[PATCH v7 0/2] erofs-utils: support tail-packing inline compressed data
Gao Xiang
hsiangkao at linux.alibaba.com
Tue Dec 21 20:53:07 AEDT 2021
On Tue, Dec 21, 2021 at 05:43:19PM +0800, Gao Xiang wrote:
> Hi folks,
>
> This is a follow-up of previous v6 Yue Hu's patchset. It implements
> tail-packing inline for compressed files. In particular, called
> tail pcluster inline.
>
> Here is some evaluation of Linux 5.10.87 source code (75368 inodes):
> linux-5.10.87 (erofs, uncompressed) 972570624
>
> linux-5.10.87 (erofs, lz4hc,9 4k tailpacking) 391696384
> linux-5.10.87 (erofs, lz4hc,9 8k tailpacking) 368807936
> linux-5.10.87 (erofs, lz4hc,9 16k tailpacking) 345649152
>
> linux-5.10.87 (erofs, lz4hc,9 4k vanilla) 416079872
> linux-5.10.87 (erofs, lz4hc,9 8k vanilla) 395493376
> linux-5.10.87 (erofs, lz4hc,9 16k vanilla) 345649152
Sorry this line should be:
linux-5.10.87 (erofs, lz4hc,9 16k vanilla) 383213568
Also I forgot to mention the usage:
mkfs.erofs -zlz4hc -Eztailpacking foo.erofs.img foo/
Thanks,
Gao Xiang
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