How to read the memory/memdbg log with regards to an OOM?

We're trying to migrate from Sun JVM 1.5.0_14 to JRockit R27.5.0 running WebLogic 9.2.2 on Sun Solaris 10 on T2000 boxes (8 cores and 32G of memory). When specifying an pausetime target of 200ms (-server -Xms1g -Xmx1g -XgcPrio:pausetime -Xpausetarget=200ms -XXgcThreads:4 -XXoptThreads:4 -XXnoSystemGC -XXallocPrefetch) we're running in OOMs like
<17.03.2008 18.17 Uhr CET> <Notice> <Log Management> <BEA-170027> <The server initialized the domain log broadcaster successfully. Log messages will now be broadcasted to the domain log.>
Exception in thread "Dispatcher-Thread-19" java.lang.OutOfMemoryError: allocLargeObjectOrArray - Object size: 7057136, Num elements: 3528560
     at java.lang.AbstractStringBuilder.expandCapacity(AbstractStringBuilder.java:99)
     at java.lang.AbstractStringBuilder.append(AbstractStringBuilder.java:393)
     at java.lang.StringBuilder.append(StringBuilder.java:120)
     at java.lang.Thread.run(Thread.java:595)
<17.03.2008 18.17 Uhr CET> <Notice> <Cluster> <BEA-000138> <Listening for announcements from cluster PT_VK_Cluster on 239.255.255.22:7001.> From the corresponding memory/memdbg log:
[memory ][Mon Mar 17 17:45:30 2008][15174] Running with 32 bit heap and compressed references.
[memdbg ][Mon Mar 17 17:45:30 2008][15174] Memory layout after heap allocation:
[memdbg ][Mon Mar 17 17:45:30 2008][15174] ' ' - free, '-' - OS reserved range, 'r' - reserved, 'x' - committed,
[memdbg ][Mon Mar 17 17:45:30 2008][15174] '+' - committed/read, 'e' - committed/executable
[memdbg ][Mon Mar 17 17:45:30 2008][15174] 'J' - java heap, 'j' - java heap data structures
[memdbg ][Mon Mar 17 17:45:30 2008][15174] 00 0.00Gb -jjjjjjjj+jJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJ
[memdbg ][Mon Mar 17 17:45:30 2008][15174] 10 0.25Gb JJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJ
[memdbg ][Mon Mar 17 17:45:30 2008][15174] 20 0.50Gb JJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJ
[memdbg ][Mon Mar 17 17:45:30 2008][15174] 30 0.75Gb JJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJ
[memdbg ][Mon Mar 17 17:45:30 2008][15174] 40 1.00Gb JJJJJJJJJJJ
[memdbg ][Mon Mar 17 17:45:30 2008][15174] 50 1.25Gb
[memdbg ][Mon Mar 17 17:45:30 2008][15174] 60 1.50Gb
[memdbg ][Mon Mar 17 17:45:30 2008][15174] 70 1.75Gb
[memdbg ][Mon Mar 17 17:45:30 2008][15174] 80 2.00Gb
[memdbg ][Mon Mar 17 17:45:30 2008][15174] 90 2.25Gb
[memdbg ][Mon Mar 17 17:45:30 2008][15174] a0 2.50Gb
[memdbg ][Mon Mar 17 17:45:30 2008][15174] b0 2.75Gb
[memdbg ][Mon Mar 17 17:45:30 2008][15174] c0 3.00Gb
[memdbg ][Mon Mar 17 17:45:30 2008][15174] d0 3.25Gb
[memdbg ][Mon Mar 17 17:45:30 2008][15174] e0 3.50Gb
[memdbg ][Mon Mar 17 17:45:30 2008][15174] f0 3.75Gb
[memdbg ][Mon Mar 17 17:45:30 2008][15174] Minimum TLA size is 2048 bytes
[memdbg ][Mon Mar 17 17:45:30 2008][15174] Preferred TLA size is 40960 bytes
[memdbg ][Mon Mar 17 17:45:30 2008][15174] Large object limit is 2048 bytes
[memdbg ][Mon Mar 17 17:45:30 2008][15174] Minimal blocksize on the freelist is 2048 bytes
[memdbg ][Mon Mar 17 17:45:30 2008][15174] Initial and maximum number of gc threads: 4, of which 4 parallel threads, 4 concurrent threads, and 4 yc threads.
