The PI chain walk is implemented by the function rt_mutex_adjust_prio_chain. The implementation has gone through several iterations, and has ended up with what we believe is the best. It walks the PI chain by only grabbing at most two locks
State machines and circuits
The cross coupled latch is one of the greatest inventions of the 20th century State machine models of timing and circuit design
Public spirit of programmers
It’s sad to note that while Doctors/engineers/journalists/even-lawyers without borders are all organizations of people who help less developed nations, “programmers/software/etc” without borders refers to outsourcing.
Bias in academic reviewing
EURYI applications were first submitted to the relevant national research councils, who could nominate a specific number of candidates. This selection cut the proportion of women from one-quarter to one-fifth. Each national research council oversaw a drop in the number
Computer Science as a failed discipline
I write an email to a CS Prof. asking if they have any followup work on some nice OS measurement research they published a couple of years back. The response is that there is no followup and then: Me: Too
Amory Lovins on smart engineering
Data centers show up around minute 24. [youtube=http://www.youtube.com/watch?v=28RmpedUYLk&w=425&h=344]
Security for dummies – a lesson for smart grid
WASHINGTON — Militants in Iraq have used $26 off-the-shelf software to intercept live video feeds from U.S. Predator drones, potentially providing them with information they need to evade or monitor U.S. military operations. Senior defense and intelligence officials said Iranian-backed
Fake Steve Jobs: “Then I hung up”
I stopped, then. There was nothing on the line. Silence. I said, Randall? He goes, Yeah, I’m here. I said, Does any of that make sense? He says, Yeah, but we’re still not going to do it. See, when you
Green energy and smart devices
We’re starting to see a confluence between IT and energy that will change both industries. A windmill power data center is an interesting data point. At some time, we’re going to want to control the energy generation from the data
the elusive open source business model
In some cases, dominant technology companies have used open-source projects as pawns. Google, for example, has needled Microsoft by providing financial support to the nonprofit Mozilla Foundation, which oversees of the development of Firefox. I.B.M. has been a major backer