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From Vladimir Melnik <v.mel...@uplink.ua>
Subject Re: Storage Performance
Date Sun, 05 Jun 2016 16:50:37 GMT
I use CentOS-6.8 as the operating system of a host.

Thanks!

On Sun, Jun 05, 2016 at 07:05:30PM +0200, Timothy Lothering wrote:
> Hi Vladimir,
> 
> What hypervisor are you using?
> 
> -----Original Message-----
> From: Vladimir Melnik [mailto:v.melnik@uplink.ua] 
> Sent: Sunday, 05 June 2016 6:06 PM
> To: users@cloudstack.apache.org
> Subject: Storage Performance
> 
> Hello,
> 
> I have an ACS-driven environment with a storage subsystem which is built on
> Gluster over InfiniBand. The storage shows pretty good performance when I
> mount a volume on a host and run a simple test ("dd if=/dev/zero
> of=/mnt/tmp/test.1G bs=1G count=1 conv=fdatasync"), it shows about 400 MB/s
> and that's okay. But when I deploy a virtual machine (I tried it with
> CentOS-6.8-x64 as a guest OS), I can't gain so good result from inside of a
> guest (it shows about 40 MB/s with the same simple test).
> 
> What do you think, have I forgotten to do something important when I was
> seting this environment up?
> 
> Thank you very much for sharing your ideas and clues!
> 
> -- 
> V.Melnik
> 

-- 
V.Melnik

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