1. SIPp概述
1.1 介紹
SIPp是一個測試SIP協議性能的工具軟件。這是一個GPL的開放源碼軟件。
它包含了一些基本的SipStone用戶代理工作流程(UAC和UAS),并可使用INVITE和B YE建立和釋放多個呼叫。它也可以讀XML的場景文件,即描述任何性能測試的配置文件。它能動態顯示測試運行的統計數據(呼叫速率、信號來回的延遲,以及 消息統計)。周期性地把CSV統計數據轉儲,在多個套接字上的TCP和UDP,利用重新傳輸管理的多路復用。在場景定義文件中可以使用正規表達式,動態調 整呼叫速率。
SIPp可以用來測試許多真實的SIP設備,如SIP代理,B2BUAs,SIP媒體服務器,SIP/x網關,SIP PBX,等等,它也可以模仿上千個SIP代理呼叫你的SIP系統。
關于SIPp從google上搜索到很多,可是關于SIPp的中文說明資料較少,或者很多都是不齊全的安裝使用說明。
SIPp的網址:http://sipp.sourceforge.net/
1.2 用途
SIPp一般來進行AS的壓力測試,圖示如下:
UAC(發起端,主叫)--------------------AS---------------------UAS(接收端,被叫)
其中UAC和UAS都有SIPp來擔任。因此可以由它來控制每秒有多少個caps,也可由它來控制一個呼叫持續多長時間等。
2. 安裝
2.1 Windows版安裝
很簡單,省略。
3. SIPp的使用
3.1 運行SIPp
選擇“程序”->”Sipp_3.1”->“Start sipp”,運行界面如下所示:

在命令行運行:sipp,出現幫助信息,如下所示:
the scenarios.

First line of this file say whether the data is to be

read in sequence (SEQUENTIAL), random (RANDOM), or user

(USER) order.

Each line corresponds to one call and has one or more

';' delimited data fields. Those fields can be referred

as [field0], [field1],
in the xml scenario file.

Several CSV files can be used simultaneously (syntax:

-inf f1.csv -inf f2.csv
)

-infindex : file field

Create an index of file using field. For example -inf

users.csv -infindex users.csv 0 creates an index on the

first key.

-ip_field : Set which field from the injection file contains the IP

address from which the client will send its messages.

If this option is omitted and the '-t ui' option is

present, then field 0 is assumed.

Use this option together with '-t ui'

-l : Set the maximum number of simultaneous calls. Once this

limit is reached, traffic is decreased until the number

of open calls goes down. Default:

(3 * call_duration (s) * rate).

-lost : Set the number of packets to lose by default (scenario

specifications override this value).

-m : Stop the test and exit when 'calls' calls are processed

-mi : Set the local media IP address (default: local primary

host IP address)

-master : 3pcc extended mode: indicates the master number

-max_recv_loops : Set the maximum number of messages received read per

cycle. Increase this value for high traffic level. The

default value is 1000.

-max_sched_loops : Set the maximum number of calsl run per event loop.

Increase this value for high traffic level. The default

value is 1000.

-max_reconnect : Set the the maximum number of reconnection.


-max_retrans : Maximum number of UDP retransmissions before call ends on

timeout. Default is 5 for INVITE transactions and 7 for

others.

-max_invite_retrans: Maximum number of UDP retransmissions for invite

transactions before call ends on timeout.

-max_non_invite_retrans: Maximum number of UDP retransmissions for non-invite

transactions before call ends on timeout.

-max_log_size : What is the limit for error and message log file sizes.


-max_socket : Set the max number of sockets to open simultaneously.

This option is significant if you use one socket per

call. Once this limit is reached, traffic is distributed

over the sockets already opened. Default value is 50000

-mb : Set the RTP echo buffer size (default: 2048).

-mp : Set the local RTP echo port number. Default is 6000.

