“Rails 3.0 has been underway for a good two years, so it’s with immense pleasure that we can declare it’s finally here. We’ve brought the work of more than 1,600 contributors together to make everything better, faster, cleaner, and more beautiful.”
Riding Rails: Rails 3.0: It’s ready!
Slashdot Games Story | id Software Demos Rage On iPhone, Releases Source Code For Two Games
“Kotaku has posted their liveblog of the QuakeCon 2010 keynote, with some big announcements by game developer and Slashdot regular John Carmack. Highlights include a video of the id Tech 5 engine (aka Rage) running on the iPhone 4G at 60fps, with claims that it also runs on the iPhone 3GS.
Another hilarious quote from John Carmack was
“The game would have been more enjoyable if people could actually see it.” – Carmack on Doom 3
If you are interested read through the liveblog from the QuakeCon 2010 keynote. Carmack sure has some strong opinions sometimes!
How can it be easier to change the java code I’m trying to execute as part of the generate goal to create the output directory than to make Maven create the directory for me?
I understand that Maven is conceptually totally different compared to Makefiles and Ant but still, I just want to create a directory. How hard can it be?
Sometimes Maven is such a pain.
I’m super impressed with JetBrains!
15 minutes after I wrote the blog post about the IntelliJ IDEA bug I found yesterday which automatically got written to my twitter account as well, Anton Makeev an IntelliJ IDEA Developer replies on twitter that he has created a bug report for the problem.
So now it’s possible to track the status of the bug here: http://youtrack.jetbrains.net/issue/IDEA-53257
Alternative 1
Alternative 2
Me and javac think the two code snippets above are both valid and pretty much same. Funnily IntelliJ IDEA disagrees.
But it’s OK, I still think it’s the best Java IDE available.
The latest MacRuby with HotCocoa is amazing! Finally a way to write OS X applications without having to learn Objective-C.
require 'rubygems'
require 'hotcocoa'
include HotCocoa
application do |app|
win = window :size => [100,50]
b = button :title => 'Hello'
b.on_action { puts 'World!' }
win << b
end
“Facebook said the results of using HipHop have been dramatic. CPU usage on Facebook servers has dropped by an average of 50 percent as the HipHop PHP engine reduced the load on Facebook’s infrastructure.”
Facebook’s HipHop Goes Public With a New PHP Runtime — Developer.com
The article isn’t that detailed but from the following quote:
“This is not an extension to PHP — this is pretty different,” Recordon said. “Right now, the process is once you build and compile HipHop, it comes with a tool that will go through the transformation process and output the binary, and that’s what you actually use to run it.”
And the fact that they’ve removed Apache and uses an own web server. I start to wonder if what they do is actually take the PHP source code and compile it to get one binary that is both the web server and the application in one.
PHP is an interpreted script language so what normally happens is that PHP takes the source file and reads it line by line as it’s executing it. If they’ve bypassed this step completely by pre-compiling the script file into machine code that would explain the reduced CPU usage.
“One reason programmers dislike meetings so much is that they’re on a different type of schedule from other people. Meetings cost them more.”
Maker’s Schedule, Manager’s Schedule
A good article by Paul Graham.
Don’t disturb your programmers!
This video shows “Snow Stack”, a 3D CSS Visual Effects demo built with HTML, CSS Effects and JavaScript in the latest WebKit nightly on Mac OS X Leopard and Snow Leopard. You can try this out yourself by reading the details on www.satine.org.
Wow! This is mad impressive! And if it’s true that the graphics card is doing most of the work and the CPU is hardly loaded at all, it is borderline crazy!
Det har varit långsamt att visa vissa sidor på ny.heter.se. Förra veckan så tittade jag i MySQLs loggfil för långsamma frågor och insåg att det är på grund av att jag gör uppslagningar med WHERE IN, ORDER BY och LIMIT begränsningar.
Dessa urvalskriterier medförde att MySQL inte kunde använda något av de tabellindex som finns utan fick göra en långsam filsortering för att få fram det slutgiltiga resultatet. Efter en del googling så hittade jag sidan Mysql query optimization for ORDER BY.. LIMIT queries där ett förslag var att prova med att förenkla databasfrågorna och göra sorteringen i den anropande koden istället.
Jag provade detta och resultatet är en otrolig prestandaförbättring! Att det dessutom är mer troligt att de cachade resultaten för de mindre databasfrågorna kommer att kunna återanvändas är ytterligare en vinst.
Så njut av snabbare svarstider på ny.heter.se, det enklaste sättet att läsa nyheter på!