evanjones.ca
Finding the Four Month Bug: A debugging story (evanjones.ca)
http://www.evanjones.ca/jvm-mmap-pause-finding.html
Finding the Four Month Bug: A debugging story. Which I hope is an interesting case study in how to debug hard problems. TL;DR:. I noticed the problem was common on a system with a magnetic disk, but rare on a system with a flash disk. My process didn't do any file I/O, so inspecting the JVM showed the only writable file it had was the hsperfdata statistics file. Around November of last year, a service I help maintain at Twitter had one or two instances a day garbage collect for 6-7. Twitter New York's JV...
looksgoodworkswell.blogspot.com
Looks Good Works Well: Indispensable Principles for Debugging - Book Recommendation
http://looksgoodworkswell.blogspot.com/2012/12/indispensable-principles-for-debugging.html
NOTE: This blog has been moved to http:/ www.looksgoodworkswell.com. Looks Good Works Well. Thoughts on experience design and engineering. Sunday, December 16, 2012. Indispensable Principles for Debugging - Book Recommendation. Don't judge a book. Especially true in this situation. David Agan's book " Debugging: The 9 Indispensable Rules for Finding Even the Most Elusive Software and Hardware Problems. For his funny comment on why he sticks by his comic sans guns). What it is not. I also like this book b...
randomelectrons.com
The Rules of Debugging | Random Electrons
https://www.randomelectrons.com/the-rules-of-debugging
The Rules of Debugging. As a Farmboy, an Electronics Engineering Technologist and an Electrical Engineer, I’ve been debugging things almost my entire life. It now seems like it is a way of life! I can recall many times having this internal conversation:. What is wrong with this thing? What’s it supposed to do? Why isn’t it do that now? So now, in the spirit of sharing knowledge, here is a list of debugging rules ( as compiled by David Agans. Quit thinking and loo. Change one thing at a time. March 9, 2016.
johnrleeman.com
Computing | John R. Leeman
http://www.johnrleeman.com/category/computing
John R. Leeman. Scientist by day, engineer by night, coder by birth…mad scientist at large. Decatur, AR Wx Station. Think Different - Upgrading a "Sad" iMac. March 31, 2016. During the spring announcements, Apple executive Phil Schiller said that about 600 million people are using computers over five years old and said "This is really sad." The comment made a lot of folks angry. I still use the monitor daily and love it. The MacBook Pro did the majority of my computing, until late 2013 - wait what? Weigh...
looksgoodworkswell.com
Looks Good, Works Well - Page 2
http://www.looksgoodworkswell.com/page/2
Looks Good, Works Well. Thoughts on bringing design to life. My First Hour of Code. During the week of Dec 9-15th over a half billion lines of code were written. For the hour of code initiative by over 20 million people. This got me reflecting on my own original "hour of code". It was a seminal moment in my life. I had never seen a real computer before this point in my life, much less ever programmed one. But one moment during my "hour of code" opened my eyes to the wonders of programming and. Key Positi...
looksgoodworkswell.blogspot.com
Looks Good Works Well: December 2012
http://looksgoodworkswell.blogspot.com/2012_12_01_archive.html
NOTE: This blog has been moved to http:/ www.looksgoodworkswell.com. Looks Good Works Well. Thoughts on experience design and engineering. Sunday, December 16, 2012. Indispensable Principles for Debugging - Book Recommendation. Don't judge a book. Especially true in this situation. David Agan's book " Debugging: The 9 Indispensable Rules for Finding Even the Most Elusive Software and Hardware Problems. For his funny comment on why he sticks by his comic sans guns). What it is not. I also like this book b...
johnrleeman.com
John R. Leeman | Scientist by day, engineer by night, coder by birth…mad scientist at large | Page 2
http://www.johnrleeman.com/page/2
John R. Leeman. Scientist by day, engineer by night, coder by birth…mad scientist at large. Decatur, AR Wx Station. Newer posts →. 3D Filament and Humidity - Why My Prints Keep Failing. December 28, 2015. Awhile back I talked about some weird issues with my 3D printer filament being damaged by UV radiation from the sun. I'm back with more stories of 3D printing though and my current attempt at solving the issue. I still was getting "bubbly" prints though. Once I verified that this solution might work, I ...
johnrleeman.com
Electronics | John R. Leeman
http://www.johnrleeman.com/category/electronics-2
John R. Leeman. Scientist by day, engineer by night, coder by birth…mad scientist at large. Decatur, AR Wx Station. KiCad and TextExpander - How I saved a few hours of BOM making. July 31, 2016. Folks that follow my various projects have probably noticed that I've recently formed an instrumentation and consulting company. While designing my printed circuit boards for one of these projects. By Dan over at Rheingold Heavy. Cheerson CX-10 Motor Repair. June 8, 2016. If you've been following my drone work th...
johnrleeman.com
Education Opportunity | John R. Leeman
http://www.johnrleeman.com/category/education-opportunity
John R. Leeman. Scientist by day, engineer by night, coder by birth…mad scientist at large. Decatur, AR Wx Station. Category Archives: Education Opportunity. May 15, 2016. Things have been a bit slow here at the blog with a lot of things happening at work and the fact that I'm not also very excited to be writing a monthly column about multi-rotors in. Not to worry though, I've still got some excellent projects queued up for the blog, including one that has currently filled my living room with sawdust.
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