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    SubjectRe: Linux V2.1.128 localhost performance
    On Thu, 19 Nov 1998, Tigran Aivazian wrote:

    > On Wed, 18 Nov 1998, Richard B. Johnson wrote:
    > ...
    > > One can't `ping -f localhost` anymore either. Is this a bug or a
    > > feature? If a feature, was X considered?
    > ...
    > Richard,
    > I thought X uses PF_UNIX (UNIX domain) sockets rather than TCP to localhost
    > (unless one is insisting by doing DISPLAY=localhost:0.0), so although
    > performance degradation is always bad, X is not under any threat.

    Yes you are correct.

    > I also noticed 98% packet loss when doing ping -f localhost on 2.1.127.
    > Regards,
    > Tigran.
    I noticed this in testing my new dual Pentium 400MHz machine. I have
    some network benchmark tools. To see the throughput without using
    the adapter and wire, i,e., see how the code itself works, I have
    been benchmarking localhost. I think the new "feature" makes Network
    Software performance un-testable.

    Dick Johnson
    Penguin : Linux version 2.1.128 on an i686 machine (400.59 BogoMips).
    Warning : It's hard to remain at the trailing edge of technology.

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