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GC output interpretation and Further steps required

 
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Hi All,

Here is the Sample GC output, can anyone interpret the terms involved in it and kindly suggest me the next steps to be taken for improving performance of the application.


((Part of GC ouput))

<af type="tenured" id="10" timestamp="Mon Aug 10 08:13:54 2009" intervalms="27924911.935">
<minimum requested_bytes="16688" />
<time exclusiveaccessms="0.098" />
<tenured freebytes="19337936" totalbytes="2147483648" percent="0" >
<soa freebytes="10960" totalbytes="2128156672" percent="0" />
<loa freebytes="19326976" totalbytes="19326976" percent="100" />
</tenured>
<gc type="global" id="10" totalid="10" intervalms="27924963.771">
<refs_cleared soft="0" weak="16518" phantom="0" />
<finalization objectsqueued="56151" />
<timesms mark="1218.454" sweep="168.753" compact="0.000" total="1387.766" />
<tenured freebytes="1530006952" totalbytes="2147483648" percent="71" >
<soa freebytes="1512827304" totalbytes="2130304000" percent="71" />
<loa freebytes="17179648" totalbytes="17179648" percent="100" />
</tenured>
</gc>
<tenured freebytes="1529990264" totalbytes="2147483648" percent="71" >
<soa freebytes="1512810616" totalbytes="2130304000" percent="71" />
<loa freebytes="17179648" totalbytes="17179648" percent="100" />
</tenured>
<time totalms="1471.277" />
</af>

<af type="tenured" id="11" timestamp="Mon Aug 10 15:03:24 2009" intervalms="24568669.337">
<minimum requested_bytes="16688" />
<time exclusiveaccessms="0.165" />
<tenured freebytes="17179648" totalbytes="2147483648" percent="0" >
<soa freebytes="0" totalbytes="2130304000" percent="0" />
<loa freebytes="17179648" totalbytes="17179648" percent="100" />
</tenured>
<gc type="global" id="11" totalid="11" intervalms="24568759.016">
<classloadersunloaded count="0" timetakenms="4.010" />
<refs_cleared soft="20" weak="14679" phantom="14" />
<finalization objectsqueued="50195" />
<timesms mark="3407.149" sweep="638.854" compact="0.000" total="4054.045" />
<tenured freebytes="1576615808" totalbytes="2147483648" percent="73" >
<soa freebytes="1561583488" totalbytes="2132451328" percent="73" />
<loa freebytes="15032320" totalbytes="15032320" percent="100" />
</tenured>
</gc>
<tenured freebytes="1576599120" totalbytes="2147483648" percent="73" >
<soa freebytes="1561566800" totalbytes="2132451328" percent="73" />
<loa freebytes="15032320" totalbytes="15032320" percent="100" />
</tenured>
<time totalms="4394.207" />
</af>
 
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