Differential D34365

cam: add hw.cam.iosched.read_bias
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Authored by imp on Feb 24 2022, 12:20 AM.

Details

Reviewers

chs

Group Reviewers

cam

Commits

rGd592c0db8ba7: cam: add hw.cam.iosched.read_bias

Summary

Allow a global setting for the read_bias for the dynamic io
scheduler. This allows global policy to be set, in addition to the
existing per-drive policy. kern.cam.iosched.read_bias is a new tunable.

Diff Detail

Repository

rS FreeBSD src repository - subversion

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Lint Passed

Unit

No Test Coverage

Build Status

Buildable 44561
Build 41449: arc lint + arc unit

Event Timeline

imp created this revision.Feb 24 2022, 12:20 AM

Herald added a reviewer: cam. · View Herald TranscriptFeb 24 2022, 12:20 AM

imp requested review of this revision.Feb 24 2022, 12:20 AM

Harbormaster completed remote builds in B44561: Diff 103186.Feb 24 2022, 12:20 AM

imp added a reviewer: chs.Feb 24 2022, 12:21 AM

chs accepted this revision.Feb 24 2022, 12:50 AM

chs added inline comments.

sys/cam/cam_iosched.c
1246	this "val" parameter isn't used if the "ptr" parameter immediate before it is non-NULL, so you might as well just leave val 0 here.

This revision is now accepted and ready to land.Feb 24 2022, 12:50 AM

Closed by commit rGd592c0db8ba7: cam: add hw.cam.iosched.read_bias (authored by imp). · Explain WhyMay 1 2022, 5:29 PM

This revision was automatically updated to reflect the committed changes.

imp added a commit: rGd592c0db8ba7: cam: add hw.cam.iosched.read_bias.

Revision Contents
Changeset List

Path

Size

sys/

cam/

cam_iosched.c

13 lines

Diff 103186

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cam: add hw.cam.iosched.read_biasClosedPublicActions