From: Gao Xiang <gaoxiang25@huawei.com>
To: Richard Weinberger <richard@sigma-star.at>
Cc: LKML <linux-kernel@vger.kernel.org>,
linux-fsdevel <linux-fsdevel@vger.kernel.org>,
<miaoxie@huawei.com>, <yuchao0@huawei.com>,
<sunqiuyang@huawei.com>, <fangwei1@huawei.com>,
<liguifu2@huawei.com>, <weidu.du@huawei.com>,
<chen.chun.yen@huawei.com>, <brooke.wangzhigang@hisilicon.com>,
<dongjinguang@huawei.com>
Subject: Re: [NOMERGE] [RFC PATCH 00/12] erofs: introduce erofs file system
Date: Fri, 1 Jun 2018 19:16:00 +0800 [thread overview]
Message-ID: <863d726d-e919-9ee1-56e4-994c8ab09f4b@huawei.com> (raw)
In-Reply-To: <1670077.cnVahIradn@blindfold>
On 2018/6/1 17:28, Richard Weinberger wrote:
> Am Freitag, 1. Juni 2018, 11:11:21 CEST schrieb Gao Xiang:
>>> In which sense is it extendable?
>>
>> Actually, the meaning of an enhanced (means not just read-only, but with the scalable
>> on-disk layout, compression, or fs-verify in the future) read-only file system is emphasized.
>
> ah ok.
>
>> We also think of other candidate full names, such as
>> Enhanced / Extented Read-only File System, all the names short for "erofs" are okay.
>
> TBH, I read "erofs" as "error fs". ;-)
eh..."erofs" indeed comes from the EROFS error code, that is a playful behaviour...
I think the error code of EROFS is not so bad... :'(
Also hope for a better name but not only highlight the compression...
We have some further plans other than the compression.
Anyway, the name is currently not vital tho. :D
>
>>> How does it compare to existing read only filesystems, such as squashfs?
>>>
>>
>> You are quite right.
>>
>> We are now focusing on improving our decompression subsystem and
>> these numbers will be successively added in the future non-RFC patches.
>>
>> We haven't pay much attention on comparing squashfs and erofs
>> yet since we once tried to use squashfs on our products with
>> different block sizes several years ago, it behaves
>> unacceptable in the low free memory scenario besides its
>> performance.
>
> I'm interested in the comparison because I use squashfs often
> for embedded devices on top of ubiblock (raw nand).
> If there is something that can do better, I'm all for it.
>
We're trying our best. ;)
> Thanks,
> //richard
>
Thanks,
next prev parent reply other threads:[~2018-06-01 11:16 UTC|newest]
Thread overview: 58+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-05-31 11:06 Gao Xiang
2018-06-01 7:48 ` Richard Weinberger
2018-06-01 9:11 ` Gao Xiang
2018-06-01 9:28 ` Richard Weinberger
2018-06-01 11:16 ` Gao Xiang [this message]
2018-06-07 10:26 ` Pavel Machek
2018-07-27 0:55 ` Joey Pabalinas
2018-07-27 0:57 ` Joey Pabalinas
2018-07-26 12:21 ` [PATCH 00/25] staging: " Gao Xiang
2018-07-26 12:21 ` [PATCH 01/25] staging: erofs: add on-disk layout Gao Xiang
2018-07-26 12:21 ` [PATCH 02/25] staging: erofs: add erofs in-memory stuffs Gao Xiang
2018-07-26 12:21 ` [PATCH 03/25] staging: erofs: add super block operations Gao Xiang
2018-07-26 12:21 ` [PATCH 04/25] staging: erofs: add raw address_space operations Gao Xiang
2018-07-26 12:21 ` [PATCH 05/25] staging: erofs: add inode operations Gao Xiang
2018-07-26 12:21 ` [PATCH 06/25] staging: erofs: add directory operations Gao Xiang
