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From: Jeff Davis <pgsql@j-davis.com>
To: Tomas Vondra <tomas.vondra@2ndquadrant.com>
To: Melanie Plageman <melanieplageman@gmail.com>
Cc: Soumyadeep Chakraborty <sochakraborty@pivotal.io>
Cc: Robert Haas <robertmhaas@gmail.com>
Cc: Pg Hackers <pgsql-hackers@postgresql.org>
Cc: soumyadeep2007@gmail.com
Subject: Re: Memory Accounting
Date: Thu, 26 Sep 2019 13:36:46 -0700
Message-ID: <57780817877d4b40106b248b63261e21a7a56261.camel@j-davis.com> (raw)
In-Reply-To: <20190926192244.mk5ru6nkofo7am3h@development>
References: <027a129b8525601c6a680d27ce3a7172dab61aab.camel@j-davis.com>
	<CAAKRu_aAtcpqFz0fJKAjrvgFUUmYp2mPbeXOPRKWNtJK_Fxa-g@mail.gmail.com>
	<20190724215228.tlyj74ie4l2jn7ji@development>
	<CADwEdor2jZitB2P94on2LUAhdi0iRHv2WNseV3LJmJPenuuNpw@mail.gmail.com>
	<67f66d2fa39e35aef90093c74531a38dcd5c0f73.camel@j-davis.com>
	<CAAKRu_b2Qxr=GzE7thk8_=JDgYRnOssYBuqWdZ39R2+Heo=oQw@mail.gmail.com>
	<20190926192244.mk5ru6nkofo7am3h@development>

On Thu, 2019-09-26 at 21:22 +0200, Tomas Vondra wrote:
> It's worth mentioning that those bechmarks (I'm assuming we're
> talking
> about the numbers Rober shared in [1]) were done on patches that used
> the eager accounting approach (i.e. walking all parent contexts and
> updating the accounting for them).
> 
> I'm pretty sure the current "lazy accounting" patches don't have that
> issue, so unless someone objects and/or can show numbers
> demonstrating
> I'wrong I'll stick to my plan to get this committed soon.

That was my conclusion, as well.

Regards,
	Jeff Davis

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