Monthly Archives: April 2011

idle power draw of modern Opteron CPUs

Posted on April 5, 2011 by ward

I’ve been curious for a while about how much power Opteron CPUs draw when idle, so I set aside a bit of time to do some measurements. I used a Supermicro 1U system with redundant power supply. The motherboard model … Continue reading →

Posted in Environment, Sysadmin | 3 Comments

acts_as_paranoid and acts_as_versioned on Rails 3

Posted on April 1, 2011 by ward

A few years ago, I described how to combine acts_as_paranoid and acts_as_versioned in order to make deleted records end up in your versioning tables. In order to do the same thing under Rails 3, I had to make a few … Continue reading →

Posted in Rails | 1 Comment