how to defragment

partition to disabled as described above. Second, clean up the disk and defragment the disk. 1, remove the program software. 2, with the optimization master or Super Rabbit clean up the registry and garbage files. 3, defragment the disk--start--All Programs--attachment--System Tools--Disk Defragmenter--Selected c--analysis--defragmentation. 4. Clear temporary files, start-run-input%temp%-OK. 5, close

frequent installation, removal of software or procedures, resulting in file fragmentation or system garbage, will seriously hinder the speed of the system, especially in accordance with the software uninstall requirements for unloading, especially will cause problems, it is recommended to uninstall software or procedures, must follow the corresponding instructions; 4, regularly defragment the system to improve the speed of the system, the need to re

disk on the right mouse button, select "Properties"; Step two: In the pop-up window, select the Tools tab--> Click on the "Check Disk" window under "Check out"--> pop-up. Click on the "Automatically fix file system error (A)" and "scan and attempt to restore bad sectors (N)" to--> "Start" ( S) "for inspection and repair; Step three: After checking the repair, click "Defragment" under "defragmentation"--> in the pop-up "Disk Defragmenter", first cli

\microsoft\windows\currentversion\policies\network The new DWORD value "Noentirenetwork" in the right window and set its value to "1". Mouse Menu Increase the Defragment disk option for the right key menu of the drive Create a primary key "Defrag" under Hkey_local_machine\software\classes\drive\shell, and in the right window, change the "default" value to: Defragment disk, and in this primary key "NewWin

of programs), and then defragment, after the completion of the reset virtual memory, can make the page file does not contain fragments, read and write faster.　Or use pe/emergency disk to boot into the system, delete the paging file, defragment the disk, restart can be. Take WIN7 as an example, the "Computer" right button, properties, advanced system settings, Performance > Settings ..., Advanced, virtual m

! principle is sufficient + Leave a small amount of allowance. WIN7 system Environment, General 512MB memory, according to the actual use of memory footprint, you can set virtual memory for 512-768MB (memory + virtual memory and generally higher than the normal occupation of 256MB can). 1GB memory, according to the actual use of memory footprint, you can set virtual memory for 128-512MB (memory + virtual memory and generally higher than the normal occupation of 256-512MB can). Memory is 2G and

One of the best ways to improve your computer's performance is to optimize your hard drive. The features included in Windows help you optimize the various types of drives that your computer uses today. No matter what type of drive your computer is using, Windows automatically chooses the optimal way to fit the drive. By default, the optimize drive (formerly known as Disk Defragmenter) runs automatically on a weekly basis. But you can also manually optimize your computer's drive. To manually op

unknown reasons. Therefore, at this time the younger generation size is best set with-XMN. -XX:+USEPARNEWGC: set Young on behalf of the parallel collection. Can be used concurrently with CMS collection. JDK5.0 above, the JVM will set itself according to the system configuration, so it is no longer necessary to set this value. JAVA-XMX3550M-XMS3550M-XMN2G-XSS128K-XX:+USECONCMARKSWEEPGC -xx:cmsfullgcsbeforecompaction=5-xx:+ Usecmscompactatfullcollection -xx:cmsfullgcsbefore

Many of the data blocks under the high watermark (HWL) are data-free, but the full table scans to high watermark data blocks, which means that Oracle does a lot of work! Therefore, Oracle provides shrink space defragmentation capabilities. For the index, you can take the rebuild online to defragment, in general, the object that often DML operations DBA to maintain regularly, while paying attention to update statistics in a timely manner!One: Prepare t

Explanation:Qcache_free_blocks: The number of contiguous memory blocks in the cache. A large number indicates that there may be fragments. FLUSH QUERY Cache will defragment the cache to get a free block.Qcache_free_memory: Free memory in cache.Qcache_hits: Increases every time a query hits in the cacheQcache_inserts: Increases each time you insert a query. The hit count divided by the number of inserts is an out of proportion.Qcache_lowmem_prunes: Th

) Partitions 4 * *;For example, the number of partitions for P_hash is 4;To reduce the number of partitions to 2ALTER TABLE P_hash coalesce PARTITION 2;Coalesce can play the same role for tables that follow Hash,key,linear HASH, or LINEAR KEY partitions. Coalesce can not be used to increase the number of partitions, if you try to do so, the result will appear similar to the following error: Mysql> ALTER TABLE clients coalesce PARTITION 18;Error 1478 (HY000): Cannot move all partitions, use drop

assigned to segments as a whole, but as individual pages. When issuing a query show TABLE STATUS from ... Like ... To inquire about the amount of space left in the tablespace, InnoDB reports the parts that are actually available in all of the free areas (extents) in the table space. InnoDB typically preserves areas for clean-up and other internal purposes; These reserved areas are not included in the remaining free space. When you delete data from a table, InnoDB shrinks the corresponding ind

and basic class hierarchies (such as MFC), it is inevitable to dynamically judge the type of object, that is, the dynamic type of detection. How do you determine the dynamic type of an object? The answer is to use the operators in the built-in RTTI: typeID and dynamic_cast. Let's first design a class hierarchy, assuming we create an abstract base class for a processing file. It declares the following pure virtual functions: open (), close (), read (), and write ():class File { public: virtual

program can be backed up/synchronized to a local or remote server, or written in conjunction with Toast to CD/DVD, is very handy, supports timed or manual backups, and can automatically repair disk permissions before backup. Delocalizer: Many OS X apps come with other country language packs that you'll never use, and use this free tool to find out which language packs you don't want and where to remove them. Desktop Manager: Free software for multiple virtual desktops, small, fast, and easy t