Subject Re: [firebird-support] Re: Poor Performance
Author Ann W. Harrison
berniebialt wrote:
> Ann:
>
> Thanks for respond to me. I ran gstat and here are some of the
> details that I see:
>
> Oldest Transaction 434143
> Oldest Active 446334
> Oldest Snapshot 446334
> Next Transaction 446335
>
> Is the issue the difference between Oldest Transaction and Next
> Transaction?

No, the problem would be between the oldest active and the next. In
this case, there's only a single transaction running. To analyze the
problem, you're going to have to run gstat -h when the performance is bad.

> I noticed it is a differnce of over 12000. If this is
> the problem, what would cause this to occur? and how could I keep
> this from happening going forward.
>

The oldest transaction - also called the oldest interesting transaction
- is the oldest transaction in any state other than committed. Sweep
moves that number along. 12000 is not very bad.

Regards,


Ann