riverbed optimization

Label:First, the operating system configuration optimization:1. On the network side, modify the/etc/sysctl.conf file, increase the number of TCP supported queues, reduce the resource recovery when disconnected.2. Limit the number of open files. Modify the/etc/security/limits.conf file to add a bit of content to modify the limit on the number of open files.3. Turn off firewall software such as Iptables,selinux. Second, System configuration optimization

Optimization of database hardwareHow do I select a CPU?Would you prefer a faster single-core CPU or a higher number of cores? MySQL has some work that only uses single-core CPUs MySQL does not support CPU cores more and more faster Recommendation: mysql5.5 Use a server that does not exceed 32 cores. It is also recommended that the single core frequency be faster CPU.Disk IO optimizationIntroduction to Common RAID levelsRAID0: Also become a

fragmentation and re-create the index. You can use the SQL server Manager to re-create the index, or use the following SQL statement:Copy codeThe Code is as follows:-- Displays the index fragmentation of the testIndexOrder table.Dbcc showcontig (testIndexOrder)-- Re-create the index of the table-- The first parameter can be the table name or table ID.-- The second parameter. If it is '', it indicates that all indexes of the table are affected.-- The third parameter is the fill factor, that is,

Mysql Database SQL Optimization-subquery optimization and mysql Database SQL Optimization1. What are subqueries and table join queries:Subquery: The select statement is used in the select or where clause of the primary SQL statement; select. name, (select B. name from B where B. id =. id) from a where. name lik 'a %'Table join query: a joint query of multiple tables; select. name, B. name from a, B where. i

modification. In addition, SQL server limits the number of indexes and the length of indexes. For more information, see 5) re-indexing as necessaryAfter running SQL server for a period of time, some index fragments will be formed. At this time, indexes need to be re-built. Sometimes re-indexing can have unexpected results. View the index fragmentation and re-create the index. You can use the SQL server Manager to re-create the index, or use the following SQL statement: -- Displays the index fra

The author has done some optimization work in the iOS development process, has some superficial understanding to the iOS performance optimization, has been wanting to own these experiences, summarizes briefly.As the first of the series, I intend to summarize some of the general principles of iOS optimization. Because I think whether the list smoothness

Many people have no idea about the optimization of web pages, and many people in the industry have little or no idea about the optimization of web pages. Speaking of my understanding of web page optimization, I once searched for "Web page optimization" topics on various search engines. The results were all articles abo

ObjectiveIn this section we will delve into the main optimization methods in visual slam-graph optimization (graph-based optimization). In the next section, we describe a very popular graph optimization library: G2O.As for G2O, I wrote a document in 13, but as I deepened my understanding, I felt more dissatisfied. In t

Http://www.mat.univie.ac.at /~ Neum/glopt.html Global Optimization --------------------------------------------------------------------------------Global Search, as timely as ever''Consider everything. Keep the good. Avoid edevil whenever you noticeIt .''(1 thess. 5:21-22) -------------------------------------------------------------------------------- New-coconutIntroduction-TechniquesSoftware (Global)-software (local)-Test ProblemsApplications-Other

Code Optimization has many benefits, but it does not mean that all code needs to be optimized. sometimes excessive optimization is counterproductive. DonaldKnuth, the originator of modern computer science, once said that early optimization is the source of all evil, because: making the right program faster... "> Code Optimiza