Andreas,

> - increase page size to 16kB (gbak -> and restore with new pagesize)
> - increased buffers for firebird to use up to 4GB of ram (256kB) via gfix

With Classic server you *need* to reduce the number of cached pages -- I would 
recommend a value < 500 pages


> - switchted to async writes because we have redundancy and data security
> on hardware level (also via gfix)

Hardware redundancy and security will not protect if the hosts/OS restarts or 
Firebird abends without warning.

Forced Writes = ON is HIGHLY recommended in all production use-cases.


> After all of this didn't really seem to do much, we had to pull out the big 
> guns:

> Performance improved a bit, but still not the way we would like it to be.

You should look at the fb_lock_print details, it is possible that you are 
experience issue with the external lock manager.


Sean

  • [firebird-supp... Andreas Zeller zel...@lux-medien.com [firebird-support]
    • RE: [fire... 'Leyne, Sean' s...@broadviewsoftware.com [firebird-support]
      • Re: [... Andreas Zeller zel...@lux-medien.com [firebird-support]
        • R... 'Leyne, Sean' s...@broadviewsoftware.com [firebird-support]
          • ... Andreas Zeller zel...@lux-medien.com [firebird-support]
    • Re: [fire... Dimitry Sibiryakov s...@ibphoenix.com [firebird-support]
      • Re: [... Andreas Zeller zel...@lux-medien.com [firebird-support]
        • R... Dimitry Sibiryakov s...@ibphoenix.com [firebird-support]
          • ... Andreas Zeller zel...@lux-medien.com [firebird-support]
        • R... 'Leyne, Sean' s...@broadviewsoftware.com [firebird-support]
          • ... Andreas Zeller zel...@lux-medien.com [firebird-support]
            • ... Andreas Zeller zel...@lux-medien.com [firebird-support]

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