Google App Engine Load Test Result

by Niclas Nilsson on  Jun 05, 2008 4

The result of the Google Web Toolkit on Google App Engine load test: The load was 10 reqs/sec for an hour, and 35 reqs/sec at peak. The result? No sweat.

Google App Engine public load test today

by Niclas Nilsson on  May 23, 2008 1

Today, at 4PM GMT+2 (in about an hour), there is a public load test on the Google App Toolkit. Can Google Web Toolkit and Google App Engine handle the InfoQ effect?

Article: Scalability Principles

by Floyd Marinescu on  May 21, 2008 7

At the simplest level, scalability is about doing more of something. This could be responding to more user requests, executing more work or handling more data. This article presents some principles and guidelines for building scalable software systems.

Rails performance analysis with New Relic

by Werner Schuster on  May 02, 2008

New Relic introduces a new performance analysis tool for Rails applications. The tool is installable as a Rails plugin, and offloads the analysis to the New Relic service. We talked to New Relic's Lew Cirne about the technology behind the product.

Measure Teams, Not Individuals

by Mike Bria on  Jan 31, 2008 3

Michael Dubakov recently expressed warning against the measurement of individual velocity and individual estimate accuracy. His view: measurement of these metrics not only provides no more useful information than is already available with their team-level equivalents, but may also have a tendency to encourage teams into behaviors that reduce effectiveness.

Article: The Box: A Shortcut to finding Performance Bottlenecks

by Floyd Marinescu on  Sep 24, 2007 6

Quite often performance problems will be reported with some very antidotal comments that do nothing to help you understand where to start looking. Faced with this dilemma, it is not uncommon for teams to start guessing at the root cause. Now enter "the box", a little diagram that is an abstraction of a complete system. The box is a reminder of the true cases of performance bottlenecks.

Presentation: Maintaining Java Apps in Production Environments

by Floyd Marinescu on  Mar 06, 2007 2

Alexandre Rafalovitch delivers an organized overview of the tools and techniques that help with resolving problems that arise in real production environments. The presentation places emphasis on free and open source tools capable of being useful out of the box, without extensive configuration. Common problems are discussed, along with methods of rapid analysis and root cause determination.

Predictions: The Changing World of IT Work

by Deborah Hartmann Preuss on  Feb 17, 2007 3

In a recent Datamation article, James Maguire noted the challenge of staying employed in an environment in which the rules are continually rewritten. He spoke with Gartner analyst Diane Morello for 5 predictions for those of us thinking about career directions over the next five years.

What Creates Individual Productivity? Can We Improve It?

by Deborah Hartmann Preuss on  Oct 19, 2006 1

Is it helpful, or even possible, to change the productivity of individuals in a collaborative team? What exactly constitutes productivity, when deliverables come from teamwork? It's a tricky subject. We bring you highlights from a conversation held a few weeks ago on the AgileProjectManagement list.

WCF Live Service Trace Viewer

by James Vastbinder on  Oct 05, 2006

Craig and Vittorio release their Live Service Trace Viewer which is an enhancement to the one provided in the .NET 3.0 SDK. The differentiator: you can view the WCF interactions as they happen.

Measuring Performance in the Adaptive Enterprise

by Deborah Hartmann Preuss on  Aug 09, 2006

Traditional thinking has turned budgets into fixed performance contracts that force managers at all levels to commit to specified financial outcomes, despite the fact that many of the underlying variables are beyond their control. As Agility increases the futility of this exercise becomes apparent. Thought-leader Jim Highsmith proposes a helpful alternative more harmonious with Agile values.

Framework Performance: Ruby on Rails vs Django vs Symfony

by Peter Cooper on  Jul 16, 2006 5

Ruby on Rails goes head-to-head with Python's Django and PHP's Symfony frameworks in a battle of speed and stability.

19 Pitfalls of Technical Leadership

by Deborah Hartmann Preuss on  Jun 19, 2006 3

Hacknot's list of Great Mistakes in Technical Leadership, while not particularly intended for an Agile audience, contains some sage advice - good leadership is not restricted to Agile teams. As always, Agile teams still need to balance advice from traditional sources against Agile values and principles.

Vacations: Creative Work Requires Rest

by Deborah Hartmann Preuss on  Jun 14, 2006

Summer has traditionally been a time for vacations and get-aways, a time to clear the mind and "recreate" oneself. Yet, according to a recent study, one third of people expect to take work with them on their holidays this year. Is this healthy? Can it be changed?

Article: A Look at Common Performance Problems in Rails

by Obie Fernandez on  Jun 13, 2006 13

Rails performance expert Dr. Stefan Kaes takes a look at the most common performance issues in your Rails applications and what to do about them. Advice is given regarding benchmarking, choosing a session container, caching results of expensive computations, optimizing database queries and working effectively with view helpers.

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