Open Source Automation Development Lab
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2015-05-23 - 10:45

Intel(R) Core(TM) i7-2600K CPU @ 3.40GHz, Linux 3.18.13-rt9 (Profile)

Latency plot of system in rack #4, slot #6

Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Command line: cyclictest -l100000000 -m -Sp99 -i200 -h200 -q
Total number of samples: 100 million
Duration: 5 hours, 33 minutes, lowest P state: performance
Characteristics of the highest latencies:

 

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