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AMD64 very slow! - FreeBSD

I have opteron 246 system with 2 port intel em card. We have test bed with about 200Kbs traffic and we route through 5.3/i386 system. Load is about 50%. With same settings, amd64 system run with 85% load. How could be so slow? What tuning extra is needed for amd64 kernels? Boris __________________________________ Do you Yahoo!? Take Yahoo! Mail with you! Get it on your mobile phone. http://mobile./maildemo...

  1. #1

    Default AMD64 very slow!

    I have opteron 246 system with 2 port intel em
    card. We have test bed with about 200Kbs traffic
    and we route through 5.3/i386 system. Load is
    about 50%. With same settings, amd64 system run
    with 85% load. How could be so slow? What tuning
    extra is needed for amd64 kernels?

    Boris



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    Boris Guest

  2. #2

    Default Re: AMD64 very slow!

    Am Mittwoch, 23. März 2005 00:38 schrieb Boris Spirialitious: 

    200kB/s sounds like misconfigured duplex/negotiation mode.
    But why don't you try FreeBSD 5.4-BETA1? Many performance improvements were
    achieved and stability is given in the -STABLE branch (BETA1 is a relese of
    FreeBSD 5-STABLE)

    -Harry
     

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    Emanuel Guest

  3. #3

    Default Re: AMD64 very slow!


    -- Emanuel Strobl <net> wrote:
    Am Mittwoch, 23. März 2005 00:38 schrieb Boris 
    >
    > 200kB/s sounds like misconfigured duplex/negotiation
    > mode.
    > But why don't you try FreeBSD 5.4-BETA1? Many
    > performance improvements were
    > achieved and stability is given in the -STABLE
    > branch (BETA1 is a relese of
    > FreeBSD 5-STABLE)[/ref]

    I am sorry, I mean 200Mb/s. It is a controlled stream

    Boris



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  4. #4

    Default Re: AMD64 very slow!

    Am Mittwoch, 23. März 2005 01:19 schrieb Boris Spirialitious: 
    > >
    > > 200kB/s sounds like misconfigured duplex/negotiation
    > > mode.
    > > But why don't you try FreeBSD 5.4-BETA1? Many
    > > performance improvements were
    > > achieved and stability is given in the -STABLE
    > > branch (BETA1 is a relese of
    > > FreeBSD 5-STABLE)[/ref]
    >
    > I am sorry, I mean 200Mb/s. It is a controlled stream[/ref]

    Unfortunately that's a not so uncommon result with em and 5.3. There are
    tuning methods but they won't give the big kick.

    Like mentioned, try 5.4 (BETA1), depending on your employment you'll see
    tremendous improvement, I don't have values handy nor can I confirm that for
    amd64, but you really wnat to try out, especially if this box isn't
    productive yet, which it isn't if I understood correctly.

    -Harry
     

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    =soO1
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    Emanuel Guest

  5. #5

    Default Re: AMD64 very slow!


    Emanuel Strobl wrote: 
    > >
    > > I am sorry, I mean 200Mb/s. It is a controlled stream[/ref]
    >
    > Unfortunately that's a not so uncommon result with em and 5.3. There[/ref]
    are 
    see 
    that for 


    "no numbers handy". Convenient. 5.4 is just as bad as 5.3 IMO

    Dennis

    dennis@etinc.com Guest

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