From: Tom Lane <tgl@sss.pgh.pa.us>
To: Gregory Stark <stark@enterprisedb.com>
Cc: Alvaro Herrera <alvherre@commandprompt.com>
Cc: Josh Berkus <josh@agliodbs.com>
Cc: Heikki Linnakangas <heikki@enterprisedb.com>
Cc: pgsql-hackers@postgresql.org, "Robert Treat" <xzilla@users.sourceforge.net>
Cc: Peter Eisentraut <peter_e@gmx.net>
Cc: Greg Smith <gsmith@gregsmith.com>
Cc: Andreas Pflug <pgadmin@pse-consulting.de>
Cc: Decibel! <decibel@decibel.org>
Subject: Re: Overhauling GUCS
Date: Wed, 11 Jun 2008 21:02:20 -0400
Message-ID: <25597.1213232540@sss.pgh.pa.us> (raw)
In-Reply-To: <87od674hy6.fsf@oxford.xeocode.com>
References: <48409D1E.3070208@agliodbs.com>
<200806061624.29105.xzilla@users.sourceforge.net>
<200806100937.38124.josh@agliodbs.com>
<200806100949.17918.josh@agliodbs.com>
<21875.1213122184@sss.pgh.pa.us>
<484F7613.5070202@enterprisedb.com>
<484FFF06.9010307@agliodbs.com>
<20080611163847.GN5352@alvh.no-ip.org>
<11913.1213218315@sss.pgh.pa.us>
<87od674hy6.fsf@oxford.xeocode.com>
Gregory Stark <stark@enterprisedb.com> writes:
> "Tom Lane" <tgl@sss.pgh.pa.us> writes:
>> I agree with that for pg_clog and friends, but I'm much more leery of
>> folding WAL into the same framework.
> Well it may still be worthwhile stealing buffers from shared_buffers even if
> we set a special flag marking them as owned by WAL and out of bounds for
> the normal buffer manager.
> At least that way we could always steal more if we want or return some, as
> long as we're careful about when we do it.
... and as long as you can acquire the WAL per-buffer management space out
of nowhere ...
regards, tom lane
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Cc: tgl@sss.pgh.pa.us, stark@enterprisedb.com, alvherre@commandprompt.com, josh@agliodbs.com, heikki@enterprisedb.com, xzilla@users.sourceforge.net, peter_e@gmx.net, gsmith@gregsmith.com, pgadmin@pse-consulting.de, decibel@decibel.org
Subject: Re: Overhauling GUCS
In-Reply-To: <25597.1213232540@sss.pgh.pa.us>
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