Re: Re :Solaris Performance - Mailing list pgsql-general

From Tom Lane
Subject Re: Re :Solaris Performance
Date
Msg-id 25560.1012927683@sss.pgh.pa.us
Whole thread Raw
In response to Re :Solaris Performance  (Mark kirkwood <markir@slingshot.co.nz>)
Responses Re: Re :Solaris Performance  (Bruce Momjian <pgman@candle.pha.pa.us>)
List pgsql-general
Mark kirkwood <markir@slingshot.co.nz> writes:
> The problem area I have experienced is that queries that require a
> reasonable sort at some point of the plan (e.g have a GROUP BY) will
> consume all one 1 cpu (box had 2 of them) for a _very_ long time (e.g.
> 30 minutes - using either compiler) whereas the same query on a (single
> cpu) Intel/Linux takes about 1 minute.

[ scratches head ... ]  I didn't think there was anything particularly
system-dependent about the sorting code.  Have you tried profiling, or
anything to determine where the Solaris version is spending its time?

            regards, tom lane

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