the OS point of view, because for os,buffers/cached is used, so his available memory is 2098428KB, the used memory is 30841684KB, which includes, the kernel (OS) uses + Application (X, oracle,etc) used by +buffers+cached.
The third line refers to the application from the point of view of the application, buffers/cached is equal to available, because buffer/cached is to improve the performance of file read,
of view, the computer has a total of:
24677460KB (the default is KB for free) physical memory, or fo[2][1];
23276064KB (i.e. fo[2][2]) is used in these physical memory;
Also used 1401396KB (i.e. fo[2][3]) is available;
Here we get the first equation:
FO[2][1] = fo[2][2] + fo[2][3]
FO[2][4] indicates that the memory that is shared by several processes is now deprecated, a
usage in bytes-k View memory usage in kilobytes-O does not display cache throttling columns-t display memory sum column-V Display version information-S The difference between buffers and cachedFor an application, buffers/cached is equal to the availableBecause buffer/cached is designed to improve the performance of file reads,The buffer/cached is quickly recycled when the application needs to use memory.So, from the application's point of
How to view the resources used by the Linux system (top, free, and uptime)
The items in the first line are the current time, system startup time, number of users logged on to the current system, and average load. However, it consumes a lot of system resources.
Top
1. RoleThe top command is used to displayProgramProcess. The permission is granted to all users.
2. FormatTop [-] [d delay] [Q] [C] [
resultsFormat:du [-abckms] [directory name]Function: View file used capacity-a lists all files and directories, the default value is the value of the list directoryThe values listed in-B are output-C Final TotalThe value listed by-K is output in kilobytes-m lists the values in MB output-S only lists the last total valueGets the partition information for all the hard disks in the machine:sudo fdisk-lThen sw
The free command shows how much memory is being used in the current system in the following format: Free[-m/-g]Displays the current memory usage in units of M[Email protected]/]# free-m Total amount of memory consumed the amount of memory that the process shares in the memory volume of the disk cache CacheWho commands to
How can I view the physical files corresponding to the db2 tablespace ?, View db2How can I view the physical files corresponding to the db2 tablespace? Refer to the following:
[db2inst1@db MYDB]$ db2 connect to mydb Database Connection Information Database server =
Comparison of files in Linux and comparison of free and open source software
The file comparison tool is used to compare the content of files on a computer and find the similarities and differences between them. The comparison result is usually called diff.
Diff is also the name of a famous file comparison program based on the console that can output the differen
first). Therefore, they are very important software development tools. They can help developers to process files and keep their files spinning. These comparison tools can not only be used to display differences in source code files, they also apply to many kinds of text files. Visual features make file comparisons eas
Free uploading of multi-user files without databases to the voting system (1 ). This is an integrated Upload and voting system developed recently. it consists of four php files and several record files. this is the first view. php is mainly responsible for displaying the fil
SummaryThis article briefly describes how to read and display models in the 3DS file in OpenGL, and focuses on the mathematical basics and programming methods for freely rotating models by dragging the mouse.
KeywordsOpenGL 3DS file format VC ++ free rotation
Many papers and books have mentioned how to read and display models in 3DS files in OpenGL. But in many cases, it is not enough to read and display
I'll give you two ways to introduce it to everyone.1 If you have enough space after using sudo apt-get clean, that's great.2 Not enough, still hint space is insufficient. At this point, it's time to uninstall the expired kernel in boot.Here are the steps:1 Viewing the files in boot2 View the kernel version we are using3 uninstalling the kernel with a command I want to uninstall 4.2.0-16 This version of the
Pre-launch environment testers found that the disk space is covered, so use df-h and Du-sh * found large files, and delete.But did not free up space, df-h or display occupancy rate is 100%, at this time du-sh * Display occupies only 7G, and Df-h looked at the content does not match.In Linux or Unix systems, deleting files via RM or the File Manager removes the li
To view disk space usage:Df-hView the space occupied by the first level directory under the root directory:Du-h--max-depth=1/Find files larger than 2000M in the root directory:Find/-size +2000mFind files that have been deleted, but are still occupied by the process:Lsof |grep deletedReview the process information based on the process ID found in the previous step
Oracle Database Diagnostic File (log) view Diagnostic File (Diagnostic File) 1: Role of the Diagnostic File Diagnostic files: contains information about Major Events encountered in the background. It is used for parsing issues and is used for daily log file management. 2: diagnostic file logs are classified into two categories: 1: alterSID. log ----- background trace fi
system.+git is distributed a version control system.Git is free software.\ No newline at end of file[Email protected] Mingw64/e/learngit (Master)$See what's new5. Git add, git commit commit changesgit add readme.txtgit status[Email protected] Mingw64/e/learngit (Master)$ git statusOn Branch MasterChanges to be committed:(use "Git reset HEAD Modified:readme.txt[Email protected] Mingw64/e/learngit (Master)Git commit-m "Add distributed"[Email protected]
■ How to view various database data files?
1) view data filesSQL> select file_name, Bytes/(1024*1024) M0 from dba_data_files;2) view the control fileSQL> select name, status from V $ controlfile;3) view log filesSQL> select group #, Member, status from V $ logfile;
recently has been learning Qt, using QT to write a program, but do not know how to publish, online is to say in Windows How to publish Qt application, but under Windows QT application depends on the library files and Linux under the name of different. So, I think of Linux there is no such a command, to find an executable file runtime depends on the library file, Baidu, there is really a LDD command. the role of LDD is to print a shared library file th
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Eclipse installation Jadclipse plugin to view class files directlyWhen we develop the project in Eclipse, we introduce many jar packages, sometimes we want to look at the code of the class in the jar package, find the source source code package that need to introduce the jar package to view, then teach you a way to view
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