RFR(XS): 8004170: G1: Verbose GC output is not getting flushed to log file using JDK 8

Kirk Pepperdine kirk at kodewerk.com
Tue Dec 4 17:21:53 UTC 2012

Would it be worthwhile to explore normalizing the G1LogLevel with CMSLogLevel values?

On 2012-12-03, at 6:52 PM, John Cuthbertson <john.cuthbertson at oracle.com> wrote:

> Hi Everyone,
> Can I have a couple of volunteers look over the changes for this CR - the webrev can be found at: http://cr.openjdk.java.net/~johnc/8004170/webrev.0/
> Summary:
> When we changed the G1 evacuation pause to not use instances of the TraceTime class we forgot to flush the GC log file (which happened during the TraceTime destructor). The fix is to add a flush call to G1CollectedHeap::log_gc_footer(). I also noticed that TraceCPUTime destructor does not flush the specified log file and, since it only seems to be instantiated from GC code, it probably should.
> Testing:
> GCOld with -XX:G1LogLevel=fine,finer,finest and -Xloggc. The submitter of the CR has also verified the fix.
> Thanks,
> JohnC

More information about the hotspot-gc-dev mailing list