[OpenWrt-Devel] procd: patch to support busybox mkfs.ext2

[Luke McKee]

Actually lzo compresses better but they are both fast. lz4 is faster
on embedded devices.

zram-swap should use lz4 if available and the patch can be as it
was.http://blog.jpountz.net/post/28092106032/wow-lz4-is-fast

<mangix> lz4 has compression levels. in any case, speed > size on
embedded devices. interestingly enough, higher lz4 compression yields
faster decompression
<hojuruku> http://www.ilsistemista.net/index.php/linux-a-unix/44-linux-compressors-comparison-on-centos-6-5-x86-64-lzo-vs-lz4-vs-gzip-vs-bzip2-vs-lzma.html?start=4

They are mostly the same. On average 2.8 compression ratio in lz4 vs
3.0 in lzo. Can't hurt to go with the fastest.


On 3 July 2016 at 07:10, Luke McKee <hojuruku at gmail.com> wrote:
> v2 of the patch. uses lz4 compression by default. lz4 is always
> installed by openwrt Makefile Config.in if zram.
>
> lz4 is best for compressed filesystems as we all know (if you had to
> choose between that and lzo).
> zram-swap can keep using lzo for speed!
>
> I'll work in a compatibility patch for zram-swap script next to see if
> zram0 is already being used and hot-add a new device.
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