GBenchGroovy压力测试模块
GBench 是 Groovy 的压力测试模块，提供 @Benchmark / Benchmark AST Transformation 用于实际程序测试以及 BenchmarkBuilder 用于微测试。
你可以通过在 groovy 文件中增加下面一行代码即可，想起请看 Installation
@Grab('com.googlecode.gbench:gbench:0.3.1-groovy-2.0') // v0.3.1 for Groovy 2.0
@Benchmark 实例:
import gbench.*
class Task {
@Benchmark void run() {
// task
}
}
/* Output:
Task void run() user:847000 system:1777000 cpu:2624000 real:4918000
*/
BenchmarkBuilder 实例:
import gbench.*
new BenchmarkBuilder().run {
'StringBuilder' {
def sb = new StringBuilder()
sb.append('foo')
sb.append('bar')
sb.append('baz')
sb.toString()
}
'StringBuffer' {
def sb = new StringBuffer()
sb.append('foo')
sb.append('bar')
sb.append('baz')
sb.toString()
}
}.prettyPrint()
/* Output:
Environment
===========
* Groovy: 2.0.0
* JVM: Java HotSpot(TM) 64-Bit Server VM (23.0-b15, Oracle Corporation)
* JRE: 1.7.0_04-ea
* Total Memory: 99.4375 MB
* Maximum Memory: 1169.8125 MB
* OS: Mac OS X (10.7.3, amd64)
Options
=======
* Warm Up: Auto
* CPU Time Measurement: On
user system cpu real
StringBuilder 236 0 236 237
StringBuffer 263 0 263 267
*/
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