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SubjectRe: [PATCH v2] erofs: drop all vle annotations for runtime names
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On 2019/11/8 11:37, Gao Xiang wrote:
> VLE was an old informal name of fixed-sized output
> compression came from released ATC'19 paper [1].
>
> Drop those old annotations since erofs can handle
> all encoded clusters in block-aligned basis, which
> is wider than fixed-sized output compression after
> larger clustersize feature is fully implemented.
>
> Unaligned encoded data won't be considered in EROFS
> since it's not friendly to inplace I/O and decompression
> inplace.
>
> a) Fixed-sized output compression with 16KB pcluster:
> ___________________________________
> |xxxxxxxx|xxxxxxxx|xxxxxxxx|xxxxxxxx|
> |___ 0___|___ 1___|___ 2___|___ 3___| physical blocks
>
> b) Block-aligned fixed-sized input compression with
> 16KB pcluster:
> ___________________________________
> |xxxxxxxx|xxxxxxxx|xxxxxxxx|xxx00000|
> |___ 0___|___ 1___|___ 2___|___ 3___| physical blocks
>
> c) Block-unaligned fixed-sized input compression with
> 16KB compression unit:
> ____________________________________________
> |..xxxxxx|xxxxxxxx|xxxxxxxx|xxxxxxxx|x.......|
> |___ 0___|___ 1___|___ 2___|___ 3___|___ 4___| physical blocks
>
> Refine better names for those as well.
>
> [1] https://www.usenix.org/conference/atc19/presentation/gao
>
> Cc: Chao Yu <yuchao0@huawei.com>
> Signed-off-by: Gao Xiang <gaoxiang25@huawei.com>

Reviewed-by: Chao Yu <yuchao0@huawei.com>

Thanks,

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