[Gluster-devel] [Qusetions] How profile affect glusterfs performance?

[Xie Changlong]

在 6/7/2017 3:08 PM, Pranith Kumar Karampuri 写道:
> On Tue, Jun 6, 2017 at 8:14 AM, Xie Changlong <xiechanglong.d at gmail.com>
> wrote:
> 
>> 在 6/5/2017 6:30 PM, Pranith Kumar Karampuri 写道:
>>
>>> I meant what are you using gluster for? VM workload or image/video file
>>> creation or lots of small files etc etc.
>>>
>>
>> 1) We use glusterfs for general purpose, no limit to image/video file
>> creation or small files etc.
>>
> Okay, this is good. What is the cluster size?
> Is it replica 3 or replica 2 or arbiter or is it EC volume?

I use replica 2 on my test.
But in the real world, "we have deployed more than 100 glusterfs nodes 
in producion(20 nodes for the biggest single cluster)" per Liu Yuan. 
Replica 2/3, or EC are optional.

> 
> Please don't mind me asking so many details. I am delighted to see you guys

You are always welcome!

> active in the community because I have seen Xiubo Li's work on tcmu-runner
> who is also from chinamobile and his work is pretty good :-).

Yeah, i would be very pleasant to convey your praise. :)

> 
> 
>> 2) We just want a low performance affect way to calculate each brick's
>> iops/bandwidth for the upper layer management app. BTW, is there any other
>> way to get iops/bandwith for each brick besides profile?
>>
> 
> At the moment we have these stats using profile commands. As per Facebook
> patches they enable json capture of io-stats on their volumes and measure
> these. They have it enabled always. If that is not enough for you, then we

I think you mean FB guys gather data based on io-stats with profile 
always on, am i right?
BTW, are these patches open to everyone? so i can dig into it.

> should probably look at enhancing things. Do send patches if you think
> something would make things better :-).
> 
> 
>>
>> --
>> Thanks
>>      -Xie
>>
> 
> 
> 

-- 
Thanks
     -Xie