Feedback requested: HotSpot GC logging improvements

Rainer Jung rainer.jung at
Thu May 6 20:18:09 UTC 2010

Short addition to my previous post:

On 06.05.2010 21:32, Tony Printezis wrote:
> - Would people really hate it if HotSpot starts appending the GC log
> file name with a (zero-padded) sequence number? Maybe if N == 1 (the
> default), HotSpot will skip the sequence number and ignore S, i.e.,
> behave as it does today.
> - To the people who have been asking for cyclic GC logs: is the sequence
> number scheme above good enough?

Another slight problem with the numbering scheme is that during 
archiving you'll overwrite old files. So your archive scripts need to 
intelligently rename the files. Not too easy.

Maybe adding a couple of substitution characters (%p=pid, %N roll 
number, %Y, ... the usual strftime caharcters for timestamp formatting).


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