Use System.nanoTime() instead of System.currentTimeMillis() for LogEvent
timestamp
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Key: LBCLASSIC-88
URL: http://jira.qos.ch/browse/LBCLASSIC-88
Project: logback-classic
Issue Type: Improvement
Affects Versions: 0.9.12
Reporter: Thorbjoern Ravn Andersen
Assignee: Logback dev list
Priority: Minor
Apparently the System.nanoTime() is better suited than
System.currentTimeMillis() for the relative time measurements done in logback,
plus hopefully the resolution is finer giving more reliable figures for small
operations. Apparently the currentTimeMillis resolution is 15 ms under XP
where the nanoTimer is much finer. Under OS X both have a resolution of 1 ms.
As logback requires Java 5 where this is standard, it would be simple to make
the switch.
Note:
http://www.techper.net/2008/08/10/systemcurrenttimemillis-systemnanotime-and-their-resolution/
lists that it may be relevant to create a factory for this instead of just
hardlinking to the java runtime so it is possible to link to another time
source:
"A more robust timer with a 1msec resolution is LWJGL's Sys.getTime which uses
TGT (time get time) on Windows and currentTimeMillis elsewhere."
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