NFS latency and throughput minimum requirement

NFS latency and throughput minimum requirement

[Naruto Nguyen]

Hi everyone,

Could you please advice me how to identify the minimum NFS requirement
of latency and throughput on a specific system? I have some test cases
to test performance of NFS and tune the system to have better NFS
performance but I do not know how good or bad with my
measurement/result.

Thanks,
Brs,
Naruto

Re: NFS latency and throughput minimum requirement

[Mkrtchyan, Tigran]

Hi Naruto,

NFS performance is a function with multiple variables:

  - CPU
  - kernel
  - TCP
  - Networks
  - Disk subsystem
  - File system

and every component has it's own set of knobs to turn...

I will inter the question: What is expected latency and throughput
of your applications? Can you identify the bottlenecks? At the best
try to reproduce the load with application itself or fio and then
go one-by-one and tweak the performance.

Regards,
   Tigran.
 
----- Original Message -----
> From: "Naruto Nguyen" <narutonguyen2018@gmail.com>
> To: "linux-nfs" <linux-nfs@vger.kernel.org>
> Sent: Monday, October 28, 2019 6:25:24 AM
> Subject: NFS latency and throughput minimum requirement

> Hi everyone,
> 
> Could you please advice me how to identify the minimum NFS requirement
> of latency and throughput on a specific system? I have some test cases
> to test performance of NFS and tune the system to have better NFS
> performance but I do not know how good or bad with my
> measurement/result.
> 
> Thanks,
> Brs,
> Naruto

Re: NFS latency and throughput minimum requirement

[Naruto Nguyen]

Hi Tigran,

Thanks a lot for your advice. I will try to find out the bottlenecks first.

Brs,
Naruto

On Mon, 28 Oct 2019 at 21:44, Mkrtchyan, Tigran
<tigran.mkrtchyan@desy.de> wrote:
>
> Hi Naruto,
>
> NFS performance is a function with multiple variables:
>
>   - CPU
>   - kernel
>   - TCP
>   - Networks
>   - Disk subsystem
>   - File system
>
> and every component has it's own set of knobs to turn...
>
> I will inter the question: What is expected latency and throughput
> of your applications? Can you identify the bottlenecks? At the best
> try to reproduce the load with application itself or fio and then
> go one-by-one and tweak the performance.
>
> Regards,
>    Tigran.
>
> ----- Original Message -----
> > From: "Naruto Nguyen" <narutonguyen2018@gmail.com>
> > To: "linux-nfs" <linux-nfs@vger.kernel.org>
> > Sent: Monday, October 28, 2019 6:25:24 AM
> > Subject: NFS latency and throughput minimum requirement
>
> > Hi everyone,
> >
> > Could you please advice me how to identify the minimum NFS requirement
> > of latency and throughput on a specific system? I have some test cases
> > to test performance of NFS and tune the system to have better NFS
> > performance but I do not know how good or bad with my
> > measurement/result.
> >
> > Thanks,
> > Brs,
> > Naruto