1. SIPp概述
1.1 介绍
SIPp是一个测试SIP协议性能的工具软件。这是一个GPL的开放源码软件。
它包含了一些基本的SipStone用户代理工作流程(UAC和UAS),并可使用INVITE和B YE建立和释放多个呼叫。它也可以读XML的场景文件,即描述任何性能测试的配置文件。它能动态显示测试运行的统计数据(呼叫速率、信号来回的延迟,以及 消息统计)。周期性地把CSV统计数据转储,在多个套接字上的TCP和UDP,利用重新传输管理的多路复用。在场景定义文件中可以使用正规表达式,动态调 整呼叫速率。
SIPp可以用来测试许多真实的SIP设备,如SIP代理,B2BUAs,SIP媒体服务器,SIP/x网关,SIP PBX,等等,它也可以模仿上千个SIP代理呼叫你的SIP系统。
关于SIPp从google上搜索到很多,可是关于SIPp的中文说明资料较少,或者很多都是不齐全的安装使用说明。
SIPp的网址:http://sipp.sourceforge.net/
1.2 用途
SIPp一般来进行AS的压力测试,图示如下:
UAC(发起端,主叫)--------------------AS---------------------UAS(接收端,被叫)
其中UAC和UAS都有SIPp来担任。因此可以由它来控制每秒有多少个caps,也可由它来控制一个呼叫持续多长时间等。
2. 安装
2.1 Windows版安装
很简单,省略。
3. SIPp的使用
3.1 运行SIPp
选择“程序”->”Sipp_3.1”->“Start sipp”,运行界面如下所示:
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在命令行运行:sipp,出现帮助信息,如下所示:
the scenarios.
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First line of this file say whether the data is to be
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read in sequence (SEQUENTIAL), random (RANDOM), or user
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(USER) order.
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Each line corresponds to one call and has one or more
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';' delimited data fields. Those fields can be referred
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as [field0], [field1],
in the xml scenario file.
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Several CSV files can be used simultaneously (syntax:
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-inf f1.csv -inf f2.csv
)
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-infindex : file field
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Create an index of file using field. For example -inf
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users.csv -infindex users.csv 0 creates an index on the
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first key.
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-ip_field : Set which field from the injection file contains the IP
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address from which the client will send its messages.
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If this option is omitted and the '-t ui' option is
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present, then field 0 is assumed.
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Use this option together with '-t ui'
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-l : Set the maximum number of simultaneous calls. Once this
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limit is reached, traffic is decreased until the number
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of open calls goes down. Default:
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(3 * call_duration (s) * rate).
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-lost : Set the number of packets to lose by default (scenario
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specifications override this value).
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-m : Stop the test and exit when 'calls' calls are processed
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-mi : Set the local media IP address (default: local primary
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host IP address)
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-master : 3pcc extended mode: indicates the master number
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-max_recv_loops : Set the maximum number of messages received read per
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cycle. Increase this value for high traffic level. The
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default value is 1000.
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-max_sched_loops : Set the maximum number of calsl run per event loop.
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Increase this value for high traffic level. The default
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value is 1000.
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-max_reconnect : Set the the maximum number of reconnection.
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-max_retrans : Maximum number of UDP retransmissions before call ends on
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timeout. Default is 5 for INVITE transactions and 7 for
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others.
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-max_invite_retrans: Maximum number of UDP retransmissions for invite
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transactions before call ends on timeout.
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-max_non_invite_retrans: Maximum number of UDP retransmissions for non-invite
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transactions before call ends on timeout.
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-max_log_size : What is the limit for error and message log file sizes.
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-max_socket : Set the max number of sockets to open simultaneously.
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This option is significant if you use one socket per
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call. Once this limit is reached, traffic is distributed
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over the sockets already opened. Default value is 50000
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-mb : Set the RTP echo buffer size (default: 2048).
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-mp : Set the local RTP echo port number. Default is 6000.
