apache - httperf 命令选项

Question

我需要对apache执行3种类型的性能测试。

1. 每秒 500 个请求，持续 60 秒
2. 1000 个请求/秒，持续 60 秒
3. 1500 个请求/秒，持续 60 秒

我浏览了 httperf 手册，但是，我真的对各种选项感到困惑例如，--rate、--num-call、--num-conn、--wsess

有人可以帮我解决以下问题吗:

如何指定持续时间以及如何配置 --rate 、 --num-conn 和 --num-calls 以便测试将在指定的持续时间和指定的请求数/秒内执行？

Answer 1

我会做这样的事情:

500 个请求/秒，持续 60 秒

httperf --hog --server www.google.com --uri "/" --num-conn 30000 --num-call 1 \
      --timeout 5 --rate 500 --port 80

1000 个请求/秒，持续 60 秒

httperf --hog --server www.google.com --uri "/" --num-conn 60000 --num-call 1 \
      --timeout 5 --rate 1000 --port 80

1500 个请求/秒，持续 60 秒

httperf --hog --server www.google.com --uri "/" --num-conn 75000 --num-call 1 \
      --timeout 5 --rate 1500 --port 80

注意1: --rate 指定创建连接/ session 的固定速率。

注意2: --num-conn 指定要创建的连接总数。因此，如果您要创建 X 请求/秒，则需要执行 X * 60 秒，以便指定时间长度。

最后一点是 httperf 最难弄清楚的事情。时间长度是速率和连接数的函数，您无需指定它。

举个例子:

 500 req/sec @ 60 sec duration =  500 * 60 = 30,000 connections
1000 req/sec @ 60 sec duration = 1000 * 60 = 60,000 connections
1500 req/sec @ 60 sec duration = 1500 * 60 = 90,000 connections

有关 httperf 的更多详细信息，请参阅手册页。

率

--rate=X        Specifies the fixed rate at which connections or sessions are created.
                Connections are created by default, sessions if option --wsess  or  
                --wsesslog has been specified. In both cases a rate of 0 results 
                in connections or sessions being generated sequentially (a new 
                session/connection is initiated as soon as the previous one 
                completes). The default value for this option is 0.

num-conn

--num-conn=N    This  option is meaningful for request-oriented workloads only. It
                specifies the total number of connections to create. On each
                connection, calls are issued as specified by options --num-calls 
                and --burst-length. A test stops as soon as the N connections have
                either completed or failed. A connection is considered to have
                failed if any activity on the connection fails to make forward 
                progress for more than the time specified by the timeout options 
                --timeout and --think-time‐out. The default value for this option is 1.