Jstack can navigate to the thread stack, and depending on the stack information we can navigate to the specific code, so it is used very much in JVM performance tuning. Let's take a look at the most CPU-consuming Java threads in a Java process and locate the stack information, with the commands PS, top, printf, Jstack, grep.The first step is to find out the Java process ID, the Java application name on the server is mrf-center:Root@ubuntu:/# Ps-ef | g
Linux file Lookup mainly includes: Locate and find1, locateSimple to use, based on database lookup, not real-time, usage:Locate FILENAMEManually updating the database (time may be longer)UpdateDB2. FindReal-time, accurate, powerful, usage:Find Path Lookup Standard post-discovery action(1) Path:. Or./both represent the current directory(2) Search criteria:' FILENAME ' Exact file name matching (wildcard *?) is supported. []) ' FILENAME ' file n
CauseIn general, if the test reports a problem during the development process, I usually do this:1. Retry the test operation in your own development environment to see if you can reproduce the problem. No. 22. Change the database connection pool to the address of the test library and retry the test operation in your own development environment to see if you can reproduce the problem. No. 33. Go to the test environment to view the logs. Analyze the problem.Quick positioning issuesGo to test the e
Linux Find and locate file lookup commands in the detailedFile Lookup command:Locate Command Features1. Non-real-time, fuzzy matching, the search is based on the system-wide file database;2.updatedb, manually update the build file database, default 4:02 A.M. update database3. Fast speedFind command features:1. Real-time2. Precise3. Support for many search criteria4. Search all files in the specified directory to complete the lookup, but the speed is s
Mainly update the source of the problem, I install Ibus-pinyin always prompt "Unable to locate the package" Finally I used the source of 163: # 163 source Deb http: // mirrors.163.com/debian wheezy main non-free contrib deb-src Http:// mirrors.163.com/debian wheezy main Non-free contrib deb http:// Mirrors.163.com/debian wheezy-proposed-updates main non-free contrib deb-src http: // mirrors.163.com/debian wheezy-proposed-updates main non-free
File Search command: LocateCommand format: Locate [file name]#在后台数据库中按文件名称搜索, the search is fast.Database address:/var/lib/mlocateIt is not updated immediately after the new file is created, and the Mlocate database is updated daily and can be forced to update.Force Update Command: UpdateDBLocate Search RulesLocate configuration file in:/etc/updatedb.conf-prune_bind_mounts = ' yes '#开始了搜索限制-Prune =#搜索时, non-searchable file system-Prunemaes =#搜索时, do n
tecmint.com.ssh > 115.113.134.3.static-mumbai.vsnl.net.in.28472:p 116:232 ($) Ack 1 win 964822:08:59.617916 IP 115.113.134.3.static-mumbai.vsnl.net.in.28472 > Tecmint.com.ssh:. ACK-$ win 643475.netstat-Network Status statisticsNetstat is a command-line tool for monitoring packet and network interface statistics for incoming and outgoing networks. It is a very useful tool that system administrators can use to monitor network performance, locate and tr
In peacetime we read articles, often use bookmarks to mark the reading record, and in the Word2007 document also added to the function of the bookmark, do not know friends, now small make up to tell you how to use the bookmark Word2007, take a look at it.
Step 1th, open the Word2007 document window where the bookmark is added, and switch to the Insert Ribbon. Click the Bookmark button in the links group, as shown in the figure.
Click the Bookmark button
Step 2nd, open the Bookmark dial
Command
Find objects
Find speed
Note
which
Executable file
Search for executable files based on the contents of the PATH variable
Different path configurations can result in dissimilar results
Whereis
Search for Program name
Based on the database to find, fast
Only binary files, source code, man manual
Locate
File or directory
Based on the database to f
own grab plug-in, you can also use other capture software, such as Fiddler, Charles, HttpWatch, Wireshark and so on. 2. Back-end bugs, how to pinpoint where the problem is, how to accurately describe the bug? (1) Check the newspaper error log to check the error log, through the log analysis, need to have some experience, and a certain code base, in order to better locate the problem. (2) ViewDatabaseData to understand the function of the data table s
The users of the drop-by-drop software will be able to share a tutorial on how to resolve the problem in a detailed way.
