msung.com]
> > > Sent: Tuesday, December 30, 2014 8:32 AM
> > > To: Jaegeuk Kim
> > > Cc: Chao Yu; linux-f2fs-de...@lists.sourceforge.net;
> > > linux-kernel@vger.kernel.org
> > > Subject: Re: [RFC PATCH] f2fs: add extent cache base on rb-tree
> > &g
, 2014 4:26 PM
> > > To: Chao Yu
> > > Cc: 'Changman Lee'; linux-f2fs-de...@lists.sourceforge.net;
> > > linux-kernel@vger.kernel.org
> > > Subject: Re: [RFC PATCH] f2fs: add extent cache base on rb-tree
> > >
> > > Hi Chao,
> > >
> &g
;
linux-kernel@vger.kernel.org
Subject: Re: [RFC PATCH] f2fs: add extent cache base on rb-tree
Hi Chao,
On Tue, Dec 30, 2014 at 06:10:21PM +0800, Chao Yu wrote:
Hi Jaegeuk,
-Original Message-
From: Jaegeuk Kim [mailto:jaeg...@kernel.org]
Sent: Tuesday
...@lists.sourceforge.net;
linux-kernel@vger.kernel.org
Subject: Re: [RFC PATCH] f2fs: add extent cache base on rb-tree
Hi all,
On Mon, Dec 29, 2014 at 01:23:00PM -0800, Jaegeuk Kim wrote:
Hi Chao,
On Mon, Dec 29, 2014 at 03:19:18PM +0800, Chao Yu wrote:
[snip
k Kim
> > Cc: Chao Yu; linux-f2fs-de...@lists.sourceforge.net;
> > linux-kernel@vger.kernel.org
> > Subject: Re: [RFC PATCH] f2fs: add extent cache base on rb-tree
> >
> > Hi all,
> >
> > On Mon, Dec 29, 2014 at 01:23:00PM -0800, Jaegeuk Kim wrote:
>
...@lists.sourceforge.net;
linux-kernel@vger.kernel.org
Subject: Re: [RFC PATCH] f2fs: add extent cache base on rb-tree
Hi all,
On Mon, Dec 29, 2014 at 01:23:00PM -0800, Jaegeuk Kim wrote:
Hi Chao,
On Mon, Dec 29, 2014 at 03:19:18PM +0800, Chao Yu wrote:
[snip]
Nice draft
nux-f2fs-de...@lists.sourceforge.net;
> > linux-kernel@vger.kernel.org
> > Subject: Re: [RFC PATCH] f2fs: add extent cache base on rb-tree
> >
> > Hi Chao,
> >
> > On Tue, Dec 30, 2014 at 06:10:21PM +0800, Chao Yu wrote:
> > > Hi Jaegeuk,
> > &g
@vger.kernel.org
Subject: Re: [RFC PATCH] f2fs: add extent cache base on rb-tree
Hi Chao,
On Tue, Dec 30, 2014 at 06:10:21PM +0800, Chao Yu wrote:
Hi Jaegeuk,
-Original Message-
From: Jaegeuk Kim [mailto:jaeg...@kernel.org]
Sent: Tuesday, December 30, 2014 5:23 AM
, 2014 5:23 AM
> > > To: Chao Yu
> > > Cc: 'Changman Lee'; linux-f2fs-de...@lists.sourceforge.net;
> > > linux-kernel@vger.kernel.org
> > > Subject: Re: [RFC PATCH] f2fs: add extent cache base on rb-tree
> > >
> > > Hi Chao,
>
;
linux-kernel@vger.kernel.org
Subject: Re: [RFC PATCH] f2fs: add extent cache base on rb-tree
Hi Chao,
On Mon, Dec 29, 2014 at 03:19:18PM +0800, Chao Yu wrote:
[snip]
Nice draft. :)
Thanks! :)
Please see the draft below.
1) Extent management:
If we
bject: Re: [RFC PATCH] f2fs: add extent cache base on rb-tree
>
> Hi all,
>
> On Mon, Dec 29, 2014 at 01:23:00PM -0800, Jaegeuk Kim wrote:
> > Hi Chao,
> >
> > On Mon, Dec 29, 2014 at 03:19:18PM +0800, Chao Yu wrote:
> >
> > [snip]
> >
> > Nice
Hi Changman,
Sorry for replying late!
