[Gc] Atomic page-sized blocks
dej at inode.org
Thu Feb 26 14:07:36 PST 2004
In order to debug memory use in my application, I am traversing the collected
heap (using GC_apply_to_all_blocks()) and testing each object using
I am coming across several objects allocated pointer-free, each 4096 bytes
long, my page size. I cannot find where in my application I am allocating
them - I am using the debug versions of GC_malloc_*() and all my other
objects are tracing back properly.
Does the collector use zeroed pages interally for some reason, say, awaiting
redeployment for future allocations? Strange that they are marked, though.
Is GC_is_marked() reliable for objects bigger than a page?
I am seeing 10-20% of my heap space taken by these objects, so I am interested
in tracking them down.
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