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Al Tobey
184 followers -
Jack of all trades, master of a few.
Jack of all trades, master of a few.

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I've been messing around with isolcpus on my Linux workstation and made a small post explaining what it does at a high level.

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Here's a quick video in which I try to explain how #shellshock interacts with system() and sh -c.

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The last few days have been anxiety. For a change, almost none of it is family or work related. This round is courtesy of a lump I found on my left testicle last Friday. Normally I wouldn't freak out but I also seem to have developed a freckle above the iris on my right eye. So I made an appointment with my eye doctor and my general doctor that day.

Eye guy says it's just a freckle.

Internal medicine guy (my doc's specialty) found two lumps. Says it's fine but ordered an ultrasound to be sure.

So here I am, waiting for the ultrasound with two expert opinions that say there's nothing to worry about and I keep wondering what life without lefty would be like. Weird.

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Music majors only had to take a single algebra class for the degree I was after, so that's all I took. Many of us working in tech share such a story. Unless you went above and beyond typical math requirements, you will understand why I'm excited about +Paco Nathan 's Just Enough Math.

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I wrote a tool for Linux called `pcstat` that I think a lot of my friends will find useful. It uses the mincore(2) syscall to inspect which pages of a file or files are being cached by the Linux kernel. Please take a look and tell your friends. This has been a missing piece of the Linux performance toolset for far too long.

https://github.com/tobert/pcstat

One of my colleagues from Datastax wrote a nice blog post about how to use it with Cassandra.

http://informationsurvival.blogspot.com/2014/05/measuring-page-cache-utilization-in.html

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