root@sysbench-test-hc:~# for each in 1 2 4 8 16; do sysbench --test=cpu --cpu-max-prime=20000 --num-threads=
$each run; done
WARNING: the --test option is deprecated. You can pass a script name or path on the command line without any
 options.
sysbench 1.0.11 (using system LuaJIT 2.1.0-beta3)

Running the test with following options:
Number of threads: 1
Initializing random number generator from current time


Prime numbers limit: 20000

Initializing worker threads...

Threads started!

CPU speed:
    events per second:   380.05

General statistics:
    total time:                          10.0015s
    total number of events:              3802

Latency (ms):
         min:                                  2.58
         avg:                                  2.63
         max:                                  7.32
         95th percentile:                      2.76
         sum:                               9989.21

Threads fairness:
    events (avg/stddev):           3802.0000/0.00
    execution time (avg/stddev):   9.9892/0.00

WARNING: the --test option is deprecated. You can pass a script name or path on the command line without any
 options.
WARNING: --num-threads is deprecated, use --threads instead
sysbench 1.0.11 (using system LuaJIT 2.1.0-beta3)

Running the test with following options:
Number of threads: 2
Initializing random number generator from current time


Prime numbers limit: 20000

Initializing worker threads...

Threads started!

CPU speed:
    events per second:   759.82

General statistics:
    total time:                          10.0018s
    total number of events:              7601

Latency (ms):
         min:                                  2.58
         avg:                                  2.63
         max:                                  8.26
         95th percentile:                      2.66
         sum:                              19988.51

Threads fairness:
    events (avg/stddev):           3800.5000/15.50
    execution time (avg/stddev):   9.9943/0.00

WARNING: the --test option is deprecated. You can pass a script name or path on the command line without any
 options.
WARNING: --num-threads is deprecated, use --threads instead
sysbench 1.0.11 (using system LuaJIT 2.1.0-beta3)

Running the test with following options:
Number of threads: 4
Initializing random number generator from current time


Prime numbers limit: 20000

Initializing worker threads...

Threads started!

CPU speed:
    events per second:  1516.00

General statistics:
    total time:                          10.0025s
    total number of events:              15171

Latency (ms):
         min:                                  2.58
         avg:                                  2.64
         max:                                  7.73
         95th percentile:                      2.76
         sum:                              39990.65

Threads fairness:
    events (avg/stddev):           3792.7500/14.04
    execution time (avg/stddev):   9.9977/0.00

WARNING: the --test option is deprecated. You can pass a script name or path on the command line without any
 options.
WARNING: --num-threads is deprecated, use --threads instead
sysbench 1.0.11 (using system LuaJIT 2.1.0-beta3)

Running the test with following options:
Number of threads: 8
Initializing random number generator from current time


Prime numbers limit: 20000

Initializing worker threads...

Threads started!

CPU speed:
    events per second:  1515.56

General statistics:
    total time:                          10.0040s
    total number of events:              15164

Latency (ms):
         min:                                  2.58
         avg:                                  5.27
         max:                                 34.61
         95th percentile:                     14.73
         sum:                              79840.90

Threads fairness:
    events (avg/stddev):           1895.5000/16.96
    execution time (avg/stddev):   9.9801/0.01

WARNING: the --test option is deprecated. You can pass a script name or path on the command line without any
 options.
WARNING: --num-threads is deprecated, use --threads instead
sysbench 1.0.11 (using system LuaJIT 2.1.0-beta3)

Running the test with following options:
Number of threads: 16
Initializing random number generator from current time


Prime numbers limit: 20000

Initializing worker threads...

Threads started!

CPU speed:
    events per second:  1521.19

General statistics:
    total time:                          10.0064s
    total number of events:              15224

Latency (ms):
         min:                                  2.58
         avg:                                 10.48
         max:                                 50.63
         95th percentile:                     26.68
         sum:                             159496.40

Threads fairness:
    events (avg/stddev):           951.5000/11.72
    execution time (avg/stddev):   9.9685/0.03

root@sysbench-test-hc:~#