Re: [PERFORM] A Better External Sort? - Mailing list pgsql-hackers

From Jeffrey W. Baker
Subject Re: [PERFORM] A Better External Sort?
Date
Msg-id 1128017741.11474.13.camel@noodles
Whole thread Raw
In response to Re: [PERFORM] A Better External Sort?  (Josh Berkus <josh@agliodbs.com>)
Responses Re: [PERFORM] A Better External Sort?
List pgsql-hackers
On Thu, 2005-09-29 at 11:03 -0700, Josh Berkus wrote:
> Jeff,
> 
> > Josh, do you happen to know how many passes are needed in the multiphase
> > merge on your 60GB table?
> 
> No, any idea how to test that?

I would just run it under the profiler and see how many times
beginmerge() is called.

-jwb



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