[Webkit-unassigned] [Bug 204773] [bmalloc] Move Chunk object to the very end of Chunk block.

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=204773

--- Comment #3 from Basuke Suzuki <Basuke.Suzuki at sony.com> ---
Also unified unused memory region are easy to decommit at the beginning of chunk creation and won't be used until returned to large free. We will get additional decommittable pages like this:

                  | decommitable
page              | pages
class   pageSize  | 4k      16k
----------------------------------
0       4096      | 0       0
1       8192      | 1       0
2       12288     | 1       0
3       16384     | 1       0
4       20480     | 3       0
5       24576     | 1       0
6       28672     | 1       0
7       32768     | 5       1
8       36864     | 1       0
9       40960     | 3       0
10      45056     | 0       0
11      49152     | 1       0
12      53248     | 6       1
13      57344     | 1       0
14      61440     | 13      3
15      65536     | 13      3

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