Namjae Jeon writes:
> From: Namjae Jeon
>
> This patch is based on suggestion by Wu Fengguang:
> https://lkml.org/lkml/2011/8/19/19
>
> kernel has mechanism to do writeback as per dirty_ratio and dirty_background
> ratio. It also maintains per task dirty rate limit to keep balance of
> dirty pag
> I will update simple table for this result in changelog in patch.
That would be good, thanks a lot for the testing!
Thanks,
Fengguang
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2012/9/12, Namjae Jeon :
> 2012/9/12, Fengguang Wu :
>> On Wed, Sep 12, 2012 at 08:12:40AM +0900, Namjae Jeon wrote:
>>> >>
>>> >> To be frank, no realistic NFS servers will use USB disk as backing
>>> >> storage. So that rational for reducing "initial" delays is weak.
>>> >> Continuous write perfo
2012/9/12, Fengguang Wu :
> On Wed, Sep 12, 2012 at 08:12:40AM +0900, Namjae Jeon wrote:
>> >>
>> >> To be frank, no realistic NFS servers will use USB disk as backing
>> >> storage. So that rational for reducing "initial" delays is weak.
>> >> Continuous write performance to HDD is much more impor
On Wed, Sep 12, 2012 at 08:12:40AM +0900, Namjae Jeon wrote:
> >>
> >> To be frank, no realistic NFS servers will use USB disk as backing
> >> storage. So that rational for reducing "initial" delays is weak.
> >> Continuous write performance to HDD is much more important. Do you
> >> have numbers f
>>
>> To be frank, no realistic NFS servers will use USB disk as backing
>> storage. So that rational for reducing "initial" delays is weak.
>> Continuous write performance to HDD is much more important. Do you
>> have numbers for that?
>
> Actually, we use USB HDD and USB Flash devices at NFS serv
2012/9/11, Fengguang Wu :
> Hi Namjae,
Hi. Wu.
>
> On Mon, Aug 27, 2012 at 12:01:14PM -0400, Namjae Jeon wrote:
>> From: Namjae Jeon
>>
>> This patch is based on suggestion by Wu Fengguang:
>> https://lkml.org/lkml/2011/8/19/19
>>
>> kernel has mechanism to do writeback as per dirty_ratio and
>> d
Hi Namjae,
On Mon, Aug 27, 2012 at 12:01:14PM -0400, Namjae Jeon wrote:
> From: Namjae Jeon
>
> This patch is based on suggestion by Wu Fengguang:
> https://lkml.org/lkml/2011/8/19/19
>
> kernel has mechanism to do writeback as per dirty_ratio and dirty_background
> ratio. It also maintains per
From: Namjae Jeon
This patch is based on suggestion by Wu Fengguang:
https://lkml.org/lkml/2011/8/19/19
kernel has mechanism to do writeback as per dirty_ratio and dirty_background
ratio. It also maintains per task dirty rate limit to keep balance of
dirty pages at any given instance by doing bd
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