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| author | Igor Murashkin <iam@google.com> | 2017-02-07 15:20:54 -0800 |
|---|---|---|
| committer | Igor Murashkin <iam@google.com> | 2017-02-10 10:33:12 -0800 |
| commit | 19e5f834501c5e69fbd731038b88c10332cc6bc7 (patch) | |
| tree | 439e382f697ed114e117d7ae21dc818f17ec8187 /test/ProfileTestMultiDex/Second.java | |
| parent | e4530079672682ff3900d84c08b666a6a899d973 (diff) | |
runtime: Mmap uncompressed dex files (in zip) as clean memory
Saves 3MB of RAM (system-wide) in AGSA (search toolbar).
Also makes 3MB of RAM clean (previously dirty).
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classes.dex from different processes will now have
their memory shared (as clean) globally.
To take advantage of this, the app/service just
needs to build their .JARs zipaligned and with
classes.dex being stored uncompressed.
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classes[N].dex within ZIP files will now get memory-mapped
as file-backed, clean memory when opening a DexFile.
(The zip entry must be at least 4-byte aligned).
Compressed DEX files still get extracted first to dirty memory.
Test: art/tools/run-test 071-dexfile-map-clean
Bug: 27650033
Change-Id: I18efbd392c5980ffe0d983833b6cc581e0237b92
Diffstat (limited to 'test/ProfileTestMultiDex/Second.java')
0 files changed, 0 insertions, 0 deletions