Re: [SQL] Slow Inserts Again
От | Bruce Momjian |
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Тема | Re: [SQL] Slow Inserts Again |
Дата | |
Msg-id | 199905031619.MAA20460@candle.pha.pa.us обсуждение исходный текст |
Ответ на | Re: [SQL] Slow Inserts Again (Tom Lane <tgl@sss.pgh.pa.us>) |
Ответы |
Re: [SQL] Slow Inserts Again
|
Список | pgsql-sql |
> >> Why _each_? > >> Enclose ALL statements by begin; & end; to insert ALL data > >> in SINGLE transaction: > > But the transaction boundaries wouldn't have anything to do with > Frank's real problem, which is that the insertions are getting > slower and slower. There's no good reason for that; and other > people are not reporting any comparable problems. (Considering > that we *have* been getting trouble reports for more-than-2-gig > tables, it's clear that people are putting large amounts of data > into 6.5; so it's not like Frank is stressing the system more > than it has been before.) > > Frank, what does the memory usage of the backend that's processing > this insertion look like; has it been growing steadily? I'm wondering > whether you could have a problem with poor malloc behavior, or some > such. Yes, memory use it the place to look. We have had bugs in the past that did not free memory, causing this problem. -- Bruce Momjian | http://www.op.net/~candle maillist@candle.pha.pa.us | (610) 853-3000+ If your life is a hard drive, | 830 Blythe Avenue + Christ can be your backup. | Drexel Hill, Pennsylvania19026
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