[CentOS] OT: looking for network performance comparison chart
cap at nsc.liu.se
Fri Oct 22 16:18:42 UTC 2010
On Friday 22 October 2010, Rudi Ahlers wrote:
> Hi all,
> Does anyone have, or know of a comparison chart of the different
> network adapters, i.e. 1GB / 10GB, Infiniband, etc. And if possible
> with a few top brand NIC's and switches listed as well.
Good 1G eth: 945 Mbps
Good 10G eth(w/o tcp tuning): 6-7 Gbps
Same 10G with some tcp tuning): 9.4 Gbps
Infiniband(MPI or raw verbs):
SDR: 980 MB/s
DDR: 1900 MB/s
QDR: 3700 MB/s
I don't have numbers for IPoIB (tcp on Infiniband) since we dont use that
> I would like to see, for example, what the max throughput is of a 1GB
> NIC (and this could probably differ from PCI to PCIE-x1 to PCIE-x4),
> and 10GBE. Different switches would probably also have different
Most or all switches I've used the last few year can take wirespeed 1G eth on
atleast a few ports concurrently. For 10G eth I don't know much more than
that our procurve, cisco and bladenetworks equipment can do wire speed
(atleast on a few ports concurrently).
Infiniband swtiches are typically very good at delivering bandwidth (as long
as you avoid congestion).
> but could a layer 2 switch & layer3 switch deliver the same
> performance for example?
As previously stated by another poster, layer3 is only features, says nothing
about performance (although features tend to cost you..).
> Basically I need to know what upload / download speeds I should be
> getting from the different networks, set aside other options like CPU
> / RAM / disc IO / etc.
All of my figures above assumes "good hardware". If you want to push 10G or
more you'll need PCI-express gen2 and a modern CPU/memory.
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