Support ZSTD in userspace COW
Perf:
Lz4:
Update took 429 seconds
merge time 35.4s
cow size: 3.18GB
ZSTD:
Update took 676 seconds
merge time 49.4s
cow size: 2.62GB
Gz:
Update took 1057 seconds
merge time: 50.0s
cow size: 2.55GB
In summary, ZSTD is a middle point between LZ4 and GZ.
Speed: LZ4 > ZSTD > GZ
Space: LZ4 > ZSTD > GZ
Bug: 274129758
Change-Id: I203bf088b7c2a9ce429f75478799da0e7126febf
diff --git a/init/Android.bp b/init/Android.bp
index 7b52903..41c7a95 100644
--- a/init/Android.bp
+++ b/init/Android.bp
@@ -169,6 +169,7 @@
"libfsverity_init",
"liblmkd_utils",
"liblz4",
+ "libzstd",
"libmini_keyctl_static",
"libmodprobe",
"libprocinfo",
@@ -370,6 +371,7 @@
"libprotobuf-cpp-lite",
"libsnapshot_cow",
"liblz4",
+ "libzstd",
"libsnapshot_init",
"update_metadata-protos",
"libprocinfo",