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*** Performance Evaluations in VMWare Workstation 12 Player ***
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[ Abstract ] Virtualization software, like WMware Player or Oracle VM Virtual Box, improves productivity and capabilities of software engineers by virtualizing some Operating System ( Guest OS ) inside another Operating System ( Host OS ). Virtualization software allows to reuse hardware to run several OSs at the same time. However, performance of processing is affected and results of testing clearly demonstrate it.
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[ Linux Ubuntu 16.04 LTS in VMware Player Workstation 12 on Dell Precision Mobile Workstation ]
Intel Core i7-3840QM ( 2.80 GHz / Ivy Bridge / 4 cores )
Processor : Intel Core i7-3840QM
Cores : 4
Processors ( CPUs ): 8
http://ark.intel.com/products/70846
Windows 7 SP1 is a Host OS.
Linux Ubuntu 16.04 LTS is a Guest OS.
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[ Linux Ubuntu on IVB virtualized Test 1 ]
...
ubuntu@ubuntu-vm:~/WorkEnvMIC$ ./hpctest1.out
Starting Compute
GFlops = 25.600, Secs = 4.039, GFlops per sec = 6.338
...
[ Linux Ubuntu on IVB virtualized Test 2 ]
...
ubuntu@ubuntu-vm:~/WorkEnvMIC$ ./hpctest2.out
Starting Compute on 2 threads
GFlops = 51.200, Secs = 6.626, GFlops per sec = 7.727
...
[ Linux Ubuntu on IVB virtualized Test 3 ]
...
ubuntu@ubuntu-vm:~/WorkEnvMIC$ ./hpctest3.out
Starting Compute on 4 threads
GFlops = 204.800, Secs = 14.818, GFlops per sec = 13.821
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[ Windows 7 on IVB real Test 1 ]
...
..\WorkEnvMIC>hpctest1.exe
Starting Compute
GFlops = 25.600, Secs = 3.233, GFlops per sec = 7.918
...
[ Windows 7 on IVB real Test 2 ]
...
..\WorkEnvMIC>hpctest2.exe
Starting Compute on 2 threads
GFlops = 51.200, Secs = 4.830, GFlops per sec = 10.600
...
[ Windows 7 on IVB real Test 3 ]
...
..\WorkEnvMIC>hpctest3.exe
Starting Compute on 4 threads
GFlops = 102.400, Secs = 6.365, GFlops per sec = 16.087
...
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[ Summary ]
Performance is affected when some processing is done in a virtualized environment:
Test 1 is ~1.26x slower ( 7.918 / 6.338 )
Test 2 is ~1.37x slower ( 10.600 / 7.727 )
Test 3 is ~1.16x slower ( 16.087 / 13.821 )
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Sergey,
Thanks for sharing this information. Can you share the test you are running? I mean, is it open source code?
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>>...Can you share the test you are running?..
Please use STREAM benchmark if you would like to evaluate performance of your system(s).
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@Sergey,
Thanks for sharing the test you are running.
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I also recommend to read IDZ article Optimizing Memory Bandwidth in Knights Landing on Stream Triad at https://software.intel.com/en-us/articles/optimizing-memory-bandwidth-in-knights-landing-on-stream-triad
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Sergey,
Thanks for the article recommendation. I had missed this one on IDZ, and therefore, your linked allow me to know about it and read it. :)
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