Re: Monitoring time of fsyncing WALs

From: David Steele <david(at)pgmasters(dot)net>
To: Konstantin Knizhnik <k(dot)knizhnik(at)postgrespro(dot)ru>, PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Monitoring time of fsyncing WALs
Date: 2018-06-27 21:29:43
Message-ID: f1fb5fcf-49b0-6616-5c41-abf23efccb8e@pgmasters.net
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On 6/27/18 12:32 PM, Konstantin Knizhnik wrote:
> I wonder why we are monitoring time of writing to WAL, but not time of
> fsyncing WAL segments?
> Is there are principle reason for it or just because nobody added it yet?
> If so, please find very small patch which adding WAIT_EVENT_WAL_FSYNC
> event type.

+1.

--
-David
david(at)pgmasters(dot)net

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