[Mono-dev] Mono memory problems!
David Isaac Wolinsky
davidiw at ufl.edu
Wed Jul 18 01:08:29 EDT 2007
My lab works on a peer-to-peer network overlay and we've noticed
recently significant memory issues. Some background...
This application is constantly creating new objects and shortly
thereafter deleting (removing reference to) them
Using a sample run with 150 threads running...
Mono on Linux has a growth rate of ~25 KB per second with a base of 50MB
(y = 25K *x + 50M)
.NET on Windows stabilizes at 35 MB
We ran heap-shot with Linux and found that in a 12 hour period it
heap memory: 6,838,426 bytes
heap memory: 6,862,336
We have run mono with GC_MAXIMUM_HEAP_SIZE and the memory size (RES) got
significantly bigger than it.
I have searched for the Compacting GC with no luck, we would really like
to see if it would help our problem.
The only operating system resources we're using are Sockets, but we use
them VERY heavily!
If anyone has any suggestions, we'd be open to test out anything at this
We are leaning towards an issue in unmanaged memory and possibly a bug
ps, I fwded this to gc and devel list because gc list looks quite
dead.... sorry for the duplication
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