2018-07-26 12:21 ` [PATCH 07/25] staging: erofs: add namei functions Gao Xiang
2018-07-26 12:21 ` [PATCH 08/25] staging: erofs: update Kconfig and Makefile Gao Xiang
2018-07-26 12:21 ` [PATCH 09/25] staging: erofs: introduce xattr & acl support Gao Xiang
2018-07-26 12:21 ` [PATCH 10/25] staging: erofs: support special inode Gao Xiang
2018-07-26 12:21 ` [PATCH 11/25] staging: erofs: introduce error injection infrastructure Gao Xiang
2018-07-26 12:21 ` [PATCH 12/25] staging: erofs: support tracepoint Gao Xiang
2018-07-26 12:21 ` [PATCH 13/25] staging: erofs: <linux/tagptr.h>: introduce tagged pointer Gao Xiang
2018-07-26 12:21 ` [PATCH 14/25] staging: erofs: introduce pagevec for unzip subsystem Gao Xiang
2018-07-26 12:21 ` [PATCH 15/25] staging: erofs: add erofs_map_blocks_iter Gao Xiang
2018-07-26 12:21 ` [PATCH 16/25] staging: erofs: add erofs_allocpage Gao Xiang
2018-07-26 12:22 ` [PATCH 17/25] staging: erofs: globalize prepare_bio and __submit_bio Gao Xiang
2018-07-26 12:22 ` [PATCH 18/25] staging: erofs: introduce a customized LZ4 decompression Gao Xiang
2018-07-26 12:22 ` [PATCH 19/25] staging: erofs: add a generic z_erofs VLE decompressor Gao Xiang
2018-07-26 12:22 ` [PATCH 20/25] staging: erofs: introduce superblock registration Gao Xiang
2018-07-26 12:22 ` [PATCH 21/25] staging: erofs: introduce erofs shrinker Gao Xiang
2018-07-26 12:22 ` [PATCH 22/25] staging: erofs: introduce workstation for decompression Gao Xiang
2018-07-26 12:22 ` [PATCH 23/25] staging: erofs: introduce VLE decompression support Gao Xiang
2018-07-26 12:22 ` [PATCH 24/25] staging: erofs: introduce cached decompression Gao Xiang
2018-07-26 12:22 ` [PATCH 25/25] staging: erofs: add a TODO and update MAINTAINERS for staging Gao Xiang
2018-07-28 7:10 ` [PATCH] staging: erofs: fix a compile warning of Z_EROFS_VLE_VMAP_ONSTACK_PAGES Gao Xiang
2018-07-28 10:43 ` Chao Yu
2018-07-29 5:34 ` [PATCH 1/2] staging: erofs: fix compile error without built-in decompression support Gao Xiang
2018-07-29 5:37 ` [PATCH 2/2] staging: erofs: fix conditional uninitialized `pcn' in z_erofs_map_blocks_iter Gao Xiang
2018-07-30 1:51 ` [PATCH] staging: erofs: use the wrapped PTR_ERR_OR_ZERO instead of open code Gao Xiang
2018-07-30 6:58 ` Chao Yu
2018-08-01 6:38 ` [PATCH 1/2] staging: erofs: add the missing break in z_erofs_map_blocks_iter Gao Xiang
2018-08-01 6:38 ` [PATCH 2/2] staging: erofs: remove a redundant marco in xattr Gao Xiang
2018-08-01 9:02 ` [PATCH 1/2] staging: erofs: add the missing break in z_erofs_map_blocks_iter Dan Carpenter
2018-08-01 9:19 ` Gao Xiang
2018-08-01 9:36 ` [PATCH RESEND " Gao Xiang
2018-08-01 11:36 ` Dan Carpenter
2018-08-01 12:08 ` Gao Xiang
2018-07-30 2:07 ` [PATCH 2/2] staging: erofs: fix conditional uninitialized `pcn' " Chao Yu
2018-07-30 2:07 ` [PATCH 1/2] staging: erofs: fix compile error without built-in decompression support Chao Yu
2018-07-30 2:32 ` Gao Xiang
2018-07-30 3:07 ` Chao Yu
2018-07-30 3:55 ` Gao Xiang
2018-07-27 0:25 ` [PATCH 00/25] staging: erofs: introduce erofs file system Christian Kujau
2018-07-27 1:39 ` Gao Xiang
2018-07-27 1:56 ` Gao Xiang
2018-07-28 7:25 ` Greg Kroah-Hartman
2018-07-28 9:33 ` Gao Xiang
2018-07-28 10:34 ` Chao Yu
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