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    SubjectRe: [ANNOUNCE] Dolphin PCI-SCI RPM Drivers 1.1-4 released
    On Tue, Jan 30, 2001 at 10:07:07AM -0700, Todd wrote:
    > 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 was at 2% utilization running the PCI-SCI tests on a D320 PSB64 adapter.
    I doubt you would get good numbers on the box I used with G-Enet -- this
    box is limited to 70 MB/S PCI throughput.

    > > 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.

    Because I used an el-cheapo AMD box. I provided the info more for a
    2.2.X/2.4.X comparison than anything.


    > todd
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