2 2 s10 performance upgrades

COM Component Design and Application (8)Implement multiple interfacesHttp://www.vckbase.com/document/viewdoc? Id = 1501Author: Instructor YangDownload source codeI. PrefaceFrom the fifth round to the seventh round, we useATL writes a simple COM component, which is simple because only one custom (IFM) interface ifun is implemented in the component. Of course, if you want to be lazy, we can add all 200 functions to this interface. If so, no one will like to use this component. Since a component ca

take precedence over the local cache.One workaround is to turn on the server push only for the first access user. The following is an example of the official Nginx, based on the Cookie to determine whether the first access. Server{Listen443 SSL HTTP2 Default_server; Ssl_certificate SSL/certificate. PEM; Ssl_certificate_key SSL/key. PEM; Root/var/www/html; Http2_push_preload on; Location = /demo. html {add_header Set-cookie "Session=1"; Add_header Link $ Resources; }}map $http _cookie $resou

2. css performance optimization topic ---- 2, css Performance Optimization Css selector Optimization First, the resolution sequence of the css selector is from right to left. For example: 1. (1) box> span When rendering a webpage, the browser searches for span first, and then continues to search up until the parent ele

both ADO and JDBC has found a response latency issue. Communicating with the customer's IT staff that a Cisco firewall has been passed from the application server to the database. We are in the application server, application server-side switch, database server-side switch, database server, 4 points for network capture. After comparison, it was found that the data packets of two switches before and after the firewall were obviously problematic: there was a very obvious case of packet chaos, the

be quickly rolled back if problems occur. So I'm going to do the tuning several times so that it's a more secure performance boost without compromising normal business operations.First step running environment tuningThis step is important, in a healthy and stable environment, in order to maximize the performance of the platform, so first to provide a healthy and stable environment for the platform.1 ASP. N

pending thread to the other available virtual processors. Thread migration can degrade application performance because the new virtual processor cache may not have the data or state information needed to run the thread. Running applications on multicore systems can lead to a large number of thread migrations, and the strategy of reducing migration is to create processor groups and assign them to those processor groups.(1). Windows Memory Usage Monito

Mysql performance optimization 2: mysql Performance Optimization Next, Mysql performance optimization 1Create an appropriate index To improve database performance, indexing is the best and inexpensive. There is no need to add memory, no need to change the program, no need to

Summary.Figure 1. System Overview In the Application Summary view, select the appropriate Application in this example db2bp.exe ).Figure 2. Application Summary Select SQL Activity in Application Details View.Figure 3. Application Details MethodThe SQL Activity interface shown in Figure 3 shows information about the statements executed by the application, including the task unit UOW, cursor, read row, and selected row. To determine whether an in

Ant Financial learns PHP performance optimization (2) PHP language-level performance optimization (part 1) 3. Optimization: use as few magic functions as possible Situation description: Magic functions provided by PHP have poor performance. Why? To save PHP programmers trouble, the PHP language has done a lot Good

Hibernate uses cache (level 1, level 2, and query) to improve system performance and hibernate system performanceIn hibernate, we usually use three types of caches: level-1 cache, level-2 cache, and query cache. Below we will analyze the usage of these three caches in the project, as well as their advantages and disadvantages. The function of caching is to improv

Oracle performance optimization operation 2: Avoid unnecessary type conversion and oracle Performance Optimization It should be noted that the potential data type conversion should be avoided as much as possible. For example, if you compare the numeric data with the numeric data, ORACLE automatically converts the numeric data using the to_number () function, re

Difficulties in Kafka performance optimization (2); kafka Performance Optimization Last article: http://blog.csdn.net/zhu_0416/article/details/79102010Digress:In the previous article, I briefly explained my basic understanding of kafka and how to use librdkafka in c ++ to meet our own business needs. This article is intended to study some alternative methods. It

immediately after execution, and then the data is written to the hard disk when it is idle. More appropriate for logging.Straight_join: Defines the association order.Sql_small_result,sql_big_result: For querying, the size of the flag result set, the boot sort operation in memory or hard disk execution.Sql_buffer_result: Put the result of the query into a temporary table and release the table lock as soon as possible.Sql_cache,sql_no_cache: whether to cache.Use Index,ignore Index,force index: En

In practical applications, there are 3 ways to analyze a single query SQL performance: Show status, show profiles, and slow query logs. First, use show profile 1, the default is disabled, open in the session #开启profileSet profiling=1; 2. When a query arrives at the server, the tool logs the profiling information to a temporary table and gives the query an integer identifier starting at 1, which can be v

and cascading update break through the traditional definition of foreign keys, and the features are a little too powerful, before use, you must determine that you have mastered the function scope. Otherwise, cascading deletion and cascading update may cause your data to be inexplicably modified or lost. In terms of performance, cascading deletion and cascading update are more efficient than other methods.Optimization ⑤: proper use of stored procedure

　Performance test of LAN switch interface in Flight Tower firewallUnited States flight Tower Fortinet Firewall, the default intranet interface type is hardware exchange, all intranet interfaces share a gateway, the intranet interface allows mutual access, here will be two notes A, B access to the 13, 14 ports to be tested. Notebook A's intranet IP address is set to 10.0.1.28, and the intranet IP address of notebook B is set to 10.0.1.38.Because the in

About the optimization of Dom operation performance in the browser, in the previous blog article titled Optimization of Dom operation performance in the browser (I) the impact of accessing and modifying DOM elements on performance and the optimization scheme have been described in. This time, let's talk aboutRedrawing and relayoutProblem. After the browser downlo

is similar to set. The difference is that set is not automatically ordered, while sorted set can sort members by providing an additional priority (score) parameter, it is insert-ordered, that is, automatic sorting. When you need an ordered and non-repeated list of sets, you can choose sorted set data structure. For example, Twitter's public timeline can be stored as score by posting time, in this way, the query is automatically sorted by time. Implementation Method: In redis sorted set, hashm

Cheung-Fine content: Brief introduction Tip 1: Caching common data on a WEB server Tip 2: Cache commonly used data in application or session objects Tip 3: Caching Data and HTML on a WEB server disk Tip 4: Avoid caching inflexible components in application or Session objects Tip 5: Do not cache a database connection in a application or Session object Tip 6: Magical Session Objects Tip 7: Encapsulate code in a COM object Tip 8: Get resources la

Label:Original: Fourth chapter--SQLSERVER2008-2012 Resources and performance monitoring (2).This article goes on to explain how to monitor CPU usage.Objective:The CPU is the most important resource in the server. In the database server, CPU usage should always be monitored so that SQL Server is in optimal condition.This article will use reliability and Performance