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garbage collection whoos.....

 
kees jan voogd
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Posts: 2
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Hi,
We seem to have an over active garbage collector when our system is getting busy.
We are running websperhe 3.52 with most of the efixes on AIX. Max and initial heap size are 1 gig.
At some point in time the system becomes unresponsive and gc takes up to 80% of cpu time. If we take stats for longer periods of time gc cpu utilization falls below 18% cpu time...
Any body seen something like this before?? Or has some insights???

<AF[608]: Allocation Failure. need 5160976 bytes, 620 ms since last AF>
<AF[608]: managing allocation failure, action=2 (780841192/1073741816)>
<GC(711): freed 80005272 bytes in 727 ms, 80% free (860846464/1073741816)>
<GC(711): mark: 572 ms, sweep: 155 ms, compact: 0 ms>
<GC(711): refs: soft 0 (age >= 32), weak 0, final 183, phantom 0>
<AF[608]: completed in 735 ms>
<AF[609]: Allocation Failure. need 5177360 bytes, 200 ms since last AF>
<AF[609]: managing allocation failure, action=2 (837339496/1073741816)>
<GC(712): freed 22019216 bytes in 726 ms, 80% free (859358712/1073741816)>
<GC(712): mark: 571 ms, sweep: 155 ms, compact: 0 ms>
<GC(712): refs: soft 0 (age >= 32), weak 0, final 38, phantom 0>
<AF[609]: completed in 792 ms>
<AF[610]: Allocation Failure. need 5193744 bytes, 111 ms since last AF>
<AF[610]: managing allocation failure, action=2 (846853720/1073741816)>
<GC(713): freed 12451896 bytes in 726 ms, 80% free (859305616/1073741816)>
<GC(713): mark: 571 ms, sweep: 155 ms, compact: 0 ms>
<GC(713): refs: soft 0 (age >= 32), weak 0, final 32, phantom 0>
<AF[610]: completed in 735 ms>

..... klvoogd@euronet.nl
 
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