Monthly Archives: March 2012

Strategy: Exploit Processor Affinity for High and Predictable Performance

Martin Thompson wrote a really interesting article on the beneficial performance impact of taking advantage of Processor Affinity: The interesting thing I've observed is that the unpinned test will follow a step function of unpredictable perform...

Big Data In the Cloud Using Cloudify

By Nati Shalom

Edd Dumbill wrote an interesting article on O’Reilly Radar covering the current solutions for running Big Data in the Cloud Big data and cloud technology go hand-in-hand. Big data needs clusters of servers for processing, which clouds c...

Concurrency of Users Vs Increasing Transaction Rate

By Jason Buksh

I’m going to write about increasing the number of transactions to simulate a higher number of Virtual Users. This is a common technique used by performance testers to ‘cheat’ or rather avoid the high costs associated charged by vendors. I recently answered a question on Linkedin and suggested increasing the transaction rate. I was sent the following...

LoadRunner to JMeter – A successful transition

By swaraj gupta

It all began on the day when a bunch of three performance testers were given a task of migrating the performance testing activities of multiple applications of a client to an open source tool. This included architectural level migration, resource knowledge transition and testing-operation transition from a licensed tool (LoadRunner) to an open source...

Scale Indefinitely on S3 With These Secrets of the S3 Masters

By General Chicken

In a great article, Amazon S3 Performance Tips & Tricks, Doug Grismore, Director of Storage Operations for AWS, has outed the secret arcana normally reserved for Premium Developer Support customers on how to really use S3: Size matters....

Ask For Forgiveness Programming – Or How We’ll Program 1000 Cores

By Todd Hoff

The argument for a massively multicore future is now familiar: while clock speeds have leveled off, device density is increasing, so the future is cheap chips with hundreds and thousands of cores. That’s the inexorable logic behind our multicore...

NYT redux: For Impatient Web Users, an Eye Blink Is Just Too Long to Wait

By Joshua Bixby

My take on the salient points from this highly forwardable NY Times story about the importance of delivering a fast online user experience.

Grace Hopper to Programmers: Mind Your Nanoseconds!

By Todd Hoff

Computing pioneer Grace Hopper, inventor of the compiler, searched for a concrete way to create an intuitive understanding of just how fast is a nanosecond, a billionth of a second, which was the speed of their new computer circuits. As an illustration...