[memdbg ][Mon Mar 17 17:45:30 2008][15174] Maximum nursery percentage of free heap is: 95.
[memdbg ][Mon Mar 17 17:45:30 2008][15174] Prefetch distance in balanced tree: 4
[compact][Mon Mar 17 17:45:30 2008][15174] Compactset limit: 299900, Using matrixes: 1, Static: 0
[memory ][Mon Mar 17 17:45:30 2008][15174] GC mode: Garbage collection optimized for short pausetimes, initial strategy: Concurrent Mark & Sweep
[memory ][Mon Mar 17 17:45:30 2008][15174] heap size: 1048576K, maximal heap size: 1048576K
[memory ][Mon Mar 17 17:45:30 2008][15174] < s>-<end>: GC <before>K-><after>K (<heap>K), <pause> ms
[memory ][Mon Mar 17 17:45:30 2008][15174] <s/start> - start time of collection (seconds since jvm start)
[memory ][Mon Mar 17 17:45:30 2008][15174] <end>     - end time of collection (seconds since jvm start)
[memory ][Mon Mar 17 17:45:30 2008][15174] <before> - memory used by objects before collection (KB)
[memory ][Mon Mar 17 17:45:30 2008][15174] <after>   - memory used by objects after collection (KB)
[memory ][Mon Mar 17 17:45:30 2008][15174] <heap>    - size of heap after collection (KB)
[memory ][Mon Mar 17 17:45:30 2008][15174] <pause>   - total sum of pauses during collection (milliseconds)
[memory ][Mon Mar 17 17:45:30 2008][15174]             run with -Xverbose:gcpause to see individual pauses
[memdbg ][Mon Mar 17 17:45:30 2008][15174] Using prefetch linesize: 16 bytes chunks: 512 bytes pf_dist: 128 bytes
[gcpause][Mon Mar 17 18:17:38 2008][15174] Thread "Dispatcher-Thread-19" id=79 idx=0x138 tid=78 was in object alloc 3524.102 ms from 1924.890 s
[memdbg ][Mon Mar 17 18:17:38 2008][15174] GC reason: Large object allocation failed (7057136 bytes), cause: Alloc Queue
[memdbg ][Mon Mar 17 18:17:38 2008][15174] Stopping of javathreads took 19.615 ms
[memdbg ][Mon Mar 17 18:17:38 2008][15174] old collection 181 started
[memdbg ][Mon Mar 17 18:17:38 2008][15174] Alloc Queue size before GC: 7057136, tlas: 0, oldest: 0
[memdbg ][Mon Mar 17 18:17:38 2008][15174] Compacting 8 heap parts at index 24 (type external) (exceptional false)
[compact][Mon Mar 17 18:17:38 2008][15174] OC 181: 8 parts (max 512), index 24. Type external, (exceptional false)
[compact][Mon Mar 17 18:17:38 2008][15174] Area start: 0x5b00000, end: 0x6b00000
[memdbg ][Mon Mar 17 18:17:38 2008][15174] Starting initial marking phase (OC1).
[nursery][Mon Mar 17 18:17:38 2008][15174] KeepAreaStart: 0x150a5378 KeepAreaEnd: 0x1aeb8918
[nursery][Mon Mar 17 18:17:38 2008][15174] Young collection started. This YC is a part of OC#181 initial marking.
[nursery][Mon Mar 17 18:17:38 2008][15174] Setting mmNurseryMarker[0] to 0xf803880
[nursery][Mon Mar 17 18:17:38 2008][15174] Setting mmNurseryMarker[1] to 0x150a5378
[memdbg ][Mon Mar 17 18:17:38 2008][15174] Initial marking phase promoted 2 objects (0K)
[gcpause][Mon Mar 17 18:17:38 2008][15174] old collection phase 1 pause time: 124.798376 ms, (start time: 1928.495 s)
[memdbg ][Mon Mar 17 18:17:38 2008][15174] Restarting of javathreads took 0.643 ms
[memdbg ][Mon Mar 17 18:17:38 2008][15174] Starting concurrent marking phase (OC2).
[memdbg ][Mon Mar 17 18:17:41 2008][15174] Starting precleaning phase (OC3).
