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[sysvinit-devel] sysvinit causing many reads?

From: Ortwin Glück
Subject: [sysvinit-devel] sysvinit causing many reads?
Date: Wed, 10 Jul 2019 16:08:51 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.7.2


Browsing I/O statistics taken by atop on a DB server I came across this curious 10 minute slot where init was apparently causing enormous reads on the system:

PID TID RDDSK WRDSK WCANCL DSK CMD 1/72 1 - 3.3G 428K 0K 63% init

Also it is the top source of I/O since boot 76 days ago:
PID TID RDDSK WRDSK WCANCL DSK CMD 1/19 1 - 3.8T 2.1T 1.9G 66% init 30892 - 1.4T 3.1G 139.9M 15% cron 2672 - 57.2G 1.0T 0K 12% oracle

I wonder how that is possible and if it is a bug.

The system is Gentoo with sysvinit-2.93 on linux-4.20.17.


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