Understanding of business as ZUCK does.

This is something that zuckerberg said in recent techcrunch interview.

He said,

To do great things we need great team.

To make great team we need best people.

People wanna work on what they believe in and make bunch of money.

To do that we need great business.

To have great business we need to build platform.

To build great platform we need the tools so that developer can build what they want and make bunch of money.

To do that we need a business model that works for developer.

Go for it.

Google got biased this morning

Google got just 4 results on first page for me. Above is the snapshot of it.

SEARCH ENGINE BASIC

CONTD....

search.
relevance.
display.

* no crawling and indexing.
CONTD....

Happens-Before....Java Memory Model

"Java Memory Model (JMM) defines a partial ordering called happens-before on all actions with the program. Actions are reads and writes to variables, locks and unlocks of monitors etc. To guarantee that the thread executing action B can see the results of action A, there must be happens before relationship between A and B. In the absence of happens-before ordering between two operations, the JVM is free to re-order them as it pleases (due to the fact that every processor has it's cache and it needs to flush to the main memory). A correctly synchronized program is one with no data races, correctly synchronized programs exhibits sequential consistency, meaning that all actions within the program appear to happen in a fixed, global order.

The rules for happens-before are:

Program order rule. Each action in a thread happens-before every action in that thread that comes later in the program order.
Monitor lock rule. An unlock on a monitor lock happens-before every subsequent lock on that same monitor lock.
Volatile variable rule. A write to a volatile field happens-before every subsequent read of that same field.
Thread start rule. A call to Thread.start on a thread happens-before any other rhread detects taht thread has terminated, either by successfully return from Thread.join or by Thread.isAlive returning false.
Interruption rule. A thread calling interrupt on another thread happens-before the interrupted thread detects the interrupt( either by having InterruptedException thrown, or invoking isInterrupted or interrupted).
Finalizer rule. The end of a constrcutor for an object happens-before the start of the finalizer for that obejct.
Transitivity. If A happens-before B, and B happens-before C, then A happens-before C.
"
Ref: Java Concurrency in Pratice

I tried Google News today

I tried Google News today by typing "google news" in URL bar in Google Crome. Google result shows:




Then I clicked third link "Google News - news.google.com" tab. The result was:

Broken code?

mid = (low + high)/2

mid = low + ((high-low)/2)

mid,low and high are int.

What's the difference?

context: Java, C, C++
Ideas Appreciated!

Inactive for Couple of Days

Due to large learning curve of new job, keeping myself busy with new environment and new people. Stepping ahead as a Senior Software Engineer, got more responsibility and need broader knowledge . Stopped working on Tellurium for a while.

Will be back in couple of days.

Tellurium-Reference is finally released

With the extra effort from all the team members, tellurium-reference guide is finally released. Hats-off to Jian Fang's work.

Please take a look to our effort on how this framework is changing the era of web testing.

Tellurium-Reference Guide

Further reference link:
Wiki
Google Code
Tellurium Home Page