Re: [RFC PATCH] greatly reduce SLOB external fragmentation

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From: Christoph Lameter

Subject: Re: [RFC PATCH] greatly reduce SLOB external fragmentation

Date: Thursday, July 31, 2008 - 9:05 am

Andi Kleen wrote:
quoted text> On Thu, Jul 31, 2008 at 10:25:45AM -0500, Christoph Lameter wrote:
>> Andi Kleen wrote:
>>>> Finally getting rid of SLAB is a much trickier proposition because SLUB
>>>> still loses in a few important corner cases.
>>> The big issue is that we haven't really made much progress on at least
>>> some of these test cases (like the database benchmarks) for quite some
>>> time (and that wasn't for a lack of trying) :-/ Might be a fundamental
>>> problem.
>> It would be good to have more of these benchmark regressions than just TPC which requires a database setup etc etc. Preferably something that is easily runnable by everyone.
> 
> AFAIK willy had a small test case for at least one of them.

He is developing a scsi performance test program that showed a regression but it was proprietary last time I heard of it. Maybe its now available?

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Messages in current thread:

[PATCH] procfs: provide slub's /proc/slabinfo, Hugh Dickins, (Wed Jan 2, 11:43 am)

Re: [PATCH] procfs: provide slub's /proc/slabinfo, Christoph Lameter, (Wed Jan 2, 11:53 am)

Re: [PATCH] procfs: provide slub's /proc/slabinfo, Pekka Enberg, (Wed Jan 2, 12:09 pm)

Re: [PATCH] procfs: provide slub's /proc/slabinfo, Linus Torvalds, (Wed Jan 2, 12:35 pm)

Re: [PATCH] procfs: provide slub's /proc/slabinfo, Pekka Enberg, (Wed Jan 2, 12:49 pm)

Re: [PATCH] procfs: provide slub's /proc/slabinfo, Matt Mackall, (Wed Jan 2, 3:50 pm)

Re: [PATCH] procfs: provide slub's /proc/slabinfo, Ingo Molnar, (Thu Jan 3, 1:52 am)

Re: [PATCH] procfs: provide slub's /proc/slabinfo, Matt Mackall, (Thu Jan 3, 9:46 am)

Re: [PATCH] procfs: provide slub's /proc/slabinfo, Christoph Lameter, (Thu Jan 3, 7:21 pm)

Re: [PATCH] procfs: provide slub's /proc/slabinfo, Andi Kleen, (Thu Jan 3, 7:45 pm)

Re: [PATCH] procfs: provide slub's /proc/slabinfo, Matt Mackall, (Thu Jan 3, 9:11 pm)

Re: [PATCH] procfs: provide slub's /proc/slabinfo, Matt Mackall, (Thu Jan 3, 9:34 pm)

Re: [PATCH] procfs: provide slub's /proc/slabinfo, Christoph Lameter, (Fri Jan 4, 1:37 pm)

Re: [PATCH] procfs: provide slub's /proc/slabinfo, Matt Mackall, (Fri Jan 4, 1:55 pm)

Re: [PATCH] procfs: provide slub's /proc/slabinfo, Christoph Lameter, (Fri Jan 4, 2:36 pm)

Re: [PATCH] procfs: provide slub's /proc/slabinfo, Matt Mackall, (Fri Jan 4, 3:30 pm)

Re: [PATCH] procfs: provide slub's /proc/slabinfo, Pekka J Enberg, (Sat Jan 5, 9:21 am)

Re: [PATCH] procfs: provide slub's /proc/slabinfo, Christoph Lameter, (Sat Jan 5, 1:05 pm)

Re: [PATCH] procfs: provide slub's /proc/slabinfo, Christoph Lameter, (Sat Jan 5, 1:16 pm)

Re: [PATCH] procfs: provide slub's /proc/slabinfo, Matt Mackall, (Sun Jan 6, 10:51 am)

Re: [PATCH] procfs: provide slub's /proc/slabinfo, Pekka J Enberg, (Mon Jan 7, 11:06 am)

Re: [PATCH] procfs: provide slub's /proc/slabinfo, Matt Mackall, (Mon Jan 7, 12:03 pm)

Re: [PATCH] procfs: provide slub's /proc/slabinfo, Pekka J Enberg, (Mon Jan 7, 12:53 pm)

Re: [PATCH] procfs: provide slub's /proc/slabinfo, Pekka J Enberg, (Mon Jan 7, 1:12 pm)

Re: [PATCH] procfs: provide slub's /proc/slabinfo, Pekka J Enberg, (Mon Jan 7, 1:44 pm)

[RFC PATCH] greatly reduce SLOB external fragmentation, Matt Mackall, (Wed Jan 9, 12:15 pm)

Re: [RFC PATCH] greatly reduce SLOB external fragmentation, Pekka J Enberg, (Wed Jan 9, 3:43 pm)