[memdbg ][Mon Mar 17 18:17:41 2008][15174] Stopping of javathreads took 19.442 ms
[memdbg ][Mon Mar 17 18:17:41 2008][15174] Starting final marking phase (OC4).
[nursery][Mon Mar 17 18:17:41 2008][15174] KeepAreaStart: 0x0 KeepAreaEnd: 0x0
[nursery][Mon Mar 17 18:17:41 2008][15174] Young collection started. This YC is a part of OC#181 final marking.
[memdbg ][Mon Mar 17 18:17:41 2008][15174] Final marking phase promoted 75597 objects (2829K)
[memdbg ][Mon Mar 17 18:17:41 2008][15174] Removing 20 permanent work packets from pool, now 376 packets
[memdbg ][Mon Mar 17 18:17:41 2008][15174] total concurrent mark time: 3261.573 ms
[memdbg ][Mon Mar 17 18:17:41 2008][15174] ending marking phase
[memdbg ][Mon Mar 17 18:17:41 2008][15174] current error: -236.220931
[memdbg ][Mon Mar 17 18:17:41 2008][15174] Requesting to run parallel sweep since Alloc Queue is non-empty.
[memdbg ][Mon Mar 17 18:17:41 2008][15174] Will use parallel sweep instead of concurrent sweep due to request.
[memdbg ][Mon Mar 17 18:17:41 2008][15174] starting parallel sweeping phase
[compact][Mon Mar 17 18:17:41 2008][15174] Evacuation added 1473472 bytes to the freelist
[compact][Mon Mar 17 18:17:41 2008][15174] Evacuation added 318008 bytes to the freelist
[compact][Mon Mar 17 18:17:41 2008][15174] Evacuation added 60896 bytes to the freelist
[compact][Mon Mar 17 18:17:41 2008][15174] Evacuation added 129984 bytes to the freelist
[compact][Mon Mar 17 18:17:41 2008][15174] Evacuation added 1230896 bytes to the freelist
[compact][Mon Mar 17 18:17:41 2008][15174] Evacuation added 1881216 bytes to the freelist
[compact][Mon Mar 17 18:17:41 2008][15174] Evacuation added 262360 bytes to the freelist
[compact][Mon Mar 17 18:17:41 2008][15174] Evacuation added 1293112 bytes to the freelist
[compact][Mon Mar 17 18:17:41 2008][15174] Evacuation added 1031088 bytes to the freelist
[compact][Mon Mar 17 18:17:41 2008][15174] Evacuation added 3392344 bytes to the freelist
[compact][Mon Mar 17 18:17:41 2008][15174] Evacuation added 520800 bytes to the freelist
[compact][Mon Mar 17 18:17:41 2008][15174] Evacuation added 94160 bytes to the freelist
[compact][Mon Mar 17 18:17:41 2008][15174] Evacuation added 391624 bytes to the freelist
[compact][Mon Mar 17 18:17:41 2008][15174] Evacuation added 2152 bytes to the freelist
[compact][Mon Mar 17 18:17:41 2008][15174] Evacuation added 13144 bytes to the freelist
[compact][Mon Mar 17 18:17:41 2008][15174] Evacuation added 1560688 bytes to the freelist
[compact][Mon Mar 17 18:17:41 2008][15174] Evacuation added 3968 bytes to the freelist
[compact][Mon Mar 17 18:17:41 2008][15174] Evacuation added 280952 bytes to the freelist
[compact][Mon Mar 17 18:17:41 2008][15174] Evacuation added 232952 bytes to the freelist
[compact][Mon Mar 17 18:17:41 2008][15174] Evacuation added 838880 bytes to the freelist
[compact][Mon Mar 17 18:17:41 2008][15174] Evacuation added 142616 bytes to the freelist
[compact][Mon Mar 17 18:17:41 2008][15174] Evacuation added 18656 bytes to the freelist
[compact][Mon Mar 17 18:17:41 2008][15174] Evacuation added 103312 bytes to the freelist
[compact][Mon Mar 17 18:17:41 2008][15174] Evacuation added 35496 bytes to the freelist
[compact][Mon Mar 17 18:17:41 2008][15174] Evacuation added 374760 bytes to the freelist
[compact][Mon Mar 17 18:17:41 2008][15174] Evacuation added 4216 bytes to the freelist
