Hi!

Maybe this is your case : "Forced Writes Performance impact on #Ubuntu with ext4 no barrier"

http://www.firebirdnews.org/?p=6421

--- In firebird-support@yahoogroups.com, "aalliana" <aalliana@...> wrote:
>
> Hello,
>
> I'm trying to upgrade a box running ubuntu + firebird that has been running for a while.
>
> The old box has Ubuntu 8.04 + firebird 2.1.1 SS running on dual core hardware.
> The new box has Ubuntu 10.04 + firebird 2.1.4 SS running on a 8 core hareware.
>
> I undestand that there are too many variables involved, but is hard to maintain all systems the same to perform the tests.
>
> After performing many tests using a profiler, I arrived to the conclusion that the commits take a lot longer on the new hardware configuration. Everything is running faster but commiting takes longer.
>
> The hard disk hardware is better, a 7200 RMP SATA drive.
>
> Does anybody have any suggestions?
>
> PS: On the new hardware, I first installed firebird 2.1.4 Classic, because of lousy performance I changed it to SS.
>
> Thanks in advance.
>