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kswapd min order, slub max order [was Re: -mm merge plans for 2.6.24]

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To: Andrew Morton <akpm@...>
Cc: Chritoph Lameter <clameter@...>, Mel Gorman <mel@...>, <linux-kernel@...>, <linux-mm@...>
Date: Tuesday, October 2, 2007 - 12:06 pm

On Mon, 1 Oct 2007, Andrew Morton wrote:

I agree.  I spent a while last week bisecting down to see why my heavily
swapping loads take 30%-60% longer with -mm than mainline, and it was
here that they went bad.  Trying to keep higher orders free is costly.

On the other hand, hasn't SLUB efficiency been built on the expectation
that higher orders can be used?  And it would be a twisted shame for
high performance to be held back by some idiot's swapping load.

Hugh
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Messages in current thread:
-mm merge plans for 2.6.24, Andrew Morton, (Mon Oct 1, 5:22 pm)
new aops merge [was Re: -mm merge plans for 2.6.24], Hugh Dickins, (Tue Oct 2, 12:21 pm)
kswapd min order, slub max order [was Re: -mm merge plans fo..., Hugh Dickins, (Tue Oct 2, 12:06 pm)
x86 patches was Re: -mm merge plans for 2.6.24, Andi Kleen, (Tue Oct 2, 2:18 am)
Re: x86 patches was Re: -mm merge plans for 2.6.24, Andrew Morton, (Tue Oct 2, 2:32 am)
Re: x86 patches was Re: -mm merge plans for 2.6.24, Ingo Molnar, (Tue Oct 2, 3:37 am)
Re: x86 patches was Re: -mm merge plans for 2.6.24, Andi Kleen, (Tue Oct 2, 3:46 am)
Re: x86 patches was Re: -mm merge plans for 2.6.24, Thomas Gleixner, (Tue Oct 2, 3:58 am)
Re: x86 patches was Re: -mm merge plans for 2.6.24, Andi Kleen, (Tue Oct 2, 3:01 am)
Re: x86 patches was Re: -mm merge plans for 2.6.24, Andy Whitcroft, (Tue Oct 2, 5:26 am)
Re: x86 patches was Re: -mm merge plans for 2.6.24, Andrew Morton, (Tue Oct 2, 3:18 am)
Re: x86 patches was Re: -mm merge plans for 2.6.24, KAMEZAWA Hiroyuki, (Tue Oct 2, 3:36 am)
Re: x86 patches was Re: -mm merge plans for 2.6.24, Christoph Lameter, (Tue Oct 2, 2:16 pm)
Re: x86 patches was Re: -mm merge plans for 2.6.24, Nish Aravamudan, (Tue Oct 2, 12:40 pm)
Re: x86 patches was Re: -mm merge plans for 2.6.24, Andrew Morton, (Tue Oct 2, 3:43 am)
Re: x86 patches was Re: -mm merge plans for 2.6.24, KAMEZAWA Hiroyuki, (Tue Oct 2, 4:16 am)
Re: x86 patches was Re: -mm merge plans for 2.6.24, Christoph Lameter, (Tue Oct 2, 2:18 pm)
Re: x86 patches was Re: -mm merge plans for 2.6.24, Yasunori Goto, (Tue Oct 2, 6:48 am)
Re: x86 patches was Re: -mm merge plans for 2.6.24, Lee Schermerhorn, (Tue Oct 2, 1:25 pm)
Re: x86 patches was Re: -mm merge plans for 2.6.24, Lee Schermerhorn, (Tue Oct 2, 1:17 pm)
Re: x86 patches was Re: -mm merge plans for 2.6.24, Matt Mackall, (Tue Oct 2, 3:55 am)
Re: x86 patches was Re: -mm merge plans for 2.6.24, Andi Kleen, (Tue Oct 2, 3:59 am)
Re: -mm merge plans for 2.6.24, Pekka Enberg, (Tue Oct 2, 12:12 pm)
v4l-stk11xx* [Was: -mm merge plans for 2.6.24], Jiri Slaby, (Tue Oct 2, 3:59 am)