[compact][Mon Mar 17 18:17:41 2008][15174] Evacuation added 1081256 bytes to the freelist
[compact][Mon Mar 17 18:17:41 2008][15174] Evacuation found 9621 objects and moved 9587 objects
[memdbg ][Mon Mar 17 18:17:41 2008][15174] total sweep time: 57.433 ms
[memdbg ][Mon Mar 17 18:17:41 2008][15174] ending sweeping phase
[nursery][Mon Mar 17 18:17:41 2008][15174] Setting mmNurseryMarker[0] to 0xf77a8c8
[nursery][Mon Mar 17 18:17:41 2008][15174] Setting mmNurseryMarker[1] to 0x1501a790
[nursery][Mon Mar 17 18:17:41 2008][15174] Nursery size increased from 0kb to 327680kb. Parts: 1177
[gcpause][Mon Mar 17 18:17:41 2008][15174] Threads waited for memory 3398.495 ms starting at 1928.426 s
[memdbg ][Mon Mar 17 18:17:41 2008][15174] Alloc Queue size after GC: 7057136, tlas: 0, oldest: 1
[compact][Mon Mar 17 18:17:41 2008][15174] Average compact time ratio: 0.953058
[compact][Mon Mar 17 18:17:41 2008][15174] Compaction pause: 36.552 (target 127.074), update ref pause: 2.080 (target 6.259)
[compact][Mon Mar 17 18:17:41 2008][15174] Updated 16423 refs (limit: 54054).
[compact][Mon Mar 17 18:17:41 2008][15174] Compaction ended at index 31, object end address 0x69f8058.
[compact][Mon Mar 17 18:17:41 2008][15174] Summary: 181;24;31;8;2;0;36.552;127.074;2.080;6.259;16423;54054
[compact][Mon Mar 17 18:17:41 2008][15174] External default parts to compact set to 16
[compact][Mon Mar 17 18:17:41 2008][15174] Compaction too short, increasing compact ratio.
[memdbg ][Mon Mar 17 18:17:41 2008][15174] gc-trigger is 12.339 %
[memdbg ][Mon Mar 17 18:17:41 2008][15174] Nursery size after OC: 335544320
[gcpause][Mon Mar 17 18:17:41 2008][15174] old collection phase 4-0 pause time: 250.697868 ms, (start time: 1931.576 s)
[gcpause][Mon Mar 17 18:17:41 2008][15174] (pause includes compaction: 36.552 ms (external), update ref: 2.080 ms)
[memory ][Mon Mar 17 18:17:41 2008][15174] 1928.495-1931.826: GC 169061K->164649K (1048576K), sum of pauses 375.496 ms
[memdbg ][Mon Mar 17 18:17:41 2008][15174] Page faults before GC: 4527, page faults after GC: 4527, pages in heap: 131072
[finaliz][Mon Mar 17 18:17:41 2008][15174] (OC) Pending finalizers 0->2
[memdbg ][Mon Mar 17 18:17:41 2008][15174] Restarting of javathreads took 0.726 ms
[memdbg ][Mon Mar 17 18:17:41 2008][15174] GC reason: Large object allocation failed (7057136 bytes), cause: Alloc Queue
[memdbg ][Mon Mar 17 18:17:41 2008][15174] Stopping of javathreads took 19.403 ms
[memdbg ][Mon Mar 17 18:17:41 2008][15174] old collection 182 started
[memdbg ][Mon Mar 17 18:17:41 2008][15174] Alloc Queue size before GC: 7057136, tlas: 0, oldest: 1
[memdbg ][Mon Mar 17 18:17:41 2008][15174] Exceptional compaction at end of heap ordered. Requesting to run parallel sweep.
[memdbg ][Mon Mar 17 18:17:41 2008][15174] Compacting 16 heap parts at index 496 (type external) (exceptional true)
[compact][Mon Mar 17 18:17:41 2008][15174] OC 182: 16 parts (max 512), index 496. Type external, (exceptional true)
[compact][Mon Mar 17 18:17:41 2008][15174] Area start: 0x40b00000, end: 0x42b00000
[memdbg ][Mon Mar 17 18:17:41 2008][15174] Starting initial marking phase (OC1).
[nursery][Mon Mar 17 18:17:41 2008][15174] KeepAreaStart: 0x1501a790 KeepAreaEnd: 0x1aabc2d0
[nursery][Mon Mar 17 18:17:41 2008][15174] Young collection started. This YC is a part of OC#182 initial marking.
