server performance testing tools

attributes such as reliability, scalability and interoperability may also be evaluated. performance testing is often done in conjunction with stress testing. Why is performance testing required? The purpose of the performance tes

This book focuses on the characteristics and methods of Web performance testing in the context of big data, as well as specific techniques and techniques for performance testing using the industry's broadest range of tools, ――loadrunner 11. The book theory combined with prac

@linwaterbin ~]# hdparm -t /dev/sda/dev/sda: Timing buffered disk reads: 246 MB in 3.12 seconds = 78.87 MB/sec The above two tools only return read/write performance, and the test is relatively simple.Use Bonnie ++ or Iozone to generate detailed disk reportsConfigure the following before installation: Download the corresponding version from the repoforge website [root@linwaterbin Desktop]# rpm -ivh --nod

/switches/network hubs, and know how they work. Why are these required? Because he may need network sniffing tools to locate network bottlenecks, it is obvious that he needs to know what he is "sniffing. As a performance testing engineer, I should be able to solve some simple network problems by myself, instead of pulling the network engineers to help, he should

[Introduction] Once you decide to build a website you should have a design standard in place. What do you think you should do next? Test! I use the word test to detect how your site responds to different screen and browser sizes. Testing is an important step in the process of responsive web design. If you understand ... Once you decide to build a website, you should already have a design standard in place. What do you think you should do next? Test!

Software performance testing process explanation and case analysis is a book that colleagues strongly recommend reading, when free time to tidy up the reading summary and feelings What is the first concept of software performance to clarify what is the software performance, the author from the user perspective, Admini

The best 14 free responsive Web design testing tools Once you decide to build a website, you should have already set design standards. What do you think we should do next? Test! I use the word "test" to detect the response of your website to different screens and browser sizes. Testing is an important step in responsive web design. If you understand what

the upper limit, that is, the maximum throughput rate; About Stress Testing Based on several prerequisites of throughput pressure test: Number of concurrent users; (the number of users who are sending requests to the server at the same time)Total number of requests;Request Resource Description; Several important indicators: Request Wait Time Average user request Wait time (the main measure of the

Website Availability refers to whether a user can effectively find the required information or complete his/her tasks, how efficient it is, and whether it is pleasant or satisfying. If the website availability is poor, it will waste users' time and greatly reduce the website's turning back rate. This is a crucial issue for the survival of the website. Therefore, usability testing is an important part of the website launch process. Today, this article

At present, in software development, unit testing is increasingly valued by developers. It can improve the efficiency of software development and ensure the quality of development. In the past, unit tests were often used in server development. However, with the gradual division of work in the Web programming field, related unit tests can also be carried out in the front-end Javascript development field, to

-compile to get a large request that can be sent 4. cannot assign requested addressThe client frequently connects to the server. Because each connection ends in a short period of time, a lot of time_wait operations are caused, so that the available port number is used up, so the new connection cannot bind the port.To modify the configuration of the client machine,Add the following to sysctl. conf: Net. ipv4.tcp _ tw_reuse = 1 indicates enabling reuse.

Use python for automated testing-automated testing on the server (3)-more http client instances and pythonclient In the previous article, we only implemented a simple http client function. The request also provides various functions such as keep alive, SSL, multi-File Upload, cookie management, and http requests header management, all functions are supported in r

To: gotesting software testing Alliance Forum http://www.78test.com Recently, during the training for new employees, we summarized and sorted out the performance testing steps and put them here for everyone to make a decision... Collection of performance testing requiremen

follows: 1) Why cannot a simulation program send messages? A: In this case, it is usually a configuration problem. Before performing a performance test, make sure that the configuration files are correct, the server and client configurations are correct, and the connection port is accurate. The connection fails. This is generally caused by incorrect port numbers. 2) Why is the message sent incorrectly pars

. In fact, online users may not be concurrent with other users. For example, users who are browsing the Web page have no impact on the server. However, the number of online users is one of the main bases for calculating the number of concurrent users. Request Response Time: It refers to the time when the client sends a request to get a response. In some tools, the request response time is usually "tllb"

respectively, Guo Jing will win. As for the three hundred strokes, it is no longer necessary even if Guo Jing will lose. He only needs to pass the next one hundred moves. Thoughts When we conduct software stress testing, we often need to add more concurrent users and transactions than load testing. Why? 3. Concurrent Testing Verify the system's concurrent proces

Introduction to several tools for stress testing on Linux disks or other types of servers (I) dd: reads data from one source and writes it to another destination address in bits [SQL] [root @ linwaterbin ~] # Ddif/dev/zeroof/home/oracle/disktestbs1Mcount512... Introduction to several tools for stress testing on Linux d

During performance testing, we often hear the terms of concurrent users, response time, and throughput. Maybe everyone understands that there is a level and depth of understanding here. I recently read the book "detailed explanation of Software Performance and case analysis" and read his explanation. It turns out that my understanding of these terms is superficia

features and features are turned on in this release.Third, the performance test process concerns1. Usage of resources: View the usage of resources. Resources include CPU, memory, hard disk and so on.2, the release of resources: The query system after the business process is stopped, the normal release of resources for subsequent business use. According to reason business stop, resources should be released in time. Frequently asked questions, memory l

0x01 scenario Hypothesis0x02 Chrome0x03 Firefox0x04 IE0x05 Conclusion-0x01 scenario HypothesisThree browser developer tool use and page debugging skills, this article does not describe, only said in the security test encountered the situation.Consider the following scenario: To do a security test for a Web application now, the client/server uses HTTPS bidirectional authentication, and the client uses a tool of the U-Shield.According to the above scena