igorzi

var net = require('net');

var serverConnections = 0;
var clientConnections = 0;

// Server: accept connections and set keep-alive
net.createServer(function(socket) {
  socket.setKeepAlive(true, 0);  // <-----
  serverConnections++;
  console.log(serverConnections);

jlivni

#appengine python
values = [1,2,3,4]
values = array('f',values)
response.out.write(values.tostring())

//JS loading  
var xhr = new XMLHttpRequest();
xhr.open('GET', '/path/to/file', true);
xhr.responseType = 'arraybuffer';

ranchodeluxe

--
-- PostgreSQL database dump
--

SET statement_timeout = 0;
SET client_encoding = 'UTF8';
SET standard_conforming_strings = on;
SET check_function_bodies = false;
SET client_min_messages = warning;

jedschneider

Working With Github Pages

The FAQ maintained by Github covers most stumbling blocks, some other tips and tricks supplied here.

Gitignore

Add _site to .gitignore. The generated site should not be uploaded to Github since its gets generated by github.

Working With Code Partials

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

brendangregg

Here's some more perf analysis: what was the limiter for node.js in the original fs.readFile benchmark,
causing large performance difference?

Examining thread microstates using prstat (SmartOS):

# prstat -mLcp 92432 1
Please wait...
[...]
   PID USERNAME USR SYS TRP TFL DFL LCK SLP LAT VCX ICX SCL SIG PROCESS/LWPID 
 92432 root      90  10 0.0 0.0 0.0 0.0 0.0 0.0   7   9 42K   0 node/1

tschaub

    // Execute method for js:split process expects polygon and line geometries as input
    run: function(inputs) {
        var merger = new LineMerger();
        merger.add(inputs.poly._geometry);
        merger.add(inputs.line._geometry);
        var collection = merger.getMergedLineStrings();
        var union = new UnaryUnionOp(collection).union();

        var polygonizer = new Polygonizer();
        polygonizer.add(union);

isaacs

var cluster = require('cluster')

if (cluster.isMaster) {
  // spawn worker bees
  cluster.fork()
  cluster.fork()
  cluster.fork()
  cluster.fork()
} else {
  // worker bees only need root to listen, and then downgrade

perrygeo

import numpy as np
from scipy.spatial import KDTree
from fiona import collection

def nearest_features(datasource, x, y, n=1):
    """
    datasource: The ogr datasource path
    x, y: coordinates to query for nearest
    n: number of features (default = 1 or the single nearest feature)

sethfitz

"use strict";

var fs = require("fs"),
    https = require("https"),
    url = require("url"),
    zlib = require("zlib");

/**
 * Process HTTP responses. Handle compressed streams and convert to objects as
 * appropriate.