Method Sharing:
In the use of drip travel, you may be in the use of the process will be unable to locate the situation, resulting in you can not successfully use the drop-off app, you will not be able to enjoy the discount of 10 yuan fare concessions.
This situation allows you to turn on the GPS in your system settin
Copy Code code as follows:
If you want to find the span with icon this class (operate on it, change the News_list_icon to News_list_icon_hover), in addition to using the original code
Copy Code code as follows:
$ ("#newslist li"). Hover (function () {
$ ("#newslist Li"). Find (". Icon"). AddClass ("News_list_icon_hover")},function () {$ (' #newslist Li '). Find (". Icon"). Removeclass ("News_list_icon_hover")});
You can also use the method of parent query
I recently installed WIN7, after the disk, always prompts "Setup can not locate existing partitions, and can not create new system partitions," thought a lot of ways, always can not be solved, and then after many search, in the last night finally put the system installed.
I use a U disk installation system, because my CD-ROM drive is not good, sometimes can not read out, and sometimes read out, so just think of a U disk to install the system. Of cour
Tags: begin can/usr MPI plugin install MySQL boot dump based serviceWhen installing MySQL via RPM package CentOS7 "Can ' t locate data/dumper.pm in @INC (@INC contains:/usr/local/lib64/perl5/usr/local/share/ Perl5/usr/lib64/perl5/vendor_perl/usr/share/perl5/vendor_perl/usr/lib64/perl5/usr/share/perl5.) at/usr/bin/mysql_install_db Line 42. BEGIN failed--compilation aborted at/usr/bin/mysql_install_db line 42. ", feel the moment kind of don't know what
Sqlite3RELOC_LIBRARY[1307]: 887 cannot locate ' sqlite3_enable_load_extension ' ...Cannot LINK executableGood trouble on the Internet.Download file download one right here for ICS or before or for Jelly beans and later here1. Download sqlite3, rename. Put it in your phone /system/xbin/ directory and replace it with the original.2. Modify the permissions rwxr-x--x, the same directory as other files can beSqlite3 reloc_library[1307]: 887 cannot
WebDriver API: how to locate the elements on the Web page, webdriverapi
Through the front-end tool, we can see a webpage. The elements on the page are composed of a line of code, which are organized hierarchically. Each element has a differentTag NameAndAttribute Value. WebDriver uses this information to find different elements.WebDriver provides eight element locating methods:
(1) id(2) name(3) class name(4) tag name(5) link text(6) part of link tex
permissionsChattr +i Test Sets the hidden properties of the test file (cannot be deleted, renamed, written to add data, only the root user can set)Chattr +a Test Sets the hidden properties of the test file (only data can be added, cannot be deleted, modified, only the root user can set)Chattr-a test cancels the hidden properties of the test fileLSATTR test show test File hidden propertiesFile Test View Files type5. Command-and-file queriesWhich ifconfig find the full file name of the Ifconfig c
Just do Thisi had the same probleminchMonodevalop, but the URLinchIt cannot be changed. So I tried a plugin of Chrome:https://Chrome.google.com/webstore/detail/redirector/pajiegeliagebegjdhebejdlknciafenWe canSetThe transforminchOptions of Thisplugin. From:^https://unity3d.com/cn/support/documentation/scriptreference/(. *)To:https://docs.unity3d.com/scriptreference/$1Then we can use Ctrl+'To search in the documentation.MonoDevelop Ctrl + ' cannot locate
original link: http://www.cnblogs.com/yinxiangpei/articles/4211743.html @1. generally the first DF to look at, and then CD to the full disk, the execution: Du-shx * This can list all the folder size (x parameter will remove the mount directory, such as samba hanging up the disk, which will interfere with the statistics) in if there are subfolders , continue with the implementation of DU-SHX * first-level @2. Special case (the file is deleted, but it is occupied by a process, and is still being w
Gmpy2 need gmp.h mpfr.h mpc.h installation command: sudo apt-get install livmpfr-dev libmpc-devAfter successful, enter the installation command:pip install gmpy2If you encounter a package that cannot be located:Then enter the command: sudo gedit/etc/apt/sources.listPop up the file and add it at the end of the file:Deb http://Mirrors.ustc.edu.cn/kali kali-rolling main Non-free contribThen sudo apt-get update canInstallation of Python's Gmpy2 library under Linux and solutions to the inability to
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