We are using Sunray3's to access and run Cadence IC-CAD tools on Linux servers.
that is: login in to Sunray, ssh to a Linux server, run Cadence on the Linux
server.
What I see is: opening a cell layout, or panning around the cell layout using
the Sunray3,
takes ~8x longer than the same task on my 2011 i7 MacbookPro: =ssh to same
Linux server,
and run Cadence on the same cell data, on the same network.
Also, the Sunray3 takes about 2x longer on the same task as from my Win7 PC with
Xmanager/Xshell(xterminal) to the same Linux server.
Now in both the Macbook case and the Win7PC case, there is local graphic
processing,
where the Sunray does not have much(any?) graphic processing. The Sunray3 just
takes
the pixel-data, that it receives( packed in UDP, I think ) and sends that to
the monitor.
So my question is, does this sound reasonable ? for CAD data to take that
much longer
to draw and pan, compared to a MacbookPro or a Win7 PC ?
Note1, our SRSS was updated last fall, so I think we are up-to-date on the
server software.
Note2: I have tried this same experiment with two 10ZiG(PC-over-IP) thin
clients(Tera1 and Tera2 chipsets),
and I get the same results I get with the Sunray3.
--> this leads me to believe the Sunray approach and the PC-over-IP
approach(both sending pixel data
over Ethernet) are not going to work with CAD data.
Could it be the case that Sunrays were never intended to be used for CAD tools ?
Or, is it possible we are missing some switch on the Sunray server that would
improve the video performance ?
thanks,
-steve
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{txaceray:~} uname -a
SunOS txaceray 5.10 Generic_147441-01 i86pc i386 i86pc
{txaceray:~} more /etc/release
Oracle Solaris 10 8/11 s10x_u10wos_17b X86
Copyright (c) 1983, 2011, Oracle and/or its affiliates.
All rights reserved. Assembled 23 August 2011
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