如何使用cURL一次测量请求和响应时间？ [英] How do I measure request and response times at once using cURL?

问题描述

我有一个网络服务接收JSON格式的数据，处理数据，然后将结果返回给请求者。

我想测量请求，响应和总时间使用 cURL 。

我的示例请求如下：

  curl -X POST -d @file server：port 
  

并且我目前使用Linux中的时间命令来衡量这一点：

 code> time curl -X POST -d @file server：port 
  

有任何方法来测量请求和响应时间。 cURL ？

解决方案

。 https://josephscott.org/archives/2011/10/timing -details-with-curl /

cURL支持请求的格式化输出（请参阅 curl联机帮助页， -w，-write-out< format> ）。

1. 创建新文件，卷曲-format.txt并粘贴：

     time_namelookup：％{time_namelookup} \\\
    
    time_connect：％{time_connect} \\\
    
    time_appconnect：％{time_appconnect} \\\
    
    time_pretransfer：％{time_pretransfer} \\\
    
    time_redirect：％{time_redirect} \\\
    
    time_starttransfer：％{time_starttransfer} \\\
    
    ---------- \\\
    
    time_total：％{time_total} \\\
    
     
    
    
    <$ p $ 
    p>  curl -w@ curl-format.txt-o / dev / null -shttp://wordpress.com/
     pre> 
    
    
   或在Windows上，它是... 
     w@ curl-format.txt-o NUL -shttp://wordpress.com/
     
    







此操作：

-w@ curl-format.txt告诉cURL使用我们的格式文件

-o / dev / null 将请求的输出重定向到/ dev / null

-s
告诉cURL不显示进度表

http://wordpress.com/是
我们要求的网址。如果您的网址有&，请使用引号查询字符串参数

这里是你回来的：

  time_namelookup：0.001 
 time_connect：0.037 
 time_appconnect：0.000 
 time_pretransfer：0.037 
 time_redirect：0.000 
 time_starttransfer：0.092 
 ---------- 
 time_total：0.164 
  

创建Windows快捷方式（也称为BAT文件）

命令在CURLTIME.BAT（在与curl.exe相同的文件夹中）

  curl -w@％〜dp0curl格式。 txt-o NUL -s％* 
  

然后你可以简单地调用...

  curltime wordpress.org 
  

I have a web service that receives data in JSON format, processes the data, and then returns the result to the requester.

I want to measure the request, response, and total time using cURL.

My example request looks like:

curl -X POST -d @file server:port

and I currently measure this using the time command in Linux:

time curl -X POST -d @file server:port

The time command only measures total time, though - which isn't quite what I am looking for.

Is there any way to measure request and response times using cURL?

解决方案

From this brilliant blog post... https://josephscott.org/archives/2011/10/timing-details-with-curl/

cURL supports formatted output for the details of the request (see the cURL manpage for details, under -w, –write-out <format>). For our purposes we’ll focus just on the timing details that are provided.

1. Create a new file, curl-format.txt, and paste in:

       time_namelookup:  %{time_namelookup}\n
          time_connect:  %{time_connect}\n
       time_appconnect:  %{time_appconnect}\n
      time_pretransfer:  %{time_pretransfer}\n
         time_redirect:  %{time_redirect}\n
    time_starttransfer:  %{time_starttransfer}\n
                       ----------\n
            time_total:  %{time_total}\n
   

2. Make a request:

   curl -w "@curl-format.txt" -o /dev/null -s "http://wordpress.com/"
   

   Or on Windows, it's...

   curl -w "@curl-format.txt" -o NUL -s "http://wordpress.com/"
   

What this does:

-w "@curl-format.txt" tells cURL to use our format file
-o /dev/null redirects the output of the request to /dev/null
-s tells cURL not to show a progress meter
"http://wordpress.com/" is the URL we are requesting. Use quotes particularly if your URL has "&" query string parameters

And here is what you get back:

   time_namelookup:  0.001
      time_connect:  0.037
   time_appconnect:  0.000
  time_pretransfer:  0.037
     time_redirect:  0.000
time_starttransfer:  0.092
                   ----------
        time_total:  0.164

Make a Windows shortcut (aka BAT file)

Put this command in CURLTIME.BAT (in the same folder as curl.exe)

curl -w "@%~dp0curl-format.txt" -o NUL -s %*

Then you can simply call...

curltime wordpress.org

这篇关于如何使用cURL一次测量请求和响应时间？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！