Excerpt from: http://www.centoscn.com/CentosBug/osbug/2014/0614/3138.htmlI used CentOS, but found that the speed is almost impossible to access the Internet, even Baidu can not open, but win is fast. Later think of accidentally remember once saw a paragraph, said to close IPv6, test come, really effective, close to IPv6 open speed fast. Close method:1 vi/etc/modprobe.d/dist.conf2#结尾添加 3 alias net-pf- of
How to solve 360 speed browser CPU utilization high computer card slow
This situation is not because the computer configuration is low, but because the 360 speed browser to play video, or enter the Web site with Flash content, need to use flash playback plug-ins. There are two problems that can lead to extremely high CPU utilization:
1. The browser does not cal
This article mainly introduces how to install sendmail in Ubuntu, and the reasons for the slow sending of php mail after sendmail is enabled and the solution. For more information, see. If you need to use the mail () function of php to send emails, you need to install the sendmail component on the server. this is also introduced in the mail () function section of the php Manual. Then
Install the sendmail command in Ubuntu:
The code is as follows:
S
LINUXSATA hard drive becomes IDE, and the speed is very slow-Linux general technology-Linux technology and application information. The following is a detailed description. The system IO is slow when you use a recycled dragon image. after re-installation, it was still very slow, but it was not the case with the system'
height and width of the image cannot be obtained during the loading of the image in the JS script, finally, we cleverly pass $ (document ). ready (function () {setTimeout (func, 10)});, the function is successfully run after onpagefinished. So, can I delay loading JS scripts in the same way?
The answer is yes.
I have transformed the interface with a very slow speed. The core js code I use is as follows:
;100073 order by ID ASC limit 20Scan 20 lines.The total data is about 5 million.The following example selects * from Wl_tagindex where byname= ' F ' ORDER by ID limit 300000,10 execution time is 3.21sAfter optimization:
SELECT * FROM (
select ID to wl_tagindex
where byname= ' F ' ORDER by ID limit 300000,10
) a left
join wl_t Agindex B on A.id=b.id
The execution time is 0.11s, the speed is obviously increasedHere need to explai
anti-virus software.Viii. Modify the registry.1. Speed up the boot and shut down the machineIn [Start]-->[run]--> type [Regedit]-->[hkey_current_user]-->[control panel]-->[desktop], string value [ Hungapptimeout] is changed to [200] to change the value data of the string value [Waittokillapptimeout] to 1000. In addition in [hkey_local_machine]-->[system]-- >[currentcontrolset]-->[control], change the value data of the string value [Hungapptimeout] to
RT----------------The following two steps can speed up the opening:1, program Files\foxit software\foxit Reader under the Shell Extensions folder Delete (best to do backup before deleting)2. Program Files\foxit Software\foxit Reader all of the. fpi files in the plugins folder below are deleted (these useless FPI files have the greatest impact on speed), so do a backupThe best way to do this is to create a n
This article mainly introduces phpStudy's slow access speed and startup failure solutions. For more information, see
This article mainly introduces phpStudy's slow access speed and startup failure solutions. For more information, see
The following section describes the solution to phpstudy startup failure.
You can use the following method to solve the problem of slow Wifi connection speed in Ubuntu11.04. Method 1: Disable IPv6 to open the terminal and enter the command echo "# disableipv6" | sudotee-a/etc/sysctl. confecho "net. ipv6.conf. all. disable_ipv6 = 1 "| sudotee-a/etc/sysctl. confecho "net.
You can use the following method to solve the problem of slow Wifi
Pioneer VDR-118chv burner, burn DVD + R disc, according to instructions should be able to 22x speed, but in fact when the disk, speed less than 1x, the entire system becomes very slow, slow response, the sound stops.
Later, we used hdparam/dev/hda to check that DMA was off. Try to enable DMA with hdparam-D1/dev/hda, b
Label: HTTP using Ar strong SP Div Problem C on
Some Google services and Google fonts are used by default in the new Wordpress version. For some reasons you know about Google in tianchao, WordPress is slowed down when it is opened, in this case, Google's service can be replaced with the public library CDN service launched in 360 to solve the problem of slow website traffic.
First, we recommend a plug-in "DW replace open sans" to replace the googl se
PHP Program Optimization recommendations, execution speed is too slow
This post was last edited by Zhuzhaodan on 2013-06-12 18:06:26
Existing
Four-level thesaurus 4000 wordsTXT document in the following format
Accent N. accent, Tone, accent
Acceptable A. Acceptable, agreeable
Acceptance N. Acceptance, acceptance, acknowledgement
Access N. Close, channel, entrance
Accessory N. Accomplice, accessory, accessor
Logons are slow and the logon speed is normal after logon. There are two possible causes: 1. DNS reverse resolutionOpenSSH will verify the IP address when you log on. It uses reverse DNS to locate the host name based on the user's IP address, then uses DNS to locate the IP address, and finally matches whether the logon IP address is valid. If the IP address of the client does not have a domain name, or the
In Windows Vista, Microsoft introduced a new feature named "auto tuning" for TCP/IP. In theory, "auto tuning" can be adjusted and optimized based on network application conditions, this increases the network transmission rate. In the default settings of Windows Vista, "auto tuning" is automatically enabled.
However, in practical applications, "auto tuning" sometimes does not play the expected effect, especially when the network adapter uses a third-party driver, it may even greatly reduce the
able to find the IP address quickly.
However, in fact, the connection speed between computers is not only very slow, but only some of them can be found. This is the key to the problem.
The fault causes and solutions are as follows:
First, the NetBEUI protocol is not installed. TCP/IP is a low-efficiency protocol. Therefore, NetBEUI is usually used in small LAN, which occupies less system resources and i
Symptom descriptionA certain Bureau adopts the MA5200 + 2403F networking mode. Due to the small amount of upstream optical resources, the 2403F cascade mode is adopted in the residential area, and the cascade mode adopts five category of twisted pair wires, you can use PPPOE to access the Internet. Some second-level switch users report that the Internet access speed is slow.Alarm informationThere are many CRC verification errors on the upstream port o
How to solve the problem of slow network speed in ubuntu-general Linux technology-Linux technology and application information, the following is a detailed description. I checked a lot of information and used a lot of methods to make it difficult for the world! I am a cable network of radio and television, dynamic IP address, and the network speed is good under m
Workaround: 1. Use plug-in "Useso take over Google", the plugin is mainly used to replace Google fonts in WordPress service; 2.Using plug-ins: W3 total cache plugin; The plugin is very useful for setting up caching and controlling the database performance of websites to improve the speed of website loading.3. Using the plugin tinypng, the plugin is mainly used to compress pictures and compress the pictures in the website.In addition, some of the site'
As the blog garden server is deployed on the telecom network, the slow access speed of Netcom users has been plagued by the blog garden.
Today, Xiao Zhang. Net recommended the uniform accelerator to me, saying that he accessed the blog Park much faster after installation. He accessed the Internet through Netcom.
I downloaded and tested it, and it worked really well. The
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