[nursery][Mon Mar 17 18:17:41 2008][15174] Setting mmNurseryMarker[0] to 0xf77a8c8
[nursery][Mon Mar 17 18:17:41 2008][15174] Setting mmNurseryMarker[1] to 0x1501a790
[memdbg ][Mon Mar 17 18:17:41 2008][15174] Initial marking phase promoted 2351 objects (94K)
[gcpause][Mon Mar 17 18:17:41 2008][15174] old collection phase 1 pause time: 126.584439 ms, (start time: 1931.874 s)
[memdbg ][Mon Mar 17 18:17:41 2008][15174] Restarting of javathreads took 0.547 ms
[memdbg ][Mon Mar 17 18:17:41 2008][15174] Starting concurrent marking phase (OC2).
[compact][Mon Mar 17 18:17:42 2008][15174] Pointermatrix for thread '(GC Main Thread)' failed to extend beyond 43378 elements.
[memdbg ][Mon Mar 17 18:17:42 2008][15174] Too many pointers, compaction aborted
[memdbg ][Mon Mar 17 18:17:44 2008][15174] Starting precleaning phase (OC3).
[memdbg ][Mon Mar 17 18:17:44 2008][15174] Stopping of javathreads took 19.425 ms
[memdbg ][Mon Mar 17 18:17:44 2008][15174] Starting final marking phase (OC4).
[nursery][Mon Mar 17 18:17:44 2008][15174] KeepAreaStart: 0x0 KeepAreaEnd: 0x0
[nursery][Mon Mar 17 18:17:44 2008][15174] Young collection started. This YC is a part of OC#182 final marking.
[memdbg ][Mon Mar 17 18:17:44 2008][15174] Final marking phase promoted 72379 objects (2561K)
[memdbg ][Mon Mar 17 18:17:44 2008][15174] Removing 19 permanent work packets from pool, now 357 packets
[memdbg ][Mon Mar 17 18:17:44 2008][15174] total concurrent mark time: 3161.521 ms
[memdbg ][Mon Mar 17 18:17:44 2008][15174] ending marking phase
[memdbg ][Mon Mar 17 18:17:44 2008][15174] current error: -175.496244
[memdbg ][Mon Mar 17 18:17:44 2008][15174] Requesting to run parallel sweep since Alloc Queue is non-empty.
[memdbg ][Mon Mar 17 18:17:44 2008][15174] Will use parallel sweep instead of concurrent sweep due to request.
[memdbg ][Mon Mar 17 18:17:44 2008][15174] starting parallel sweeping phase
[memdbg ][Mon Mar 17 18:17:44 2008][15174] total sweep time: 18.785 ms
[memdbg ][Mon Mar 17 18:17:44 2008][15174] ending sweeping phase
[nursery][Mon Mar 17 18:17:44 2008][15174] Setting mmNurseryMarker[0] to 0xf77aa98
[nursery][Mon Mar 17 18:17:44 2008][15174] Setting mmNurseryMarker[1] to 0x14e0c8f0
[nursery][Mon Mar 17 18:17:44 2008][15174] Nursery size increased from 0kb to 327680kb. Parts: 1263
[memdbg ][Mon Mar 17 18:17:44 2008][15174] Alloc Queue size after GC: 7057136, tlas: 0, oldest: 2
[compact][Mon Mar 17 18:17:44 2008][15174] Compaction pause: 0.000 (target 127.074), update ref pause: 0.000 (target 6.259)
[compact][Mon Mar 17 18:17:44 2008][15174] Updated 43378 refs (limit: 54054).
[compact][Mon Mar 17 18:17:44 2008][15174] Compaction ended at index 31, object end address 0x69f8058.
[compact][Mon Mar 17 18:17:44 2008][15174] Summary: 182;24;31;16;0;1;0.000;127.074;0.000;6.259;43378;54054
[compact][Mon Mar 17 18:17:44 2008][15174] Exceptional compaction size requested by allocator, not adjusting compact ratio.
