Subject Re: [firebird-support] Tuning Firebird Server for Optimal Memory Usage
Author Niben M Singh
Thanks I have tried that. I am also wondering if other parameters like


can be tweaked?

--- On Tue, 7/29/08, Milan Babuskov <milanb@...> wrote:
From: Milan Babuskov <milanb@...>
Subject: Re: [firebird-support] Tuning Firebird Server for Optimal Memory Usage
Date: Tuesday, July 29, 2008, 10:04 AM

Niben M Singh wrote:

> have 1GB memory in my PC with Linux kernel. I want to allocate like 400MB

> dedicated to my Firebird database. How can I modify firebird.conf (or

> operating system) to do so? Right now Firebird is not using much of RAM

> seems like.


> I am hoping with more caching in memory the performance will be better.

You can (as Anderson explained) but you probably don't want to. Linux

caches the filesystem very well - uses 99% RAM all the time to cache the

filesystem. So, if the machine has enough free RAM and is dedicated to

the database system, it most probably has the entire FB database file in

the filesystem cache, and fetching from there should not be

significantly slower than fetching from FB page cache.

Of course, you can play with it and see what happens. Just make sure you

don't give too much to Firebird and force rest of the system to swap to

disk as that would be really slow.


Milan Babuskov



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