Garbage Collection Settings

[m]

Hi All

I have the following snippet from GC logs:

Can we determine settings of VM?
Are these settings too high, I mean is large amount of memory thrown
at it?
Also based on pattern in used Tenured Generation ( Ex: 271844K) can I
determine a memory leak.
Is it good or bad to use these kind of settings.

Please let me know.

Bib

Heap
def new generation total 104832K, used 57076K [0x10010000, 0x171d0000,
0x171d0000)
eden space 93184K, 51% used [0x10010000, 0x12f32e20, 0x15b10000)
from space 11648K, 75% used [0x15b10000, 0x163aa270, 0x16670000)
to space 11648K, 0% used [0x16670000, 0x16670000, 0x171d0000)
tenured generation total 932096K, used 409688K [0x171d0000,
0x50010000, 0x50010000)
the space 932096K, 43% used [0x171d0000, 0x301e6148, 0x301e6200,
0x50010000)
compacting perm gen total 131072K, used 75403K [0x50010000,
0x58010000, 0x58010000)
the space 131072K, 57% used [0x50010000, 0x549b2e10, 0x549b3000,
0x58010000)
33256.362: [Tenured: 409688K->271844K(932096K), 1.8892192 secs]
466764K->271844K(1036928K), [Perm : 75403K->75403K(131072K)] Heap
after GC invocations=121:
Heap
def new generation total 104832K, used 0K [0x10010000, 0x171d0000,
0x171d0000)
eden space 93184K, 0% used [0x10010000, 0x10010000, 0x15b10000)
from space 11648K, 0% used [0x15b10000, 0x15b10000, 0x16670000)
to space 11648K, 0% used [0x16670000, 0x16670000, 0x171d0000)
tenured generation total 932096K, used 271844K [0x171d0000,
0x50010000, 0x50010000)
the space 932096K, 29% used [0x171d0000, 0x27b49228, 0x27b49400,
0x50010000)
compacting perm gen total 131072K, used 75403K [0x50010000,
0x58010000, 0x58010000)
the space 131072K, 57% used [0x50010000, 0x549b2e10, 0x549b3000,
0x58010000)
} , 1.8893669 secs]
Total time for which application threads were stopped: 1.9019171
seconds