Bench Testing

[IriDium]

Raspberry Pi 2 Single thread

Code:

pi@raspberrypi ~ $ sysbench --test=cpu --cpu-max-prime=20000 --num-threads=1 run
sysbench 0.4.12:  multi-threaded system evaluation benchmark

Running the test with following options:
Number of threads: 1

Doing CPU performance benchmark

Threads started!
Done.

Maximum prime number checked in CPU test: 20000


Test execution summary:
    total time:                          779.6814s
    total number of events:              10000
    total time taken by event execution: 779.6642
    per-request statistics:
         min:                                 77.94ms
         avg:                                 77.97ms
         max:                                117.34ms
         approx.  95 percentile:              77.96ms

Threads fairness:
    events (avg/stddev):           10000.0000/0.00

Raspberry Pi 2 multiple threads

Code:

pi@raspberrypi ~ $ sysbench --test=cpu --cpu-max-prime=20000 --num-threads=4 run
sysbench 0.4.12:  multi-threaded system evaluation benchmark

Running the test with following options:
Number of threads: 4

Doing CPU performance benchmark

Threads started!
Done.

Maximum prime number checked in CPU test: 20000


Test execution summary:
    total time:                          195.8783s
    total number of events:              10000
    total time taken by event execution: 783.3436
    per-request statistics:
         min:                                 77.95ms
         avg:                                 78.33ms
         max:                                128.27ms
         approx.  95 percentile:              78.73ms

Threads fairness:
    events (avg/stddev):           2500.0000/9.22
    execution time (avg/stddev):   195.8359/0.03