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　　iphone uses wireless network for slow resolution Step 1: When using WiFi access, first also check the current network signal is good. If the signal is not good, move to a location closer to the wireless router. Walls and distances can cause wireless networks to receive bad signals. Step 2: If the signal display is full, you can try to change the iphone automatically acquired DNS server address, so as

MySQL Slow Query Log (Slow Query Log), mysqlslow Like most relational databases, log files are an important part of MySQL databases. MySQL has several different log files, such as error log files, binary logs, common logs, and slow query logs. These logs help us locate the internal events of mysqld, database performance faults, record the change history of data,

Method one, directly on the device through the wireless network upgrade 1.iTunes upgrade Download firmware It's slow and it's not a weird thing to do, as long as friends who use ITunes to upgrade the firmware download are likely to have this problem. 2. If we have WiFi network can try to use directly in the mobile phone to download the iOS file, this relatively will download the file relatively small OH

the web? The DNS address assignment was unsuccessful, please reset the share. 　　Why is the speed very slow? Please plug the universal WiFi into the USB port on the front of the PC to avoid signal blocking. Check the host to see if there is a download, check the phone WiFi signal strength. 　　Why is USB not recognized? Please reseat the

MySQL Slow queryIn web development, we often write some SQL statements, a bad SQL statement may make your entire program very slow, more than 10 seconds the average user will choose to close the Web page, how to optimize the SQL statement to run those long-running SQL statements to find out? MySQL provides us with a very good feature, that is slow query! The so-c

determine, quit the cheetah WiFi reopened, try to have no nets. 2, again Liebao WiFi NAT driver checked back. 2, again open the Cheetah WiFi to see whether the Internet can be successfully. 　　Method Four 1, adjust the network card IP settings. Open the network connection to see if there are other network shares, some of which cancel

Slow query log: all SQL statements that run longer than long_query_time in MySQL slow query log records help you find slow SQL statements, so that we can optimize these SQL statements. Slow query log configuration: by default, mysql does not enable slow query logs. [Root @ r

netizens rarely know, the use of Jinshan defender built-in WiFi sharing can be very simple implementation. In the past, mobile phones can not be very convenient to use WiFi access, most users choose mobile phone operators to provide 3G or 2G data access, the cost is higher, and the speed is slow. So some people go out and often take a wireless router to spare.

I. Basic architecture of wifi 1. WiFi user space programs and libraries: External/wpa_supplicant/ Generate libwpaclient. So and wpa_supplicant. 2. Hardware/libhardware_legary/WiFi/is the WiFi management library. 3. JNI: Frameworks/base/CORE/JNI/android_net_wifi_wifi.cpp 4. Java part: Frameworks/base/services/Java/COM/A

Tags: mysql optimized sql slow logRecently, a development team complained that our platform contains MySQL cluster not, always reported the MySQL "Heartbeat Error", analyzed the logs they collected, did not find the network between the MySQL cluster node problem, but found a very interesting phenomenon , in the MySQL slow log found a large number of slow queries,

MySQL log-slow query log (slow-query-log)Slow query log: All SQL statements that run longer than long_query_time in MySQL slow query log records help you find slow SQL statements, so that we can optimize these SQL statements. Slow

1 Android platform WiFi module porting Essentials 1.1 WiFi structureUser interfaceAndroid WifiserviceWpa_supplicantDHD DriverDongle BinaryBcm43xxhardwareBlue: Need to be modifiedBlack: No Modification requiredThe blue part is for the Android environment, support BCM43XX chip needs to modify the section, the functions of the various parts are as follows:1. User interface (interface layer): controls and sets

MySQL5.6 how to optimize slow query SQL statements -- Introduction to slow logs Recently, a development team complained that the mysql cluster included in our platform was not good and always reported the "heartbeat Error" of mysql and analyzed the logs they collected, no network problems were found between mysql cluster nodes, but a very interesting phenomenon was found. A large number of

With the release of WiFi sharing, a large number of users have been removed from the mobile terminal traffic is not enough to worry about things, but also a small number of users feel very depressed is the emergence of a small number of users mobile terminals can connect their shared WiFi hotspot but do not normally online, This article collates the most complete drive life

memory password, easy to enter when the phone is online. With the above steps, the Intel my WiFi utility is configured. The following two steps can be followed by mobile phone wireless internet. 7. Click on the tray icon to enable Intel my WiFi technology. Once started, you will see a "Wireless network connection" status changed to OK. 8, set the share. If you are dialing on the Internet,

Recently, a development team complained that the mysqlcluster on our platform was not good and always reported mysql heartbeatError. after analyzing the logs they collected, they did not find any network problems between mysqlcluster nodes, however, I found a very interesting phenomenon. Recently, a development team in mysql's sl complained that the mysql cluster included in our platform was not good and always reported the "heartbeat Error" of mysql. I analyzed the logs they collected and found

First, IntroductionPt-query-digest is a tool for analyzing slow queries for MySQL, which analyzes Binlog, general log, Slowlog, It can also be analyzed using showprocesslist or MySQL protocol data crawled by tcpdump. The analysis results can be exported to a file, the analysis process is the parameters of the query statement, and then the parameterized query after the grouping statistics, statistics of the query execution time, frequency, percentage,

WiFi has become popular in recent years, once a new year to visit, meet the first sentence is: Congratulations XI, but now has become: your home wifi password is how much? It is obvious that the degree of enthusiasm for connecting WiFi. However, the ensuing is the development of a variety of rub-Wi-Fi artifact caused your network more and more

Basic structure of WiFiThe following five statuses are defined in the official Android documentation:Wifi_state_disabling WiFi NIC is shutting down 0Wifi_state_disabled WiFi NIC is not available 1Wifi_state_enabling WiFi card is opening 2Wifi_state_enabled WiFi Card Available 3Wifi_state_unknown

This article describes how to analyze MySQL slow query logs by setting parameters to analyze the causes of performance problems, for more information, see query. Currently, most databases provide performance analysis tools. For example, Oracle will help you find slow statements and provide optimization solutions. In MySQL, you need to enable slow log records for