Re: cvs head? initdb?

From: Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>
To: Jan Wieck <JanWieck(at)Yahoo(dot)com>
Cc: Christopher Browne <cbbrowne(at)libertyrms(dot)info>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: cvs head? initdb?
Date: 2003-11-14 18:39:06
Message-ID: 200311141839.hAEId6V24800@candle.pha.pa.us
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Jan Wieck wrote:
> Bruce Momjian wrote:
>
> > Jan Wieck wrote:
> >> >> Yeah, there was a problem with *extreme* sharing ... the code tried to
> >> >> use the same buffer for multiple disk blocks at the same time, and
> >> >> somehow the backends did not agree on the correct content. But it's
> >> >> fixed and back in. You can see ARC working by setting
> >> >>
> >> >> buffer_strategy_status_interval = 10 # seconds
> >
> > The above line is the one I was asking about? Does that just control
> > debug output interval? If so, it should be named more appropriately.
>
> Yes, all it controls is the DEBUG1 output eveny N seconds. What is
> inappropriate about it? It is exactly that, it shows the sizes and
> recent hit rates for the 4 different CDB queues of the strategy. Have a
> better one?

I figured it should begin with debug_ or log_, maybe:

debug_shared_buffers = 10 # seconds

I don't think "interval" is needed and it clearly links to the
shared_buffers parameter.

--
Bruce Momjian | http://candle.pha.pa.us
pgman(at)candle(dot)pha(dot)pa(dot)us | (610) 359-1001
+ If your life is a hard drive, | 13 Roberts Road
+ Christ can be your backup. | Newtown Square, Pennsylvania 19073

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