how to improve imac speed

Install APC (alternative PHP Cache) to improve PHP parsing speed This article refers to "high-performance PHP development" to make the next record PHP must perform the 5 steps required, whether from the command line or from a WEB server. The Zend engine must read the file from the file system, scan its dictionaries and expressions, parse the file, create the computer code to be executed (called Opcode), a

Empty IE cache can effectively improve the speed of the computer access to the Web site now IE version of the first check the computer's IE is which version of view IE browser version of the way to open any page click on the top of the help to select the Internet Explorer automatic pop-up window will show the version of IE browser (IE) Empty IE Caching method Please open any one of

How to use XP system disk partition application to improve read and write speed 1. Partition and format the hard disk in one minute Right-click on "My Computer" and select "Manage" command. In the Computer Management window that opens, expand Computer Management → storage → disk management. You can then see the partition of the current hard disk in the right pane. Right-click on unassigned disk space and

How to improve WPS text typesetting speed 1, skilled use of several common shortcut keys Primary: CTRL + N Create a new file Ctrl+o Open File Ctrl+w Close File [F12] Key: Save file Ctrl+b Font Bold Ctrl+u Underline Ctrl+i Font Italic Intermediate: [Ctrl+enter]: inserting page breaks [Ctrl + SHIFT+C]: Copy format [Ctrl + SHIFT+V]: Paste format Ctrl+d the Font window [Ctrl+l]: left-aligned [Ct

How to disable the IPV6 protocol to improve the running speed of computer system The specific steps are as follows: 1, first we enter the computer control Panel, you can click on "Charm Bar" > "Control Panel." 2, in the "Control Panel" window to find and click into the "Network and Sharing Center." 3. Here I see my computer has two types of network connection, WiFi and local conn

How does the Win7 system improve the search speed? 1, in the "taskbar" blank, right-click, in the pop-up menu, select "Properties" open the Taskbar and the ' Start ' Menu Properties window, click "Custom." Start Menu 2. In the Customize Start Menu window, drag the top slider bar until you see the "Search other files and libraries" option and check "Do not search". Custom Start Menu 3, pre

Ie6.0,firefox Gzip, The data is then transferred using gzip compression and, if not supported, sent in a regular manner. Therefore, summed up his advantages and disadvantages, excellent: compressed transmission, the speed generally increased twice times. Missing: CPU usage will improve, but through my point of analysis, gzip only access to a page will be compressed, the next time if the page does not chan

Css,js of the website, xml,html can use gzip compression when transmitting, improve the access speed, The image on the website, video and other multimedia files, because the compression effect is not good, so for the picture does not need to support compression, If you want to optimize, you can set the life cycle of the picture a bit longer, so that the client side to cache In nginx.conf, the gzip configura

Tags: lift efficiency settings httppad use Avoid wherepost default value 1. To optimize the query, avoid full-table scanning as far as possible, and first consider establishing an index on the columns involved in the Where and order by.2. Avoid null-valued fields in the WHERE clause, which will cause the engine to discard full-table scans using the index, such as:Select ID from t where num is nullYou can set the default value of 0 on NUM, make sure that the NUM column in the table does not h

. Bash_profile. In the PostgreSQL installation directory there is a set_env.sh file, the file is set environment variable shell footsteps, you can add the content copy of the footstep to the. Bash_profile, you can also directly added to the. Bash_profile Run set_ env.sh footstep statement:./postgresql installation directory/set_env.sh. A re-login is required after modifying the. Bash_profile to take effect.2. There is no directory permission when you execute the copy commandPostgreSQL installed