Re: Speed of different procedural language

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От Steinar H. Gunderson
Тема Re: Speed of different procedural language
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Msg-id 20051222010823.GA6103@uio.no
обсуждение исходный текст
Ответ на Re: Speed of different procedural language  (Michael Fuhr <mike@fuhr.org>)
Ответы Re: Speed of different procedural language  (Michael Fuhr <mike@fuhr.org>)
Список pgsql-performance
On Wed, Dec 21, 2005 at 03:10:28PM -0700, Michael Fuhr wrote:
>> That's funny, my biggest problems with PL/PgSQL have been (among others)
>> exactly with large result sets...
> Out of curiosity, do you have a simple test case?  I'd be interested
> in seeing what you're doing in PL/pgSQL that's contradicting what
> I'm seeing.

I'm not sure if I have the code anymore (it was under 7.4 or 8.0), but it was
largely scanning through ~2 million rows once, noting differences from the
previous rows as it went.

In that case, I didn't benchmark against any of the other PL/* languages, but
it was pretty clear that even on a pretty speedy Opteron, it was CPU bound,
which it really shouldn't have been.

/* Steinar */
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