Comments (3)
This is what as expected. Since EROFS uses 4kb fixed-sized output compression,
but squashfs uses 128kb fixed-sized input compression by default.
the comparable options are:
mksquashfs /run/WORK/CHROOT.NEW/ tmp/chroot.sqfs -b 4096 -noappend -comp lz4 -no-xattrs
mksquashfs /run/WORK/CHROOT.NEW/ tmp/chroot.sqfs -b 8192 -noappend -comp lz4 -no-xattrs
and the performance benefit is against all squashfs options (no matter 4kb/8kb or 128kb..)
In principle, EROFS could support 128kb fixed-sized output compression in
the future as well, but for our current use scenario (Android smartphone),
128kb+4kb out of 4kb random I/O at once is not attractive, so I can only
say it's still on the wishlist. Since we never considered 128kb block size
in smartphone products at all.
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Ok, thanks for your explanation Regards, Nicolas
Ok, I will close the issue.
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