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JVM GC Logs. Need Info

 
Greenhorn
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Hello Folks,

The below one is a JVM log, it looks like it is logged during garbage collection, Just curious to know what individual paramters are ?

[GC 123175K->94091K(159472K) eden 30464K->0K survivor 714K->1152K tenured 91996K->92939K, 0.0289656 secs]

Any idea ?
or any literature that speaks about GC logs.

Thanks Ragav.
 
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Originally posted by Raghven k b:
Hello Folks,

The below one is a JVM log, it looks like it is logged during garbage collection, Just curious to know what individual paramters are ?

[GC 123175K->94091K(159472K) eden 30464K->0K survivor 714K->1152K tenured 91996K->92939K, 0.0289656 secs]

Any idea ?
or any literature that speaks about GC logs.

Thanks Ragav.



I am no expert on this area but the 123175K->94091K is the size of live objects on the heap before and after GC. (159472K) Is the total available space for the application.

The rest is the summary of the different generations of the heap Eden, Survivour and Tenured.

Garbage collection is quite complicated but there is a good article here article on 1.4 GC (Principles should be basically unchanged for 1.5 - 1.6)

1.4.2 GC
 
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