commit 5cb1b0295e5fa2145b64e786d46220ee387397b5
author Kelvin Zhang <zhangkelvin@google.com> Mon Apr 11 17:29:27 2022 -0700
committer Kelvin Zhang <zhangkelvin@google.com> Wed Jun 29 13:10:55 2022 -0700
tree 106eb15b51b6de321df609fe987f4ec6d5939c8c
parent 4a2beb8d6a5249ceb09a34b306677d37876a0bb2

Add lz4 support for VABC

Add lz4 support in CowWriter/CowReader. Lz4 should offer faster
read/write performance but slightly larger COW sizes.

Download time: Reduced from 1264s to 825s (~35% faster)
Filesystem verification time: from 69s to 59s (~15% faster)
COW Size: 2.59GB to 3.21GB, (~25% regression)
Merge time: 37046ms to 27690ms (~25% faster)
Boot time: LZ4 is 2.7% faster

Overall, LZ4 offers faster read/write performance at the cost of 25%
space regression.

Test: th
Bug: 228478555
Change-Id: Ie521852fb3c9ff8a12e55b764c1eb1838f7b2181

init/Android.bp

diff --git a/init/Android.bp b/init/Android.bp
index b4bc170..2dd9683 100644
--- a/init/Android.bp
+++ b/init/Android.bp
@@ -164,6 +164,7 @@
         "libcgrouprc_format",
         "libfsverity_init",
         "liblmkd_utils",
+        "liblz4",
         "libmini_keyctl_static",
         "libmodprobe",
         "libprocinfo",
@@ -362,6 +363,7 @@
         "libext2_uuid",
         "libprotobuf-cpp-lite",
         "libsnapshot_cow",
+        "liblz4",
         "libsnapshot_init",
         "update_metadata-protos",
         "libprocinfo",