Re: [ANNOUNCE] Dolphin PCI-SCI RPM Drivers 1.1-4 released

Todd (todd@unm.edu)
Tue, 30 Jan 2001 10:07:07 -0700 (MST)


folx,

On Tue, 30 Jan 2001, Jeff V. Merkey wrote:
> What numbers does G-Enet provide
> doing userspace -> userspace transfers, and at what processor
> overhead?

using stock 2.4 kernel and alteon acenic cards with stock firmware we're
seeing 993 MBps userspace->userspace (running netperf UDP_STREAM tests,
which run as userspace client and server) with 88% CPU utilization.

Using a modified version of the firmware that we wrote we're getting
993Mbps with 55% CPU utilization.

> I posted the **ACCURATE** numbers from my test, but I did clarify that I
> was using a system with a limp PCI bus.
>
> Jeff

i appreciate that. i'm just trying to figure out why the numbers are so
low compared to the network speed you mentioned.

todd

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