Xaekai

/*
**
**  Example of Interprocess communication in Node.js through a UNIX domain socket
**
**  Usage:
**   server>  MODE=server node ipc.example.js
**   client>  MODE=client node ipc.example.js
**
*/

chronossc

dev-pi install howto

This guide follow instructions in the devpi quickstart server guide. We will install in own user home using virtualenvs, than, will setup a nginx instance. Server used here is Ubuntu Server 12.04 LTS in one virtualbox instance.

Create devpi user

root ~ # useradd -m -U -s /bin/bash devpi
root ~ # passwd devpi

jboner

Latency Comparison Numbers (~2012)
----------------------------------
L1 cache reference                           0.5 ns
Branch mispredict                            5   ns
L2 cache reference                           7   ns                      14x L1 cache
Mutex lock/unlock                           25   ns
Main memory reference                      100   ns                      20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy             3,000   ns        3 us
Send 1K bytes over 1 Gbps network       10,000   ns       10 us
Read 4K randomly from SSD*             150,000   ns      150 us          ~1GB/sec SSD