x86 .net application with system.OutOfMemoryException
- by Allen
Hi,Guys
I got OutOfMemoryException after the app running for 1 day, the app totally use 1.5G memory , all consumed by managed heap, gen 2 used 200mb , and LOB used 1.3mb, however the weired thing is, 900mb of space are Free. from perf counter I saw there had number of gen 2 gc collection happened, why GC collector cannot collect those 900mb free space in gen2 and LOB?
I'm really appreicate for your help.
following info are from windbg:
0:000> !eeheap -gc
Number of GC Heaps: 1
generation 0 starts at 0x183153f0
generation 1 starts at 0x182aa834
generation 2 starts at 0x02131000
ephemeral segment allocation context: none
segment begin allocated size
02130000 02131000 0312f284 0xffe284(16769668)
07750000 07751000 0874fc5c 0xffec5c(16772188)
09e30000 09e31000 0ae2fc2c 0xffec2c(16772140)
0b230000 0b231000 0c22ffec 0xffefec(16773100)
0c230000 0c231000 0d22f6f0 0xffe6f0(16770800)
0d230000 0d231000 0e22ea10 0xffda10(16767504)
0e230000 0e231000 0f22c1c4 0xffb1c4(16757188)
10390000 10391000 1138ddf4 0xffcdf4(16764404)
154e0000 154e1000 164da90c 0xff990c(16750860)
34aa0000 34aa1000 35a9dbfc 0xffcbfc(16763900)
7aca0000 7aca1000 7bc9edfc 0xffddfc(16768508)
49760000 49761000 4a75ef64 0xffdf64(16768868)
7bca0000 7bca1000 7cc99bac 0xff8bac(16747436)
17a70000 17a71000 183313fc 0x8c03fc(9176060)
Large object heap starts at 0x03131000
segment begin allocated size
03130000 03131000 041250c8 0xff40c8(16728264)
08920000 08921000 099102f8 0xfef2f8(16708344)
....
....
4c760000 4c761000 4d71d578 0xfbc578(16500088)
1bb10000 1bb11000 1ca110d0 0xf000d0(15728848)
57760000 57761000 5862d7f8 0xecc7f8(15517688)
Total Size: Size: 0x5ab13450 (1521562704) bytes.
------------------------------
GC Heap Size: Size: 0x5ab13450 (1521562704) bytes.
0:000> !dumpheap -stat
total 0 objects
Statistics:
MT Count TotalSize Class Name
73037c78 1 12 System.Configuration.GenericEnumConverter
73036da0 1 12 System.Configuration.InfiniteIntConverter
....
....
69161c3c 35025 6809420 System.Windows.EffectiveValueEntry[]
69164748 54 12471072 MS.Internal.WeakEventTable+EventKey[]
710e2228 9540 190389260 System.Byte[]
710dd2b8 1317031 339257932 System.String
0035a670 6427 902224056 Free
Total 3615631 objects