Sergey Chernyshev

O’Reilly Velocity OnLine Conference is scheduled for March 17 and Steve Souders was kind enough to invite me to give a talk titled “Keeping Track of Your Performance Using Show Slow“. Here’s more information about the conference: The next O’Reilly Velocity Online Conference happens March 17. This FREE two hour, interactive online conference will give…

Custom Metric Beacon allows every instance of ShowSlow to configure metrics it wants to record in addition to YSlow and PageSpeed ranking. Once metric beacon is configured, simple GET/POST requests can be sent to the beacon with some numeric value which gets recorded and displayed over time on a graph. You can also click on…

Last week I gave a talk at joint NYC- and NY Web Performance Group event at Sun Microsystems offices! It was very nice to see so many people interested in Google’s new performance initiative, I think many were excited and couldn’t wait to try speeding up their sites. I posted my presentation to TechPresentations here:…

A few people on the list asked me how to automate Show Slow monitoring and dug up all the magic I used on my monitoring farm and try to summarize it here: Here are a few steps you’d want to follow: Set up separate browser profiles – one for Google Page Speed and one for…

I decided to extend Google Page Speed support in Show Slow to keep track of metrics the same way it’s done for YSlow. You can see results at showslow.com – here’s example with Page Speed results only: http://www.showslow.com/details/?url=http://start.ubuntu.com/8.04/ And here’s the example for both Page Speed and YSlow together: http://www.showslow.com/details/?url=http://www.mozilla.com/en-US/ Version 0.3 is released and…

I’m working on HowDoable for a few months already and it’s been a fun ride and main challenge is to go towards the goal. I’m using Pivotal tracker for my agile needs and i have a long backlog which I’m adding to more stuff over time, rearranging the list and so on. What I noticed…

Steve Souders wrote a post about people mispronouncing his name. Obviously, I’m an emigrant which makes it different, but in my case people usually can’t finish pronouncing my last name and stumble somewhere in the middle ;) I even thought about borrowing a nickname from Ernesto Guevara, so it’s easier to remember like Sergey “Che”…

Google PageSpeed 1.2 is now able to send data to a beacon (see bug #58) so I added some minimal support for it into ShowSlow that you can get from the trunk. Support is minimal and I only display PageSpeed’s overall rank and page load time (which looks like only initial request load) and it…

In early July, Mozilla team released a new project similar to ShowSlow in it’s concept, it’s called Cesium – their goal is to help people monitor what’s going on with their performance. Ryan Doherty who’s running the project and I agreed to join forces to the degree possible and started to work with YSlow on…

I’m done with my copy of Even Faster Web Sites. It’s definitely a book worth reading if you’re well into web performance optimization and want to step even further when all simpler optimizations don’t bring any more improvements. JavaScript sections from Ajaxians and Nicholas Zakas are quite interesting but definitely for most complex 2.0 apps…