Timestamps in dmesg

[Ihor Antonov]

Hello FreeBSD folks.





A question I've got recently while monitoring a few bugs on my laptop is 
"Why does dmesg not show timestamps?".



My use case is following: once in a while a buggy driver would spill an 
error into dmesg. It does it periodically, probably in response to some 
user action. When I look at dmesg I see dozens of similar error 
messages, but I don't know really how often they happen. Did it happen 
15 times in last minute? Or 15 times over this day? Having timestamps 
would help to correlate errors to other events.

I tried searching through old mailing lists and forum and the only thing 
I found is that someone considered this feature to be a bloat. (NetBSD 
has it!)


Am I missing something obvious?
  How can I get timestamps in dmesg? It seems to me that this is such an 
essential feature..


Thanks.

Ihor Antonov