| commit | d8a38e7c230eec27ebfeaf2640765adfa508f25b | [log] [tgz] |
|---|---|---|
| author | Yifan Hong <elsk@google.com> | Tue Mar 10 12:18:11 2020 -0700 |
| committer | Yifan Hong <elsk@google.com> | Thu Mar 12 10:00:12 2020 -0700 |
| tree | 059ca847d5eb609fe810861a8c3a996b05582a85 | |
| parent | f9783dc18df4b7b298762fdb15c83cf3dfc1a8f7 [diff] |
Add OptimizeSourceCopyOperation
... so that an operation can be skipped partially. For example, if
an operation contains blocks:
563412 -> 123456
... then optimized operation is:
5612 -> 1256
Test: update_engine_unittests
Test: apply incremental OTA
Bug: 148623880
In an experiment, this reduces CoW size of an incremental update
package by 200MB (out of 700MB).
Change-Id: I86ca23fd589ddbc84c81318283b5f4e71782a759
Merged-In: I86ca23fd589ddbc84c81318283b5f4e71782a759