Re: Avoiding repeated snapshot computation
| От | Andres Freund |
|---|---|
| Тема | Re: Avoiding repeated snapshot computation |
| Дата | |
| Msg-id | 201111262142.13130.andres@anarazel.de обсуждение |
| Ответ на | Avoiding repeated snapshot computation (Pavan Deolasee <pavan.deolasee@gmail.com>) |
| Ответы |
Re: Avoiding repeated snapshot computation
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| Список | pgsql-hackers |
Hi, On Saturday, November 26, 2011 04:52:50 PM Pavan Deolasee wrote: > I think now that we have reduced the run time of the function itself, > we should now try to reduce the number of times the function is > called. Robert proposed a way to reduce the number of calls per > transaction. I think we can go one more step further and reduce the > number for across the transactions. You could also try if it makes a difference reducing SnapshotData to one instead of two cachelines. The data itself fits into one without problems. Trivial patch attached. Generally I think we should check that for most of the more commonly used strutures, we have many with too much padding. Andres
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