系列2 2核4G(独享)

Intel Xeon E5-2680 v3（Haswell）处理器，2.5GHz 的主频。

第一轮

``` 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: 25.9009s total number of events: 10000 total time taken by event execution: 25.8997 per-request statistics: min: 2.58ms avg: 2.59ms max: 3.78ms approx. 95 percentile: 2.59ms

Threads fairness: events (avg/stddev): 10000.0000/0.00 execution time (avg/stddev): 25.8997/0.00

## 第二轮

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: 25.9593s total number of events: 10000 total time taken by event execution: 25.9580 per-request statistics: min: 2.58ms avg: 2.60ms max: 3.77ms approx. 95 percentile: 2.61ms

Threads fairness: events (avg/stddev): 10000.0000/0.00 execution time (avg/stddev): 25.9580/0.00

## 第三轮

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: 25.8912s total number of events: 10000 total time taken by event execution: 25.8900 per-request statistics: min: 2.58ms avg: 2.59ms max: 2.70ms approx. 95 percentile: 2.59ms

Threads fairness: events (avg/stddev): 10000.0000/0.00 execution time (avg/stddev): 25.8900/0.00 ```

结果

26s~