Re: [RFC 0/8] Variable Order Page Cache

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To: Andi Kleen <ak@...>

Cc: <linux-kernel@...>, Peter Zijlstra <a.p.zijlstra@...>, Nick Piggin <nickpiggin@...>, Paul Jackson <pj@...>, Dave Chinner <dgc@...>

Subject: Re: [RFC 0/8] Variable Order Page Cache

Date: Thursday, April 19, 2007 - 3:15 pm

On Thu, 19 Apr 2007, Andi Kleen wrote:

quoted text> > We likely need actual defragmentation support.
> 
> To be honest it looks quite pointless before this is solved. So far it is
> not even clear if it is feasible to solve it.

We have done order 1 / 2 allocations for some limited purposes for some 
time (task struct etc). But you are right: We need to figure out how high 
we can go with Mel's antifrag and defrag work.
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Messages in current thread:

[RFC 0/8] Variable Order Page Cache, Christoph Lameter, (Thu Apr 19, 12:35 pm)

Re: [RFC 0/8] Variable Order Page Cache, Mel Gorman, (Fri Apr 20, 10:14 am)

Re: [RFC 0/8] Variable Order Page Cache, Christoph Lameter, (Fri Apr 20, 12:23 pm)

Re: [RFC 0/8] Variable Order Page Cache, William Lee Irwin III, (Fri Apr 20, 12:47 am)

Re: [RFC 0/8] Variable Order Page Cache, David Chinner, (Fri Apr 20, 4:42 am)

Re: [RFC 0/8] Variable Order Page Cache, Christoph Lameter, (Fri Apr 20, 1:27 am)

Re: [RFC 0/8] Variable Order Page Cache, William Lee Irwin III, (Fri Apr 20, 2:22 am)

Re: [RFC 0/8] Variable Order Page Cache, Maxim Levitsky, (Thu Apr 19, 7:58 pm)

Re: [RFC 0/8] Variable Order Page Cache, Christoph Lameter, (Thu Apr 19, 9:15 pm)

Re: [RFC 0/8] Variable Order Page Cache, David Chinner, (Thu Apr 19, 6:42 pm)

Re: [RFC 0/8] Variable Order Page Cache, Jens Axboe, (Fri Apr 20, 2:32 am)

Re: [RFC 0/8] Variable Order Page Cache, David Chinner, (Fri Apr 20, 3:48 am)

Re: [RFC 0/8] Variable Order Page Cache, Andrew Morton, (Sat Apr 21, 6:18 pm)

Re: [RFC 0/8] Variable Order Page Cache, Christoph Lameter, (Thu Apr 19, 9:14 pm)

Re: [RFC 0/8] Variable Order Page Cache, Andi Kleen, (Thu Apr 19, 3:11 pm)

Re: [RFC 0/8] Variable Order Page Cache, Mel Gorman, (Fri Apr 20, 10:37 am)

Re: [RFC 0/8] Variable Order Page Cache, Christoph Lameter, (Thu Apr 19, 3:15 pm)

Re: [RFC 0/8] Variable Order Page Cache, Badari Pulavarty, (Thu Apr 19, 3:09 pm)

Re: [RFC 0/8] Variable Order Page Cache, Christoph Lameter, (Thu Apr 19, 3:12 pm)

[RFC 8/8] Add some debug output, Christoph Lameter, (Thu Apr 19, 12:35 pm)

[RFC 5/8] Enhance generic_read/write to support higher order..., Christoph Lameter, (Thu Apr 19, 12:35 pm)

[RFC 4/8] Enhance fallback functions in libs to support high..., Christoph Lameter, (Thu Apr 19, 12:35 pm)

Re: [RFC 4/8] Enhance fallback functions in libs to support ..., Mel Gorman, (Fri Apr 20, 7:05 am)

Re: [RFC 4/8] Enhance fallback functions in libs to support ..., Dave Kleikamp, (Fri Apr 20, 2:50 pm)

Re: [RFC 4/8] Enhance fallback functions in libs to support ..., Christoph Lameter, (Fri Apr 20, 3:10 pm)

Re: [RFC 4/8] Enhance fallback functions in libs to support ..., Matt Mackall, (Tue Apr 24, 7:00 pm)

Re: [RFC 4/8] Enhance fallback functions in libs to support ..., Dave Kleikamp, (Fri Apr 20, 3:27 pm)

