Tech Notes

In ‘Single User Load’, web analyzer like HTTPWatch, DynaTrace etc. are used while browsing through the scenarios and page load time and various other KPIs are collected.  The KPIs are analyzed further for tuning the web page response time. Following are the key KPIs that can be used for analysis purpose – Web Page Loading Time Network Time HTTP Requests Request Size Web Page Loading KPIs Time to First Impression o         This is the time from when the URL is entered into the browser until the user has the first visual indication of the page that gets loaded.  It depends on the initial HTML document when the browser can start drawing content. There are different Best Practices available that talk about different strategies. Google for example downloads a minimalist page to provide fast first visual rendering. It then delays loads more content after ‘onLoad’ or even later when the user starts interacting with the page. o         The recommended value for this KPI is like this –

Following are collection of articles, discuss on various ways to optimize web page performance, monitoring of web application from end-user perspective (i.e. using various browsers' plugin like FireBug for Firefox, PageSpeed for Chrome and DynaTrace for Internet Explorer) and Tips and Tricks for tuning the page load time. Best Practices on Web Site Performance Optimization It discusses / explains importance of multiple KPIs (Page Load Time, Network Roundtrips etc.) related to web page performance. Best Practices on Network Requests and Round trips It explains the working of browser and how it downloads resources and its impact on performance Best Practices on Browser Caching It explains the working of Browser Cache and its importance in web page performance. Best Practices for Speeding up your Website It list 35 best practices divided into 7 categories. Web Performance Best Practices from Google Crispy, extensive, very helpful information on web site performance. Optimi

Screening of Performance Testing Profiles x --> Mandatory Skills $ --> Optional Skills Skill / Level Tester Sr. Tester Lead Manager Remarks Tool and Utilities Expert with one performance testing tool (proprietary) x x x $ LoadRunner, VSTS etc. Good in one performance testing tool (open source) $ x x x Expert in open source testing tool would be added advantage.   Few open source tool - Jmeter, OpenSTA Awareness of other performance related utilities $ x x x HTTPAnalyzer, Fiddler, Netmon etc. Awareness about performance metrics and counters $ x x x Perfmon, SQL Profiler etc. Setup Proficient in environment setup (SUT) x x x $ Setup of A