Tags: velocity08
Tags: velocity08
Velocity 08: Some Tools for Improving Web Performance
Posted Wednesday June 25, 2008, 12:34 am, Over one day old at Phil Windley's Technometria
Firebug for Firefox, of course, remains free. You can also point a browser on another machine at the proxy running on your PC. You can also use it to monitor outgoing traffic for funny programs phoning home. Firebug is a Firefox extension that is used for measuring and debugging Web sites.
Read Velocity 08: Some Tools for Improving Web Performance (Links)
Velocity 08: Storage at Scale
Posted Wednesday June 25, 2008, 12:34 am, Over one day old at Phil Windley's Technometria
The Google File System (GFS) is a cluster file system with a familiar interface, but not POSIX compliant. The master also handles machine failures. Tables are broken into tablets. The systems need to be more and more automated. The number of systems is growing faster than Google can hire.
Read Velocity 08: Storage at Scale (Links)
Velocity 08: Puppet In-Depth and Hands-On
Posted Wednesday June 25, 2008, 12:34 am, Over one day old at Phil Windley's Technometria
Luke makes an analogy about the transition from assembly to C and moving from commands and files to "resources." You can install, uninstall, update, etc. packages. The class provides intent; by creating a class for ssh, you're saying it should be installed and running.
Read Velocity 08: Puppet In-Depth and Hands-On (Links)
Velocity 08: Even Faster Web Sites
Posted Wednesday June 25, 2008, 12:34 am, Over one day old at Phil Windley's Technometria
80-90% of the end user response time is spent on the front end of the page load experience, so start there. The next rule: avoid script blocking. Most of these require some refactoring of the JavaScript code because you're downloading and then using a technique to eval what got downloaded.
Read Velocity 08: Even Faster Web Sites (Links)
Velocity 08: Jiffy: Instrumenting and Measuring Web Performance
Posted Tuesday June 24, 2008, 12:33 am, Over one day old at Phil Windley's Technometria
Jiffy provides real data about performance that is more complete and more fine grained than what you might get from Keynote or Gomez. Jiffy has four goals: You can set a mark and then make any number of measurements of how much time has elapsed from the mark.
Read Velocity 08: Jiffy: Instrumenting and Measuring Web Performance (Links)
Velocity 08: High Performance AJAX Applications
Posted Tuesday June 24, 2008, 12:33 am, Over one day old at Phil Windley's Technometria
Minify CSS and Javascript files. You can also combine the CSS and JAvascript files. Loading and parsing HTML, CSS, and JavaScript code is costly. Load assets (even images) on demands. In JavaScript a lookup is done each time a variable is accessed. Avoid using JavaScript for layout.
Read Velocity 08: High Performance AJAX Applications (Links)
Velocity 08: Actionable Logs
Posted Tuesday June 24, 2008, 12:33 am, Over one day old at Phil Windley's Technometria
Read Velocity 08: Actionable Logs (Links)
Velocity 08: Energy Efficient Operations
Posted Tuesday June 24, 2008, 12:33 am, Over one day old at Phil Windley's Technometria
Read Velocity 08: Energy Efficient Operations (Links)
EUCALYPTUS - Elastic Utility Computing Architecture for Linking Your Programs To Useful Systems
Posted Tuesday June 24, 2008, 12:33 am, Over one day old at Phil Windley's Technometria
Read EUCALYPTUS - Elastic Utility Computing Architecture for Linking Your Programs To Useful Systems (Links)
Velocity Keynote: IT Operations are Unsustainable
Posted Monday June 23, 2008, 12:33 am, Over one day old at Phil Windley's Technometria
In some organizations it can take 6 months to get a new server into the data center. Today we have Cloud 1.0. Soon those tools will be more sophisticated, but still be proprietary. Bill talks about a major corporation with 15,000 virtual machines and they still only get 20% utilization.
Read Velocity Keynote: IT Operations are Unsustainable (Links)