| commit | dee5225b6ccc3066a5167f2f682e6a45376cf300 | [log] [tgz] |
|---|---|---|
| author | Yifan Hong <elsk@google.com> | Tue Mar 10 12:18:11 2020 -0700 |
| committer | Yifan Hong <elsk@google.com> | Wed Mar 11 12:10:32 2020 -0700 |
| tree | b506d0e1b7eff0eba408e7737d8ee735f086d18f | |
| parent | eb20ff0be0b04b91aeaf78b59aa9b218baa69cac [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