Re: [PATCH] erofs: move erofs out of staging

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Hi Richard,

On Sat, Aug 17, 2019 at 11:19:50PM +0200, Richard Weinberger wrote:
> ----- Urspr?ngliche Mail -----
> > Von: "Gao Xiang" <hsiangkao@xxxxxxx>
> > An: "Greg Kroah-Hartman" <gregkh@xxxxxxxxxxxxxxxxxxx>, "Al Viro" <viro@xxxxxxxxxxxxxxxxxx>, "linux-fsdevel"
> > <linux-fsdevel@xxxxxxxxxxxxxxx>, devel@xxxxxxxxxxxxxxxxxxxx, linux-erofs@xxxxxxxxxxxxxxxx, "linux-kernel"
> > <linux-kernel@xxxxxxxxxxxxxxx>
> > CC: "Andrew Morton" <akpm@xxxxxxxxxxxxxxxxxxxx>, "Stephen Rothwell" <sfr@xxxxxxxxxxxxxxxx>, "tytso" <tytso@xxxxxxx>,
> > "Pavel Machek" <pavel@xxxxxxx>, "David Sterba" <dsterba@xxxxxxx>, "Amir Goldstein" <amir73il@xxxxxxxxx>, "Christoph
> > Hellwig" <hch@xxxxxxxxxxxxx>, "Darrick J . Wong" <darrick.wong@xxxxxxxxxx>, "Dave Chinner" <david@xxxxxxxxxxxxx>,
> > "Jaegeuk Kim" <jaegeuk@xxxxxxxxxx>, "Jan Kara" <jack@xxxxxxx>, "richard" <richard@xxxxxx>, "torvalds"
> > <torvalds@xxxxxxxxxxxxxxxxxxxx>, "Chao Yu" <yuchao0@xxxxxxxxxx>, "Miao Xie" <miaoxie@xxxxxxxxxx>, "Li Guifu"
> > <bluce.liguifu@xxxxxxxxxx>, "Fang Wei" <fangwei1@xxxxxxxxxx>, "Gao Xiang" <gaoxiang25@xxxxxxxxxx>
> > Gesendet: Samstag, 17. August 2019 10:23:13
> > Betreff: [PATCH] erofs: move erofs out of staging
> 
> > EROFS filesystem has been merged into linux-staging for a year.
> > 
> > EROFS is designed to be a better solution of saving extra storage
> > space with guaranteed end-to-end performance for read-only files
> > with the help of reduced metadata, fixed-sized output compression
> > and decompression inplace technologies.
>  
> How does erofs compare to squashfs?
> IIUC it is designed to be faster. Do you have numbers?
> Feel free to point me older mails if you already showed numbers,
> I have to admit I didn't follow the development very closely.

You can see the following related material which has microbenchmark
tested on my laptop:
https://static.sched.com/hosted_files/kccncosschn19eng/19/EROFS%20file%20system_OSS2019_Final.pdf

which was mentioned in the related topic as well:
https://lore.kernel.org/r/20190815044155.88483-1-gaoxiang25@xxxxxxxxxx/

Thanks,
Gao Xiang

> 
> Thanks,
> //richard
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