Re: SLUB performance regression vs SLAB

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To: Matthew Wilcox <matthew@...>
Cc: Jens Axboe <jens.axboe@...>, David Chinner <dgc@...>, David Miller <davem@...>, <cebbert@...>, <willy@...>, <nickpiggin@...>, <hch@...>, <mel@...>, <linux-fsdevel@...>, <linux-kernel@...>, <suresh.b.siddha@...>
Date: Friday, October 5, 2007 - 3:27 pm

On Fri, 5 Oct 2007, Matthew Wilcox wrote:


Too bad. If this would work then I would have a load to work against. I 
have a patch here that may address the issue for SMP (no NUMA for now) by 
batching all frees on the per cpu freelist and then dumping them in 
groups. But it is likely not too wise to have you run your weeklong 
tests on this one. Needs some more care first.



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Messages in current thread:
[15/17] SLUB: Support virtual fallback via SLAB_VFALLBACK, Christoph Lameter, (Tue Sep 18, 11:36 pm)
Re: [15/17] SLUB: Support virtual fallback via SLAB_VFALLBACK, Christoph Lameter, (Fri Sep 28, 1:33 pm)
Re: [15/17] SLUB: Support virtual fallback via SLAB_VFALLBACK, Christoph Lameter, (Mon Oct 1, 4:50 pm)
SLUB performance regression vs SLAB, Matthew Wilcox, (Thu Oct 4, 12:16 pm)
Re: SLUB performance regression vs SLAB, Christoph Lameter, (Thu Oct 4, 1:38 pm)
Re: SLUB performance regression vs SLAB, Arjan van de Ven, (Thu Oct 4, 1:50 pm)
Re: SLUB performance regression vs SLAB, David Miller, (Thu Oct 4, 4:48 pm)
RE: SLUB performance regression vs SLAB, David Schwartz, (Thu Oct 4, 7:39 pm)
Re: SLUB performance regression vs SLAB, Chuck Ebbert, (Thu Oct 4, 7:49 pm)
RE: SLUB performance regression vs SLAB, David Schwartz, (Fri Oct 5, 12:18 am)
Re: SLUB performance regression vs SLAB, Matthew Wilcox, (Thu Oct 4, 4:58 pm)
Re: SLUB performance regression vs SLAB, Christoph Lameter, (Thu Oct 4, 5:11 pm)
Re: SLUB performance regression vs SLAB, David Miller, (Thu Oct 4, 5:05 pm)
Re: SLUB performance regression vs SLAB, Peter Zijlstra, (Thu Oct 4, 2:26 pm)
Re: SLUB performance regression vs SLAB, Christoph Lameter, (Thu Oct 4, 1:58 pm)
Re: SLUB performance regression vs SLAB, Matthew Wilcox, (Thu Oct 4, 2:32 pm)
Re: SLUB performance regression vs SLAB, Christoph Lameter, (Thu Oct 4, 1:49 pm)
Re: SLUB performance regression vs SLAB, Matthew Wilcox, (Thu Oct 4, 3:28 pm)
Re: SLUB performance regression vs SLAB, David Miller, (Thu Oct 4, 4:55 pm)
Re: SLUB performance regression vs SLAB, Chuck Ebbert, (Thu Oct 4, 5:02 pm)
Re: SLUB performance regression vs SLAB, Peter Zijlstra, (Fri Oct 5, 4:32 pm)
Re: SLUB performance regression vs SLAB, David Miller, (Fri Oct 5, 5:31 pm)
Re: SLUB performance regression vs SLAB, David Miller, (Thu Oct 4, 5:11 pm)
Re: SLUB performance regression vs SLAB, Chuck Ebbert, (Thu Oct 4, 5:47 pm)
Re: SLUB performance regression vs SLAB, David Miller, (Thu Oct 4, 6:07 pm)
Re: SLUB performance regression vs SLAB, David Chinner, (Thu Oct 4, 6:23 pm)
Re: SLUB performance regression vs SLAB, Jens Axboe, (Fri Oct 5, 2:48 am)
Re: SLUB performance regression vs SLAB, Matthew Wilcox, (Fri Oct 5, 7:56 am)
Re: SLUB performance regression vs SLAB, Christoph Lameter, (Fri Oct 5, 3:27 pm)
Re: SLUB performance regression vs SLAB, Jens Axboe, (Fri Oct 5, 8:37 am)
Re: SLUB performance regression vs SLAB, Pekka Enberg, (Fri Oct 5, 5:19 am)
Re: SLUB performance regression vs SLAB, Jens Axboe, (Fri Oct 5, 5:28 am)
Re: SLUB performance regression vs SLAB, Andi Kleen, (Fri Oct 5, 7:12 am)
Re: SLUB performance regression vs SLAB, Jens Axboe, (Fri Oct 5, 8:39 am)
Re: SLUB performance regression vs SLAB, Christoph Lameter, (Fri Oct 5, 3:31 pm)
Re: SLUB performance regression vs SLAB, Christoph Lameter, (Fri Oct 5, 3:32 pm)
Re: SLUB performance regression vs SLAB, Matthew Wilcox, (Thu Oct 4, 5:05 pm)
Re: SLUB performance regression vs SLAB, Christoph Lameter, (Thu Oct 4, 10:43 pm)
Re: SLUB performance regression vs SLAB, Arjan van de Ven, (Thu Oct 4, 10:53 pm)
Re: SLUB performance regression vs SLAB, Christoph Lameter, (Thu Oct 4, 3:05 pm)
Re: SLUB performance regression vs SLAB, Siddha, Suresh B, (Thu Oct 4, 3:46 pm)
Re: [15/17] SLUB: Support virtual fallback via SLAB_VFALLBACK, Christoph Lameter, (Mon Oct 1, 5:10 pm)
Re: [15/17] SLUB: Support virtual fallback via SLAB_VFALLBACK, Christoph Lameter, (Fri Sep 28, 2:20 pm)
Re: [15/17] SLUB: Support virtual fallback via SLAB_VFALLBACK, Christoph Lameter, (Mon Oct 1, 5:01 pm)
Re: [15/17] SLUB: Support virtual fallback via SLAB_VFALLBACK, Christoph Lameter, (Mon Oct 1, 4:55 pm)
Re: [15/17] SLUB: Support virtual fallback via SLAB_VFALLBACK, Christoph Lameter, (Mon Oct 1, 5:38 pm)
Re: [15/17] SLUB: Support virtual fallback via SLAB_VFALLBACK, Christoph Lameter, (Mon Oct 1, 5:52 pm)
Re: [15/17] SLUB: Support virtual fallback via SLAB_VFALLBACK, Christoph Lameter, (Fri Sep 28, 2:41 pm)