node js performance testing

in the Web page or the application background interface development, it is generally necessary to test the development of the interface to correctly receive and return data, for a single test, The Postman plugin is a good Http request emulation tool. but postman can only simulate single-client requests, and for performance testing such as simulating multiuser concurrency, other tools are required, and a pow

Detailed description of the use of client sessions in Node. js programming, node. jssession Static websites are easy to expand. You only need to cache all the data and do not need to consider combining stateful content from different servers to users. Unfortunately, most Web applications use stateful content to provide personalized experiences. If your applicatio

JS node, are aware of 3 major categories:ELEMENT nodeAttribute nodeText nodeThe common element node, the attribute node. There are two ways, SetAttribute () getattribute (), setting and getting property valuesIn the actual work, long we get a bunch of data from backstage, to show on the front page.After we have written

generate an overall report for each rule, if the page can be optimized, then YSlow will list the specific changes. (You can analyze the pages of the site and tell you how to improve the performance of the site, how to optimize based on certain rules) I have been using, recommend.7.webpagetest:Webpagetest is 1 online performance testing site, enter your URL on th

the hash value of the SQL, and then finds out whether the hash value exists in the library cache. If present, compare this SQL with the cache. Assuming "Same", the existing parse tree and execution plan are used, and the work of the optimizer is omitted. This is also the soft parsing process. (For the implementation plan, see http://www.cnblogs.com/snifferhu/p/3461982.html) T4 The front-end page contains HTML, images, CSS, JS, flash and

WEB performance testing tools are mainly divided into three types: one is to test the page resource loading speed; the other is to test the page rendering speed and JS operation speed after the page is loaded; one is to evaluate and analyze the page in general. ~~~ If anyone has better tools, share them with us.1. Firebug2.HttpWatch 3. DynaTrace's Ajax Edition4.S

("read the original" to access), which is never treated by other similar plug-ins. Node. js Tools for Visual Studio provides the following powerful features: Project template: allows you to get started quickly SMART awareness: allows code writing to fly Integration with npm: same experience as Nuget Manager Interactive window: Faster code logic test Advanced debugging: Debugging can be perform

Express author TJ said goodbye to Node. js and rushed to Go, tjnode. js First, this is a Farewell Node translated from TJ. js. After reading this article, I have indeed suffered some impact, but I do not agree with some of the author's views, such as I think

Generally, the following common indicators are used to measure the performance of a software system: 1. Response Time)The response time is the time spent by the software system to serve the website. For the website system, the response time starts from clicking a page timing, it seems very simple to display the time interval when the timer ends in the browser. However, during the response time, the software system has gone through a series of proces

performance testing techniques. The significance of the test is that before the user consumes the output code, the developer first consumes him, giving it an important quality assurance.Tests include unit testing, performance testing, security

) Rapid Search Metrics It is used for SEO search engine optimization and speed testing and analysis. The data includes the average website speed, data volume, and non-HTML loading time.6) Host Tracker Over 95% of nodes from around the world can be used to simulate and test websites, including sending error reports to mobile phones, support for HEAD, POST, GET, and other methods, and CGI script operations.7) Pingdom Tools Displays the loading time o

testing interface Performance with LoadRunnerMethod One: Call the interface through the WSDL address1. Open LoadRunner click on the upper left corner select New script, select the Web service protocol in the pop-up window, then click the Create button2.Click Manager Services(Note: The cursor of the front right window script must be preceded by "return();"), click in the pop-up window Import, in the Pop-up

single node to be used. You can also do the finest granularity, and then use Redis to lock, which reduces the likelihood of thread blocking. Summarize: Either use blocking to schedule the thread, You can either implement a reactor pattern that is similar to NIO in a distributed environment to dispatch. Ensure first-in, first-out, even if some slow state, not first come to the contrary, causing poor user experience. In-depth understanding of the us

Linux performance testing and monitoring sar commands. Linux performance testing and monitoring sar Command sar (SystemActivityReporter system activity report) is currently one of the most comprehensive system performance analysis tools in Linux. it can be used to test and m

: What the hell is this? If I am a fruit powder, I may have to come to the conclusion that Windows is too spam and give up Windows. Fortunately, I am a rigorous front-end engineer, so I began to think about this number. Wait. why is this number so familiar? Will the number 15.625 ms be too much like the maximum timer interval in Windows? Download a ClockRes file immediately for testing. the following result is displayed when the console is running:

: What the hell is this? If I am a fruit powder, I may have to come to the conclusion that Windows is too spam and give up Windows. Fortunately, I am a rigorous front-end engineer, so I began to think about this number. Wait. Why is this number so familiar? Will the number 15.625 ms be too much like the maximum timer interval in Windows? Download a ClockRes file immediately for testing. The following result is displayed when the console is running:

anonymous function needs to be interpreted every time, but the named function needs only to be explained once, so the performance is elevated, but the test finds that the elevation is very, very small, and there is absolutely no need to write a very handy callback as a separate variable. There are two other ways to name a named function: function expression Copy Code code as follows: var func = function () { Console.log (' a ')

)-----------------------------------------------------------------------------------CD $ORACLE _base/diag/rdbms/' echo ${oracle_sid%?} '/$ORACLE _sid/trace; Tail-f Alert_$oracle_sid.log-----------------------------------------------------------------------------------# # 5.4 OS log (root)-----------------------------------------------------------------------------------Tail-f/var/adm/syslog/syslog.log-----------------------------------------------------------------------------------# # 5.5 Netwo

The development tools built into each major browser provide a console object. It has two main functions: Displays the error message when the Web page code is run. Provides a command-line interface for interacting with Web page code. Let's look at how to use the console for performance testing in detail below. For front-end developers, often in the development process to monitor the value of some expression

?svId=118 The second method: (1) Add "thread Group" and add "recording controller" under the thread group (2) Add "HTTP proxy server" Target controller: Test plan > Thread Group Grouping: Putting a new controller in each group PORT: 9999 (must ensure that the port is not occupied) Exclusion mode:. *\. (BMP|CSS|GIF|ICO|JPE?G|PNG|SWF|WOFF|JS) (3) in the "HTTP proxy server" click the "Start" button (4) Open the browser and set the proxy: (You must ensur