Os that take too long
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Authored by imp on Jul 18 2024, 10:02 PM.

Details

Reviewers

mav
jhb

Group Reviewers

cam

Commits

rGe82644e59ece: cam/iosched: Add a counter of I/Os that take too long

Summary

Add kern.cam.DEV.UNIT.iosched.too_long (to count I/Os taking too long)
and kern.cam.DEV.UNIT.bad_latency (to set this threshold, defaults to
500ms). Each class of I/O (read, write, trim) has its own counters and
thresholds.

Diff Detail

Repository

rG FreeBSD src repository

Lint

Lint Not Applicable

Unit

Tests Not Applicable

Event Timeline

imp created this revision.Jul 18 2024, 10:02 PM

Herald added a reviewer: cam. · View Herald TranscriptJul 18 2024, 10:02 PM

Harbormaster completed remote builds in B58716: Diff 141097.Jul 18 2024, 10:02 PM

imp requested review of this revision.Jul 18 2024, 10:02 PM

imp added a parent revision: D46032: ada/da: Ignore CCBs at wrong priority in *start.

imp added a child revision: D46034: cam/iosched: Pass the transaction down we're collecting stats for.

imp added a child revision: D46038: cam/iosched: Make each periph driver provide schedule fnp.Jul 19 2024, 4:19 AM

imp removed a child revision: D46038: cam/iosched: Make each periph driver provide schedule fnp.

imp removed a parent revision: D46032: ada/da: Ignore CCBs at wrong priority in *start.

Misc updates with testing

Harbormaster completed remote builds in B58721: Diff 141105.Jul 19 2024, 4:22 AM

jhb accepted this revision.Jul 19 2024, 3:25 PM

This revision is now accepted and ready to land.Jul 19 2024, 3:25 PM

Closed by commit rGe82644e59ece: cam/iosched: Add a counter of I/Os that take too long (authored by imp). · Explain WhyJul 20 2024, 2:59 AM

This revision was automatically updated to reflect the committed changes.

imp added a commit: rGe82644e59ece: cam/iosched: Add a counter of I/Os that take too long.

Revision Contents
Changeset List

Path

Size

sys/

cam/

cam_iosched.c

21 lines

Diff 141167

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cam/iosched: Add a counter of I/Os that take too longClosedPublicActions