enc_daemon CPU usage on large system

Description

On the ~1.2k disk system in-house, I've noticed that the enc_daemon is utilizing a bit of CPU. Seems like it can be optimized. Attached is the flamegraph showing where it's spending most of its time.

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Alexander Motin October 5, 2021 at 7:46 PM

The patches are committed upstream and merged to 12.0.

Alexander Motin October 5, 2021 at 2:38 AM

These two patches should reduce CPU usage proportionally to the number of HBAs in the system:
https://reviews.freebsd.org/D32304
https://reviews.freebsd.org/D32305

 

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Katalon Platform

Created October 4, 2021 at 8:19 PM
Updated July 6, 2022 at 9:00 PM
Resolved November 11, 2021 at 6:32 PM