On 2021/11/10 10:34, 常凤楠 wrote:
-Original Message-
From: changfeng...@vivo.com On Behalf Of
Chao Yu
Sent: Tuesday, November 9, 2021 10:11 PM
To: 常凤楠 ; jaeg...@kernel.org
Cc: linux-f2fs-devel@lists.sourceforge.net
Subject: Re: [PATCH v2] f2fs: compress: reduce one page array alloc and
Don't alloc new page pointers array to replace old, just use old, introduce
valid_nr_cpages to indicate valid number of page pointers in array, try to
reduce one page array alloc and free when write compress page.
Signed-off-by: Fengnan Chang
---
fs/f2fs/compress.c | 32 ++---
> -Original Message-
> From: changfeng...@vivo.com On Behalf Of
> Chao Yu
> Sent: Tuesday, November 9, 2021 10:11 PM
> To: 常凤楠 ; jaeg...@kernel.org
> Cc: linux-f2fs-devel@lists.sourceforge.net
> Subject: Re: [PATCH v2] f2fs: compress: reduce one page array alloc and
> free when write com
> -Original Message-
> From: changfeng...@vivo.com On Behalf Of
> Chao Yu
> Sent: Tuesday, November 9, 2021 9:41 PM
> To: 常凤楠 ; jaeg...@kernel.org
> Cc: linux-f2fs-devel@lists.sourceforge.net
> Subject: Re: Do we need serial io for compress file?
>
> On 2021/11/9 9:59, 常凤楠 wrote:
> >
>
> -Original Message-
> From: changfeng...@vivo.com On Behalf Of
> Chao Yu
> Sent: Tuesday, November 9, 2021 9:46 PM
> To: 常凤楠 ; jaeg...@kernel.org
> Cc: linux-f2fs-devel@lists.sourceforge.net
> Subject: Re: Do we need serial io for compress file?
>
> On 2021/11/9 11:18, 常凤楠 wrote:
> >
> >
On 11/9/21 9:39 AM, Christoph Hellwig wrote:
> On Mon, Nov 08, 2021 at 06:13:36PM -0800, Jaegeuk Kim wrote:
>> This patch adds a way to attach HIPRI by expanding the existing sysfs's
>> data_io_flag. User can measure IO performance by enabling it.
>
> NAK. This flag should only be used when expli
On Mon, Nov 08, 2021 at 06:13:36PM -0800, Jaegeuk Kim wrote:
> This patch adds a way to attach HIPRI by expanding the existing sysfs's
> data_io_flag. User can measure IO performance by enabling it.
NAK. This flag should only be used when explicitly specified by
the submitter of the I/O.
>
> Si
On 2021/11/9 10:13, Jaegeuk Kim wrote:
This patch adds a way to attach HIPRI by expanding the existing sysfs's
data_io_flag. User can measure IO performance by enabling it.
Signed-off-by: Jaegeuk Kim
Reviewed-by: Chao Yu
Thanks,
___
Linux-f2fs-d
On 2021/11/9 11:54, Fengnan Chang wrote:
Don't alloc new page pointers array to replace old, just use old, introduce
valid_nr_cpages to indicate valid number of page pointers in array, try to
reduce one page array alloc and free when write compress page.
Signed-off-by: Fengnan Chang
---
fs/f2
On 2021/11/9 11:18, 常凤楠 wrote:
-Original Message-
From: changfeng...@vivo.com On Behalf Of
Chao Yu
Sent: Monday, November 8, 2021 10:30 PM
To: 常凤楠 ; jaeg...@kernel.org
Cc: linux-f2fs-devel@lists.sourceforge.net
Subject: Re: Do we need serial io for compress file?
On 2021/11/8 16:56,
On 2021/11/9 9:59, 常凤楠 wrote:
-Original Message-
From: changfeng...@vivo.com On Behalf Of
Chao Yu
Sent: Monday, November 8, 2021 10:21 PM
To: 常凤楠 ; jaeg...@kernel.org
Cc: linux-f2fs-devel@lists.sourceforge.net
Subject: Re: Do we need serial io for compress file?
On 2021/11/8 11:54, F
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