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SubjectRe: Page fault scalability patch V18: Overview
Hi Christoph

On Tue, 01 Mar 2005, Christoph Lameter wrote:

> Is there any chance that this patchset could go into mm now? This has been
> discussed since last August....
>
> Changelog:
>
> V17->V18 Rediff against 2.6.11-rc5-bk4

Just applied this patch against 2.6.11, however with the patch applied
and all the aditional config options not set, the kernel hangs at
Freeing unused kernel memory: 240kB freed
FYI:

boot atomic prezero
OK on on
fail off on
fail off off
OK on off

> V16->V17 Do not increment page_count in do_wp_page. Performance data
> posted.
> V15->V16 of this patch: Redesign to allow full backback
> for architectures that do not supporting atomic operations.
>
> An introduction to what this patch does and a patch archive can be found on
> http://oss.sgi.com/projects/page_fault_performance. The archive also has the
> result of various performance tests (LMBench, Microbenchmark and
> kernel compiles).
>
> The basic approach in this patchset is the same as used in SGI's 2.4.X
> based kernels which have been in production use in ProPack 3 for a long time.
>
> The patchset is composed of 4 patches (and was tested against 2.6.11-rc5-bk4):
>
[SNIP]

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Darren Williams <dsw AT gelato.unsw.edu.au>
Gelato@UNSW <www.gelato.unsw.edu.au>
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