Summary of mode performance function definition and usage

In the last issue, we summarized the general XML reading method, but we don’t usually need to use all the data of the XML source, so I also experimented with reading some data, such as the position based on the first letter of the title. Filter. For the three random reading methods, just change the query conditions XmlDocument: var nodeList = doc.DocumentElement.SelectNodes("item[substring(title,1,1)='M'][position() mod 10 = 0]"); XPathNavigator: var nodeList = nav.Select("/channel/item[substring(title,1,1)='M'][posi

1. XML data reading method performance comparison ( 2)

Introduction: In the last issue, we summarized the general xml reading method, but we usually don’t It is necessary to use all the data of the XML source, so I tried reading some of the data, such as filtering based on the starting letters of the title and the position of occurrence

##2. XML data reading method performance comparison (1)

##Introduction: Over the past few months, suspected SOA, I have been dealing with xml operations, and I have almost forgotten all about SQL.

##3.

ngx_lua uses nginx internal jumps to improve access efficiency nginx apache nginx php nginx rewrite##.

# Introduction: nginx: ngx_lua uses nginx internal jumps to improve access efficiency: Lua sometimes needs to request external links. I have tried several methods and found that this method has the best performance. Jia location /set {default_type'text/html';proxy_set_header Host test.yufei.com;proxy_connect_timeout 5s;proxy_send_timeout 3s;proxy_read_timeout 3s;proxy_pass http

##4. lighttpd+ PHP(FAST-CGI)+MySQL study notes_PHP tutorial

Introduction: lighttpd+PHP(FAST-CGI)+MySQL study notes I have heard about lighttpd for a long time. The FAST-CGI method with PHP has good performance, so I took the time to install it. I just completed the installation of the environment, and I haven’t looked at the performance yet! The following is the # I installed lighttpd+PHP (FAST-CGI)+mysql.

##5.

lighttpd+PHP(FAST-CGI)+MySQL study notes

Introduction: lighttpd+PHP(FAST-CGI) ) + MySQL study notes. I have long heard that the FAST-CGI method of lighttpd plus PHP has good performance, so I took the time to install it. I just completed the installation of the environment and haven’t looked at the performance in detail! The following is how I installed lighttpd+PHP. (FAST-CGI)+mysql##6.

sqlserver Performance comparison of three paging methods [Graphic and text]

Introduction: The second paging method is almost as efficient as the first paging method, but the second one can be used for older versions of sqlserver or even access. The last one should not be used 【Related Questions and Answers Recommendation]:

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