during testing, for client: the cpu is pentium II 266 MHz with redhat9
& for server: the cpu is pentium 4 2GHz with redhat 7.3. I can change both
client & server to pentium 4 cpu while the type of OS is not important
to me, as long as the combination can generate max data rate
possible.
Paul Hyder <Paul.Hyder --at-- noaa.gov> wrote:
Would
need to know which operating system and the CPU speed of the "...two PCs."
to
help much.
It is indeed not difficult to get single flows to over
90% of a GigE but you probably
need to tune buffers a bit. (e.g. On a dual
2.0GHz Opteron hardware with Linux.) If
you run Linux I can provide details
of what to modify. For Windows and others see the
PSC url below.
Paul
Hyder
NOAA Forecast Systems Lab
Synopsis:
General TCP tuning:
http://www.psc.edu/networking/projects/tcptune/
Internet2 iperf/bwctl TCP
Throughput:
http://abilene.internet2.edu/ami/bwctl_status.cgi/TCP/now
Jason
wrote:
> I can only manage to achieve 229Mbps on 1Gbps link using a
gigabit hub in between two PCs. Any idea to increase the volume of
traffic?
>
> "Cottrell, Les"
wrote:You can get around 960Mbps with iperf on a !
back to back 1Gbps link between two PCs. On a 10Gbps link one can get about
7.5Gbps, the limitation is the PCI-X bus.
>
>
>
---------------------------------
> From:
owner-iperf-users --at-- dast.nlanr.net [mailto:owner-iperf-users --at-- dast.nlanr.net] On
Behalf Of Jason
> Sent: Tuesday, May 24, 2005 12:09 AM
> To: Iperf
Users
> Subject: maximum data rates
>
>
>
>
Dear all,
>
> I try iperf on 100 Mbps link & it is able to
generate tcp traffic up to 97 Mbps. Any one try on Gigabit link & what is
the maximum data traffic it can generate? Also, any one using web100 with
iperf, because I think Iperf alone can generate near 100 Mbps & I am not
too sure what web100 uses are.
>
> Thanks
>
>
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