Re: [dm-devel] [RFC PATCH 0/4] dm-mpath: dynamic load balancers

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Hi Mike,

Thank you for the comment.

On 01/30/2009 03:12 AM +0900, Mike Christie wrote:
> Kiyoshi Ueda wrote:
>> Hi Alasdair,
>>
>> On 01/29/2009 12:37 AM +0900, Alasdair G Kergon wrote:
>>> On Fri, Sep 12, 2008 at 10:50:38AM -0400, Kiyoshi Ueda wrote:
>>>> The following patches add the following 2 dynamic load balancers
>>>> to request-based dm-multipath:
>>>>   o queue-length oriented dynamic load balancer, dm-queue-length.
>>>>   o service-time oriented dynamic load balancer, dm-service-time.
>>>  
>>> Could we have separate Kconfig options to select them?
>>
>> Sure.
>> I posted the new one rebased on top of 2.6.29-rc2:
>>   https://www.redhat.com/archives/dm-devel/2009-January/msg00183.html
>>   https://www.redhat.com/archives/dm-devel/2009-January/msg00186.html
>>
> 
> For the Kconfig help, is there something we could add to help people
> know when to choose one or the other? Sort of like how the block layer
> io scheduler (block/Kconfig.iosched) says one might be helpful for
> desktops and one is useful for data bses?

That's a good idea, but I don't have much information about that now.
To make such guide-line, we probably need lots of feedbacks from users.
(e.g. That may also depend on HW, not only work-load.)
So that is TODO in the future, I think.

Thanks,
Kiyoshi Ueda
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