Monthly Archives: December 2011

Stuff The Internet Says On Scalability For December 30, 2011

Pork. The Other HighScalability: PlentyOfFish: 6 Billion Page Views; World: info doubling every 2 years; 2015: 7,910 exabytes of global digital data; Khan Academy: 4 million uniques; G+: 62 million users; Zynga: leased 9 megawatts of ...

Strategy: Guaranteed Availability Requires Reserving Instances in Specific Zones

By Todd Hoff

When EC2 first started the mental model was of a magic Pez dispenser supplying an infinite stream of instances in any desired flavor. If you needed an instance, because of a either a failure or traffic spike, it would be there. As amazing as EC2 is, t...

PlentyOfFish Update – 6 Billion Pageviews and 32 Billion Images a Month

By Todd Hoff

Markus has a short update on their PlentyOfFish Architecture. Impressive November statistics: 6 billion pageviews served 32 billion images served 6 million logins in one day IM servers handle about 30 billion pageviews 11 webservers (5 of w...

Citrix Protocol on LoadRunner – Tips and Tricks Part 2

By swaraj gupta

This blog is continuation to my last blog ‘Citrix Protocol on LoadRunner – Tips and Tricks Part 1’. In this article, I will discuss more tips that can be helpful when working with the Citrix_ICA protocol and LoadRunner. Number of vusers per LoadGenerator Machine: A LoadGenerator machine can run only a limited number of...

Linking third party libraries (Boost) with Forecast

By Aigars E

In this article I will explain how to set up Forecast so you can use third party libraries. This is an extremely powerful feature that allows you to leverage code written by others to solve common problems. In this example I will use Boost library as an example and Boost.Regex to be more precise. The...

2012 predictions: The average web page will hit 1 MB, Google and Siri will face off, and Chrome, Windows 7, and RUM will rise

By Josh Bixby

It wouldn't be December without an avalanche of predictions for 2012. Here's my contribution.

Citrix Protocol on LoadRunner – Tips and Tricks Part 1

By swaraj gupta

In this article, I am going to highlight some tips that can be helpful to performance test engineers to effectively work on Citrix applications. By understanding and implementing these points, script debug and test execution will be a lot easier. Points to consider while recording Citrix Vuser scripts simulate the Citrix ICA protocol communication...

O’Reilly Radar interview: You can’t get away with a bad mobile experience anymore

By Josh Bixby

Last week, Mac Slocum invited me to chat with him about mobile web performance. He had some great questions about apps versus mobile sites, common optimization mistakes, and whether or not different device owners have different expectations when it comes to performance.

Scripting RMI with Loadrunner VuGen 9.5x and 11

By Richard Pal

The Java Remote Method Invocation (RMI) is a Java application programming interface that supports an object-oriented way of remote procedure calls (RPC). In this article I show you two ways to create performance tests scripts with Loadrunner for RMI-driven applications. As RMI is a Java-specific protocol, the Java vuser or the Java Record replay protocols...

Using Web Analytics for Modeling Application Usage in Performance Tests

By Suraj's Performance Engineering Blog

In my last article, I wrote about the paradigm shift in web application architecture and why performance testers have to re-think their strategy around testing Rich Internet Applications (RIA) for performance. Web application development processes and ...