From: Fred Habash <fmhabash@gmail.com>
To: Alvaro Herrera <alvherre@2ndquadrant.com>
Cc: pgsql-performance@lists.postgresql.org
Subject: Re: Guideline To Resolve LWLock:SubtransControlLock
Date: Mon, 20 Aug 2018 16:52:47 -0400
Message-ID: <82F3FC39-72DA-4C25-804A-212DE0E5ECB3@gmail.com> (raw)
In-Reply-To: <20180817182645.nmfaw6w7qzqb2dau@alvherre.pgsql>
References: <20180817182645.nmfaw6w7qzqb2dau@alvherre.pgsql>
Thanks.
How do we go about calculating appropriate values for these two parameters ...
> 'NUM_SUBTRANS_BUFFERS'?
TOTAL_MAX_CACHED_SUBXIDS
And do both require a recompile?
————-
Thank you.
On Aug 17, 2018, at 2:26 PM, Alvaro Herrera <alvherre@2ndquadrant.com> wrote:
>> And as for the recompile, are you thinking 'NUM_SUBTRANS_BUFFERS'?
>
> Yes, that's one option, but there's also TOTAL_MAX_CACHED_SUBXIDS.
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To: pgsql-performance@postgresql.org
Cc: fmhabash@gmail.com, alvherre@2ndquadrant.com, pgsql-performance@lists.postgresql.org
Subject: Re: Guideline To Resolve LWLock:SubtransControlLock
In-Reply-To: <82F3FC39-72DA-4C25-804A-212DE0E5ECB3@gmail.com>
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