Hi,
I’ve noticed that images are all using the ZIP algorithm which seems… pretty inefficient, compared to others:
-rw-r--r-- 1 user user 2862059520 5 sept. 22:34 eos-r18.tar
-rw-r--r-- 1 user user 946774568 5 sept. 22:56 eos-r18.tar.pxz
-rw-r--r-- 1 user user 902393948 5 sept. 22:34 eos-r18.tar.xz
-rw-r--r-- 1 user user 1257669422 5 sept. 22:45 eos-r18.tar.zip
-rw-r--r-- 1 user user 1032798439 5 sept. 22:34 eos-r18.tar.zst
.tar is a simple TAR archive from the downloaded ZIP, uncompressed.
.tar.pxz was created with pixz -6 -k eos-r18.tar eos-r18.tar.pxz
.tar.xz with xz -9 -k eos-r18.tar
.tar.zip with zip -9 eos-r18.tar.zip eos-r18.tar
.tar.zst with zstd -19 -k -T0 eos-r18.tar
The difference seems worth it to me.
So… is there any technical reason for using ZIP instead of a better alternative? Memory needed for decompression? AOSP supported image format?