Re: PostgreSQL and HugePage - Mailing list pgsql-hackers

From Greg Stark
Subject Re: PostgreSQL and HugePage
Date
Msg-id AANLkTinqQXg=00pLy-tdKXjnc-mfc_Hsj82v6w+TVgPg@mail.gmail.com
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In response to Re: PostgreSQL and HugePage  (Greg Stark <gsstark@mit.edu>)
Responses Re: PostgreSQL and HugePage  (Alvaro Herrera <alvherre@commandprompt.com>)
Re: PostgreSQL and HugePage  (daveg <daveg@sonic.net>)
List pgsql-hackers
On Wed, Oct 20, 2010 at 12:17 PM, Greg Stark <gsstark@mit.edu> wrote:
> I don't think it's a big cost once all the processes
> have been forked if you're reusing them beyond perhaps slightly more
> efficient cache usage.

Hm, this site claims to get a 13% win just from the reduced tlb misses
using a preload hack with Pg 8.2. That would be pretty substantial.

http://oss.linbit.com/hugetlb/


-- 
greg


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