writeback fixes, Fengguang Wu, (Tue Oct 2, 4:39 am)
Re: -mm merge plans for 2.6.24, Borislav Petkov, (Sat Oct 13, 4:44 am)
Re: -mm merge plans for 2.6.24, Andrew Morton, (Sat Oct 13, 4:52 am)
Re: -mm merge plans for 2.6.24, Borislav Petkov, (Sat Oct 13, 7:45 am)
r/o bind mounts, was Re: -mm merge plans for 2.6.24, Christoph Hellwig, (Tue Oct 9, 5:19 am)
Re: remove zero_page (was Re: -mm merge plans for 2.6.24), Linus Torvalds, (Wed Oct 3, 11:21 am)
Re: remove zero_page (was Re: -mm merge plans for 2.6.24), Linus Torvalds, (Tue Oct 9, 10:52 am)
Re: remove zero_page (was Re: -mm merge plans for 2.6.24), Linus Torvalds, (Tue Oct 9, 10:22 pm)
Re: remove zero_page (was Re: -mm merge plans for 2.6.24), Hugh Dickins, (Wed Oct 10, 12:06 am)
Re: remove zero_page (was Re: -mm merge plans for 2.6.24), Linus Torvalds, (Wed Oct 10, 1:20 am)
Re: remove zero_page (was Re: -mm merge plans for 2.6.24), Linus Torvalds, (Wed Oct 10, 11:04 am)
Re: remove zero_page (was Re: -mm merge plans for 2.6.24), Linus Torvalds, (Tue Oct 9, 11:06 pm)
wibbling over the cpuset shed domain connnection, Paul Jackson, (Mon Oct 1, 5:34 pm)
Re: wibbling over the cpuset shed domain connnection, Nick Piggin, (Tue Oct 2, 8:36 am)
Re: wibbling over the cpuset shed domain connnection, Paul Jackson, (Wed Oct 3, 1:21 am)
Re: wibbling over the cpuset shed domain connnection, Nick Piggin, (Tue Oct 2, 9:12 am)
Re: wibbling over the cpuset shed domain connnection, Paul Jackson, (Wed Oct 3, 3:00 am)
Re: wibbling over the cpuset shed domain connnection, Andrew Morton, (Wed Oct 3, 6:57 am)
per BDI dirty limit (was Re: -mm merge plans for 2.6.24), Peter Zijlstra, (Tue Oct 2, 4:17 am)
Re: per BDI dirty limit (was Re: -mm merge plans for 2.6.24), Martin Knoblauch, (Wed Oct 3, 7:00 am)
Re: per BDI dirty limit (was Re: -mm merge plans for 2.6.24), Peter Zijlstra, (Fri Oct 26, 10:48 am)
Re: per BDI dirty limit (was Re: -mm merge plans for 2.6.24), Trond Myklebust, (Fri Oct 26, 12:37 pm)
Re: per BDI dirty limit (was Re: -mm merge plans for 2.6.24), Peter Zijlstra, (Fri Dec 14, 10:50 am)
Re: per BDI dirty limit (was Re: -mm merge plans for 2.6.24), Miklos Szeredi, (Fri Dec 14, 11:14 am)
Re: per BDI dirty limit (was Re: -mm merge plans for 2.6.24), Peter Zijlstra, (Fri Dec 14, 11:54 am)
Re: per BDI dirty limit (was Re: -mm merge plans for 2.6.24), Miklos Szeredi, (Fri Oct 26, 11:06 am)
Re: per BDI dirty limit (was Re: -mm merge plans for 2.6.24), Peter Zijlstra, (Fri Oct 26, 11:22 am)
Re: per BDI dirty limit (was Re: -mm merge plans for 2.6.24), Peter Zijlstra, (Fri Oct 26, 11:33 am)
[PATCH] mm: sysfs: expose the BDI object in sysfs, Peter Zijlstra, (Fri Nov 2, 10:59 am)
Re: [PATCH] mm: sysfs: expose the BDI object in sysfs, Kay Sievers, (Fri Nov 2, 11:13 am)
Re: per BDI dirty limit (was Re: -mm merge plans for 2.6.24), Peter Zijlstra, (Sat Oct 27, 12:07 pm)
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