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-nd : No Default. Disable all default behavior of SIPp which
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are the following:
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- On UDP retransmission timeout, abort the call by
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sending a BYE or a CANCEL
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- On receive timeout with no ontimeout attribute, abort
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the call by sending a BYE or a CANCEL
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- On unexpected BYE send a 200 OK and close the call
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- On unexpected CANCEL send a 200 OK and close the call
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- On unexpected PING send a 200 OK and continue the call
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- On any other unexpected message, abort the call by
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sending a BYE or a CANCEL
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-nr : Disable retransmission in UDP mode.
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-nostdin : Disable stdin.
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-p : Set the local port number. Default is a random free port
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chosen by the system.
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-pause_msg_ign : Ignore the messages received during a pause defined in
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the scenario
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-periodic_rtd : Reset response time partition counters each logging
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interval.
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-r : Set the call rate (in calls per seconds). This value can
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bechanged during test by pressing '+','_','*' or '/'.
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Default is 10.
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pressing '+' key to increase call rate by 1 *
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rate_scale,
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pressing '-' key to decrease call rate by 1 *
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rate_scale,
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pressing '*' key to increase call rate by 10 *
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rate_scale,
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pressing '/' key to decrease call rate by 10 *
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rate_scale.
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If the -rp option is used, the call rate is calculated
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with the period in ms given by the user.
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-rp : Specify the rate period for the call rate. Default is 1
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second and default unit is milliseconds. This allows
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you to have n calls every m milliseconds (by using -r n
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-rp m).
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Example: -r 7 -rp 2000 ==> 7 calls every 2 seconds.
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-r 10 -rp 5s => 10 calls every 5 seconds.
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-rate_scale : Control the units for the '+', '-', '*', and '/' keys.
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-rate_increase : Specify the rate increase every -fd units (default is
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seconds). This allows you to increase the load for each
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independent logging period.
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Example: -rate_increase 10 -fd 10s
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==> increase calls by 10 every 10 seconds.
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-rate_max : If -rate_increase is set, then quit after the rate
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reaches this value.
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Example: -rate_increase 10 -rate_max 100
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==> increase calls by 10 until 100 cps is hit.
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-no_rate_quit : If -rate_increase is set, do not quit after the rate
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reaches -rate_max.
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-recv_timeout : Global receive timeout. Default unit is milliseconds. If
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the expected message is not received, the call times out
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and is aborted.
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-send_timeout : Global send timeout. Default unit is milliseconds. If a
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message is not sent (due to congestion), the call times
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out and is aborted.
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-reconnect_close : Should calls be closed on reconnect?
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-reconnect_sleep : How long (in milliseconds) to sleep between the close and
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reconnect?
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-ringbuffer_files: How many error/message files should be kept after
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rotation?
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-ringbuffer_size : How large should error/message files be before they get
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rotated?
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-rsa : Set the remote sending address to host:port for sending
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the messages.
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-rtp_echo : Enable RTP echo. RTP/UDP packets received on port defined
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by -mp are echoed to their sender.
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RTP/UDP packets coming on this port + 2 are also echoed
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to their sender (used for sound and video echo).
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-rtt_freq : freq is mandatory. Dump response times every freq calls
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in the log file defined by -trace_rtt. Default value is
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200.
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-s : Set the username part of the resquest URI. Default is
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'service'.
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-sd : Dumps a default scenario (embeded in the sipp executable)
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-sf : Loads an alternate xml scenario file. To learn more
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about XML scenario syntax, use the -sd option to dump
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embedded scenarios. They contain all the necessary help.
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-oocsf : Load out-of-call scenario.
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-oocsn : Load out-of-call scenario.
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-skip_rlimit : Do not perform rlimit tuning of file descriptor limits.
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Default: false.
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-slave : 3pcc extended mode: indicates the slave number
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-slave_cfg : 3pcc extended mode: indicates the file where the master
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and slave addresses are stored
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-sn : Use a default scenario (embedded in the sipp executable).
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If this option is omitted, the Standard SipStone UAC
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scenario is loaded.
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Available values in this version:
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- 'uac' : Standard SipStone UAC (default).
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- 'uas' : Simple UAS responder.
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- 'regexp' : Standard SipStone UAC - with regexp and
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variables.
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- 'branchc' : Branching and conditional branching in
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scenarios - client.
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- 'branchs' : Branching and conditional branching in
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scenarios - server.
