My updates have been slow recently due to other things I’m involved in. If you need more updates around what I’m reading, please feel free to follow me on twitter or buzz. Here are some of the big ones I have mentioned on my twitter/buzz feeds. Tools: Real-time Relationship Analytics from large scale graph processing [...]

If you have read this blog before, you know how much I admire those who use continuous deployments in production. Doing that at scale is even more impressive. But the message which gets lost sometimes is that Continuous deployments may not be for everyone. Most continuous integration environments usually do all of their deployments from [...]

One of the less discussed, but highly informative and very thought provoking talk during Velocity 2010 was the one about TCP, latency, window sizes and its relation to web performance. The slides to this talk by “John Rauser” can be found here. And thanks to Mike Bailey, there is a video recording as well. Follow [...]

Here are all the slides/PDFs which I’ve come across from the first 2 days at velocity, please let me know if I missed any. Links,  PDF and Docs Apache traffic server – HTTP proxy server on the edge Dont let third parties slow you down Keeping tracking of your performance using slow show Mobile web [...]

This is a summary of the talk by Arvind Jain, Michael Kleber from Google at velocityconf about how to write widgets using same domain iframe using document.write. Speed improvements of over 90% in loading widgets with this change. Web is slow Avg page load time 4.9s 44 resources, 7 dns requests, 320kb Lot of 3rd [...]

From Urs’ talk at the velocity2010 conference [ More info : Google, datacenterknowledge ] Average web page – 320kb, 44 resources, 7 dns lookups, doesn’t compress 3rd of its content Aiming for 100ms page load times for chrome Chrome: HTML5, V8 JS engine, DNS prefetching, VP8 codec, opensource, spurs competition TCP improvements Fast start (higher [...]

Summary from James’ keynote talk at Velocity 2010 Pace of Innovation – Datacenter pace of innovation is increasing.  The high focus on infrastructure innovation is driving down the cost, increasing reliability and reducing resource consumption which ultimate drives down cost. Where does the money go ? 54% on servers, 8% on networking, 21% on power [...]

This talk by Sean and Alistair is one of the talks I couldn’t attend today due to conflicts, but I’m glad the slides are already up. Performance measurement is often the starting point for most web applications and that can’t be done without understanding what goes on between the browser and the server. Metrics 101 [...]

Interesting observations/thoughts on  web operations collected from a few sessions at Velocity conference 2010 [ most are from a talk by Theo Schlossnagle, author of “Scalable internet architectures” ] Optimization Don’t over optimize. Could take away precious resources away from critical functions.  Don’t scale early. Planning for more than 10 times the load you currently [...]

Pingdom has an interesting post which lists the various components which runs facebook. “Exploring the software behind Facebook, the world’s largest site” Few interesting statistics listed Facebook serves 570 billion page views per month (according to Google Ad Planner). There are more photos on Facebook than all other photo sites combined (including sites like Flickr). [...]