sysctl -w fs.file-max=12000500
sysctl -w fs.nr_open=20000500
# Set the maximum number of open file descriptors
ulimit -n 20000000
# Set the memory size for TCP with minimum, default and maximum thresholds
sysctl -w net.ipv4.tcp_mem='10000000 10000000 10000000'
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# Configuration file for runtime kernel parameters. | |
# See sysctl.conf(5) for more information. | |
# See also http://www.nateware.com/linux-network-tuning-for-2013.html for | |
# an explanation about some of these parameters, and instructions for | |
# a few other tweaks outside this file. | |
# | |
# See also: https://gist.github.com/kgriffs/4027835 | |
# | |
# Assumes a beefy machine with lots of network bandwidth |
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/* | |
******************************************************************************** | |
Golang - Asterisk and Ampersand Cheatsheet | |
******************************************************************************** | |
Also available at: https://play.golang.org/p/lNpnS9j1ma | |
Allowed: | |
-------- | |
p := Person{"Steve", 28} stores the value |
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var http = require('http'); | |
var router = require('routes')(); | |
var Busboy = require('busboy'); | |
var AWS = require('aws-sdk'); | |
var inspect = require('util').inspect; | |
var port = 5000; | |
// Define s3-upload-stream with S3 credentials. | |
var s3Stream = require('s3-upload-stream')(new AWS.S3({ | |
accessKeyId: '', |
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// node: v0.10.21 | |
// request: 2.27.0 | |
var request = require('request'); | |
var fs = require('fs'); | |
var r = request.post("http://server.com:3000/"); | |
// See http://nodejs.org/api/stream.html#stream_new_stream_readable_options | |
// for more information about the highWaterMark | |
// Basically, this will make the stream emit smaller chunks of data (ie. more precise upload state) | |
var upload = fs.createReadStream('f.jpg', { highWaterMark: 500 }); |
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// __tests__/example.js | |
jest.mock('fs'); | |
it('should serve as a nice example', () => { | |
const fs = require('fs') | |
// fs can be set up at any point by calling __configureFs. | |
fs.__configureFs({ | |
'/test': { |
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function toUTF8Array(str) { | |
var utf8 = []; | |
for (var i=0; i < str.length; i++) { | |
var charcode = str.charCodeAt(i); | |
if (charcode < 0x80) utf8.push(charcode); | |
else if (charcode < 0x800) { | |
utf8.push(0xc0 | (charcode >> 6), | |
0x80 | (charcode & 0x3f)); | |
} | |
else if (charcode < 0xd800 || charcode >= 0xe000) { |
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function toUTF8Array(str) { | |
var utf8 = []; | |
for (var i=0; i < str.length; i++) { | |
var charcode = str.charCodeAt(i); | |
if (charcode < 0x80) utf8.push(charcode); | |
else if (charcode < 0x800) { | |
utf8.push(0xc0 | (charcode >> 6), | |
0x80 | (charcode & 0x3f)); | |
} | |
else if (charcode < 0xd800 || charcode >= 0xe000) { |
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#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
# Log Reader - polls log file and sends new lines to channel | |
#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
defmodule LogReader do | |
use GenServer | |
@log_file "priv/some_log.log" | |
@poll_interval 5 * 1000 # 5 seconds | |
def run_test() do |
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# Redis Cheatsheet | |
# All the commands you need to know | |
redis-server /path/redis.conf # start redis with the related configuration file | |
redis-cli # opens a redis prompt | |
# Strings. |
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