You can view the contents of the%mem directly after you use the top command. You can choose to view by process or by user, if you want to see the process memory usage of the Oracle user, you can use the following command:(1) TopThe top command is a
First, the basic conceptBig data volume, to do MySQL, the following concepts need to agree first1) Library, no more said, is a vault2) Shard (sharding), split horizontally, to resolve extensibility issues, split table by day3) Replication
First: DriveIf ASP. NET wants to use a link class that mongodb,.net does not own. Third-party or official link classes.Of course there are many kinds of drivers, and I will not introduce them.Today I'll introduce a driver-----MongoDB that I use more
First, the default permissionsEach terminal has a Umask property that is used to determine the default permissions of the new file or directory "Mask" (mask has the meaning of "mask", As for u, which is said later).Linux generally has a default
Recently in learning Linux from 0, it took 10 days to get basic commands and a realistic use of operational learning points fur. Many Linux commands are summarized here for reviewDirectory structure:/: root directory, usually under the sub-directory,
20140825. Study NotesOpen new Terminal ctrl+shift+nClose Terminal Alt+f4Expand Terminal ctrl+shift+ "+"Reduce the terminal Ctrl + "-"Open a new Terminal tab ctrl+shift+tClose the Terminal tab ctrl+shift+wToggle between labels ALT + label
creating, modifying, and deleting user accounts under the Linux system character interface mainly uses the 3 commands of Useradd,usermod and Userdel.I. Create a user accountCreate a user account is to create a new account in the system, and then
Bidirectional data binding refers to the ability of a binding object property to change to the user interface, and vice versa. To put it another way, if we have a user object and a Name property, once we assign a new value to User.Name, the new name
cookie|cookies| Collection
Cookies have a much more complex value than other collections of ASP (such as form and ServerVariables). A cookie is a small piece of text that is stored on the client system by the browser and is sent with each request
Server for NFS ConfigurationOne, NFS server-side configuration, that is, shared publishers(i) services to be started and software to be installed1, NFS server must start two daemons services: RPC.NFSD and Rpc.mountdRPC.NFSD: Used to manage whether
What is NTFS?
What is NTFS
NTFS is the filesystem used by Windows NT, Windows xp-based, and Windows XP.
NTFS is the file system used by Windows NT, Windows 2000, and Windows XP
Why didn ' t Red Hat enable NTFS support in their kernels?
Why isn't a
Ubuntu Common Terminal commands
NO Classification PS1 command name usage and parameter function annotation
1 file Management # ls ls-a lists all files in the current directory, including hidden files with. headers
File Management # ls ls-l or LL
Hibernate first-level cache test Analysis Hibernate cache is the session cache, this session non-HTTP session technology, can be understood as JDBC Connection, connection session, The session cache is a piece of memory space used to store mutually
1, Nginx and memcached integration#安装memcached支持的事务库libeventwget https://github.com/libevent/libevent/releases/download/release-2.0.22-stable/ Libevent-2.0.22-stable.tar.gztar zxf libevent-2.0.22-stable.tar.gz CD
User identity and file permissionsTo differentiate by UID:Administrator UID is 0: Administrator user of the system.System User UID is 1~999:linux system in order to avoid the vulnerability of a service program by hackers to the entire server, the
Golang Database Operations Golang Database MySQL The Golang Support DB operation is located under the database package and supports basic CRUD operations, transactions, and prepared Statement, in this case, MySQL. MySQL driver installationBefore
During system maintenance, it may be necessary to review the CPU usage at any time, and to analyze the system condition according to the corresponding information. In CentOS, you can view CPU usage by using the top command. After running the top
During system maintenance, it may be necessary to review the CPU usage at any time, and to analyze the system condition according to the corresponding information. In CentOS, you can view CPU usage by using the top command. After running the top
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