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From bugzi...@apache.org
Subject DO NOT REPLY [Bug 31405] - [Documentation RFE] unpackwar implications (slow startup)
Date Tue, 05 Oct 2004 06:42:48 GMT
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http://issues.apache.org/bugzilla/show_bug.cgi?id=31405

[Documentation RFE] unpackwar implications (slow startup)





------- Additional Comments From hauser@acm.org  2004-10-05 06:42 -------
further observations that may help others:
1) when setting CATALINA_OPTS="-verbose:gc" I see about 300 garbage collections:
[GC 18619K->3026K(260160K), 0.0217930 secs]
[GC 19218K->3011K(260160K), 0.0047730 secs]
[GC 19191K->3011K(260160K), 0.0033220 secs]
[GC 19203K->3013K(260160K), 0.0039100 secs]
[GC 19205K->3100K(260160K), 0.0047540 secs]
[GC 19292K->3125K(260160K), 0.0045940 secs]
[GC 19316K->3143K(260160K), 0.0042910 secs]
[GC 19328K->3167K(260160K), 0.0043550 secs]
...
[GC 19654K->3458K(260160K), 0.0009390 secs]
[Full GC 12290K->3530K(260160K), 0.0917670 secs]
[GC 19784K->3811K(260224K), 0.0043500 secs]
...
[GC 20465K->4217K(260224K), 0.0011250 secs]
[GC 20471K->4215K(260224K), 0.0010260 secs]
[GC 20466K->4222K(260224K), 0.0010590 secs]
[GC 20478K->4242K(260224K), 0.0013500 secs]

2) when running jprobe memorydebugger, it ends up with excessive memory use and
swapping such that a warm reboot of the machine is more promising than waiting
for the console to respond on simple key entries ... (gijs.bruyn@quest.com from
JProbe support suspects unpack=false to be the main culprit)

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