From: Jaegeuk Kim <jaegeuk.kim@gmail.com>
To: Vyacheslav Dubeyko <slava@dubeyko.com>
Cc: jaegeuk.kim@samsung.com, Al Viro <viro@zeniv.linux.org.uk>,
tytso@mit.edu, gregkh@linuxfoundation.org,
linux-kernel@vger.kernel.org, chur.lee@samsung.com,
cm224.lee@samsung.com, jooyoung.hwang@samsung.com,
linux-fsdevel@vger.kernel.org
Subject: Re: [PATCH 00/16] f2fs: introduce flash-friendly file system
Date: Sun, 07 Oct 2012 05:06:06 +0900 [thread overview]
Message-ID: <1349553966.12699.132.camel@kjgkr> (raw)
In-Reply-To: <9DE65D03-D4EA-4B32-9C1D-1516EAE50E23@dubeyko.com>
2012-10-06 (토), 17:54 +0400, Vyacheslav Dubeyko:
> Hi Jaegeuk,
Hi.
We know each other, right? :)
>
> > From: 김재극 <jaegeuk.kim@samsung.com>
> > To: viro@zeniv.linux.org.uk, 'Theodore Ts'o' <tytso@mit.edu>, gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, chur.lee@samsung.com, cm224.lee@samsung.com, jaegeuk.kim@samsung.com, jooyoung.hwang@samsung.com
> > Subject: [PATCH 00/16] f2fs: introduce flash-friendly file system
> > Date: Fri, 05 Oct 2012 20:55:07 +0900
> >
> > This is a new patch set for the f2fs file system.
> >
> > What is F2FS?
> > =============
> >
> > NAND flash memory-based storage devices, such as SSD, eMMC, and SD cards, have
> > been widely being used for ranging from mobile to server systems. Since they are
> > known to have different characteristics from the conventional rotational disks,
> > a file system, an upper layer to the storage device, should adapt to the changes
> > from the sketch.
> >
> > F2FS is a new file system carefully designed for the NAND flash memory-based storage
> > devices. We chose a log structure file system approach, but we tried to adapt it
> > to the new form of storage. Also we remedy some known issues of the very old log
> > structured file system, such as snowball effect of wandering tree and high cleaning
> > overhead.
> >
> > Because a NAND-based storage device shows different characteristics according to
> > its internal geometry or flash memory management scheme aka FTL, we add various
> > parameters not only for configuring on-disk layout, but also for selecting allocation
> > and cleaning algorithms.
> >
>
> What about F2FS performance? Could you share benchmarking results of the new file system?
>
> It is very interesting the case of aged file system. How is GC's implementation efficient? Could you share benchmarking results for the very aged file system state?
>
Although I have benchmark results, currently I'd like to see the results
measured by community as a black-box. As you know, the results are very
dependent on the workloads and parameters, so I think it would be better
to see other results for a while.
Thanks,
> With the best regards,
> Vyacheslav Dubeyko.
>
> > Patch set
> > =========
> >
> > The patch #1 adds a document to Documentation/filesystems/.
> > The patch #2 adds a header file of on-disk layout to include/linux/.
> > The patches #3-#15 adds f2fs source files to fs/f2fs/.
> > The Last patch, patch #16, updates Makefile and Kconfig.