Re: [RFC PATCH] greatly reduce SLOB external fragmentation, Matt Mackall, (Wed Jan 9, 3:59 pm)

Re: [RFC PATCH] greatly reduce SLOB external fragmentation, Matt Mackall, (Wed Jan 9, 7:46 pm)

Re: [RFC PATCH] greatly reduce SLOB external fragmentation, Pekka J Enberg, (Thu Jan 10, 3:02 am)

Re: [RFC PATCH] greatly reduce SLOB external fragmentation, Pekka J Enberg, (Thu Jan 10, 3:03 am)

Re: [PATCH] procfs: provide slub's /proc/slabinfo, Pekka J Enberg, (Thu Jan 10, 3:04 am)

Re: [RFC PATCH] greatly reduce SLOB external fragmentation, Matt Mackall, (Thu Jan 10, 8:44 am)

Re: [RFC PATCH] greatly reduce SLOB external fragmentation, Linus Torvalds, (Thu Jan 10, 9:13 am)

Re: [RFC PATCH] greatly reduce SLOB external fragmentation, Matt Mackall, (Thu Jan 10, 10:49 am)

Re: [RFC PATCH] greatly reduce SLOB external fragmentation, Andi Kleen, (Thu Jan 10, 11:13 am)

Re: [RFC PATCH] greatly reduce SLOB external fragmentation, Linus Torvalds, (Thu Jan 10, 11:28 am)

Re: [RFC PATCH] greatly reduce SLOB external fragmentation, Matt Mackall, (Thu Jan 10, 11:42 am)

Re: [RFC PATCH] greatly reduce SLOB external fragmentation, Christoph Lameter, (Thu Jan 10, 12:16 pm)

Re: [RFC PATCH] greatly reduce SLOB external fragmentation, Matt Mackall, (Thu Jan 10, 12:23 pm)

Re: [RFC PATCH] greatly reduce SLOB external fragmentation, Christoph Lameter, (Thu Jan 10, 12:24 pm)

Re: [RFC PATCH] greatly reduce SLOB external fragmentation, Christoph Lameter, (Thu Jan 10, 12:31 pm)

Re: [RFC PATCH] greatly reduce SLOB external fragmentation, Linus Torvalds, (Thu Jan 10, 12:41 pm)

Re: [RFC PATCH] greatly reduce SLOB external fragmentation, Matt Mackall, (Thu Jan 10, 12:44 pm)

Re: [RFC PATCH] greatly reduce SLOB external fragmentation, Christoph Lameter, (Thu Jan 10, 12:46 pm)

Re: [RFC PATCH] greatly reduce SLOB external fragmentation, Christoph Lameter, (Thu Jan 10, 12:51 pm)

Re: [RFC PATCH] greatly reduce SLOB external fragmentation, Christoph Lameter, (Thu Jan 10, 12:52 pm)

Re: [RFC PATCH] greatly reduce SLOB external fragmentation, Andi Kleen, (Thu Jan 10, 12:53 pm)

Re: [RFC PATCH] greatly reduce SLOB external fragmentation, Jörn, (Thu Jan 10, 2:25 pm)

Re: [RFC PATCH] greatly reduce SLOB external fragmentation, Pekka J Enberg, (Wed Jul 30, 2:51 pm)

Re: [RFC PATCH] greatly reduce SLOB external fragmentation, Linus Torvalds, (Wed Jul 30, 3:00 pm)

Re: [RFC PATCH] greatly reduce SLOB external fragmentation, Pekka Enberg, (Wed Jul 30, 3:22 pm)

Re: [RFC PATCH] greatly reduce SLOB external fragmentation, Linus Torvalds, (Wed Jul 30, 3:35 pm)

Re: [RFC PATCH] greatly reduce SLOB external fragmentation, Matt Mackall, (Wed Jul 30, 6:03 pm)

Re: [RFC PATCH] greatly reduce SLOB external fragmentation, Matt Mackall, (Wed Jul 30, 6:09 pm)

Re: [RFC PATCH] greatly reduce SLOB external fragmentation, Andi Kleen, (Thu Jul 31, 7:11 am)

Re: [RFC PATCH] greatly reduce SLOB external fragmentation, Christoph Lameter, (Thu Jul 31, 7:26 am)

Re: [RFC PATCH] greatly reduce SLOB external fragmentation, Christoph Lameter, (Thu Jul 31, 8:25 am)

Re: [RFC PATCH] greatly reduce SLOB external fragmentation, Matt Mackall, (Thu Jul 31, 8:38 am)

Re: [RFC PATCH] greatly reduce SLOB external fragmentation, Christoph Lameter, (Thu Jul 31, 8:42 am)

Re: [RFC PATCH] greatly reduce SLOB external fragmentation, Andi Kleen, (Thu Jul 31, 9:03 am)

Re: [RFC PATCH] greatly reduce SLOB external fragmentation, Christoph Lameter, (Thu Jul 31, 9:05 am)

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