Re: POSIX regex performance bug in 7.3 Vs. 7.2

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От Tom Lane
Тема Re: POSIX regex performance bug in 7.3 Vs. 7.2
Дата
Msg-id 12950.1044312688@sss.pgh.pa.us
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Ответ на Re: POSIX regex performance bug in 7.3 Vs. 7.2  (wade <wade@wavefire.com>)
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wade <wade@wavefire.com> writes:
> Here is the profile information.  I included a log of the session that
> generated it at the top of the gprof  output.  If there is any other info I
> can help you with, please let me know.

A four-second test isn't long enough to gather any statistically
meaningful profile info.  On most machines, gprof samples 100 times per
second, so realistically you need a minute or two of runtime to have
trustworthy numbers.

Please replicate the rows in the table by a factor of ten or twenty or
so and try again.
        regards, tom lane


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