From: Alvaro Herrera <alvherre@2ndquadrant.com>
To: Tomas Vondra <tomas.vondra@2ndquadrant.com>
Cc: Amit Kapila <amit.kapila16@gmail.com>
Cc: PostgreSQL Hackers <pgsql-hackers@postgresql.org>
Subject: Re: PATCH: logical_work_mem and logical streaming of large in-progress transactions
Date: Thu, 26 Sep 2019 16:36:20 -0300
Message-ID: <20190926193620.GA16836@alvherre.pgsql> (raw)
In-Reply-To: <20190926193359.GA16585@alvherre.pgsql>
On 2019-Sep-26, Alvaro Herrera wrote:
> How certain are you about the approach to measure memory used by a
> reorderbuffer transaction ... does it not cause a measurable performance
> drop? I wonder if it would make more sense to use a separate contexts
> per transaction and use context-level accounting (per the patch Jeff
> Davis posted elsewhere for hash joins ... though I see now that that
> only works fot aset.c, not other memcxt implementations), or something
> like that.
Oh, I just noticed that that patch was posted separately in its own
thread, and that that improved version does include support for other
memory context implementations. Excellent.
--
Álvaro Herrera https://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services
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To: pgsql-hackers@postgresql.org
Cc: alvherre@2ndquadrant.com, tomas.vondra@2ndquadrant.com, amit.kapila16@gmail.com
Subject: Re: PATCH: logical_work_mem and logical streaming of large in-progress transactions
In-Reply-To: <20190926193620.GA16836@alvherre.pgsql>
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