Skip to content

Instantly share code, notes, and snippets.

@yanhua365
Last active August 29, 2015 14:06
Show Gist options
  • Save yanhua365/5949cdd1be22aa3ce4e0 to your computer and use it in GitHub Desktop.
Save yanhua365/5949cdd1be22aa3ce4e0 to your computer and use it in GitHub Desktop.
使用groovy和gbench对文件操作的两种方式(append和writer)进行基准测试(来自:https://stackoverflow.com/questions/23552282/groovy-file-append-vs-file-newwriter)
@Grab(group='org.gperfutils', module='gbench', version='0.4.2-groovy-2.1')
def b = benchmark {
'append' {
def f = File.createTempFile('file', 'append')
(1..1000).each {
f.append(it.toString())
}
}
'writer' {
def f = File.createTempFile('file', 'writer')
def w = f.withWriter{w->
(1..1000).each {
w.write(it.toString())
}
}
}
}
b.prettyPrint(
Environment
===========
* Groovy: 2.2.1
* JVM: Java HotSpot(TM) 64-Bit Server VM (24.45-b08, Oracle Corporation)
* JRE: 1.7.0_45
* Total Memory: 103.5 MB
* Maximum Memory: 114 MB
* OS: Windows 8 (6.2, amd64)
Options
=======
* Warm Up: Auto (- 60 sec)
* CPU Time Measurement: On
user system cpu real
append 26028989 343758049 369787038 398199984
writer 395846 1425295 1821141 1960860
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment