Subject: Re: ppc405ex + gigabit ethernet
Hi Sylvain,
the interrupt coalescing sounds like good idea - I'm surprised this
feature is missing in the original ibm_newemac driver. You wrote you
had got this optimisation directly from AMCC. Is it part of any
framework? I'm just wondering how one can
Hi Sylvain,
the interrupt coalescing sounds like good idea - I'm surprised this
feature is missing in the original ibm_newemac driver. You wrote you
had got this optimisation directly from AMCC. Is it part of any
framework? I'm just wondering how one can obtain it. I tried to find
any suitable
Many thanks for all responses! Now I know all I need to know :)
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to say how can you further improve.
BR
Ming
Date: Wed, 1 Jul 2009 13:24:41 +0200
Subject: Re: ppc405ex + gigabit ethernet
From: lada.podi...@gmail.com
To: eeming...@hotmail.com
CC: linuxppc-...@ozlabs.org
Thank you for your reply!
Yes, I agree the CPU is the bottleneck. But I have
Hi,
According to our experience on PPC405 + Gigabit Enet, your result is already
very reasonable. For UDP transmission, it can be around 400 Kb/s because of the
CPU bottleneck (in our case 300 MHz ppc405). If you want to further improve it,
a faster CPU is needed to process the TCP/IP stack,
Thank you for your reply!
Yes, I agree the CPU is the bottleneck. But I have performed more tests with
the netperf tool and results seem strange to me. If I send 800 B of data,
the resulting speed is aproximately 100 Kb/s. On the other hand, If I try to
send 32KB chunk of data with jumbo frames
Hi Lada,
Hi,
I benchmarked performance of my network, which contains ppc405EX (Kilauea
board, kernel 2.6.30 from Denx) connected with a linux desktop via gigabit
ethernet. I used the netperf tool:
netperf -t UDP_STREAM -H 192.168.1.1 -- -m 32768
So I was sending UDP packets to the
Eh! I mean Mb/s NOT Kb/s! Sorry!
2009/7/1 Lada Podivin lada.podi...@gmail.com
Thank you for your reply!
Yes, I agree the CPU is the bottleneck. But I have performed more tests
with the netperf tool and results seem strange to me. If I send 800 B of
data, the resulting speed is aproximately
@lists.ozlabs.org
[mailto:linuxppc-dev-bounces+john.p.price=l-3com@lists.ozlabs.org] On
Behalf Of Lada Podivin
Sent: Wednesday, July 01, 2009 7:25 AM
To: LiuMing
Cc: linuxppc-...@ozlabs.org
Subject: Re: ppc405ex + gigabit ethernet
Thank you for your reply!
Yes, I agree the CPU is the bottleneck
Hi,
I benchmarked performance of my network, which contains ppc405EX (Kilauea
board, kernel 2.6.30 from Denx) connected with a linux desktop via gigabit
ethernet. I used the netperf tool:
netperf -t UDP_STREAM -H 192.168.1.1 -- -m 32768
So I was sending UDP packets to the desktop.
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