gc logs [Full GC (System)

Mon Feb 7 14:05:42 PST 2011

Bheem --

On 2/7/2011 1:47 PM, bhm wrote:
> please help me understand in following 2 line if
> Full GC (System)
> means this is caused due to System.gc() call ?

Yes, the first "16.620: [Full GC" seems to be a full gc
because the perm gen became full.

The second "22.286: [Full GC (System)" seems to be one
caused by an explicit System.gc() call.

-- (rama)krishna

>
> 16.620: [Full GC 16.620: [CMS: 8849K->11102K(245760K), 0.9170804 secs]
> 34309K->11102K(277440K), [CMS Perm : 27162K->26963K(27208K)],
> 0.9180653 secs] [Times: user=0.91 sys=0.00, real=0.92 secs]
> 22.286: [Full GC (System) 22.286: [CMS: 12805K->14033K(245760K),
> 1.1113881 secs] 24546K->14033K(277440K), [CMS Perm :
> 36005K->35855K(44944K)], 1.1217119 secs] [Times: user=1.12 sys=0.01,
> real=1.12 secs]
>
> I couldnt find any explaination in following 2 links
> http://www.sun.com/bigadmin/content/submitted/cms_gc_logs.jsp
> http://www.oracle.com/technetwork/java/example-141412.html
>
> Thanks.
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