From: Andi Kleen <andi@firstfloor•org>
To: "Zhang, Yanmin" <yanmin_zhang@linux•intel.com>
Cc: Matthew Wilcox <matthew@wil•cx>,
Nick Piggin <nickpiggin@yahoo•com.au>,
Andrew Morton <akpm@linux-foundation•org>,
netdev@vger•kernel.org, sfr@canb•auug.org.au,
matthew.r.wilcox@intel•com, chinang.ma@intel•com,
linux-kernel@vger•kernel.org, sharad.c.tripathi@intel•com,
arjan@linux•intel.com, suresh.b.siddha@intel•com,
harita.chilukuri@intel•com, douglas.w.styner@intel•com,
peter.xihong.wang@intel•com, hubert.nueckel@intel•com,
chris.mason@oracle•com, srostedt@redhat•com,
linux-scsi@vger•kernel.org, andrew.vasquez@qlogic•com,
anirban.chakraborty@qlogic•com
Subject: Re: Mainline kernel OLTP performance update
Date: Fri, 16 Jan 2009 11:20:32 +0100 [thread overview]
Message-ID: <87sknjeemn.fsf@basil.nowhere.org> (raw)
In-Reply-To: <1232092430.11429.52.camel@ymzhang> (Yanmin Zhang's message of "Fri, 16 Jan 2009 15:53:50 +0800")
"Zhang, Yanmin" <yanmin_zhang@linux•intel.com> writes:
> I think that's because SLQB
> doesn't pass through big object allocation to page allocator.
> netperf UDP-U-1k has less improvement with SLQB.
That sounds like just the page allocator needs to be improved.
That would help everyone. We talked a bit about this earlier,
some of the heuristics for hot/cold pages are quite outdated
and have been tuned for obsolete machines and also its fast path
is quite long. Unfortunately no code currently.
-Andi
--
ak@linux•intel.com -- Speaking for myself only.
next prev parent reply other threads:[~2009-01-16 10:20 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <BC02C49EEB98354DBA7F5DD76F2A9E800317003CB0@azsmsx501.amr.corp.intel.com>
[not found] ` <200901161503.13730.nickpiggin@yahoo.com.au>
[not found] ` <20090115201210.ca1a9542.akpm@linux-foundation.org>
2009-01-16 6:46 ` Mainline kernel OLTP performance update Nick Piggin
2009-01-16 6:55 ` Matthew Wilcox
2009-01-16 7:06 ` Nick Piggin
2009-01-16 7:53 ` Zhang, Yanmin
2009-01-16 10:20 ` Andi Kleen [this message]
2009-01-20 5:16 ` Zhang, Yanmin
2009-01-21 23:58 ` Christoph Lameter
2009-01-22 8:36 ` Zhang, Yanmin
2009-01-22 9:15 ` Pekka Enberg
2009-01-22 9:28 ` Zhang, Yanmin
2009-01-22 9:47 ` Pekka Enberg
2009-01-23 3:02 ` Zhang, Yanmin
2009-01-23 6:52 ` Pekka Enberg
2009-01-23 8:06 ` Pekka Enberg
2009-01-23 8:30 ` Zhang, Yanmin
2009-01-23 8:40 ` Pekka Enberg
2009-01-23 9:46 ` Pekka Enberg
2009-01-23 15:22 ` Christoph Lameter
2009-01-23 15:31 ` Pekka Enberg
2009-01-23 15:55 ` Christoph Lameter
2009-01-23 16:01 ` Pekka Enberg
2009-01-24 2:55 ` Zhang, Yanmin
2009-01-24 7:36 ` Pekka Enberg
2009-02-12 5:22 ` Zhang, Yanmin
2009-02-12 5:47 ` Zhang, Yanmin
2009-02-12 15:25 ` Christoph Lameter
2009-02-12 16:07 ` Pekka Enberg
2009-02-12 16:03 ` Pekka Enberg
2009-01-26 17:36 ` Christoph Lameter
2009-02-01 2:52 ` Zhang, Yanmin
2009-01-23 8:33 ` Nick Piggin
2009-01-23 9:02 ` Zhang, Yanmin
2009-01-23 18:40 ` care and feeding of netperf (Re: Mainline kernel OLTP performance update) Rick Jones
2009-01-23 18:51 ` Grant Grundler
2009-01-24 3:03 ` Zhang, Yanmin
2009-01-26 18:26 ` Rick Jones
2009-01-16 7:00 ` Mainline kernel OLTP performance update Andrew Morton
2009-01-16 7:25 ` Nick Piggin
2009-01-16 8:59 ` Nick Piggin
2009-01-16 18:11 ` Rick Jones
2009-01-19 7:43 ` Nick Piggin
2009-01-19 22:19 ` Rick Jones
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