[memdbg ][Mon Mar 17 18:17:44 2008][15174] gc-trigger is 12.339 %
[memdbg ][Mon Mar 17 18:17:44 2008][15174] Nursery size after OC: 335544320
[gcpause][Mon Mar 17 18:17:44 2008][15174] old collection phase 4-0 pause time: 235.501725 ms, (start time: 1934.832 s)
[gcpause][Mon Mar 17 18:17:44 2008][15174] (pause includes compaction: 0.000 ms (no compaction), update ref: 0.000 ms)
[memory ][Mon Mar 17 18:17:44 2008][15174] 1931.874-1935.068: GC 168649K->163056K (1048576K), sum of pauses 362.086 ms
[memdbg ][Mon Mar 17 18:17:44 2008][15174] Page faults before GC: 4527, page faults after GC: 4527, pages in heap: 131072
[finaliz][Mon Mar 17 18:17:44 2008][15174] (OC) Pending finalizers 0->2
[memdbg ][Mon Mar 17 18:17:44 2008][15174] Restarting of javathreads took 0.667 ms
[memdbg ][Mon Mar 17 18:17:44 2008][15174] GC reason: Large object allocation failed (7057136 bytes), cause: Alloc Queue
[memdbg ][Mon Mar 17 18:17:44 2008][15174] Stopping of javathreads took 20.308 ms
[memdbg ][Mon Mar 17 18:17:44 2008][15174] old collection 183 started
[memdbg ][Mon Mar 17 18:17:44 2008][15174] Alloc Queue size before GC: 7057136, tlas: 0, oldest: 2
[memdbg ][Mon Mar 17 18:17:44 2008][15174] Compacting 512 heap parts at index 0 (type internal) (exceptional true)
[compact][Mon Mar 17 18:17:44 2008][15174] OC 183: 512 parts (max 512), index 0. Type internal, (exceptional true)
[compact][Mon Mar 17 18:17:44 2008][15174] Area start: 0x2b00000, end: 0x42b00000
[memdbg ][Mon Mar 17 18:17:44 2008][15174] Starting initial marking phase (OC1).
[nursery][Mon Mar 17 18:17:44 2008][15174] KeepAreaStart: 0x14e0c8f0 KeepAreaEnd: 0x1a85bc48
[nursery][Mon Mar 17 18:17:44 2008][15174] Young collection started. This YC is a part of OC#183 initial marking.
[nursery][Mon Mar 17 18:17:44 2008][15174] Setting mmNurseryMarker[0] to 0xf77aa98
[nursery][Mon Mar 17 18:17:44 2008][15174] Setting mmNurseryMarker[1] to 0x14e0c8f0
[memdbg ][Mon Mar 17 18:17:44 2008][15174] Initial marking phase promoted 632 objects (18K)
[gcpause][Mon Mar 17 18:17:44 2008][15174] old collection phase 1 pause time: 133.589550 ms, (start time: 1935.151 s)
[memdbg ][Mon Mar 17 18:17:44 2008][15174] Restarting of javathreads took 0.465 ms
[memdbg ][Mon Mar 17 18:17:44 2008][15174] Starting concurrent marking phase (OC2).
[memdbg ][Mon Mar 17 18:17:48 2008][15174] Starting precleaning phase (OC3).
[memdbg ][Mon Mar 17 18:17:48 2008][15174] Stopping of javathreads took 19.590 ms
[memdbg ][Mon Mar 17 18:17:48 2008][15174] Starting final marking phase (OC4).
[nursery][Mon Mar 17 18:17:48 2008][15174] KeepAreaStart: 0x0 KeepAreaEnd: 0x0
[nursery][Mon Mar 17 18:17:48 2008][15174] Young collection started. This YC is a part of OC#183 final marking.
[compact][Mon Mar 17 18:17:48 2008][15174] Pointermatrix for thread '(GC Worker Thread 3)' failed to extend beyond 25391 elements.
[memdbg ][Mon Mar 17 18:17:48 2008][15174] Too many pointers, compaction aborted
[memdbg ][Mon Mar 17 18:17:49 2008][15174] Final marking phase promoted 126119 objects (4396K)
[memdbg ][Mon Mar 17 18:17:49 2008][15174] Removing 18 permanent work packets from pool, now 339 packets
[memdbg ][Mon Mar 17 18:17:49 2008][15174] total concurrent mark time: 4378.189 ms
[memdbg ][Mon Mar 17 18:17:49 2008][15174] ending marking phase
[memdbg ][Mon Mar 17 18:17:49 2008][15174] current error: -162.086164
[memdbg ][Mon Mar 17 18:17:49 2008][15174] Requesting to run parallel sweep since Alloc Queue is non-empty.
