Horton

Re: Performance monitor signal handler

Philip Warner <pjw@rhyme.com.au>

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From: Philip Warner <pjw@rhyme.com.au>
To: Alfred Perlstein <bright@wintelcom.net>
Cc: Bruce Momjian <pgman@candle.pha.pa.us>, PostgreSQL-development <pgsql-hackers@postgresql.org>
Date: 2001-03-13T14:42:18Z
Lists: pgsql-hackers 
>
>This ought to always give a consistant snapshot of the file to
>whomever opens it.
>

I think Tom has previously stated that there are technical reasons not to
do IO in signal handlers, and I have philosophical problems with
performance monitors that ask 50 backends to do file IO. I really do think
shared memory is TWTG.




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