Re: [RFC 4/8] Enhance fallback functions in libs to support ..., Adam Litke, (Thu Apr 19, 2:48 pm)

Re: [RFC 4/8] Enhance fallback functions in libs to support ..., Christoph Lameter, (Thu Apr 19, 3:10 pm)

Re: [RFC 4/8] Enhance fallback functions in libs to support ..., Jens Axboe, (Fri Apr 20, 4:21 am)

Re: [RFC 4/8] Enhance fallback functions in libs to support ..., Christoph Lameter, (Fri Apr 20, 12:01 pm)

Re: [RFC 4/8] Enhance fallback functions in libs to support ..., Jens Axboe, (Fri Apr 20, 12:51 pm)

Re: [RFC 4/8] Enhance fallback functions in libs to support ..., David Chinner, (Thu Apr 19, 6:50 pm)

Re: [RFC 4/8] Enhance fallback functions in libs to support ..., Christoph Lameter, (Thu Apr 19, 9:15 pm)

[RFC 3/8] Flushing and zeroing higher order page cache pages, Christoph Lameter, (Thu Apr 19, 12:35 pm)

Re: [RFC 3/8] Flushing and zeroing higher order page cache p..., Mel Gorman, (Fri Apr 20, 7:02 am)

Re: [RFC 3/8] Flushing and zeroing higher order page cache p..., Christoph Lameter, (Fri Apr 20, 12:15 pm)

Re: [RFC 3/8] Flushing and zeroing higher order page cache p..., William Lee Irwin III, (Fri Apr 20, 12:51 pm)

[RFC 2/8] Basic allocation for higher order page cache pages, Christoph Lameter, (Thu Apr 19, 12:35 pm)

Re: [RFC 2/8] Basic allocation for higher order page cache p..., Mel Gorman, (Fri Apr 20, 6:55 am)

[RFC 6/8] Account for pages in the page cache in terms of ba..., Christoph Lameter, (Thu Apr 19, 12:35 pm)

Re: [RFC 6/8] Account for pages in the page cache in terms o..., Nish Aravamudan, (Thu Apr 19, 1:45 pm)

Re: [RFC 6/8] Account for pages in the page cache in terms o..., Christoph Lameter, (Thu Apr 19, 1:52 pm)

Re: [RFC 6/8] Account for pages in the page cache in terms o..., Avi Kivity, (Thu Apr 19, 1:54 pm)

[RFC 7/8] Enhance ramfs to support higher order pages, Christoph Lameter, (Thu Apr 19, 12:35 pm)

Re: [RFC 7/8] Enhance ramfs to support higher order pages, Mel Gorman, (Fri Apr 20, 9:42 am)

Re: [RFC 7/8] Enhance ramfs to support higher order pages, Christoph Lameter, (Fri Apr 20, 12:20 pm)

Re: [RFC 7/8] Enhance ramfs to support higher order pages, William Lee Irwin III, (Fri Apr 20, 10:47 am)

Re: [RFC 7/8] Enhance ramfs to support higher order pages, Christoph Lameter, (Fri Apr 20, 12:30 pm)

Re: [RFC 7/8] Enhance ramfs to support higher order pages, William Lee Irwin III, (Fri Apr 20, 1:11 pm)

Re: [RFC 7/8] Enhance ramfs to support higher order pages, Christoph Lameter, (Fri Apr 20, 1:15 pm)

Re: [RFC 7/8] Enhance ramfs to support higher order pages, William Lee Irwin III, (Fri Apr 20, 1:19 pm)

Re: [RFC 7/8] Enhance ramfs to support higher order pages, Christoph Lameter, (Fri Apr 20, 2:02 pm)

Re: [RFC 7/8] Enhance ramfs to support higher order pages, Christoph Lameter, (Fri Apr 20, 2:01 pm)

Re: [RFC 7/8] Enhance ramfs to support higher order pages, Christoph Lameter, (Fri Apr 20, 1:59 pm)

Re: [RFC 7/8] Enhance ramfs to support higher order pages, Christoph Lameter, (Fri Apr 20, 1:57 pm)

Re: [RFC 7/8] Enhance ramfs to support higher order pages, William Lee Irwin III, (Fri Apr 20, 3:21 pm)

[RFC 1/8] Add order field to address_space struct, Christoph Lameter, (Thu Apr 19, 12:35 pm)

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