| From: | Philip Warner <pjw(at)rhyme(dot)com(dot)au> |
|---|---|
| To: | Alfred Perlstein <bright(at)wintelcom(dot)net> |
| Cc: | Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Performance monitor signal handler |
| Date: | 2001-03-13 14:42:18 |
| Message-ID: | 3.0.5.32.20010314014218.028acc20@mail.rhyme.com.au |
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| 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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