* is Unix

    *  The Mottos Say It All
    * The Learning Curve and The Community
    * What JavaScript Is Good For
          o More Than Just The DOM
          o Inheritance with JavaScript
          o Self Reference
    * MooTools Makes JavaScript Itself More Fun
    * jQuery Makes the DOM More Fun
    * Anything You Can Do I Can Do Better
    * MooTools Let's You Have It Your Way
    * Chaining as a Design Pattern
    * Reusing Code with jQuery
    * Reusing Code with MooTools
          o MooTools and Inheritance
          o Extending and Implementing Classes
    * Decision Time
    * Discussion

There are many opinions in the air about the impact that virtualization has on performance, so I thought a short blog would be good to explain (as best I can) virtual machine performance characteristics with pointers to relevant benchmarks and technical papers.

My background is that I was an early Product Manager working on VMware ESX Server (from version 1.5) and among other things ran product management for VMware for a few years. As a product management guy, I kept track of the output of the engineering performance group, and as a result had a reasonable high level (although never code level) understanding of the whys and wherefores of virtualization performance. Although I’m not as fresh on virtualization as I once was, I’ll try to do my best here. I also want to thank Steve Herrod at VMware, and Simon Crosby at Citrix for providing a technical sanity check on the blog contents, although I retain responsibility for any mistakes and oversights.

After a few minutes of poking around, I was able to compile this to Java and then run it on the Android Emulator:

Tagged by mshook under scheme, android, javascript, compiler, lisp, java, mobile, example, code, interesting, ]]> Thu, 01 Oct 2009 04:40:00 -0400 (defprocess root (fuzziness) (defvariable blobs #’union) (always (when (eq (read-sensor ’image) ’black) (subprocess (measure-blob) :gradient fuzziness) (setf blobs (list (get-from-sub (measure-blob) blob))))) (avoid (read-sensor ’query) (let ((q (first (read-sensor ’query)))) (cond ((eq q ’blobs) (actuate ’response (regional blobs))) ((eq q ’area) (actuate ’response (fold #’+ (mapcar #’second (regional blobs))))))))) (defprocess measure-blob () (defvariable uid #’max :atomic :base 0 :init (random 1)) (defvariable area #’sum :reduction :base 0 :init 1) (defvariable blob :local) (always (setf blob (list uid area))))

Code to find a set of fuzzy blobs and their areas in a binary image. Each contiguous black area of the image runs a connected measure-blob pro- cess that names it and calculates its area. The set of blobs is collected by the root process and made accessible to the user on the response actuator...

Coupling a utilitarian code editor with all the basic necessities of an FTP application, OneFileCMS can maintain a whole website completely in-browser without any external programs. Screenshots

    * Validating, semantic, and commented markup. Tested in FF, Safari, and IE7/IE8.
    * Small footprint (20.4 kb)
    * Possibly the easiest installation process ever
    * All the basic features of an FTP application like renaming, deleting, copying, and uploading
uploads/deletions, you're going to want to break out an actual FTP program.)
    * Gracefully degrading CSS and Javascript
    * 100% re-brandable with page title stored in variable and a modifiable filename
Requirements

    * UNIX/Linux host, Apache
    * PHP5 (PHP4 untested)
    * File permission privileges

Sections:

    * Rabbit

    * XBee

    * vs 6LoWPAN

    * 802.15.4

    * Other

    * Google searches

    * Texas Instruments

    * Atmel

    * iDigi

    * Commissioning

    * History

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    * Smart Energy

    * Open Source Code

    * Miscellaneous

    * The End

//dirt cheap wireless TX
//generates 38kHz carrier wave on pin 9 and 10
//sends data via TX every 500ms
void setup()
{
  pinMode(9, OUTPUT);
  pinMode(10, OUTPUT);

  // Clear Timer on Compare Match (CTC) Mode
  bitWrite(TCCR1A, WGM10, 0);
  bitWrite(TCCR1A, WGM11, 0);
  bitWrite(TCCR1B, WGM12, 1);
  bitWrite(TCCR1B, WGM13, 0);

  // Toggle OC1A and OC1B on Compare Match.
  bitWrite(TCCR1A, COM1A0, 1);
  bitWrite(TCCR1A, COM1A1, 0);
  bitWrite(TCCR1A, COM1B0, 1);
  bitWrite(TCCR1A, COM1B1, 0);

  // No prescaling
  bitWrite(TCCR1B, CS10, 1);
  bitWrite(TCCR1B, CS11, 0);
  bitWrite(TCCR1B, CS12, 0);

  OCR1A = 210;
  OCR1B = 210;

  Serial.begin(2400);
}

void loop()
{
  Serial.println("testing testing testing");
  delay(500);
}