Re: GC leaks debugging
Erik Groeneveld <[email protected]>
| Newsgroups | gmane.comp.gcc.java.devel |
|---|---|
| Message-ID | <[email protected]> |
[...] >> Any real program produces so much blacklist messages that it hardly >> runs. I'd like to investigate this or am I on the wrong track >> completely? > > I think you are. The heap is small in this simple test case, so there > are no real problems. I will ignore this for now then. > You need to find out what the real problem is. Find just one of those > "need to allocate large block" messages, and find out why it is being > called. I suspect that there is an actual bug that is causing the > explosion and it can be found. Forget about 991 blacklist messages: > not useful. I have done many tests, with different programs, which all run flawlessly on OpenJDK, but explode on GCJ. I have run some test last night, and I'll see from the logs that the heap is 1 GB, while about 700 MB of it is free. Also it seems that the finalization table keeps growing. I am running now, but later this day I'll post the log. (And search the mail archives with a new keyword: finalization ;-) > I'd have a look myself, but there is no way to duplicate your problem. > BTW, is this on a 32-bit or 64-bit platform? It is on 32-bit. On 64 bit, the blacklisting is not happening. But the heap keeps exploding, so you are right, the problem probably lies elsewhere. (Although I still feel sorry for the poor GC on 32 bit systems ;-) Thanks a lot. Erik