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Default 3pcc scenarios (see -3pcc option):
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- '3pcc-C-A' : Controller A side (must be started after
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all other 3pcc scenarios)
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- '3pcc-C-B' : Controller B side.
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- '3pcc-A' : A side.
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- '3pcc-B' : B side.
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-stat_delimiter : Set the delimiter for the statistics file
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-stf : Set the file name to use to dump statistics
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-t : Set the transport mode:
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- u1: UDP with one socket (default),
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- un: UDP with one socket per call,
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- ui: UDP with one socket per IP address The IP
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addresses must be defined in the injection file.
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- t1: TCP with one socket,
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- tn: TCP with one socket per call,
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- l1: TLS with one socket,
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- ln: TLS with one socket per call,
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- c1: u1 + compression (only if compression plugin
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loaded),
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- cn: un + compression (only if compression plugin
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loaded). This plugin is not provided with sipp.
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3.2 使用SIPp进行压力测试
3.2.1启动服务端
首先查知本机的IP,例如笔者本机的IP为192.168.2.45。在SIPp的运行窗口运行:
sipp -sn uas -i 192.168.2.45 -p 5060
出现的命令窗口的内容类似如下:
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3.2.2启动和运行客户端
再开启一个SIPp界面。
启动客户端使用:sipp -sn uac….,使用如下:
sipp -sn uac -m 1 -i 192.168.2.45 -p 6060 -s 01012345678 192.168.2.154
启动后命令窗口如下所示:
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其中:
-m:该参数表示每秒的caps数,若没写该参数,默认为每秒10个caps;
-i:这个用于指定本机的ip,若本机只有一个ip,可以不指定,若有多个IP,需要指定该参数;
-p:指定本机的端口,可以不指定;
-s:该参数用于指定要呼叫的电话号码;
192.168.1.154为AS的IP地址,没有指定端口时,默认指向的端口为5060。
注意:因为UAC和UAS都在笔者机器,IP为:192.168.2.45,因此AS端还需要对应配置,将落地等的IP地址等都指向该IP。对于我们的环境来说,需要配置SCF的config.as.ACD文件,修改成:
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笔者修改了ss1的IP为:192.168.2.45.
在使用uac前,可使用SIP软终端来测试下是不是呼叫后落地是不是落在本机。
3.2.3查看运行结果
在运行:
sipp -sn uac -i 192.168.2.45 -p 6060 -s 01012345678 192.168.2.154
后(该句为10caps),可查看UAS和UAC的界面,服务端的界面类似如下所示:
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UAC端的界面类似如下所示:
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因为笔者的AS没有发183的流程,所以它的次数是为0的,后续章节还会说到如果不是SIPp的参考流程时该怎么做。
3.2.4查看AS所在的Linux机器的性能情况
1)inmon
公司的SCF提供inmon来查看自动机挂接等的情况,如下所示:
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其中FSMS表示当前挂着的自动机数,是需要关注的项。
2)vmstat
vmstat 命令报告关于内核线程、虚拟内存、磁盘、陷阱和 CPU 活动的统计信息。由 vmstat 命令生成的报告可以用于平衡系统负载活动。系统范围内的这些统计信息(所有的处理器中)都计算出以百分比表示的平均值,或者计算其总和。
例如笔者使用:
vmstat 3
表示每隔3s显示内核线程、虚拟内存、磁盘、陷阱和 CPU 活动的统计信息。界面如下所示:
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重点要关注的项是io和cpu等信息。
3)top
top命令提供了实时的对系统处理器的状态监视。它将显示系统中CPU最“敏感”的任务列表。
运行top命令后,AS所在Linux机器的显示效果如下:
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因为应用主要为cc和mysql,所以要重点关注这两者是否稳定。
主要关注的项是VIRT和RES,如果这两者一直增加,那很可能程序或其它地方存在内存泄露。
3.2.5其它
在UAC端运行的过程中:
1) 按“+”键表示在当前caps的基础中加1;
2) 按“-”键表示在当前caps的基础中减1;
3) 按“*”键表示在当前caps的基础中+运行起点的caps,例如10caps,按“*”后,变成20,再按“*”变成30.
posted on 2009-09-11 13:45
阿蜜果 阅读(15202)
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