msgbuf: Allow microsecond granularity timestamps
ClosedPublic
Actions

Authored by imp on May 6 2022, 5:33 PM.

Details

Reviewers

Group Reviewers

manpages

Summary

Today, kern.msgbuf_show_timestamp=1 will give 1 second granularity
timestamps on dmesg lines. When kern.msgbuf_show_timestamp=2, we'll
produce microsecond level graunlarity.
For example:
old (== 1):
[13] Dual Console: Video Primary, Serial Secondary
[14] lo0: link state changed to UP
[15] bxe0: NIC Link is Up, 10000 Mbps full duplex, Flow control: ON - receive & transmit
[15] bxe0: link state changed to UP
new (== 2):
[13.807015] Dual Console: Video Primary, Serial Secondary
[14.544150] lo0: link state changed to UP
[15.272044] bxe0: NIC Link is Up, 10000 Mbps full duplex, Flow control: ON - receive & transmit
[15.272052] bxe0: link state changed to UP

Diff Detail

Repository

rS FreeBSD src repository - subversion

Lint

Lint Passed

Unit

No Test Coverage

Build Status

Buildable 45490
Build 42378: arc lint + arc unit

Event Timeline

imp created this revision.May 6 2022, 5:33 PM

Herald added a reviewer: manpages. · View Herald TranscriptMay 6 2022, 5:33 PM

imp requested review of this revision.May 6 2022, 5:33 PM

Harbormaster completed remote builds in B45490: Diff 105744.May 6 2022, 5:33 PM

np accepted this revision.May 6 2022, 5:39 PM

This revision is now accepted and ready to land.May 6 2022, 5:39 PM

Nice! (How did I not know that kern.msgbuf_show_timestamp was a thing?!?)

In D35141#796580, @rpokala wrote:

Nice! (How did I not know that kern.msgbuf_show_timestamp was a thing?!?)

Because nobody has done something like https://reviews.freebsd.org/D35139 to document it?

In D35141#796582, @imp wrote:

In D35141#796580, @rpokala wrote:

Nice! (How did I not know that kern.msgbuf_show_timestamp was a thing?!?)

Because nobody has done something like https://reviews.freebsd.org/D35139 to document it?