> >
> > mkfs.f2fs
> > =========
> >
> > The file system formatting tool, "mkfs.f2fs", is available from the following
> > download page:
> > http://sourceforge.net/projects/f2fs-tools/
> >
> >
> > Usage
> > =====
> >
> > If you'd like to experience f2fs, simply:
> > # mkfs.f2fs /dev/sdb1
> > # mount -t f2fs /dev/sdb1 /mnt/f2fs
> >
> > Short log
> > =========
> >
> > Jaegeuk Kim (16):
> > f2fs: add document
> > f2fs: add on-disk layout
> > f2fs: add superblock and major in-memory structure
> > f2fs: add super block operations
> > f2fs: add checkpoint operations
> > f2fs: add node operations
> > f2fs: add segment operations
> > f2fs: add file operations
> > f2fs: add address space operations for data
> > f2fs: add core inode operations
> > f2fs: add inode operations for special inodes
> > f2fs: add core directory operations
> > f2fs: add xattr and acl functionalities
> > f2fs: add garbage collection functions
> > f2fs: add recovery routines for roll-forward
> > f2fs: update Kconfig and Makefile
> >
> > Documentation/filesystems/00-INDEX | 2 +
> > Documentation/filesystems/f2fs.txt | 314 +++++++
> > fs/Kconfig | 1 +
> > fs/Makefile | 1 +
> > fs/f2fs/Kconfig | 55 ++
> > fs/f2fs/Makefile | 6 +
> > fs/f2fs/acl.c | 402 ++++++++
> > fs/f2fs/acl.h | 57 ++
> > fs/f2fs/checkpoint.c | 791 ++++++++++++++++
> > fs/f2fs/data.c | 700 ++++++++++++++
> > fs/f2fs/dir.c | 657 +++++++++++++
> > fs/f2fs/f2fs.h | 981 ++++++++++++++++++++
> > fs/f2fs/file.c | 643 +++++++++++++
> > fs/f2fs/gc.c | 1140 +++++++++++++++++++++++
> > fs/f2fs/gc.h | 203 +++++
> > fs/f2fs/hash.c | 98 ++
> > fs/f2fs/inode.c | 258 ++++++
> > fs/f2fs/namei.c | 549 +++++++++++
> > fs/f2fs/node.c | 1773 ++++++++++++++++++++++++++++++++++++
> > fs/f2fs/node.h | 331 +++++++
> > fs/f2fs/recovery.c | 372 ++++++++
> > fs/f2fs/segment.c | 1755 +++++++++++++++++++++++++++++++++++
> > fs/f2fs/segment.h | 627 +++++++++++++
> > fs/f2fs/super.c | 550 +++++++++++
> > fs/f2fs/xattr.c | 387 ++++++++
> > fs/f2fs/xattr.h | 142 +++
> > include/linux/f2fs_fs.h | 359 ++++++++
> > 27 files changed, 13154 insertions(+)
> > create mode 100644 Documentation/filesystems/f2fs.txt
> > create mode 100644 fs/f2fs/Kconfig
> > create mode 100644 fs/f2fs/Makefile
> > create mode 100644 fs/f2fs/acl.c
> > create mode 100644 fs/f2fs/acl.h
> > create mode 100644 fs/f2fs/checkpoint.c
> > create mode 100644 fs/f2fs/data.c
> > create mode 100644 fs/f2fs/dir.c
> > create mode 100644 fs/f2fs/f2fs.h
> > create mode 100644 fs/f2fs/file.c
> > create mode 100644 fs/f2fs/gc.c
> > create mode 100644 fs/f2fs/gc.h
> > create mode 100644 fs/f2fs/hash.c
> > create mode 100644 fs/f2fs/inode.c
> > create mode 100644 fs/f2fs/namei.c
> > create mode 100644 fs/f2fs/node.c
> > create mode 100644 fs/f2fs/node.h
> > create mode 100644 fs/f2fs/recovery.c
> > create mode 100644 fs/f2fs/segment.c
> > create mode 100644 fs/f2fs/segment.h
> > create mode 100644 fs/f2fs/super.c
> > create mode 100644 fs/f2fs/xattr.c
> > create mode 100644 fs/f2fs/xattr.h
