.
How do you propose we benchmark SLAB while we clean it up and change
things to make sure we don't make the same mistakes as we did with
SLUB (i.e. miss an important workload like TPC-C)?
Pekka
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next prev parent reply other threads:[~2010-05-25 17:02 UTC|newest]
Thread overview: 89+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-05-21 21:14 [RFC V2 SLEB 00/14] The Enhanced(hopefully) Slab Allocator Christoph Lameter
2010-05-21 21:14 ` [RFC V2 SLEB 01/14] slab: Introduce a constant for a unspecified node Christoph Lameter
2010-06-07 21:44 ` David Rientjes
2010-06-07 22:30 ` Christoph Lameter
2010-06-08 5:41 ` Pekka Enberg
2010-06-08 6:20 ` David Rientjes
2010-06-08 6:34 ` Pekka Enberg
2010-06-08 23:35 ` David Rientjes
2010-06-09 5:55 ` Pekka Enberg
2010-06-09 5:55 ` Pekka Enberg
2010-06-09 6:20 ` David Rientjes
2010-06-09 6:20 ` David Rientjes
2010-05-21 21:14 ` [RFC V2 SLEB 02/14] SLUB: Constants need UL Christoph Lameter
2010-05-21 21:14 ` [RFC V2 SLEB 03/14] SLUB: Use kmem_cache flags to detect if Slab is in debugging mode Christoph Lameter
2010-06-08 3:57 ` David Rientjes
2010-05-21 21:14 ` [RFC V2 SLEB 04/14] SLUB: discard_slab_unlock Christoph Lameter
2010-05-21 21:14 ` [RFC V2 SLEB 05/14] SLUB: is_kmalloc_cache Christoph Lameter
2010-06-08 8:54 ` David Rientjes
2010-05-21 21:14 ` [RFC V2 SLEB 06/14] SLUB: Get rid of the kmalloc_node slab Christoph Lameter
2010-06-09 6:14 ` David Rientjes
2010-06-09 16:14 ` Christoph Lameter
2010-06-09 16:26 ` Pekka Enberg
2010-06-10 6:07 ` Pekka Enberg
2010-05-21 21:14 ` [RFC V2 SLEB 07/14] SLEB: The Enhanced Slab Allocator Christoph Lameter
2010-05-21 21:15 ` [RFC V2 SLEB 08/14] SLEB: Resize cpu queue Christoph Lameter
2010-05-21 21:15 ` [RFC V2 SLEB 09/14] SLED: Get rid of useless function Christoph Lameter
2010-05-21 21:15 ` [RFC V2 SLEB 10/14] SLEB: Remove MAX_OBJS limitation Christoph Lameter
2010-05-21 21:15 ` [RFC V2 SLEB 11/14] SLEB: Add per node cache (with a fixed size for now) Christoph Lameter
2010-05-21 21:15 ` [RFC V2 SLEB 12/14] SLEB: Make the size of the shared cache configurable Christoph Lameter
2010-05-21 21:15 ` [RFC V2 SLEB 13/14] SLEB: Enhanced NUMA support Christoph Lameter
2010-05-21 21:15 ` [RFC V2 SLEB 14/14] SLEB: Allocate off node objects from remote shared caches Christoph Lameter
2010-05-22 8:37 ` [RFC V2 SLEB 00/14] The Enhanced(hopefully) Slab Allocator Pekka Enberg
2010-05-24 7:03 ` Nick Piggin
2010-05-24 15:06 ` Christoph Lameter
2010-05-25 2:06 ` Nick Piggin
2010-05-25 6:55 ` Pekka Enberg
2010-05-25 7:07 ` Nick Piggin
2010-05-25 8:03 ` Pekka Enberg
2010-05-25 8:03 ` Pekka Enberg
2010-05-25 8:16 ` Nick Piggin
2010-05-25 8:16 ` Nick Piggin
2010-05-25 9:19 ` Pekka Enberg
2010-05-25 9:19 ` Pekka Enberg
2010-05-25 9:34 ` Nick Piggin
2010-05-25 9:34 ` Nick Piggin
2010-05-25 9:53 ` Pekka Enberg
2010-05-25 9:53 ` Pekka Enberg
2010-05-25 10:19 ` Nick Piggin
2010-05-25 10:19 ` Nick Piggin
2010-05-25 10:45 ` Pekka Enberg
2010-05-25 10:45 ` Pekka Enberg
2010-05-25 11:06 ` Nick Piggin
2010-05-25 11:06 ` Nick Piggin
2010-05-25 15:13 ` Linus Torvalds
2010-05-25 15:13 ` Linus Torvalds
2010-05-25 15:43 ` Nick Piggin
2010-05-25 15:43 ` Nick Piggin
2010-05-25 17:02 ` Pekka Enberg [this message]
2010-05-25 17:02 ` Pekka Enberg
2010-05-25 17:19 ` Nick Piggin
2010-05-25 17:19 ` Nick Piggin
2010-05-25 17:35 ` Pekka Enberg
2010-05-25 17:35 ` Pekka Enberg
2010-05-25 17:40 ` Nick Piggin
2010-05-25 17:40 ` Nick Piggin
2010-05-25 10:07 ` David Rientjes
2010-05-25 10:07 ` David Rientjes
2010-05-25 10:02 ` David Rientjes
2010-05-25 10:02 ` David Rientjes
2010-05-25 10:47 ` Pekka Enberg
2010-05-25 10:47 ` Pekka Enberg
2010-05-25 19:57 ` David Rientjes
2010-05-25 19:57 ` David Rientjes
2010-05-25 14:13 ` Christoph Lameter
2010-05-25 14:34 ` Nick Piggin
2010-05-25 14:43 ` Nick Piggin
2010-05-25 14:48 ` Christoph Lameter
2010-05-25 15:11 ` Nick Piggin
2010-05-25 15:28 ` Christoph Lameter
2010-05-25 15:37 ` Nick Piggin
2010-05-27 14:24 ` Christoph Lameter
2010-05-27 14:37 ` Nick Piggin
2010-05-27 15:52 ` Christoph Lameter
2010-05-27 16:07 ` Nick Piggin
2010-05-27 16:57 ` Christoph Lameter
2010-05-28 8:39 ` Nick Piggin
2010-05-25 14:40 ` Nick Piggin
2010-05-25 14:48 ` Christoph Lameter
2010-05-25 15:12 ` Nick Piggin
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