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| author | 2023-01-13 22:24:33 +0000 | |
|---|---|---|
| committer | 2023-03-16 21:36:18 +0000 | |
| commit | 29a79cf724e6d3fd27dd092bc02952537e56757b (patch) | |
| tree | ddd623e7ce50b959d27f5c04fd7627d6aadb281c /libs/androidfw/FileStream.cpp | |
| parent | 3d961ed78da86efb193d3683531db1f1cce62274 (diff) | |
Disable file compaction by default
At present time kernel does not support shared pages to be
swapped using file compaction which uses MADV_COLD and most
of the file pages in a process are actually shared mappings
causing us to waste a lot of cycles scanning through a lot
of unreclaimable pages, this patch disables file compaction
which will be reenabled until a solution is implemented on
upstream kernel that allows reclaiming shared pages, thus
making it worth to scan all of those pages again.
Test: am compact file <processname> <uid>
Bug: 265473345
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:30b069612a9d35b02cc6c2656c18326e8cffeec6)
Merged-In: I4c819058da229c00d1eafea636f89784718adc5f
Change-Id: I4c819058da229c00d1eafea636f89784718adc5f
Diffstat (limited to 'libs/androidfw/FileStream.cpp')
0 files changed, 0 insertions, 0 deletions