| require 'rubygems' | |
| require 'dm-core' | |
| require 'spec' | |
| require 'dm_redis_adapter' | |
| require 'dm-validations' | |
| DataMapper::Logger.new(STDOUT, :debug) | |
| DataMapper.setup(:default, {:adapter => "redis"}) | |
| # Loads the file config/settings/shared.yml and merges it with config/settings/ENV['SILP_CLOUD'].yml. | |
| # If ENV['SILP_CLOUD'] is not set, local.yml will be loaded as fallback. | |
| class Settings | |
| include Singleton | |
| def self.init!(silp_cloud, rails_env) | |
| rails_root = File.join(File.dirname(__FILE__), '..') |
This script installs a patched version of ruby 1.9.3-p194 with boot-time performance improvements (#66 and #68), and runtime performance improvements (#83 and #84). It also includes the new backported GC from ruby-trunk.
Many thanks to funny-falcon for the performance patches.
| express = require \express | |
| app = express! | |
| ..set \views, "#__dirname/../views" | |
| ..use express.static "#__dirname/../pub" | |
| app.get '/', (req, res) -> | |
| res.render 'index.jade' | |
| app.listen 3001 |
| require 'cherti/all' | |
| include Cherti | |
| def create_ad_url_override(user_id, ad_url, lang='ad') | |
| device_types = ['mobile', 'tablet', 'pc'] | |
| device_types.each do |dt| | |
| AdUrl.find_or_create(:auth_provider => User[user_id].auth_provider, :device_type => dt, :lang => lang, :url => ad_url) | |
| end | |
| end |
| Producer | |
| Setup | |
| bin/kafka-topics.sh --zookeeper esv4-hcl197.grid.linkedin.com:2181 --create --topic test-rep-one --partitions 6 --replication-factor 1 | |
| bin/kafka-topics.sh --zookeeper esv4-hcl197.grid.linkedin.com:2181 --create --topic test --partitions 6 --replication-factor 3 | |
| Single thread, no replication | |
| bin/kafka-run-class.sh org.apache.kafka.clients.tools.ProducerPerformance test7 50000000 100 -1 acks=1 bootstrap.servers=esv4-hcl198.grid.linkedin.com:9092 buffer.memory=67108864 batch.size=8196 |
| # Basic Strongswan ikev2 server setup | |
| * paltform: atlantic.net ubuntu 14.04 x64 | |
| * the commands below are run with root account | |
| ## Strongswan | |
| ``` | |
| apt-get install strongswan | |
| apt-get install iptables iptables-persistent | |
| ``` |
| """ | |
| Simple Linear Probabilistic Counters | |
| Credit for idea goes to: | |
| http://highscalability.com/blog/2012/4/5/big-data-counting-how-to-count-a-billion-distinct-objects-us.html | |
| http://highlyscalable.wordpress.com/2012/05/01/probabilistic-structures-web-analytics-data-mining/ | |
| Installation: | |
| pip install smhasher | |
| pip install bitarray |
A quick guide to write a very very simple "ECHO" style module to redis and load it. It's not really useful of course, but the idea is to illustrate how little boilerplate it takes.
Step 1: open your favorite editor and write/paste the following code in a file called module.c
#include "redismodule.h"
/* ECHO <string> - Echo back a string sent from the client */
int EchoCommand(RedisModuleCtx *ctx, RedisModuleString **argv, int argc) {
| #!/bin/bash | |
| tmp=$(mktemp -d) | |
| pushd "$tmp" | |
| iso=/Users/lloeki/Downloads/archlinux-2015.08.01-dual.iso | |
| echo "fixing disk" | |
| dd if=/dev/zero bs=2k count=1 of=tmp.iso | |
| dd if=$iso bs=2k skip=1 >> tmp.iso | |
| echo "mounting disk" |