Hmm, looks like the garbage collector got hungry again: 1093,741,664,672 bytes allocated in the heap 1006,759,632,160 bytes copied during GC (scavenged) 72,181,353,728 bytes copied during GC (not scavenged) 400,940,412 bytes maximum residency (8853 sample(s)) 76353 collections in generation 0 (3724.54s) 8853 collections in generation 1 (19689.00s) 1065 Mb total memory in use INIT time 0.00s ( 0.00s elapsed) MUT time 2619.54s (3103.46s elapsed) GC time 23413.54s (23569.24s elapsed) RP time 0.00s ( 0.00s elapsed) PROF time 2167.91s (2204.09s elapsed) EXIT time 0.00s ( 0.08s elapsed) Total time 28201.00s (28876.80s elapsed) %GC time 83.0% (81.6% elapsed) Alloc rate 417,531,666 bytes per MUT second Productivity 9.3% of total user, 9.1% of total elapsed And that was with -H700M. What a shame the heap profiler (-hb) aborts on my program. :-( Still, -hc and -hd seem to work, the only hassle is the hours of running time required to get things to go bad. cheers, T. -- Dr Thomas Conway drtomc@gmail.com Silence is the perfectest herald of joy: I were but little happy, if I could say how much.