Thanks so much for your help on this. I will look at those docs and try those settings

--- In firebird-support@yahoogroups.com, Philippe Makowski <makowski@...> wrote:
>
> 2011/4/26 kasparovimnot <pconn75@...>
> >
> >
> >
> > Hmm, that's interesting. I guess, to clarify, we did have the db server running on an 8gb memory system and are trying to optimize performance by putting it on a machine with more RAM. Perhaps we will notice better performance out of the gate if the OS is indeed caching the db with available memory. How may I ask did you configure to use the ram disk for the sort files?
>
> mount /tmp as tempfs
>
>
> and you can read this :
> http://www.ibphoenix.com/resources/documents/search/doc_26
> scheduler and FS sometimes matter
>