> > create mode 100644 include/linux/f2fs_fs.h
> >
> > --
> > 1.7.9.5
> >
> >
> >
> >
> > ---
> > Jaegeuk Kim
> > Samsung
> >
> >
> >
> > --
> > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> > the body of a message to majordomo@vger.kernel.org
> > More majordomo info at
> > http://vger.kernel.org/majordomo-info.html
> >
> > Please read the FAQ at http://www.tux.org/lkml/
> >
>
> --
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
> Please read the FAQ at http://www.tux.org/lkml/
--
Jaegeuk Kim
Samsung
next prev parent reply other threads:[~2012-10-06 20:06 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <415E76CC-A53D-4643-88AB-3D7D7DC56F98@dubeyko.com>
2012-10-06 13:54 ` [PATCH 00/16] f2fs: introduce flash-friendly file system Vyacheslav Dubeyko
2012-10-06 20:06 ` Jaegeuk Kim [this message]
2012-10-07 7:09 ` Marco Stornelli
2012-10-07 9:31 ` Jaegeuk Kim
2012-10-07 12:08 ` Vyacheslav Dubeyko
2012-10-08 8:25 ` Jaegeuk Kim
2012-10-08 9:59 ` Namjae Jeon
2012-10-08 10:52 ` Jaegeuk Kim
2012-10-08 11:21 ` Namjae Jeon
2012-10-08 12:11 ` Jaegeuk Kim
2012-10-09 3:52 ` Namjae Jeon
2012-10-09 8:00 ` Jaegeuk Kim
2012-10-09 8:31 ` Lukáš Czerner
2012-10-09 10:45 ` Jaegeuk Kim
2012-10-09 11:01 ` Lukáš Czerner
2012-10-09 12:01 ` Jaegeuk Kim
2012-10-09 12:39 ` Lukáš Czerner
2012-10-09 13:10 ` Jaegeuk Kim
2012-10-09 21:20 ` Dave Chinner
2012-10-10 2:32 ` Jaegeuk Kim
2012-10-10 4:53 ` Theodore Ts'o
2012-10-12 20:55 ` Arnd Bergmann
2012-10-10 10:36 ` David Woodhouse
2012-10-12 20:58 ` Arnd Bergmann
2012-10-13 4:26 ` Namjae Jeon
2012-10-13 12:37 ` Jaegeuk Kim
2012-10-17 11:12 ` Namjae Jeon
[not found] ` <000001cdacef$b2f6eaa0$18e4bfe0$%kim@samsung.com>
2012-10-18 13:39 ` Vyacheslav Dubeyko
2012-10-18 22:14 ` Jaegeuk Kim
2012-10-19 9:20 ` NeilBrown
2012-10-08 19:22 ` Vyacheslav Dubeyko
2012-10-09 7:08 ` Jaegeuk Kim
2012-10-09 19:53 ` Jooyoung Hwang
2012-10-10 8:05 ` Vyacheslav Dubeyko
2012-10-10 9:02 ` Theodore Ts'o
2012-10-10 11:52 ` SQLite on flash (was: [PATCH 00/16] f2fs: introduce flash-friendly file system) Clemens Ladisch
2012-10-10 7:57 ` [PATCH 00/16] f2fs: introduce flash-friendly file system Vyacheslav Dubeyko
2012-10-10 9:43 ` Jaegeuk Kim
2012-10-11 3:14 ` Namjae Jeon
[not found] ` <CAN863PuyMkSZtZCvqX+kwei9v=rnbBYVYr3TqBXF_6uxwJe2_Q@mail.gmail.com>
2012-10-17 11:13 ` Namjae Jeon
2012-10-17 23:06 ` Changman Lee
2012-10-12 12:30 ` Vyacheslav Dubeyko
2012-10-12 14:25 ` Jaegeuk Kim
2012-10-07 10:15 ` Vyacheslav Dubeyko
2012-10-05 11:55 김재극
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1349553966.12699.132.camel@kjgkr \
--to=jaegeuk.kim@gmail.com \
--cc=chur.lee@samsung.com \
--cc=cm224.lee@samsung.com \
--cc=gregkh@linuxfoundation.org \
--cc=jaegeuk.kim@samsung.com \
--cc=jooyoung.hwang@samsung.com \
--cc=linux-fsdevel@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=slava@dubeyko.com \
--cc=tytso@mit.edu \
--cc=viro@zeniv.linux.org.uk \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).