[Info-Ingres] Ingres on Itanium, not to good

[Laframboise André]

Either way, time is a bit of an issue for me so I'm going go try and get Ingres support to compile
a server with Karl's modifications. That should tie me over until we move to 2006.
 
I'm monitoring the FDs while the DBMS servers are under load and they reach 1024 in under
2 hours. I'd start more servers (running 8 now) but they all do the same work so that wouldn't buy much.
 
Andre

________________________________

From: info-ingres-bounces at kettleriverconsulting.com on behalf of Andi Kleen
Sent: Sun 09/12/2007 4:32 PM
To: info-ingres at kettleriverconsulting.com
Subject: Re: [Info-Ingres] Ingres on Itanium, not to good



Karl & Betty Schendel <schendel at kbcomputer.com> writes:
>
> Yeah, that's it exactly.  Ingres uses poll() on linux, but tracks
> file descriptors for itself internally using the default fd_set.
> My hack fix is a self defined fd_set,

That's not a hack -- it's the standard recommended technique.

> but we'd prefer to use
> epoll instead -- that's what MikeT is working on.

Sure you can do that and it might increase your scalability slightly
(not sure it will help all that much for something like ingres which
does a lot more with the data), but blaming Linux then for going the
more difficult way is not right.

-Andi
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