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NAME
ab - Apache HTTP 伺服器性能測試工具
` SYNOPSIS
ab [ -A auth-username:password ] [ -c concurrency ] [ -C cookie-
name=value ] [ -d ] [ -e csv-file ] [ -g gnuplot-file ] [ -h ] [ -H
custom-header ] [ -i ] [ -k ] [ -n requests ] [ -p POST-file ] [ -P
proxy-auth-username:password ] [ -q ] [ -s ] [ -S ] [ -t timelimit ] [
-T content-type ] [ -v verbosity] [ -V ] [ -w ] [ -x <table>-attributes
] [ -X proxy[:port] ] [ -y <tr>-attributes ] [ -z <td>-attributes ]
[http://]hostname[:port]/path
yz SUMMARY
ab 是一荋試你Apache http伺服器的工具，你可以通過這茪u具 指定一-
茬璁鴟伅﹞漲Vapache發出的請求數量來看看你的Apache和機 器配合的性能如何
OPTIONS
-A auth-username:password
支持基本的驗証証書,使用者名和密碼之間使用"冒號" :
分隔開,ab將以明文方式傳送過去.不管伺服器是不是需n
,也就是說你的伺服器需n支持401認証.
-c concurrency
同時向伺服器端發送的請求數目，預設狀態下是一次 只執行一-
耹ttp請求.
-C cookie-name=value
Add a Cookie: line to the request. The argument is typically in
the form of a name=value pair. This field is repeatable.
-d Do not display the "percentage served within XX [ms] table".
(legacy support).
-e csv-file
Write a Comma separated value (CSV) file which contains for each
percentage (from 1% to 100%) the time (in milli seconds) it took
to serve that percentage of the requests. This is usually more
useful than the 'gnuplot' file; as the results are already
'binned'.
-g gnuplot-file
Write all measured values out as a 'gnuplot' or TSV (Tab
separate values) file. This file can easily be imported into
packages like Gnuplot, IDL, Mathematica, Igor or even Excell.
The labels are on the first line of the file.
-h 顯示使用說明
-H custom-header
向請求包追加附加的標題字串.此參數應該是有效的標題 行(header
line)形式,通常使用冒號":"來分隔有效配對 (valid pair)例如
'Accept-Encoding: zip/zop;8 bit';
-i 使用一 http 頭(HEAD) 來替換 GET方法.不可以摻入POST 方法
-k 允逍 KeepAlive ；也就是說執行多蚑虼D在一 http
會話當中，預設是不允釭漱]就是no KeepAlive啦;)
-n requests
執行一次測試會話的時啀珛o出的請求數目,預設是執行一茬璊@的請求
當然了這樣的測試結果也就沒什麼意義了
-p POST-file
測試程式也就是ab,將向Apache server發送帶有HTTP POST 的請求.
-P proxy-auth-username:password
當需n通過代理測試一台HTTP 伺服器的時啈荍A的代理 又需-
n使用者名密碼驗証,這時你可以使用這蚇龠,同樣
使用者名與密碼之間使用冒號":"分隔開,ab將之以明文的方式
發送出去,當然,前提是你的代理是處於407認証狀態的
-q When processing more than 150 requests, ab outputs a progress
count on stderr every 10% or 100 requests or so. The -q flag
will suppress these messages.
-s When compiled in (ab -h will show you) use the SSL protected
https rather than the http protocol. This feature is
experimental and very rudimentary. You probably do not want to
use it.
-S Do not display the median and standard deviation values, nor
display the warning/error messages when the average and median
are more than one or two times the standard deviation apart. And
default to the min/avg/max values. (legacy support).
-t timelimit
設置測試的時間的長短，使用這蚇龠琦b將自動設置
測試請求會話數目為50000，然後以你設置的時間為
固定周期.預設狀態下是沒有時的，也就是直到完成
你所設置的請求數目為止.
-T content-type
內容類型標頭,使用在POST數據的時.
-v verbosity
設置冗餘級別,4級列印出每蚑虼D標頭的詳細信息,
3級列印出回應代碼(例如,404,200),2級列印出警告 信息和指示消息
-V 顯示版本號並且退出
-w 列印輸出結果到HTML表中. 預設的表是兩列n行白底黑框
-x <table>-attributes
使用字串來描z表的屬性,該屬性字串應該插入到<table o >
-X proxy[:port]
Use a proxy server for the requests.
-y <tr>-attributes
用於生成html表格每行的屬性名 (<tr>)
-z <td>-attributes
用於生成html表格每列的屬性名 (<td>)
BUGS
There are various statically declared buffers of fixed length. Combined
with the lazy parsing of the command line arguments, the response
headers from the server and other external inputs, this might bite you.
It does not implement HTTP/1.x fully; only accepts some 'expected'
forms of responses. The rather heavy use of strstr(3) shows up top in
profile, which might indicate a performance problem; i.e., you would
measure the ab performance rather than the server's.
SEE ALSO
httpd(8)
[]
trcbilg <email>
[]
2003.11.22
mlinuxan:
http://cmpp.linuxforum.net