[Opensim-users] Is hyperthreading useful in an OpenSim server? (UNCLASSIFIED)

[Maxwell, Douglas CIV USARMY RDECOM ARL (US)]

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No.

v/r -doug

Douglas Maxwell, Ph.D.
Science and Technology Manager
Virtual World Strategic Applications
U.S. Army Research Lab
Simulation & Training Technology Center (STTC)
(c) (407) 242-0209



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Sent: Sunday, September 27, 2015 1:08 PM
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Subject: [Opensim-users] Is hyperthreading useful in an OpenSim server?

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I'm planning to build a new server for my grid and am wondering whether the
virtual cores provided by hyperthreading (i7, some Xeons) are an advantage
in an OpenSim server over a non-hyperthreaded CPU (i5, most Xeons)?

My current server's i7 CPU has hyperthreading. I would like to test its
effect on performance by disabling and enabling hyperthreading in the BIOS.
Is there a more accurate way to test than using viewer fps and statistics?
I'm currently running OpenSim 0.7.6 on OpenSUSE Linux (I will upgrade soon
to the latest OpenSim).

I've considered dual Xeons, but power consumption is a problem. If a
non-hyperthreaded CPU performs as well or close to one that's hyperthreaded,
then I might get a dual socket motherboard but wait to buy the second Xeon
until my grid expands (it's possible to use a single CPU on at least some
dual socket Supermicro boards).

Thanks!  I appreciate any advice.


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