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    Re: TCP speed



        Sorry for poor description..
    
       A multithread program will use different cpu in different thread. For
    example, we use one
    cpu for receving packets to receive queue and the other CPU for sending
    packets from sending
    queue. Hence we can have more CPU power in iSCSI path. An UDP program with
    its sending
    and receiving can archive this situation. I think this will give a
    significant performance than TCP if
    TCP can't use both CPUs proccesing power.
    
       TCP process its own queue in kernel mode. And will this TCP queue is
    processed with 2 CPU?
    
    ----- Original Message -----
    From: "John Hufferd/San Jose/IBM" <hufferd@us.ibm.com>
    To: "Chee-Siong, Lee" <cslee@FalconStor.com.tw>
    Cc: <ips@ece.cmu.edu>
    Sent: Friday, September 15, 2000 3:11 PM
    Subject: Re: TCP speed
    
    
    > I have no idea what you said or asked!
    >
    > .
    > .
    > .
    > John L. Hufferd
    >
    >
    >
    > "Chee-Siong, Lee" <cslee@FalconStor.com.tw>@ece.cmu.edu on 09/14/2000
    > 07:18:52 PM
    >
    > Sent by:  owner-ips@ece.cmu.edu
    >
    >
    > To:   <ips@ece.cmu.edu>
    > cc:
    > Subject:  Re: TCP speed
    >
    >
    >
    >
    >    Is the kernel will use both cpu to process the TCP queue if running a
    > SMP
    > machine?
    > When using multithread UDP process, we can balance the load in
    transmission
    > with 2 CPUs.
    >
    > ---------
    >   cslee
    >
    >
    >
    >
    >
    
    

    • References:
      • Re: TCP speed
        • From: "John Hufferd/San Jose/IBM" <hufferd@us.ibm.com>


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Last updated: Tue Sep 04 01:07:17 2001
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