Re: Mainline kernel OLTP performance update

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To: Zhang, Yanmin <yanmin_zhang@...>

Cc: Matthew Wilcox <matthew@...>, Nick Piggin <nickpiggin@...>, Andrew Morton <akpm@...>, <netdev@...>, <sfr@...>, <matthew.r.wilcox@...>, <chinang.ma@...>, <linux-kernel@...>, <sharad.c.tripathi@...>, <arjan@...>, <suresh.b.siddha@...>, <harita.chilukuri@...>, <douglas.w.styner@...>, <peter.xihong.wang@...>, <hubert.nueckel@...>, <chris.mason@...>, <srostedt@...>, <linux-scsi@...>, <andrew.vasquez@...>, <anirban.chakraborty@...>

Subject: Re: Mainline kernel OLTP performance update

Date: Friday, January 16, 2009 - 6:20 am

"Zhang, Yanmin" <yanmin_zhang@linux.intel.com> writes:

quoted text> 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some of the heuristics for hot/cold pages are quite outdated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.
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Messages in current thread:

Re: Mainline kernel OLTP performance update, Nick Piggin, (Fri Jan 16, 2:46 am)

Re: Mainline kernel OLTP performance update, Rick Jones, (Fri Jan 16, 2:11 pm)

Re: Mainline kernel OLTP performance update, Nick Piggin, (Mon Jan 19, 3:43 am)

Re: Mainline kernel OLTP performance update, Rick Jones, (Mon Jan 19, 6:19 pm)

Re: Mainline kernel OLTP performance update, Andrew Morton, (Fri Jan 16, 3:00 am)

Re: Mainline kernel OLTP performance update, Nick Piggin, (Fri Jan 16, 4:59 am)

Re: Mainline kernel OLTP performance update, Nick Piggin, (Fri Jan 16, 3:25 am)

Re: Mainline kernel OLTP performance update, Matthew Wilcox, (Fri Jan 16, 2:55 am)

Re: Mainline kernel OLTP performance update, Zhang, Yanmin, (Fri Jan 16, 3:53 am)

Re: Mainline kernel OLTP performance update, Andi Kleen, (Fri Jan 16, 6:20 am)

Re: Mainline kernel OLTP performance update, Zhang, Yanmin, (Tue Jan 20, 1:16 am)

Re: Mainline kernel OLTP performance update, Christoph Lameter, (Wed Jan 21, 7:58 pm)

Re: Mainline kernel OLTP performance update, Zhang, Yanmin, (Thu Jan 22, 4:36 am)

Re: Mainline kernel OLTP performance update, Pekka Enberg, (Thu Jan 22, 5:15 am)

Re: Mainline kernel OLTP performance update, Zhang, Yanmin, (Thu Jan 22, 5:28 am)

Re: Mainline kernel OLTP performance update, Pekka Enberg, (Thu Jan 22, 5:47 am)

Re: Mainline kernel OLTP performance update, Zhang, Yanmin, (Thu Jan 22, 11:02 pm)

Re: Mainline kernel OLTP performance update, Nick Piggin, (Fri Jan 23, 4:33 am)

Re: Mainline kernel OLTP performance update, Zhang, Yanmin, (Fri Jan 23, 5:02 am)

care and feeding of netperf (Re: Mainline kernel OLTP perfor..., Rick Jones, (Fri Jan 23, 2:40 pm)

Re: care and feeding of netperf (Re: Mainline kernel OLTP pe..., Zhang, Yanmin, (Fri Jan 23, 11:03 pm)

Re: care and feeding of netperf (Re: Mainline kernel OLTP pe..., Rick Jones, (Mon Jan 26, 2:26 pm)

Re: care and feeding of netperf (Re: Mainline kernel OLTP pe..., Grant Grundler, (Fri Jan 23, 2:51 pm)

Re: Mainline kernel OLTP performance update, Pekka Enberg, (Fri Jan 23, 2:52 am)

Re: Mainline kernel OLTP performance update, Pekka Enberg, (Fri Jan 23, 4:06 am)

Re: Mainline kernel OLTP performance update, Zhang, Yanmin, (Fri Jan 23, 4:30 am)

Re: Mainline kernel OLTP performance update, Pekka Enberg, (Fri Jan 23, 5:46 am)

Re: Mainline kernel OLTP performance update, Christoph Lameter, (Fri Jan 23, 11:22 am)

Re: Mainline kernel OLTP performance update, Zhang, Yanmin, (Fri Jan 23, 10:55 pm)

Re: Mainline kernel OLTP performance update, Christoph Lameter, (Mon Jan 26, 1:36 pm)

Re: Mainline kernel OLTP performance update, Zhang, Yanmin, (Sat Jan 31, 10:52 pm)

Re: Mainline kernel OLTP performance update, Pekka Enberg, (Sat Jan 24, 3:36 am)

Re: Mainline kernel OLTP performance update, Zhang, Yanmin, (Thu Feb 12, 1:22 am)

Re: Mainline kernel OLTP performance update, Zhang, Yanmin, (Thu Feb 12, 1:47 am)

Re: Mainline kernel OLTP performance update, Pekka Enberg, (Thu Feb 12, 12:03 pm)

Re: Mainline kernel OLTP performance update, Christoph Lameter, (Thu Feb 12, 11:25 am)

Re: Mainline kernel OLTP performance update, Pekka Enberg, (Thu Feb 12, 12:07 pm)

Re: Mainline kernel OLTP performance update, Pekka Enberg, (Fri Jan 23, 11:31 am)

Re: Mainline kernel OLTP performance update, Christoph Lameter, (Fri Jan 23, 11:55 am)

Re: Mainline kernel OLTP performance update, Pekka Enberg, (Fri Jan 23, 12:01 pm)

Re: Mainline kernel OLTP performance update, Pekka Enberg, (Fri Jan 23, 4:40 am)

Re: Mainline kernel OLTP performance update, Nick Piggin, (Fri Jan 16, 3:06 am)

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