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  Use of Erlang in WhatsApp

After many years, people are still discussing whether Erlang is a small language. People have all sorts of doubt about it, but with the appearance of WhatsApp, we may change our mind.What is WhatsApp, from its official website:WhatsApp Messenger is a cross-platform mobile messaging app which allows you to exchange messages without having to pay for SMS.The more funny thing is the main developer of WhatsApp Rick Reed worked in Yahoo and SGI before he joined WhatsApp and he didn't have any knowledge about Erlang at that time:Joined WhatsApp in 2011,New to ErlangLater in another article:Join...

52,485 0       ARCHITECTURE ERLANG WHATSAPP


  ARM adopts 64-bit architecture

ARM has disclosed technical details about its new v8 architecture - the first to include a 64-bit instruction set - at ARM TechCon 2011 in Santa Clara, California.The next-gen architecture will expand the reach of ARM processors in the consumer and enterprise markets where extended virtual addressing and 64-bit data processing are required.According to ARM CTO Mike Muller, ARMv8 architecture consists of two main execution states: AArch64 and AArch32. 

The AArch64 execution state introduces a new instruction set, A64 for 64-bit processing, while the AArch32 state supports the exist...

3,193 0       64 BIT ARCHITECTURE ARM PROCESSOR V8 NVIDIA


  Some Thoughts on Twitter's Availability Problems

As a regular user of Twitter I've felt the waves of frustration wash over me these past couple of weeks as the service has been hit by one outage after another. This led me to start pondering the problem space [especially as it relates to what I'm currently working on at work] and deduce that the service must have some serious architectural flaws which have nothing to do with the reason usually thrown about by non-technical pundits (i.e. Ruby on Rails is to blame). Some of my suspicions were confirmed by a recent post on the Twitter developer blog entitled  Twittering about architecture...

2,041 0       TWITTER ARCHITECTURE AVAILABILITY DESIGN