15.03.2012 21:51, jsbriantes wrote:

>
> As test says: firebird 2.5 on linux is very slow, and slower than 1.5.6.
>
> I can't belive it. Perhaps I have something wrong in my configuration? I
> don't change firebird.conf parameters.
>
> Where could be the problem?

Are Forced Writes turned ON or OFF for the v2.5 database? If it's ON,
this explains the difference.

v1.5 had FW=ON not working properly, so it was actually OFF. And IIRC
the default setting was OFF as well. See here:
http://tracker.firebirdsql.org/browse/CORE-1476

v2.5 has FW=ON by default and it's obviously slower than FW=OFF, no
surprises here.


Dmitry