From: | Philip Warner <pjw(at)rhyme(dot)com(dot)au> |
---|---|
To: | Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
Cc: | The Hermit Hacker <scrappy(at)hub(dot)org>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
Subject: | Re: Performance monitor |
Date: | 2001-03-07 23:51:41 |
Message-ID: | 3.0.5.32.20010308105141.03197750@mail.rhyme.com.au |
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Lists: | pgsql-hackers |
At 18:05 7/03/01 -0500, Bruce Momjian wrote:
>> All in all, I do not see this as an easy task that you can whip out and
>> then release as a 7.1 patch without extensive testing. And given that,
>> I'd rather see it done with what I consider the right long-term approach,
>> rather than a dead-end hack. I think doing it in a signal handler is
>> ultimately going to be a dead-end hack.
>
>Well, the signal stuff will get me going at least.
Didn't someone say this can't be done safely - or am I missing something?
ISTM that doing the work to put things in shared memory will be much more
profitable in the long run. You have previously advocated self-tuning
algorithms for performance - a prerequisite for these will be performance
data in shared memory.
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