-nd : No Default. Disable all default behavior of SIPp which

are the following:

- On UDP retransmission timeout, abort the call by

sending a BYE or a CANCEL

- On receive timeout with no ontimeout attribute, abort

the call by sending a BYE or a CANCEL

- On unexpected BYE send a 200 OK and close the call

- On unexpected CANCEL send a 200 OK and close the call

- On unexpected PING send a 200 OK and continue the call

- On any other unexpected message, abort the call by

sending a BYE or a CANCEL

-nr : Disable retransmission in UDP mode.

-nostdin : Disable stdin.

-p : Set the local port number. Default is a random free port

chosen by the system.

-pause_msg_ign : Ignore the messages received during a pause defined in

the scenario

-periodic_rtd : Reset response time partition counters each logging

interval.

-r : Set the call rate (in calls per seconds). This value can

bechanged during test by pressing '+','_','*' or '/'.

Default is 10.

pressing '+' key to increase call rate by 1 *

rate_scale,

pressing '-' key to decrease call rate by 1 *

rate_scale,

pressing '*' key to increase call rate by 10 *

rate_scale,

pressing '/' key to decrease call rate by 10 *

rate_scale.

If the -rp option is used, the call rate is calculated

with the period in ms given by the user.

-rp : Specify the rate period for the call rate. Default is 1

second and default unit is milliseconds. This allows

you to have n calls every m milliseconds (by using -r n

-rp m).

Example: -r 7 -rp 2000 ==> 7 calls every 2 seconds.

-r 10 -rp 5s => 10 calls every 5 seconds.


-rate_scale : Control the units for the '+', '-', '*', and '/' keys.


-rate_increase : Specify the rate increase every -fd units (default is

seconds). This allows you to increase the load for each

independent logging period.

Example: -rate_increase 10 -fd 10s

==> increase calls by 10 every 10 seconds.

-rate_max : If -rate_increase is set, then quit after the rate

reaches this value.

Example: -rate_increase 10 -rate_max 100

==> increase calls by 10 until 100 cps is hit.

-no_rate_quit : If -rate_increase is set, do not quit after the rate

reaches -rate_max.

-recv_timeout : Global receive timeout. Default unit is milliseconds. If

the expected message is not received, the call times out

and is aborted.

-send_timeout : Global send timeout. Default unit is milliseconds. If a

message is not sent (due to congestion), the call times

out and is aborted.

-reconnect_close : Should calls be closed on reconnect?

-reconnect_sleep : How long (in milliseconds) to sleep between the close and

reconnect?

-ringbuffer_files: How many error/message files should be kept after

rotation?

-ringbuffer_size : How large should error/message files be before they get

rotated?

-rsa : Set the remote sending address to host:port for sending

the messages.

-rtp_echo : Enable RTP echo. RTP/UDP packets received on port defined

by -mp are echoed to their sender.

RTP/UDP packets coming on this port + 2 are also echoed

to their sender (used for sound and video echo).

-rtt_freq : freq is mandatory. Dump response times every freq calls

in the log file defined by -trace_rtt. Default value is

200.

-s : Set the username part of the resquest URI. Default is

'service'.

-sd : Dumps a default scenario (embeded in the sipp executable)

-sf : Loads an alternate xml scenario file. To learn more

about XML scenario syntax, use the -sd option to dump

embedded scenarios. They contain all the necessary help.

-oocsf : Load out-of-call scenario.


-oocsn : Load out-of-call scenario.

-skip_rlimit : Do not perform rlimit tuning of file descriptor limits.

Default: false.

-slave : 3pcc extended mode: indicates the slave number

-slave_cfg : 3pcc extended mode: indicates the file where the master

and slave addresses are stored

-sn : Use a default scenario (embedded in the sipp executable).

If this option is omitted, the Standard SipStone UAC

scenario is loaded.

Available values in this version:

- 'uac' : Standard SipStone UAC (default).

- 'uas' : Simple UAS responder.

- 'regexp' : Standard SipStone UAC - with regexp and

variables.

- 'branchc' : Branching and conditional branching in

scenarios - client.

- 'branchs' : Branching and conditional branching in

scenarios - server.

