performance

My previous post walked through four bugs in ruby-enum, a gem I maintain, all stemming from the fact that class-level instance variables aren’t inherited by subclasses. The thir...

MongoDB SERVER-24384 bit me.

Got a chance to play with Goliath for a bit. You don’t need to do much work to mount Grape behind it. Grape figures out content-negotiation and formatting for you, so just strea...

EdgeConf 2013, an invitation-mostly conference, got perfectly illustrated in that moment where a Microsoft developer argued that the reason Windows XP and IE6 were still being u...

If you’re not using NewRelic, here’s a pretty picture to convince you to try it out. And a blog post on measuring performance in Grape APIs with NewRelic RPM on the Art.sy Engin...

I had the pleasure of interviewing two New York techies, Serkan Piantino of Facebook and Ken Little of Tumblr, at QConNY a couple of months ago. We mostly discussed large scale ...

tl;dr watch the video

In the past two days we’ve had hell with our production environment. It started with a general feel of slowness followed by all kinds of alarms going off in the monitoring syste...

I upgraded my Ubuntu from 11.4 to 11.10 Oneric Oncelot … and back. I’ll try to keep it short.

We’re using Grape in our Rails app on Heroku, which comes with New Relic instrumentation out-of-the-box. Let’s get the Grape API route details to show in New Relic as well.

In a previous post I had implemented clicking through menus with White. Someone pointed out that this was a solved problem and I didn’t need to write any code.

I was profiling an application at my real job with MemProfiler. It yielded a very high number of instances in a .NET Queue<T>. What was abnormal is a constant growth of th...

I really like VMWare VIX API’s CopyFileFromGuestToHost and CopyFileFromHostToGuest. These automatically copy a single file or an entire directory tree. Easy. Unfortunately I am ...