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
Unknown Object (File)
Fri, Nov 21, 2:09 AM
Unknown Object (File)
Fri, Nov 21, 2:07 AM
Unknown Object (File)
Fri, Nov 21, 2:07 AM
Unknown Object (File)
Fri, Nov 21, 2:04 AM
Unknown Object (File)
Fri, Nov 7, 2:48 PM
Unknown Object (File)
Thu, Nov 6, 12:08 PM
Unknown Object (File)
Thu, Nov 6, 1:05 AM
Unknown Object (File)
Tue, Oct 28, 12:25 AM
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...