[Bug 30839] BSTR cache corrupts most of cached BSTR entries

wine-bugs at winehq.org wine-bugs at winehq.org
Fri Jun 22 08:29:52 CDT 2012


http://bugs.winehq.org/show_bug.cgi?id=30839

--- Comment #15 from Dmitry Timoshkov <dmitry at baikal.ru> 2012-06-22 08:29:52 CDT ---
(In reply to comment #14)
> This patch keeps a buffer in a bucked for smaller buffers if accurate bucked is
> full. This was we keep it alive for longer time, but at cost of wasted memory.
> We already do similar trick when we look for a buffer in cache (if we don't
> have matching buffer, we try to use a bit bigger one). If we keep extending the
> cache implementation this way, we risk a serious waste of memory, which I'd
> much rather avoid in such a common memory allocator. So, with this patch, the
> semantic is preserved, but it needs more thoughts.

I played a bit with the affected application + the patch, and looked for
memory consumption: I didn't notice any visible change in memory usage
statistics in comparison with one without the patch.

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