JDK-7025742 : Can not use CodeCache::unallocated_capacity() with fragmented CodeCache
- Type: Bug
- Component: hotspot
- Sub-Component: compiler
- Affected Version: hs21
- Priority: P4
- Status: Closed
- Resolution: Fixed
- OS: generic
- CPU: generic
- Submitted: 2011-03-08
- Updated: 2013-01-30
- Resolved: 2011-04-24
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| JDK 7 | Other |
|---|---|
7Fixed  |
hs21Fixed |
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Description
In the bug report 7009641 there was no space left in CodeCache to create vtable_stub but unallocated_capacity() reports that it still has 600Kb of free space. But free space is very fragmented and the largest free block is only 384 bytes. Code Cache [0xf35ff000, 0xf75ff000, 0xf75ff000) total_blobs=31835 nmethods=31389 adapters=372 free_code_cache=629120 largest_free_block=384 http://vmsqe.russia.sun.com/execution/results/JDK7/PROMOTION/VM/PERMGEN/7/b129_permgen/2011-02-17/SerialGC/bigapps/linux-i586/client/comp/linux-i586_bigapps__client_comp_runThese/runThese/
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