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1 This is cpufreq-bench, a microbenchmark for the cpufreq framework.
9 - Identify average reaction time of a governor to CPU load changes
10 - (Stress) Testing whether a cpufreq low level driver or governor works
14 processes with a higher prio than the governor's kernel thread
27 cpufreq-bench helps to test the condition of a given cpufreq governor.
28 For that purpose, it compares the performance governor to a configured
35 will be run X time in a row (cycles):
51 50ms load/sleep time repeated 20 times (cycles).
55 First it is calibrated how long a specific CPU intensive calculation
56 takes on this machine and needs to be run in a loop using the performance
71 50 ms | 50 ms | 2
73 For example if ondemand governor is configured to have a 50ms
76 In round 1, ondemand should have rather static 50% load and probably
84 will always see 50% loads and you get worst performance impact never
87 50 50 50 50ms ->time
94 50 50 50 50 50 50 50 load seen by ondemand(%)
103 Provide a gnuplot utility script for easy generation of plots to present