cloudflare performance comparison

partition_by1 is a 32-length varchar type for retrieval. The remaining two fields are floating-point numbers and are mostly used for sorting; Autokid is used as the sub-column and serves as the primary key. it is used only for atomicity guarantee during data loading and has no practical significance. 2. purpose: Compressed space comparison The larger the compression ratio, the smaller the disk space occupied, directly reducing the data storage co

* * #include The results are as follows:[email protected]:~/test$./boost_regex_main used: msmatched 10000 timesThis result, unexpectedly 40 times times faster than C, and this is in the pattern string can match the target string under the premise, if the test does not match the situation, the boost is 4,000 times times faster than C, I can not believe this result, paste the test with the pattern character and the target character, see if there are people like me, Or for other reasons, such as

MySQL queries random data in four ways and performance comparison below from the following four solutions to analyze their respective advantages and disadvantages. Solution 1:SELECT * FROM 'table' order by rand () LIMIT 0, 1; This method is very slow. The reason is that MySQL creates a zero-time table to store all result sets, then creates a random index for each result, sorts the results, and returns the

This article mainly introduces the performance comparison and analysis of Python's judgment value in list or set, and compares and analyzes the execution efficiency of list and set loops based on the instance form, for more information, see the examples in this article. We will share this with you for your reference. The details are as follows: The speed of determining whether a value is in the set is mu

' id ' int (ten) not NULL auto_increment,auto_increment=2;/*!40101 SET [emailprotected]_ Character_set_client */;/*!40101 Set [emailprotected]_character_set_results */;/*!40101 set [email protected]_collation_connection * *; 2. test code as follows Package Mybatisinsertdatademo;import Java.io.inputstream;import Org.apache.ibatis.session.sqlsession;import Org.apache.ibatis.session.sqlsessionfactory;import Org.apache.ibatis.session.sqlsessionfactorybuilder;import Mybatisinsertdatademo.student;i

Result:The insert performance of pgsql on FreeBSD is slightly higher than that on Win (single user, no concurrency ). Others:I have a test http://www.cnblogs.com/81/archive/2008/12/06/1348896.html in frontIt indicates that mssql2000 is slightly better than pgsql83, but today's comparison data mssql2005 is slightly worse than pgsql84, which is not expected, but there is a difference: last time, the clie

: 0.031ms Two, the NUM field to create the index ALTER TABLE ' test_test ' ADD INDEX ' num_index ' (' num '); Query again SELECT distinct num from test_test; Select num from test_test GROUP by NUM; [SQL] SELECT distinct num from test_test; Affected rows: 0 time: 0.000ms [SQL] Select num from test_test GROUP by NUM; Affected rows: 0 time: 0.000ms At this point we found that the time is too small for 0.000 seconds can not be accurate.We go to th

Failure Phenomenon: Introduction and performance comparison of multimedia redirection function for Remote Desktop Connection. 　　Solution: The multimedia redirection feature for Remote Desktop Connection is enabled on both the client and host side, and its primary role is to decode the files played on the host side, rather than sending bitmap directly to the client. The main advantages are: 1. Save bandw

Tags: div float SQL Time blog host Mail database service hrefPrepare can solve the large-volume Web site to the database server load and cost, this article through an example to introduce the pre-query prepare and the performance of ordinary query comparison, the need for friends can refer to. The instance code is as follows: PHPclassTimer { Public $StartTime= 0; Public $StopTime= 0; Public $TimeSpent= 0;

', 'name') values $ values "); } Else { $ Values. = ", ($ I, 'testtest ')"; $ Db-> query ("insert into 'test' ('id', 'name') values $ values "); } Break; } If ($ I % 100000 = 0) {// Insert only in this case If ($ I = 0 ){ $ Values = "($ I, 'testtest ')"; } Else { $ Db-> query ("insert into 'test' ('id', 'name') values $ values "); $ Values = "($ I, 'testtest ')"; } } Else { $ Values. = ", ($ I, 'testtest ')"; } } } Elseif ($ num = 3 ){ // Insert a transactio

(0,1,2,3,4,5,6,7,8,9);$array = Bubble_sort ($array);}Print_r ($array);?> During a iis7+php phpinfo () test, 100 concurrent, 10,000 requests,8,978 requests failed! attached: IIS and PHP installed on Windows 7To install IIS:Control Panel-Programs and features-turn Windows features on or off:Internet Information Services-Web management Tools-IIS Admin Console tickInternet Information Services-World Wide Web Services-common HTTP features-HTTP error tickInternet Information Services-World Wide Web