Node.JS

8,000+ lines C/C++

2,000+ lines JavaScript

Built on top of the Google V8 VM

I/O Latency:

L1 - 3 cycles

L2 - 14 cycles

RAM - 250 cycles

Disk - 41,000,000

Network - 240,000,000

Source:  Ryan Dahl 2008

Route Request

Database Wait

Process Results

Respond

Text

Threads?

Costs CPU Time & Memory

Internal Thread Pools and Async I/O

Handle CPU Bound Operations

Event Loop

Event Queue

I/O Stuff

Blah, Blah, Blah - Show me something

1. Async I/O (Nesting) - async
2. Debugging - node inspector
3. Single Thread - No CPU Intensive stuff
4. Short Stack Trace
5. Rapid Releases?

Challenges