Re: remove more archiving overhead

From: Nathan Bossart <nathandbossart(at)gmail(dot)com>
To: Kyotaro Horiguchi <horikyota(dot)ntt(at)gmail(dot)com>
Cc: pgsql-hackers(at)postgresql(dot)org
Subject: Re: remove more archiving overhead
Date: 2022-02-24 21:48:53
Message-ID: 20220224214853.GA661650@nathanxps13
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I tested this again with many more WAL files and a much larger machine
(r5d.24xlarge with data directory on an NVMe SSD instance store volume).
As before, I am using a bare-bones archive module that does nothing but
return true. Without the patch, archiving ~120k WAL files took about 109
seconds. With the patch, it took around 62 seconds, which amounts to a
~43% reduction in overhead.

--
Nathan Bossart
Amazon Web Services: https://aws.amazon.com

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