Cables

[Paul Eduard Schenker]

Do you have diagrams that show the decrease of performance due to tight
bends? (I would assume the tighter the bend the less performance); I would
be very interested to see them.

Paul

At 01:01 PM 6/6/99 -0400, Leif Hardison wrote:
>
> The reason you may notice improvement by using less pairs
> is because you cut down on factors like interferance. Also
> if you wish to get the best performance you will want to
> crimp wires from loosely packed spools and make sure there
> are no tight bends. If you bend a wire at to sharp of an
> angle you will loose performance.
>
> I can snag some diagrams if anyone wishes.
>
>   -Leif Hardison
>    hardware.doa.org
>
>On Sun, 6 Jun 1999, Paul Eduard Schenker wrote:
>
>> We looked at SCSI and dropped it; Myrinet looks good if you really need the
>> bandwith.
>> 
>> About FastEthernet: we've exxperimented with cables with only 4 wires, and
>> they seem to work quite well (in some cases we observed a perfomance
>> improvement for which I have absolutely no explanation). Any experience in
>> this field?
>> 
>> Paul
>>  
>> At 04:29 PM 6/1/99 +0200, Martin Konold wrote:
>> >On Tue, 1 Jun 1999, Alvin Starr wrote:
>> >
>> >> At 80Mbytes/sec SCSI can make for a fast link between a small number of
>> >> systems and with a low overhead protocol it could help solve some of the
>> >> problems involved in trying to share memory across a network. 
>> >
>> >No, unfortunately the overhead of SCSI is compared to SCI and Myrinet
>> >tremendeous. (Latencies in the ms range)
>> >
>> >Regards,
>> >-- martin
>> >
>> >// Martin Konold, Herrenbergerstr. 14, 72070 Tuebingen, Germany  //
>> >// Email: konold@kde.org                                         //
>> >KDE:  A stable GUI for a reliable OS.
>> >UNIX: Everything including a device is a file.
>> >KDE:  Everything including a file is a URL.
>> >
>> >
>> >
>> Paul Eduard Schenker
>> 1 Peirce Hill
>> Singapore 248558
>> 
>> Phone: 	476 2245
>> Fax:		472 6480
>> email:		pesch@ibm.net
>> 
>
>
>
Paul Eduard Schenker
1 Peirce Hill
Singapore 248558

Phone: 	476 2245
Fax:		472 6480
email:		pesch@ibm.net