-Original Message-
From: Changman Lee [mailto:cm224@samsung.com]
Sent: Tuesday, December 30, 2014 8:32 AM
To: Jaegeuk Kim
Cc: Chao Yu; linux-f2fs-de...@lists.sourceforge.net;
linux-kernel@vger.kernel.org
Subject: Re: [RFC PATCH] f2fs: add
nux-f2fs-de...@lists.sourceforge.net;
> > linux-kernel@vger.kernel.org
> > Subject: Re: [RFC PATCH] f2fs: add extent cache base on rb-tree
> >
> > Hi Chao,
> >
> > On Mon, Dec 29, 2014 at 03:19:18PM +0800, Chao Yu wrote:
> >
> > [snip]
> >
> &
@vger.kernel.org
Subject: Re: [RFC PATCH] f2fs: add extent cache base on rb-tree
Hi Chao,
On Mon, Dec 29, 2014 at 03:19:18PM +0800, Chao Yu wrote:
[snip]
Nice draft. :)
Thanks! :)
Please see the draft below.
1) Extent management:
If we use global management
Hi Jaegeuk,
> -Original Message-
> From: Jaegeuk Kim [mailto:jaeg...@kernel.org]
> Sent: Tuesday, December 30, 2014 5:23 AM
> To: Chao Yu
> Cc: 'Changman Lee'; linux-f2fs-de...@lists.sourceforge.net;
> linux-kernel@vger.kernel.org
> Subject: Re: [RFC PATCH] f2fs:
Hi Jaegeuk,
-Original Message-
From: Jaegeuk Kim [mailto:jaeg...@kernel.org]
Sent: Tuesday, December 30, 2014 5:23 AM
To: Chao Yu
Cc: 'Changman Lee'; linux-f2fs-de...@lists.sourceforge.net;
linux-kernel@vger.kernel.org
Subject: Re: [RFC PATCH] f2fs: add extent cache base on rb
Hi all,
On Mon, Dec 29, 2014 at 01:23:00PM -0800, Jaegeuk Kim wrote:
> Hi Chao,
>
> On Mon, Dec 29, 2014 at 03:19:18PM +0800, Chao Yu wrote:
>
> [snip]
>
> Nice draft. :)
>
> >
> > Please see the draft below.
> >
> > 1) Extent management:
> > If we use global management that managing all
Hi Chao,
On Mon, Dec 29, 2014 at 03:19:18PM +0800, Chao Yu wrote:
[snip]
Nice draft. :)
>
> Please see the draft below.
>
> 1) Extent management:
> If we use global management that managing all extents which are from different
> inodes in sbi, we will face with serious lock contention when
Hi Chao,
On Mon, Dec 29, 2014 at 03:19:18PM +0800, Chao Yu wrote:
[snip]
Nice draft. :)
Please see the draft below.
1) Extent management:
If we use global management that managing all extents which are from different
inodes in sbi, we will face with serious lock contention when we
Hi all,
On Mon, Dec 29, 2014 at 01:23:00PM -0800, Jaegeuk Kim wrote:
Hi Chao,
On Mon, Dec 29, 2014 at 03:19:18PM +0800, Chao Yu wrote:
[snip]
Nice draft. :)
Please see the draft below.
