Page MenuHomeFreeBSD
Differential D12337

cam iosched: Limit the quanta default to hz if it's below 200
ClosedPublic
Actions

Authored by fk_fabiankeil.de on Sep 12 2017, 10:17 AM.
Tags
None
Referenced Files
F156506156: D12337.diff
Thu, May 14, 5:44 AM
Unknown Object (File)
Thu, May 7, 6:39 AM
Unknown Object (File)
Sat, May 2, 10:38 AM
Unknown Object (File)
Fri, May 1, 9:29 PM
Unknown Object (File)
Mon, Apr 27, 12:17 PM
Unknown Object (File)
Sun, Apr 26, 12:44 AM
Unknown Object (File)
Sat, Apr 25, 8:00 AM
Unknown Object (File)
Thu, Apr 16, 7:55 PM
View All Files
Subscribers
None

Details

Reviewers
emaste
imp
Commits
rS323511: cam iosched: Limit the quanta default to hz if it's below 200
Summary

cam iosched: Limit the quanta default to hz if it's below 200

Previously the quanta default was always 200 while hz defaults
to 100 when running in a vm.

The cam_iosched_ticker() can't be scheduled more than once per tick
and some of the limiters depend on quanta matching the number of calls
per second to enforce the proper limits.

PR: 221953
Obtained from: ElectroBSD

Diff Detail

Repository
rS FreeBSD src repository - subversion
Lint
Lint Not Applicable
Unit
Tests Not Applicable

Event Timeline

fk_fabiankeil.de created this revision.Sep 12 2017, 10:17 AM
imp accepted this revision.Sep 12 2017, 10:48 PM

This looks good, but isn't the patch I expected from private email. I'll take a dry-run at committing it.

This revision is now accepted and ready to land.Sep 12 2017, 10:48 PM
Closed by commit rS323511: cam iosched: Limit the quanta default to hz if it's below 200 (authored by imp). · Explain WhySep 12 2017, 11:46 PM
This revision was automatically updated to reflect the committed changes.

Revision Contents
Changeset List

PathSize
head/
sys/
cam/
2 lines

Diff 32995

View Options

head/sys/cam/cam_iosched.c

Loading...