Horton

Re: PostgreSQL and HugePage

Greg Stark <gsstark@mit.edu>

View thread
From: Greg Stark <gsstark@mit.edu>
To: Tom Lane <tgl@sss.pgh.pa.us>
Cc: Robert Haas <robertmhaas@gmail.com>, daveg <daveg@sonic.net>, Mark Kirkwood <mark.kirkwood@catalyst.net.nz>, pgsql-hackers@postgresql.org
Date: 2010-10-20T19:28:25Z
Lists: 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