httperf命令选项

Question

我需要为apache执行3种类型的性能测试。

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

我看过httperf手册，但是，我真的很困惑于各种各样的选项，比如，速率，num，num-conn，-wsess。

有人能帮我做以下的事吗？

如何指定持续时间以及如何配置-速率、-num-conn和--num-调用，以便测试将在指定的持续时间内以指定的请求数/秒执行？

Answer 1

我会这样做：

500次请求/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

NOTE1: --rate指定要创建连接/会话的固定速率。

NOTE2: --num-conn指定要创建的连接总数。因此，如果要创建X req/秒，则需要执行X * 60秒，以便指定时间长度。

最后一点是用httperf找出的最难的东西。时间长度是速率的函数&连接的数量，您没有指定它。

因此，对于你的例子：

 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.

康涅狄格

--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.