16

我正在使用 ApacheBench 来获取一些基本的时间信息。很好地满足了我的需求。我注意到“-g 文件”创建了一个制表符分隔文件,每个调用都作为一行。但是,我无法确定列的定义。这是我最好的猜测:

starttime:不言自明,此调用开始的时间

:根据数据,我认为这可能是不同格式的“开始时间”

ctime : ?,对我来说每一行都有一个 0 值,所以不知道

dtimettimewait: dtime 或 ttime 或 wait 似乎是“此调用以毫秒为单位的时间”

AB 文档似乎没有涵盖输出格式。任何人都知道这些列的含义,或者我在哪里可以找到一些文档?

4

3 回答 3

18

以下是我的推断:

  • ctime:连接时间
  • dtime:处理时间
  • ttime:总时间
  • 等待:等待时间

我是如何推断的:

$ ab -v 2 -n 1 -c 1 -g output.txt http://stackoverflow.com/questions/5929104/apache-bench-gnuplot-output-wha
This is ApacheBench, Version 2.3 <$Revision: 655654 $>
Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Licensed to The Apache Software Foundation, http://www.apache.org/

Benchmarking stackoverflow.com (be patient)...INFO: POST header ==
---
GET /questions/5929104/apache-bench-gnuplot-output-what-are-the-column-definitions HTTP/1.0
Host: stackoverflow.com
User-Agent: ApacheBench/2.3
Accept: */*


---
LOG: header received:
HTTP/1.1 200 OK
Cache-Control: public, max-age=60
Content-Type: text/html; charset=utf-8
Expires: Thu, 26 May 2011 19:24:52 GMT
Last-Modified: Thu, 26 May 2011 19:23:52 GMT
Vary: *
Date: Thu, 26 May 2011 19:23:51 GMT
Connection: close
Content-Length: 29118

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>

<title>performance testing - apache bench gnuplot output - what are the column definitions? - Stack Overflow
<link rel="shortcut icon" href="http://cdn.sstatic.net/stackoverflow/img/favicon.ico">
<link rel="apple-touch-icon" href="http://cdn.sstatic.net/stackoverflow/img/apple-touch-icon.png">
<link rel="search" type="application/opensearchdescription+xml" title="Stack Overflow" href="/opensearch.xml
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.5.2/jquery.min.js"></scrip
<script type="text/javascript" src="http://cdn.sstatic.net/js/stub.js?v=005820c36f6e"></script>
<link rel="stylesheet" type="text/css" href="http://cdn.sstatic.net/stackoverflow/all.css?v=d75e6659067e">


    <link rel="canonical" href="http://stackoverflow.com/questions/5929104/apache-bench-gnuplot-output-what-
    <link rel="alternate" type="application/atom+xml" title="Feed for question 'apache bench gnuplot output
..done


Server Software:
Server Hostname:        stackoverflow.com
Server Port:            80

Document Path:          /questions/5929104/apache-bench-gnuplot-output-what-are-the-column-definitions
Document Length:        29118 bytes

Concurrency Level:      1
Time taken for tests:   0.330 seconds
Complete requests:      1
Failed requests:        0
Write errors:           0
Total transferred:      29386 bytes
HTML transferred:       29118 bytes
Requests per second:    3.03 [#/sec] (mean)
Time per request:       329.777 [ms] (mean)
Time per request:       329.777 [ms] (mean, across all concurrent requests)
Transfer rate:          87.02 [Kbytes/sec] received

Connection Times (ms)
              min  mean[+/-sd] median   max
Connect:       79   79   0.0     79      79
Processing:   251  251   0.0    251     251
Waiting:       91   91   0.0     91      91
Total:        330  330   0.0    330     330

相比于:

$ cat output.txt
starttime       seconds ctime   dtime   ttime   wait
Thu May 26 12:24:02 2011        1306437842      79      251     330     91
于 2011-05-26T19:28:03.997 回答
11

这里有一个很好的解释(包括wait接受的答案中缺少的解释):

在此处输入图像描述

于 2016-01-14T09:19:45.170 回答
2

我得出了与 saltycrane 相同的结果,但想补充一些(并想总结一下):

  • starttime:不言自明,此呼叫开始的时间(如问题所述)
  • 秒:作为unix时间戳的开始时间(date -d @1306437842返回开始时间输出)
  • ctime:连接时间
  • dtime:处理时间
  • ttime:总时间(ttime = ctime + dtime)
  • 等待:等待时间
于 2013-03-02T17:56:04.200 回答