[Webkit-unassigned] [Bug 204773] [bmalloc] Move Chunk object to the very end of Chunk block.
bugzilla-daemon at webkit.org
bugzilla-daemon at webkit.org
Mon Dec 2 16:15:27 PST 2019
https://bugs.webkit.org/show_bug.cgi?id=204773
--- Comment #1 from Basuke Suzuki <Basuke.Suzuki at sony.com> ---
| [current implementation] | [tail Chunk]
page | metadata page unused unused | page
class pageSize | size count head tail | count diff unused
------------------------------------------------------------------------------------
0 4096 | 12288 253 2024 0 | 253 0 2024
1 8192 | 16384 126 6120 0 | 126 0 6120
2 12288 | 12288 84 2024 4096 | 84 0 6120
3 16384 | 16384 63 6120 0 | 63 0 6120
4 20480 | 20480 50 10216 4096 | 50 0 14312
5 24576 | 24576 41 14312 16384 | 42 1 6120
6 28672 | 28672 35 18408 16384 | 36 1 6120
7 32768 | 32768 31 22504 0 | 31 0 22504
8 36864 | 36864 27 26600 16384 | 28 1 6120
9 40960 | 40960 24 30696 24576 | 25 1 14312
10 45056 | 45056 22 34792 12288 | 23 1 2024
11 49152 | 49152 20 38888 16384 | 21 1 6120
12 53248 | 53248 18 42984 36864 | 19 1 26600
13 57344 | 57344 17 47080 16384 | 18 1 6120
14 61440 | 61440 16 51176 4096 | 16 0 55272
15 65536 | 65536 15 55272 0 | 15 0 55272
This is a quick research. We can get extra page in pageClass of 5, 6, 8, 9, 10, 11, 12 and 13.
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