Re: Sluggish inserts/updates ?
От | Hannu Krosing |
---|---|
Тема | Re: Sluggish inserts/updates ? |
Дата | |
Msg-id | 3A81CBD4.E444FF8D@tm.ee обсуждение исходный текст |
Ответ на | Sluggish inserts/updates ? (Adam Haberlach <adam@newsnipple.com>) |
Список | pgsql-hackers |
Adam Haberlach wrote: > > I've got a system in which a row is being created by one process, > a notify is sent, and another process finds and then deletes the > row. This whole interchange seems to be taking about a second, which > seems oddly slow. If you do it enough times without vacuum, the table grows quite big, even though it may look empty... > As far as I know, I have the fsync-on-anything > turned off (*). > > I'm mainly wondering if I should index/not index the key of the > table, and if I should blame the hardware or Postgres? Index would very likely help. (BTW, the best way to find out is to try it - you can always drop it later ;) > The hard > drive on the R&D server is pretty slow, although the CPU is pretty > dang fast. I could also blame the notification system but that > shouldn't be a problem, right? How do you read the notify ? ---------- Hannu
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