Java Memory Model and Optimisation

Many developers of multi-threaded code are familiar with the idea that
different threads can have a different view of a value they are holding,
this not the only reason a thread might not see a change if it is not
made thread safe.  The JIT itself can play a part.

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Many developers of multi-threaded code are familiar with...

Infinispan Memory Overhead

Have you ever wondered how much Java heap memory is actually consumed
when data is stored in Infinispan cache? Let's look at some numbers
obtained through real measurement.

The strategy was the following:

1) Start Infinispan server in local mode (only one server instance, eviction disabled)
Keep calling full garbage collection (via JMX or directly via
System.gc() when Infinispan is...


Цейтраферная съемка в движении / time-lapse photography in motion Москва/Россия (Moscow/Russia)
Июнь, сентябрь и октябрь 2011 г. 4 дня съемок. Canon 5D Mark II
Canon 60D
tokina 11-16mm/2.8
sigma 24mm/1.8
canon 50mm/1.4
canon 70-200mm/4lis
NDx16, NDx1000, NDx2000, c-pl  read more »

The Stars as Viewed from the International Space Station.

Timelapse videos depicting the stars from low earth orbit, as viewed from the International Space Station. Images edited using Adobe Lightroom with some cropping to make the stars the focal point of each shot, and with manipulation of the contrast to bring out the stars a bit more. The video plays best if you let it load a bit first.  read more »

Yosemite HD

This video is a collaboration between Sheldon Neill and Colin Delehanty. All timelapses were shot on the Canon 5D Mark II with a variety of Canon L and Zeiss CP.2 Lenses.  read more »

Current vs Recent Bear Markets Graph

A graph comparing the current bear market to three recent ones (updated every market day).

DOW Crash of 1929 - 1932
1973 Oil Crisis (S&P) from 1973 - 1974
Tech Crash (S&P) of 2000 - 2002
Current Bear (S&P) starting from 10/9/2007 - TBD

Contributing factors of current bear include bursting real-estate bubble, global credit crisis, fundamental decline in consumption, corporate and personal debt reduction and increased trends towards saving, and general economic recession.

Financial Crisis Plain Talk

John Bird and John Fortune describe the mindset of the investment banking community in this satirical interview back in August 2007 which appears to have become prescient in light of the current September 2008 bailout plan and the fear mongering used to ram it through congress.  read more »

Pollyanna Creep

The inflation rate has been at a relatively flat level. How is this possible when we had a housing boom and subsequent bust, gas prices are near record levels and there is a world-wide food crisis? Perhaps this is because the formula used to derive these stats are open to manipulation.  read more »

A is for Allah

The full version of 'A is for Allah', as written by Yusuf Islam and performed by Zain Bhika, is available online. A Youtuber set the song to a decent slideshow.  read more »