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Re: LDC - Load Distributed Checkpoints with PG8.3b2 on Solaris - Mailing list pgsql-hackers

From Tom Lane
Subject Re: LDC - Load Distributed Checkpoints with PG8.3b2 on Solaris
Date
Msg-id 17597.1194971849@sss.pgh.pa.us
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In response to LDC - Load Distributed Checkpoints with PG8.3b2 on Solaris  ("Jignesh K. Shah" <J.K.Shah@Sun.COM>)
Responses Re: LDC - Load Distributed Checkpoints with PG8.3b2 on Solaris  ("Jignesh K. Shah" <J.K.Shah@Sun.COM>)
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"Jignesh K. Shah" <J.K.Shah@Sun.COM> writes:
> I am running tests with PG8.3b2 on Solaris 10 8/07 and I still see IO 
> flood when checkpoint happens.

I am thinking that you are probably trying to test that by issuing
manual CHECKPOINT commands.  A manual checkpoint is still done at full
speed, as are shutdown checkpoints.  You need to study the behavior of
automatic (background) checkpoints, instead.
        regards, tom lane

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