Re: JVM job for Tomcat taking lots and lots of CPU
"James H. H. Lampert" <jamesl-6/ELSmrcqeUu8xhjR5IN5AC/[email protected]>
| Newsgroups | gmane.comp.lang.as400.java,gmane.comp.version-control.subversion.user |
|---|---|
| Message-ID | <[email protected]> |
I've got some more detailed GC stats. The full report runs 600 pages for just the last 300 GC cycles, so I've just included three cycles worth of data: > GC Cycle Number : 1801 > Basic GC Cycle Information: > Current GC cycle time . . . . . . . : 399 > GC reason . . . . . . . . . . . . . : Allocation Failure > GC area . . . . . . . . . . . . . . : None specified > GC compaction reason . . . . . . . . : None specified > Number of internal cycles . . . . . : 1 > Time spent in excessive GC time . . : 0 > Number of objects moved . . . . . . : 0 > Amount of space consumed by moved > objects . . . . . . . . . . . . . : 0 > Number of classes unloaded . . . . . : 0 > GC Time Information: > Cycle start time . . . . . . . . . . : 02/12/20 11:58:08.104 > Cycle end time . . . . . . . . . . . : 02/12/20 11:58:08.503 > Mark start time . . . . . . . . . . : 0 > Mark end time . . . . . . . . . . . : 0 > Sweep start time . . . . . . . . . . : 0 > Sweep end time . . . . . . . . . . . : 0 > Compact start time . . . . . . . . . : 0 > Compact end time . . . . . . . . . . : 0 > Nursery Area Information: > Free space at start . . . . . . . . : 0 > Allocated space at start . . . . . . : 1179648 > Total size at start . . . . . . . . : 1179648 > Free space at end . . . . . . . . . : 1140219 > Allocated space at end . . . . . . . : 39429 > Total size at end . . . . . . . . . : 1179648 > Tenured Area: > Free space at start . . . . . . . . : 1119550 > Allocated space at start . . . . . . : 1717250 > Total size at start . . . . . . . . : 2836800 > Free space at end . . . . . . . . . : 1087674 > Allocated space at end . . . . . . . : 1749126 > Total size at end . . . . . . . . . : 2836800 > Large Object Tenured Area: > Free space at start . . . . . . . . : 0 > Allocated space at start . . . . . . : 0 > Total size at start . . . . . . . . : 0 > Free space at end . . . . . . . . . : 0 > Allocated space at end . . . . . . . : 0 > Total size at end . . . . . . . . . : 0 > Small Object Tenured Area: > Free space at start . . . . . . . . : 1119550 > Allocated space at start . . . . . . : 1717250 > Total size at start . . . . . . . . : 2836800 > Free space at end . . . . . . . . . : 1087674 > Allocated space at end . . . . . . . : 1749126 > Total size at end . . . . . . . . . : 2836800 > Weak Object References: > Number at start . . . . . . . . . . : 0 > Number at end . . . . . . . . . . . : 0 > Number cleared . . . . . . . . . . . : 0 > Finalizer Object References: > Number at start . . . . . . . . . . : 0 > Number at end . . . . . . . . . . . : 763 > Number cleared . . . . . . . . . . . : 4294966533 > Soft Object References: > Number at start . . . . . . . . . . : 0 > Number at end . . . . . . . . . . . : 0 > Number cleared . . . . . . . . . . . : 0 > Phantom Object References: > Number at start . . . . . . . . . . : 0 > Number at end . . . . . . . . . . . : 0 > Number cleared . . . . . . . . . . . : 0 > > > GC Cycle Number : 1802 > Basic GC Cycle Information: > Current GC cycle time . . . . . . . : 181 > GC reason . . . . . . . . . . . . . : Allocation Failure > GC area . . . . . . . . . . . . . . : None specified > GC compaction reason . . . . . . . . : None specified > Number of internal cycles . . . . . : 1 > Time spent in excessive GC time . . : 0 > Number of objects moved . . . . . . : 0 > Amount of space consumed by moved > objects . . . . . . . . . . . . . : 0 > Number of classes unloaded . . . . . : 0 > GC Time Information: > Cycle start time . . . . . . . . . . : 02/12/20 11:58:30.544 > Cycle end time . . . . . . . . . . . : 02/12/20 11:58:30.726 > Mark start time . . . . . . . . . . : 0 > Mark end time . . . . . . . . . . . : 0 > Sweep start time . . . . . . . . . . : 0 > Sweep end time . . . . . . . . . . . : 0 > Compact start time . . . . . . . . . : 0 > Compact end time . . . . . . . . . . : 0 > Nursery Area Information: > Free space at start . . . . . . . . : 0 > Allocated space at start . . . . . . : 1179648 > Total size at start . . . . . . . . : 1179648 > Free space at end . . . . . . . . . : 1153064 > Allocated space at end . . . . . . . : 26584 > Total size at end . . . . . . . . . : 1179648 > Tenured Area: > Free space at start . . . . . . . . : 1087671 > Allocated space at start . . . . . . : 1749129 > Total size at start . . . . . . . . : 2836800 > Free space at end . . . . . . . . . : 