初次接觸LTP （Linux Test Project) 被LTP的各種man文件、LTP官網文檔還有網上找的七七八八的文章搞得一頭霧水，怎麼都測試不成功，不知道是我英文太爛沒理解對還是它寫的不清楚。經過反覆摸索終於成功了，現詳述如下，還望各位看客不要嫌我寫得羅嗦，希望對初次安裝使用LTP測試套的人有所幫助。
一、下載LTP測試套
可以從http://sourceforge.net/projects/ltp/files/LTP Source/下載最新的LTP壓縮包，如ltp-full-20110228.bz2
下載後建議存放到/home目錄下，不要放在/root目錄下，因爲一些測試需要非root用戶來完成。
解壓、編譯、安裝：
1、tar jvxf ltp-full-20110228.bz2
2、cd ltp-full-20110228.bz2
3、./configure (此步可能不成功，則先執行make autotools,然後再./configure)
4、make
5、make install
注意：ltp 的默認安裝路徑是/opt/ltp，所以接下來的執行測試步驟都需要在/opt/ltp目錄下完成（這個一定要特別注意，我當時就誤到這了，在/home目錄下折騰半天總是測試報錯
FATAL: LTP not installed correctly
INFO: Follow directions in INSTALL!
原來不是安裝錯誤，是進錯文件夾了）
二、執行測試
當前有三個腳本可用於執行LTP測試套件，分別是runltp、networktests.sh以及diskio.sh。最常用的就是runltp腳本，它可用於執行LTP中絕大部分的測試（default set of tests，但是不包括networktests及diskio測試。
執行./runltp的一些選項參數如下（借用官網）：
-a EMAIL_TO EMAIL all your Reports to this E-mail Address
-c NUM_PROCS Run LTP under additional background CPU load
[NUM_PROCS = no. of processes creating the CPU Load by spinning over sqrt()
(Defaults to 1 when value)]
-C FAILCMDFILE Command file with all failed test cases.
-d TMPDIR Directory where temporary files will be created.
-D NUM_PROCS,NUM_FILES,NUM_BYTES,CLEAN_FLAG
Run LTP under additional background Load on Secondary Storage (Seperate by comma)
[NUM_PROCS = no. of processes creating Storage Load by spinning over write()]
[NUM_FILES = Write() to these many files (Defaults to 1 when value 0 or undefined)]
[NUM_BYTES = write these many bytes (defaults to 1GB, when value 0 or undefined)]
[CLEAN_FLAG = unlink file to which random data written, when value 1]
-e Prints the date of the current LTP release
-f CMDFILES Execute user defined list of testcases (separate with ',')
-g HTMLFILE Create an additional HTML output format
-h Help. Prints all available options.
-i NUM_PROCS Run LTP under additional background Load on IO Bus
[NUM_PROCS = no. of processes creating IO Bus Load by spinning over sync()]
-l LOGFILE Log results of test in a logfile.
-m NUM_PROCS,CHUNKS,BYTES,HANGUP_FLAG
Run LTP under additional background Load on Main memory (Seperate by comma)
[NUM_PROCS = no. of processes creating main Memory Load by spinning over malloc()]
[CHUNKS = malloc these many chunks (default is 1 when value 0 or undefined)]
[BYTES = malloc CHUNKS of BYTES bytes (default is 256MB when value 0 or undefined) ]
[HANGUP_FLAG = hang in a sleep loop after memory allocated, when value 1]
-N Run all the networking tests.
-n Run LTP with network traffic in background.
-o OUTPUTFILE Redirect test output to a file.
-p Human readable format logfiles.
-q Print less verbose output to screen.
-r LTPROOT Fully qualified path where testsuite is installed.
-s PATTERN Only run test cases which match PATTERN.
-t DURATION Execute the testsuite for given duration. Examples:
-t 60s = 60 seconds
-t 45m = 45 minutes
-t 24h = 24 hours
-t 2d = 2 days
-T REPETITION Execute the testsuite for REPETITION no. of times
-v Print more verbose output to screen.
-w CMDFILEADDR Uses wget to get the user's list of testcases.
-x INSTANCES Run multiple instances of this testsuite.
執行LTP測試的方式主要有兩種，一種是執行全部default set of tests, 另一種是執行user defined set of tests。
1、執行default set of tests
cd /opt/ltp (你所安裝的ltp的存放目錄，默認是/opt/ltp）
./runltp -p -l result.log
2、執行user defined set of tests
如果你只是想執行LTP中的一部分test cases，你可以按照如下步驟操作：
cd /opt/ltp/runtest
vim your_command_file (創建命令文件，當然也可以使用runtest目錄中現有的命令文件）
命令文件由兩部分組成，一是test case標籤“tag",另一個是你希望執行的具體的"test case"腳本名以及一些參數。比如：
#Tag Test case
#---------------------------------------
mtest01 mtest01 -p 10
cgroup_fj run_cgroup_test_fj.sh
controllers test_controllers.sh
cpuctl_stress run_cpuctl_stress_test.sh 9
編輯結束後保存你的命令文件，執行
cd .. （退出runtest目錄，回到/opt/ltp目錄）
./runltp -p -l result.02.log -f your_command_file
大功告成，此時測試如果還會報錯，那就可能是你的命令文件中參數設置不正確，可根據error提示去檢查命令文件及相應的腳本文件，一些腳本文件可能需要特定的參數才能正確執行。