[kernel-xen] Centos7 Dom0 IO performance

[Christoph Kaminski]

I will look at it but I have already a solution.
It seems that the kernel of centos6 is to old or have an nfs/io issue... 
If I use a recent kernel in the nfs centos6 domU it is much faster (not 
perfect). If I use nfs inside a centos7 domU I dont have the issue 
anymore.

(It was a io (100%) problem of domU with nfs server)

Am 2015-09-02 03:13, schrieb Glenn Enright:
> You may want to look at tweaking which scheduler you are using. Also
> look at the the blkfront drive options eg the command line passed to
> each domU, like extra="elevator=noop xen-blkfront.max=64"
> 
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Greetz
Christoph