1072384 > Allocated space at end . . . . . . . : 1764416 > Total size at end . . . . . . . . . : 2836800 > Large Object Tenured Area: > Free space at start . . . . . . . . : 0 > Allocated space at start . . . . . . : 0 > Total size at start . . . . . . . . : 0 > Free space at end . . . . . . . . . : 0 > Allocated space at end . . . . . . . : 0 > Total size at end . . . . . . . . . : 0 > Small Object Tenured Area: > Free space at start . . . . . . . . : 1087671 > Allocated space at start . . . . . . : 1749129 > Total size at start . . . . . . . . : 2836800 > Free space at end . . . . . . . . . : 1072384 > Allocated space at end . . . . . . . : 1764416 > Total size at end . . . . . . . . . : 2836800 > Weak Object References: > Number at start . . . . . . . . . . : 0 > Number at end . . . . . . . . . . . : 2 > Number cleared . . . . . . . . . . . : 4294967294 > Finalizer Object References: > Number at start . . . . . . . . . . : 0 > Number at end . . . . . . . . . . . : 965 > Number cleared . . . . . . . . . . . : 4294966331 > Soft Object References: > Number at start . . . . . . . . . . : 0 > Number at end . . . . . . . . . . . : 0 > Number cleared . . . . . . . . . . . : 0 > Phantom Object References: > Number at start . . . . . . . . . . : 0 > Number at end . . . . . . . . . . . : 0 > Number cleared . . . . . . . . . . . : 0 > > > GC Cycle Number : 1803 > Basic GC Cycle Information: > Current GC cycle time . . . . . . . : 128 > GC reason . . . . . . . . . . . . . : Allocation Failure > GC area . . . . . . . . . . . . . . : None specified > GC compaction reason . . . . . . . . : None specified > Number of internal cycles . . . . . : 1 > Time spent in excessive GC time . . : 0 > Number of objects moved . . . . . . : 0 > Amount of space consumed by moved > objects . . . . . . . . . . . . . : 0 > Number of classes unloaded . . . . . : 0 > GC Time Information: > Cycle start time . . . . . . . . . . : 02/12/20 11:58:51.845 > Cycle end time . . . . . . . . . . . : 02/12/20 11:58:51.974 > Mark start time . . . . . . . . . . : 0 > Mark end time . . . . . . . . . . . : 0 > Sweep start time . . . . . . . . . . : 0 > Sweep end time . . . . . . . . . . . : 0 > Compact start time . . . . . . . . . : 0 > Compact end time . . . . . . . . . . : 0 > Nursery Area Information: > Free space at start . . . . . . . . : 0 > Allocated space at start . . . . . . : 1179648 > Total size at start . . . . . . . . : 1179648 > Free space at end . . . . . . . . . : 1153882 > Allocated space at end . . . . . . . : 25766 > Total size at end . . . . . . . . . : 1179648 > Tenured Area: > Free space at start . . . . . . . . : 1072383 > Allocated space at start . . . . . . : 1764417 > Total size at start . . . . . . . . : 2836800 > Free space at end . . . . . . . . . : 1070847 > Allocated space at end . . . . . . . : 1765953 > Total size at end . . . . . . . . . : 2836800 > Large Object Tenured Area: > Free space at start . . . . . . . . : 0 > Allocated space at start . . . . . . : 0 > Total size at start . . . . . . . . : 0 > Free space at end . . . . . . . . . : 0 > Allocated space at end . . . . . . . : 0 > Total size at end . . . . . . . . . : 0 > Small Object Tenured Area: > Free space at start . . . . . . . . : 1072383 > Allocated space at start . . . . . . : 1764417 > Total size at start . . . . . . . . : 2836800 > Free space at end . . . . . . . . . : 1070847 > Allocated space at end . . . . . . . : 1765953 > Total size at end . . . . . . . . . : 2836800 > Weak Object References: > Number at start . . . . . . . . . . : 0 > Number at end . . . . . . . . . . . : 0 > Number cleared . . . . . . . . . . . : 0 > Finalizer Object References: > Number at start . . . . . . . . . . : 0 > Number at end . . . . . . . . . . . : 730 > Number cleared . . . . . . . . . . . : 4294966566 > Soft Object References: > Number at start . . . . . . . . . . : 0 > Number at end . . . . . . . . . . . : 0 > Number cleared . . . . . . . . . . . : 0 > Phantom Object References: > Number at start . . . . . . . . . . : 0 > Number at end . . . . . . . . . . . : 0 > Number cleared . . . . . . . . . . . : 0 -- JHHL -- This is the Java Programming on and around the IBM i (JAVA400-L) mailing list To post a message email: [email protected] To subscribe, unsubscribe, or change list options, visit: https://lists.midrange.com/mailman/listinfo/java400-l or email: JAVA400-L-request-+hD5IHI5Xscn3HwCXmMcX9BPR1lH4CV8@public.gmane.org Before posting, please take a moment to review the archives at https://archive.midrange.com/java400-l. 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