RE: RE: 11g RedHat 5 and Hugepages

From: Crisler, Jon <>
Date: Thu, 14 Oct 2010 00:12:14 -0400
Message-ID: <56211FD5795F8346A0719FEBC0DB067507275FD6_at_mds3aex08.USIEXCHANGE.COM>

I would not call it poorly written: keep in mind that it runs on a RAC cluster with a combined 576 cpu's, so it might give you some idea of the size :)

-----Original Message-----
From: Greg Rahn [] Sent: Wednesday, October 13, 2010 11:14 PM To: Crisler, Jon
Subject: Re: RE: 11g RedHat 5 and Hugepages

There may be issues with MTS but no where near the issues of having an application that needs 75k db connections. This must be one poorly written application.

I can't imagine how much CPU the dispatchers would burn for that many connections.

On Wed, Oct 13, 2010 at 8:32 AM, Crisler, Jon <> wrote:
> Possibly- there are issues with MTS and they want enough headroom so that
> they can run without MTS and possibly connection pooling tuned very
> conservatively on the app host side.  On the current, undersized
> configuration, they have already seen 75,000 connections at peak periods.

Greg Rahn
Received on Wed Oct 13 2010 - 23:12:14 CDT

Original text of this message