[memdbg ][Mon Mar 17 18:17:49 2008][15174] Will use parallel sweep instead of concurrent sweep due to request.
[memdbg ][Mon Mar 17 18:17:49 2008][15174] starting parallel sweeping phase
[memdbg ][Mon Mar 17 18:17:49 2008][15174] total sweep time: 18.297 ms
[memdbg ][Mon Mar 17 18:17:49 2008][15174] ending sweeping phase
[nursery][Mon Mar 17 18:17:49 2008][15174] Setting mmNurseryMarker[0] to 0xf75c4e8
[nursery][Mon Mar 17 18:17:49 2008][15174] Setting mmNurseryMarker[1] to 0x14dd6788
[nursery][Mon Mar 17 18:17:49 2008][15174] Nursery size increased from 0kb to 327680kb. Parts: 1307
[memdbg ][Mon Mar 17 18:17:49 2008][15174] Alloc Queue size after GC: 0, tlas: 0, oldest: 0
[compact][Mon Mar 17 18:17:49 2008][15174] Compaction pause: 0.000 (target 127.074), update ref pause: 0.000 (target 6.259)
[compact][Mon Mar 17 18:17:49 2008][15174] Updated 55716 refs: 0 inside compaction area, and 55716 outside (limit: 54054).
[compact][Mon Mar 17 18:17:49 2008][15174] Compaction ended at index 31, object end address 0x69f8058.
[compact][Mon Mar 17 18:17:49 2008][15174] Summary: 183;24;31;512;0;1;0.000;127.074;0.000;6.259;55716;54054
[compact][Mon Mar 17 18:17:49 2008][15174] Exceptional compaction size requested by allocator, not adjusting compact ratio.
[memdbg ][Mon Mar 17 18:17:49 2008][15174] gc-trigger is 12.339 %
[memdbg ][Mon Mar 17 18:17:49 2008][15174] Nursery size after OC: 335544320
[gcpause][Mon Mar 17 18:17:49 2008][15174] old collection phase 4-0 pause time: 301.755262 ms, (start time: 1939.257 s)
[gcpause][Mon Mar 17 18:17:49 2008][15174] (pause includes compaction: 0.000 ms (no compaction), update ref: 0.000 ms)
[memory ][Mon Mar 17 18:17:49 2008][15174] 1935.151-1939.559: GC 226936K->166214K (1048576K), sum of pauses 435.345 ms
[memdbg ][Mon Mar 17 18:17:49 2008][15174] Page faults before GC: 4527, page faults after GC: 4529, pages in heap: 131072
[finaliz][Mon Mar 17 18:17:49 2008][15174] (OC) Pending finalizers 0->24
[memdbg ][Mon Mar 17 18:17:49 2008][15174] Restarting of javathreads took 0.928 ms
[gcpause][Mon Mar 17 18:17:49 2008][15174] Thread "Dispatcher-Thread-19" id=79 idx=0x138 tid=78 was in object alloc 11134.471 ms from 1928.426 s
[memory ][Mon Mar 17 18:17:49 2008][15174] Throwing OutOfMemory: allocLargeObjectOrArray - Object size: 7057136, Num elements: 3528560Why was the thread "Dispatcher-Thread-19" not able to allocate 7057136 bytes within 11134.471 ms?
Cheers,
Torsten

Is it expected by your application to create StringBuilders with more than 3 million characters in them?Yes. Our application (which runs happily for years now on Sun's JVM) is producing and consuming large data streams (mostly XML). So a StringBuilder producing a string of 3 million characters ist very common. Some XML data streams consumed from database clobs have up to 10 million characters. As I said, with Sun's JVM we have no problems with fragmentation or aborted compactions with a similar sized heap (-server -Xms1g -Xmx1g -Xmn256m -XX:MaxPermSize=256m -XX:SurvivorRatio=8 -XX:TargetSurvivorRatio=95 -XX:MaxTenuringThreshold=31 -XX:+UseParNewGC -XX:ParallelGCThreads=4 -XX:-BindGCTaskThreadsToCPUs -XX:+UseConcMarkSweepGC -XX:+CMSParallelRemarkEnabled -XX:+DisableExplicitGC).
Cheers,
Torsten

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Message was edited by:
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