Log files of acpica$ do not have time stamps.

[ecsnl]

Steve Levine also mentioned its useful feature to help understand where problem are with ACPI.

With the different ACPI versions 3.15 debug builds my laptop sometimes would hang for a few seconds, including audio playback and then it would continue again.

It was most likely when it wrote this to the logfile it was stuck:

End Exec EC 175 queue

Beg Exec EC 175

End Exec EC 176 queue

Beg Exec EC 176

End Exec EC 177 queue

It would be useful if the logs would contain something like this: "2009.04.15 12:24:15" and then debug output.

[pasha]

In ToDo from 2007 year

[David Azarewicz]

Time stamps can now be optionally enabled.