Re: Performance problems testing with Spamassassin - Mailing list pgsql-performance

From Tom Lane
Subject Re: Performance problems testing with Spamassassin
Date
Msg-id 16614.1122646366@sss.pgh.pa.us
Whole thread Raw
In response to Re: Performance problems testing with Spamassassin  ("Luke Lonergan" <LLonergan@greenplum.com>)
Responses Re: Performance problems testing with Spamassassin
List pgsql-performance
"Luke Lonergan" <LLonergan@greenplum.com> writes:
> I guess we see the real culprit here.  Anyone surprised it's the WAL?

You have not proved that at all.

I haven't had time to look at Matthew's problem, but someone upthread
implied that it was doing a separate transaction for each word.  If so,
collapsing that to something more reasonable (say one xact per message)
would probably help a great deal.

            regards, tom lane

pgsql-performance by date:

Previous
From: Bruno Wolff III
Date:
Subject: Re: BUG #1797: Problem using Limit in a function, seqscan
Next
From: Dirk Lutzebäck
Date:
Subject: Performance problems on 4/8way Opteron (dualcore) HP DL585