1) Extent management:
If we use global management that managing all extents which are
, 2014 3:36 PM
> > > To: Chao Yu
> > > Cc: 'Changman Lee'; linux-f2fs-de...@lists.sourceforge.net;
> > > linux-kernel@vger.kernel.org
> > > Subject: Re: [RFC PATCH] f2fs: add extent cache base on rb-tree
> > >
> > > Hi Chao,
> > >
> &g
;
linux-kernel@vger.kernel.org
Subject: Re: [RFC PATCH] f2fs: add extent cache base on rb-tree
Hi Chao,
On Tue, Dec 23, 2014 at 11:01:39AM +0800, Chao Yu wrote:
Hi Jaegeuk,
-Original Message-
From: Jaegeuk Kim [mailto:jaeg...@kernel.org]
Sent: Tuesday
nux-f2fs-de...@lists.sourceforge.net;
> > linux-kernel@vger.kernel.org
> > Subject: Re: [RFC PATCH] f2fs: add extent cache base on rb-tree
> >
> > Hi Chao,
> >
> > On Tue, Dec 23, 2014 at 11:01:39AM +0800, Chao Yu wrote:
> > > Hi Jaegeuk,
> > &g
@vger.kernel.org
Subject: Re: [RFC PATCH] f2fs: add extent cache base on rb-tree
Hi Chao,
On Tue, Dec 23, 2014 at 11:01:39AM +0800, Chao Yu wrote:
Hi Jaegeuk,
-Original Message-
From: Jaegeuk Kim [mailto:jaeg...@kernel.org]
Sent: Tuesday, December 23, 2014 7:16 AM
, 2014 7:16 AM
> > > To: Chao Yu
> > > Cc: 'Changman Lee'; linux-f2fs-de...@lists.sourceforge.net;
> > > linux-kernel@vger.kernel.org
> > > Subject: Re: [RFC PATCH] f2fs: add extent cache base on rb-tree
> > >
> > > Hi Chao,
> > >
> >
-kernel@vger.kernel.org
Subject: Re: [RFC PATCH] f2fs: add extent cache base on rb-tree
Hi Chao,
On Mon, Dec 22, 2014 at 03:10:30PM +0800, Chao Yu wrote:
Hi Changman,
-Original Message-
From: Changman Lee [mailto:cm224@samsung.com]
Sent: Monday
..@lists.sourceforge.net;
> > linux-kernel@vger.kernel.org
> > Subject: Re: [RFC PATCH] f2fs: add extent cache base on rb-tree
> >
> > Hi,
> >
> > On Mon, Dec 22, 2014 at 03:10:30PM +0800, Chao Yu wrote:
> > > Hi Changman,
> > >
> > >
22, 2014 10:03 AM
> > > To: Chao Yu
> > > Cc: Jaegeuk Kim; linux-f2fs-de...@lists.sourceforge.net;
> > > linux-kernel@vger.kernel.org
> > > Subject: Re: [RFC PATCH] f2fs: add extent cache base on rb-tree
> > >
> > > Hi Yu,
> > >
> >
t; > Sent: Tuesday, December 23, 2014 7:16 AM
> > > To: Chao Yu
> > > Cc: 'Changman Lee'; linux-f2fs-de...@lists.sourceforge.net;
> > > linux-kernel@vger.kernel.org
> > > Subject: Re: [RFC PATCH] f2fs: add extent cache base on rb-tree
> > >
> > &
: 'Changman Lee'; linux-f2fs-de...@lists.sourceforge.net;
linux-kernel@vger.kernel.org
Subject: Re: [RFC PATCH] f2fs: add extent cache base on rb-tree
Hi Chao,
On Mon, Dec 22, 2014 at 03:10:30PM +0800, Chao Yu wrote:
Hi Changman,
-Original Message-
From
;
linux-kernel@vger.kernel.org
Subject: Re: [RFC PATCH] f2fs: add extent cache base on rb-tree
Hi Yu,
Good approach.
Thank you. :)
As you know, however, f2fs breaks extent itself due to COW.
Yes, and sometimes f2fs use IPU when override writing, in this condition,
by using
@vger.kernel.org
Subject: Re: [RFC PATCH] f2fs: add extent cache base on rb-tree
Hi,
On Mon, Dec 22, 2014 at 03:10:30PM +0800, Chao Yu wrote:
Hi Changman,
-Original Message-
From: Changman Lee [mailto:cm224@samsung.com]
Sent: Monday, December 22, 2014 10:03 AM
nux-f2fs-de...@lists.sourceforge.net;
> > linux-kernel@vger.kernel.org
> > Subject: Re: [RFC PATCH] f2fs: add extent cache base on rb-tree
> >
> > Hi Chao,
> >
> > On Mon, Dec 22, 2014 at 03:10:30PM +0800, Chao Yu wrote:
> > > Hi Changman,
> > >
&
..@lists.sourceforge.net;
> > linux-kernel@vger.kernel.org
> > Subject: Re: [RFC PATCH] f2fs: add extent cache base on rb-tree
> >
> > Hi Yu,
> >
> > Good approach.
