On Mon, Aug 17, 2015 at 01:35:06PM +0300, Daniel Braniss wrote:
>
> > On Aug 17, 2015, at 12:41 PM, Slawa Olhovchenkov <slw at
zxy.spb.ru> wrote:
> >
> > On Mon, Aug 17, 2015 at 10:27:41AM +0300, Daniel Braniss wrote:
> >
> >> hi,
> >> I have a host (Dell R730) with both cards, connected to an HP8200
switch at 10Gb.
> >> when writing to the same storage (netapp) this is what I get:
> >> ix0: ~130MGB/s
> >> mlxen0 ~330MGB/s
> >> this is via nfs/tcpv3
> >>
> >> I can get similar (bad) performance with the mellanox if I
increase the file size
> >> to 512MGB.
> >
> > Look like mellanox have internal beffer for caching and do ACK
acclerating.
> what ever they are doing, it's impressive :-)
>
> >
> >> so at face value, it seems the mlxen does a better use of
resources than the intel.
> >> Any ideas how to improve ix/intel's performance?
> >
> > Are you sure about netapp performance?
>
> yes, and why should it act differently if the request is coming from the
same host? in any case
> the numbers are quiet consistent since I have measured it from several
hosts, and at different times.
In any case, for 10Gb expect about 1200MGB/s.
I see lesser speed.
What netapp maximum performance? From other hosts, or local, any?