Subject | Re: [firebird-support] Re: performance loss after rollbacks |
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Author | Ann W. Harrison |
Post date | 2006-02-13T16:30:17Z |
kaczy27 wrote:
even without the backup/restore? Set statistics is an on-line, low-cost
operation. Can you use it periodically? A backup restore is an
off-line, high-cost operation and I would not recommend that as a
solution to a live application problem unless there were no alternative.
Regards,
Ann
>Let me see if I understand. Everything is fine if you set statistics,
> I am having four machines here, half of which are linux. I can change,
> the system, my clients won't, so that's out of question, secondary on
> a fresh database (after restore or after all index statistics
> recomputed) the tests go like breeze, the problems appear during third
> or fourth run. The size is still small, but the indices after 500
> rollbacks are slowing the base to the crawl.
>
even without the backup/restore? Set statistics is an on-line, low-cost
operation. Can you use it periodically? A backup restore is an
off-line, high-cost operation and I would not recommend that as a
solution to a live application problem unless there were no alternative.
Regards,
Ann