show memory usage

A. show tables or show tables from database_name; -- display the names of all tables in the current databaseB. show databases; -- display the names of all databases in mysqlC. show columns from table_name from database_name; or show columns from database_name.table_name; --

, 321252k free, 213488k buffersswap:2650684k Total, 80k used, 2650604k free, 3006404k cachedThe results show that 3.8G used is used, with a occupancy rate of 90%. Look at the results of free you can also compare:$ free-mTotal used free shared buffers Cachedmem:4049 3784 265 0 208 2939-/+ buffers/cache:636 3413swap:2588 0 2588Although Mem shows a used of around 3.7G, the results of the-/+ Buffers/cache minus buffers and cache can be seen, the current p

the usage of Swap partition (Swap. In general, Swap partitions (Swap) are frequently used and are considered to be caused by insufficient physical memory. Part 2-Internal Command Prompt bar in the middle section: You can use the top internal command to control the display mode of processes during top running. The internal commands are as follows: s-change the screen update frequency l-close or enable the f

Some time ago, someone asked a question on csdn : How does a VB program transfer physical memory usage to virtual memory? [VBCommunity] Other related posts How to make the program occupy virtual memory instead of the actual memory [VC Community] Compiled by VBProgramHow

MySQL Show statements are commonly used. The following describes the usage of MySQL Show statements. If you are interested in MySQL Show statements, take a look. showdatabases; showtablesfromdb_name; showcolumnsfromtable_namefromdb_name; showindexfromtalbe_name[fromdb_name]; showstatus;

usage size h-show help n-set the number of processes displayed in the process List q-exit tops-change screen update cycle part 3-process in the bottom list bar: the process list differentiated by PID is regularly updated based on the set screen update time. You can use the top internal command to control the display mode. In general, we maintain the server through remote monitoring, so that the local termi

The usage of the Show. And ShowDialog methods in C # is different, Show () is a non-modal form.ShowDialog () is a mode form. If Show is used at this time, it will happen that when the subform is opened and the main form is displayed again, the ShowDialog () when the child form is closed, the main form is displayed.We

Examples of show (), hide (), and toggle () usage in jquery This article mainly introduces the usage of show (), hide (), and toggle () in jquery, and analyzes show (), hide (), and toggle () as examples () show, hide, switch, and

1. Memory Optimization principle To optimize application memory use, developers should first know what the most memory of the application, the answer is the texture. Textures can occupy almost 90% of the applied memory. So minimize the application of the texture memory

= "memory used:" + compare. intvalue () + "% ";Return STR;} // Get the file system usagePublic static list // Operating SystemList For (char c = 'a'; C String dirname = C + ":/";File win = new file (dirname );If (win. exists ()){Long Total = (long) win. gettotalspace ();Long free = (long) win. getfreespace ();Double compare = (double) (1-free * 1.0/total) * 100;String STR = C + ": the disk has been used" + compare. intvalue () + "% ";List. Add (STR )

The show in jquery and the Hide method usage are analyzed in this example. Share to everyone for your reference, specific as follows: More interested readers of jquery-related content can view the site topics: "jquery window Operation tips Summary", "jquery drag and drop effects and tips summary", "jquery common Plug-ins and Usage summary", "jquery Ajax