>
> Thank you. :)
>
> > As you know, however, f2fs breaks extent itself du
22, 2014 10:03 AM
> > > To: Chao Yu
> > > Cc: Jaegeuk Kim; linux-f2fs-de...@lists.sourceforge.net;
> > > linux-kernel@vger.kernel.org
> > > Subject: Re: [RFC PATCH] f2fs: add extent cache base on rb-tree
> > >
> > > Hi Yu,
> > >
> >
nux-f2fs-de...@lists.sourceforge.net;
> > linux-kernel@vger.kernel.org
> > Subject: Re: [RFC PATCH] f2fs: add extent cache base on rb-tree
> >
> > Hi Yu,
> >
> > Good approach.
>
> Thank you. :)
>
> > As you know, however, f2fs breaks extent itself du
Hi Changman,
> -Original Message-
> From: Changman Lee [mailto:cm224@samsung.com]
> Sent: Monday, December 22, 2014 10:03 AM
> To: Chao Yu
> Cc: Jaegeuk Kim; linux-f2fs-de...@lists.sourceforge.net;
> linux-kernel@vger.kernel.org
> Subject: Re: [RFC PATCH] f2fs:
;
linux-kernel@vger.kernel.org
Subject: Re: [RFC PATCH] f2fs: add extent cache base on rb-tree
Hi Yu,
Good approach.
Thank you. :)
As you know, however, f2fs breaks extent itself due to COW.
Yes, and sometimes f2fs use IPU when override writing, in this condition,
by using
@vger.kernel.org
Subject: Re: [RFC PATCH] f2fs: add extent cache base on rb-tree
Hi Yu,
Good approach.
Thank you. :)
As you know, however, f2fs breaks extent itself due to COW.
Yes, and sometimes f2fs use IPU when override writing, in this condition,
by using this approach we can
@vger.kernel.org
Subject: Re: [RFC PATCH] f2fs: add extent cache base on rb-tree
Hi Chao,
On Mon, Dec 22, 2014 at 03:10:30PM +0800, Chao Yu wrote:
Hi Changman,
-Original Message-
From: Changman Lee [mailto:cm224@samsung.com]
Sent: Monday, December 22, 2014 10:03
Hi Changman,
-Original Message-
From: Changman Lee [mailto:cm224@samsung.com]
Sent: Monday, December 22, 2014 10:03 AM
To: Chao Yu
Cc: Jaegeuk Kim; linux-f2fs-de...@lists.sourceforge.net;
linux-kernel@vger.kernel.org
Subject: Re: [RFC PATCH] f2fs: add extent cache base on rb
@vger.kernel.org
Subject: Re: [RFC PATCH] f2fs: add extent cache base on rb-tree
Hi Yu,
Good approach.
Thank you. :)
As you know, however, f2fs breaks extent itself due to COW.
Yes, and sometimes f2fs use IPU when override writing, in this condition,
by using this approach we can
Hi Changman,
> -Original Message-
> From: Changman Lee [mailto:cm224@samsung.com]
> Sent: Monday, December 22, 2014 10:03 AM
> To: Chao Yu
> Cc: Jaegeuk Kim; linux-f2fs-de...@lists.sourceforge.net;
> linux-kernel@vger.kernel.org
> Subject: Re: [RFC PATCH] f2fs:
Hi Yu,
Good approach.
As you know, however, f2fs breaks extent itself due to COW.
Unlike other filesystem like btrfs, minimum extent of f2fs could have 4KB
granularity.
So we would have lots of extents per inode and it could lead to overhead
to manage extents.
Anyway, mount option could be
Hi Yu,
Good approach.
As you know, however, f2fs breaks extent itself due to COW.
Unlike other filesystem like btrfs, minimum extent of f2fs could have 4KB
granularity.
So we would have lots of extents per inode and it could lead to overhead
to manage extents.
Anyway, mount option could be
Hi Changman,
-Original Message-
From: Changman Lee [mailto:cm224@samsung.com]
Sent: Monday, December 22, 2014 10:03 AM
To: Chao Yu
Cc: Jaegeuk Kim; linux-f2fs-de...@lists.sourceforge.net;
linux-kernel@vger.kernel.org
Subject: Re: [RFC PATCH] f2fs: add extent cache base on rb
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