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Re: VS3100 vs. RS6000

daemon@ATHENA.MIT.EDU (Jon A. Rochlis)
Tue Mar 31 13:33:46 1992

From: jon@MIT.EDU (Jon A. Rochlis)
To: rita@Athena.MIT.EDU, deckjf@Athena.MIT.EDU, hotline@Athena.MIT.EDU
Cc: rs6000-comments@Athena.MIT.EDU
In-Reply-To: Your message of Tue, 31 Mar 92 11:44:11 -0500.
Date: Tue, 31 Mar 92 13:33:19 GMT

   
   Today I logged into an RS6000 in Bldg. 4-035; usually when I use
   Athena I am on a VS3100 in Bldg 3-462.  I was _amazed_ at how
   quickly the login goes... I mean it is about 15 seconds vs.
   90 sec or 2 min. on the VS3100.
   
   My question is, is this difference really due just to the
   faster CPU (or disk?) in RS6000?  Or is the network (or
   servers) faster in Bldg 4?  

The RS/6000's are much, much faster than the VS3100's.  Somebody else
will know the extact numbers but you are talking probably 5 times in
raw compute power.  Performance is a combination of many factors (the
RS6000's also have more memory and probably faster disks), but with
that much of an increase in CPU you do see a big difference.

I would expect that future machines would be around the same speed of
the RS/6000's, possibly even faster!

		-- Jon
   
   


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