huangsam

#!/usr/bin/env python
import sys


def pattern(n):
    """Prints n iterations of a certain pattern...guess it!"""
    old = [1]
    print("1")
    for i in range(n - 1):
        new = []

huangsam

#!/bin/bash
<<COMMENT
Author: Samuel Huang
rename.sh: change file extensions in a directory
COMMENT

path="."
interact=false
recurse=false

huangsam

Percona

• Backup and restore of MySQL to OpenStack Swift
• Incremental Backups - Percona Documentation
• mysqldump or Percona XtraBackup?
• paulczar/percona-galera

huangsam

#!/bin/bash
# lb-run.sh: Run load balancer on three app instances

# kill necessary containers
if [ "x$1" == "xkill" ] ; then
  docker rm -f etcd app1 app2 app3 proxy
  exit 0
fi

# run etcd server

huangsam

kube:
  protocol: http
  # this is a weak default. Must use KUBE_HOST to set host
  host: localhost
  # this is a weak default. Must use KUBE_PORT to set port
  port: 8080

huangsam

People

:bowtie:	😄 :smile:	😆 :laughing:
😊 :blush:	😃 :smiley:	☺️ :relaxed:
😏 :smirk:	😍 :heart_eyes:	😘 :kissing_heart:
😚 :kissing_closed_eyes:	😳 :flushed:	😌 :relieved:
😆 :satisfied:	😁 :grin:	😉 :wink:
😜 :stuck_out_tongue_winking_eye:	😝 :stuck_out_tongue_closed_eyes:	😀 :grinning:
😗 :kissing:	😙 :kissing_smiling_eyes:	😛 :stuck_out_tongue:

huangsam

// === Arrays

var [a, b] = [1, 2];
console.log(a, b);
//=> 1 2


// Use from functions, only select from pattern
var foo = () => [1, 2, 3];

huangsam

Latency Comparison Numbers
--------------------------
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

huangsam

# -*- coding: utf-8 -*-
import multiprocessing as mp
import queue
import threading


def worker(f, iq, oq):
    """Logic for a single worker thread.

    The loop terminates when it's given a None item, so ensure

huangsam

# -*- coding: utf-8 -*-
import importlib
import inspect
import pkgutil
import re


def is_match(entry, pattern):
    """Identify entry match.