UnixBench has been around for a long time now, and is a good general-purpose bench to test on Linux based systems. This is a system benchmark, and it shows the performance of single threaded and multi-threaded tasks.
This shows the system indexes after a complete UnixBench run. Here, we get an idea of how much performance gains we get using multi-threaded applications. However, many applications use single threaded, so this number is really the base, and a higher clock speed will increase both indexes.
SPEC CPU2006v1.2 measures compute intensive performance across the system using realistic benchmarks to rate real performance.
In our testing with SPEC CPU2006 we use the basic commands to run these tests.
Runspec --tune=base --config=tweaktown.cfg then int or fp
To do multi-threaded we add in --rate=72 on the RS520-E8-RS8 server.
When SPEC CPU first came out these tests could take up to a week to run, but as computers become faster, our tests can take up to four days for a full run. The user can do many thing to effect the results of CPU2006 runs, such as compiler optimizations, addons like Smartheap and different commands used in to start the tests.
Here, you can see the SPEC scores after full runs for Integer (int) and Floating Point (fp) tests. Single core runs show how fast (speed) a CPU can perform a given task. In the multi-core runs, we set SPEC CPU2006v1.2 to use all threads, and this is a measure of the throughput of the system.
The additional core/threads of this system has a huge impact on performance in these tests and really shows the amount of horse power that a dual socket system has over a single socket board. Single threaded results are still very important, but when you need lots of those to run moving to a dual socket setup is the way to go.
Looking at the results of single threaded integer runs, we can get an idea of speed at which the Intel Xeon E5-2699 v3's can crunch through the different integer tests. Not all CPUs are equal here, and ones that have a higher speed will perform these tests faster. In this case, this is the stock speed of the Intel Xeon E5-2699 v3. Naturally, using an overclocked system or CPUs with a higher stock speed will generate higher results.
Now we run the test using all 72 threads of the Intel Xeon E5-2699 v3's, to measure the throughput of the system. In this test, more cores/threads will have a greater effect on the outcome.
Just like the integer tests, we now run the floating-point tests in single (speed) mode. We do see strong results with the Intel Xeon E5-2699 v3's in this test.
Here, we see the results of the multi-threaded floating-point run that uses all 72 threads of the Intel Xeon E5-2699 v3's. Like the multi-threaded integer test, more cores/threads will have a greater impact on the test. Just the single threaded FP runs we see a strong advantage with using Intel Xeon E5-2699 v3's in this test.
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