Default 3pcc scenarios (see -3pcc option):


- '3pcc-C-A' : Controller A side (must be started after

all other 3pcc scenarios)

- '3pcc-C-B' : Controller B side.

- '3pcc-A' : A side.

- '3pcc-B' : B side.

-stat_delimiter : Set the delimiter for the statistics file

-stf : Set the file name to use to dump statistics

-t : Set the transport mode:

- u1: UDP with one socket (default),

- un: UDP with one socket per call,

- ui: UDP with one socket per IP address The IP

addresses must be defined in the injection file.

- t1: TCP with one socket,

- tn: TCP with one socket per call,

- l1: TLS with one socket,

- ln: TLS with one socket per call,

- c1: u1 + compression (only if compression plugin

loaded),

- cn: un + compression (only if compression plugin

loaded). This plugin is not provided with sipp.

3.2 使用SIPp進行壓力測試
3.2.1啟動服務端
首先查知本機的IP,例如筆者本機的IP為192.168.2.45。在SIPp的運行窗口運行:
sipp -sn uas -i 192.168.2.45 -p 5060
出現的命令窗口的內容類似如下:

3.2.2啟動和運行客戶端
再開啟一個SIPp界面。
啟動客戶端使用: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
啟動后命令窗口如下所示:

其中:
-m:該參數表示每秒的caps數,若沒寫該參數,默認為每秒10個caps;
-i:這個用于指定本機的ip,若本機只有一個ip,可以不指定,若有多個IP,需要指定該參數;
-p:指定本機的端口,可以不指定;
-s:該參數用于指定要呼叫的電話號碼;
192.168.1.154為AS的IP地址,沒有指定端口時,默認指向的端口為5060。
注意:因為UAC和UAS都在筆者機器,IP為:192.168.2.45,因此AS端還需要對應配置,將落地等的IP地址等都指向該IP。對于我們的環境來說,需要配置SCF的config.as.ACD文件,修改成:

筆者修改了ss1的IP為:192.168.2.45.
在使用uac前,可使用SIP軟終端來測試下是不是呼叫后落地是不是落在本機。
3.2.3查看運行結果
在運行:
sipp -sn uac -i 192.168.2.45 -p 6060 -s 01012345678 192.168.2.154
后(該句為10caps),可查看UAS和UAC的界面,服務端的界面類似如下所示:

UAC端的界面類似如下所示:

因為筆者的AS沒有發183的流程,所以它的次數是為0的,后續章節還會說到如果不是SIPp的參考流程時該怎么做。
3.2.4查看AS所在的Linux機器的性能情況
1)inmon
公司的SCF提供inmon來查看自動機掛接等的情況,如下所示:

其中FSMS表示當前掛著的自動機數,是需要關注的項。
2)vmstat
vmstat 命令報告關于內核線程、虛擬內存、磁盤、陷阱和 CPU 活動的統計信息。由 vmstat 命令生成的報告可以用于平衡系統負載活動。系統范圍內的這些統計信息(所有的處理器中)都計算出以百分比表示的平均值,或者計算其總和。
例如筆者使用:
vmstat 3
表示每隔3s顯示內核線程、虛擬內存、磁盤、陷阱和 CPU 活動的統計信息。界面如下所示:

重點要關注的項是io和cpu等信息。
3)top
top命令提供了實時的對系統處理器的狀態監視。它將顯示系統中CPU最“敏感”的任務列表。
運行top命令后,AS所在Linux機器的顯示效果如下:

因為應用主要為cc和mysql,所以要重點關注這兩者是否穩定。
主要關注的項是VIRT和RES,如果這兩者一直增加,那很可能程序或其它地方存在內存泄露。
3.2.5其它
在UAC端運行的過程中:
1) 按“+”鍵表示在當前caps的基礎中加1;
2) 按“-”鍵表示在當前caps的基礎中減1;
3) 按“*”鍵表示在當前caps的基礎中+運行起點的caps,例如10caps,按“*”后,變成20,再按“*”變成30.
posted on 2009-09-11 13:45
阿蜜果 閱讀(15248)
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