use chromebook as second monitor

In multithreading, to maintain data consistency, you must lock the data or function that accesses the data. This is common in the database, but in Program Because most of them are single-threaded programs, there is no need to lock, but in multithreading, in order to maintain data synchronization, it is necessary to lock, fortunately, the framework already provides three locking mechanisms, namely the monitor class, the lock keyword, And the mutex cla

entered RUNNING state, process have stayed up for > than 3 seconds (startsecs)Another way of configuring files (this approach is good for multiple services):1. Modify the configuration file vim/etc/supervisord.conf[include]; files = Relative/directory/*.iniModified to:[include]; files = Relative/directory/*.iniFiles =/etc/supervisord.conf.d/*.conf2. Create a managed service configuration filemkdir/etc/supervisord.conf.d/cd/etc/supervisord.conf.d/Vim apache.conf[Program:apache]Command=/usr/loc

Use memcache.php to monitor memcachedMemcache.php inside the memcahce-2.2.7 bagMemcahce-2.2.7:http://pecl.php.net/get/memcache-2.2.7.tgzPlace the memcache.php within the memcahce-2.2.7 package in the Apache Htdocs directory:[email protected] memcache-2.2.7]# CP memcache.php/home/webserver/httpd/htdocs/Modify memcache.php Content:[Email protected] htdocs]# vim memcache.php....Define (' Admin_username ', ' AD

1. In Http://ehcache.org/documentation/monitor.html#Installation_And_ Configuration Download ehcache-monitor-kit-1.0.0-distribution.tar.gz Package 2. Unzip to directory, copy ehcache-monitor-kit-1.0.0\lib\ Ehcache-probe-1.0.0.jar package to the Web-inf/lib directory of application 3. In the Ehcache tag of the following configuration copy of the Ehcache.xml file, note: The configuration described in the abov

Use Raw Socket programming in C # To monitor network packets When talking about socket programming, you may think of QQ and IE. That's right. Many other network tools, such as P2P and NetMeeting, are implemented at the application layer using socket. Socket is a network programming interface that is implemented on the network application layer. Windows So

the-B Option to specify the multi-point Transfer Group IP address to start multiple iPerf servers. Then open your iPerf client and connect to the previously started multicast group iPerf server. Use the test tool iPerf to monitor wireless network performance: Graphical Test Result As described in this article, the iPerf program can be run in the command line, or in a Java implementation front-end tool nam

monitored folder A is deleted) In_modify file is modified In_move_self the file or directory being monitored for movement In_moved_from files are moved out of the monitored directory In_moved_to file moved into the monitored directory In_open file is open The set of the above flag In_all_events the collection of all flag above In_move in_moved_to| In_moved_from In_close in_close_write| In_close_nowrite A flag that is not commonly used In_dont_follow not FOLLOW symbolic link (since 2.6.15) In_ex

Use logwatch to monitor log files in Linux Linux operating systems and many applications create special files to record their running events. These files are often called "logs ". These system logs or specific application log files are essential tools for understanding the behavior of operating systems or third-party applications or troubleshooting. However, log files are not as readable as they are "clear"

Use Observium to monitor your network and serversIntroduction Have you ever encountered problems when monitoring your servers, switches, or devices? Observium can meet your needs. This is a free monitoring system that can help you remotely monitor your servers. It is a network monitoring platform based on automatic SNMP detection compiled by PHP. It supports a wi

computer is turned on and networked, the system will automatically execute, and then send the results to your mailboxA: This happens when we open the browser while visiting the history, there are two ways to solve this problem:Path problem:A: Everyone in the realization of the time, we should pay attention to the road to their own computer, and the mailbox related information to be changed to their own.Summarize:1. Use Python to connect to the SQLite

computer monitor to achieve the best use of the method. 1. Display refresh rate settings: The refresh rate is the field frequency, refers to the number of repeated painting per second, to Hz as the unit. The higher the refresh rate, the more stable the screen display, the smaller the flicker. Most people's eyes for more than 75hz refresh rate basic feel not flashing, 85hz above is completely no flicker, so

Monitor and manage the use of Oracle UNDO tablespace The monitoring and management of Oracle Database UNDO tablespaces is one of our most important tasks in daily life. The UNDO tablespaces are usually managed automatically by Oracle (determined by the undo_management initialization parameter ); the UNDO tablespace is the pre-image data used to store DML operations. It is an important component of the insta

upUse Process Explorer to view the command line again, with no characters regsvrNicktyrer shared his code with this method, implementing the PowerShell command in the DLL, with the following address:https://gist.github.com/nicktyrer/6ef02ce3fd623483137b45f65017352b Before compiling the project, the following settings are required:1. 设置编译平台为x86或者x64 2. 安装UnmanagedExports和System.Management.Automation在Visual Studio控制面板选择TOOLS-Library Package Manager-Package Manager Console，输入: Install-Package

Ldirectord function description: If ipvsadm is directly defined as a resource proxy in highly available services and ipvsadm is used to generate ipvs rules, the effective LVS cannot implement the health monitoring function on the backend RealServer, the ldirectord in heartbeat can monitor the health status of the backend RealServer. At the same time, it can use the ipvs function in the kernel to start the L

When using thunder, even if nothing is downloaded, the upload is also turned off, and the network speed is still poor. The task manager is running at full load. Why? This article describes how I found out the clues of Thunder's "theft" activity, and estimated the losses and potential risks to our users. Finally, this article puts forward some effective countermeasures. The content in this article is also of great value to those who use other software

event is clicked or double-click or long press and so on, rather than face these large and complex raw information, so, Android will be able to convert these raw data into a certain conversion for ease of use, if you need to do a driver development involving these raw data operations can also be directly accessible to its use.It can be seen that the input subsystem in Linux captures the information of imported devices is the ancestor of the source of

A system that, after a long period of operation, maintenance, and versioning, may produce a large number of indexes, even though the index occupies far more space than the data. Many indexes are useful for systems in the initial design. However, after the system upgrade, data table structure adjustment, application changes, many indexes are gradually not used, become a garbage index. These indexes occupy a large amount of data space, increase the maintenance of the system, and even reduce system

This document describes how to use shell on a unix host to monitor host survival and port survival. #! /Bin/bash # Authorbyfengzhanhai # Itusedbymonwebserviceandnetandhostliving # Itwascreatedon2012-8-9 # webdate = 'date-d quot; today qu this article mainly describes how to use shell on a unix host to monitor host su

Article Title: Use Inotify to monitor Linux File System events. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source. Inotify is a file system event monitoring mechanism and is planned to be included in the forthcoming Linux kernel as an effective replacement for dnotify. Dnot

[Reprinted] Use signals to monitor the changes in the Django model object field value, django Field Reprinted Source: http://blog.csdn.net/pushiqiang/article/details/74949465 The function of the Django signal (Signals) is similar to the action of WordPress. It is used to add a global event broadcast (dispatch) and receive (receive) mechanism for the project. Among them, the flexible