Re: Report: Linux huge pages with Postgres

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От Simon Riggs
Тема Re: Report: Linux huge pages with Postgres
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Msg-id 1290963217.4634.190.camel@ebony
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Ответ на Report: Linux huge pages with Postgres  (Tom Lane <tgl@sss.pgh.pa.us>)
Ответы Re: Report: Linux huge pages with Postgres  (Tom Lane <tgl@sss.pgh.pa.us>)
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On Sat, 2010-11-27 at 14:27 -0500, Tom Lane wrote:

> This is discouraging; it certainly doesn't make me want to expend the
> effort to develop a production patch.

Perhaps.

Why do this only for shared memory? Surely the majority of memory
accesses are to private memory, so being able to allocate private memory
in a single huge page would be better for avoiding TLB cache misses.

-- Simon Riggs           http://www.2ndQuadrant.com/books/PostgreSQL Development, 24x7 Support, Training and Services



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