Re: MultiXacts & WAL
| От | Josh Berkus |
|---|---|
| Тема | Re: MultiXacts & WAL |
| Дата | |
| Msg-id | 200606171222.41942.josh@agliodbs.com обсуждение исходный текст |
| Ответ на | Re: MultiXacts & WAL (paolo romano <paolo.romano@yahoo.it>) |
| Ответы |
Re: MultiXacts & WAL
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| Список | pgsql-hackers |
Tom, Paolo, > Yeah, it's difficult to believe that multixact stuff could form a > noticeable fraction of the total WAL load, except perhaps under really > pathological circumstances, because the code just isn't supposed to be > exercised often. So I don't think this is worth pursuing. Paolo's free > to try to prove the opposite of course ... but I'd want to see numbers > not speculation. I would like to see some checking of this, though. Currently I'm doing testing of PostgreSQL under very large numbers of connections (2000+) and am finding that there's a huge volume of xlog output ... far more than comparable RDBMSes. So I think we are logging stuff we don't really have to. -- Josh Berkus PostgreSQL @ Sun San Francisco
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