krast

#!/bin/bash
## Fix OneDrive for Mac CPU usage
## 
## Seems this is still a problem 5 years later after I created this little gist.
## I have long since stopped using OneDrive (luckily), but according to
## comments below, I have added the new path for OfficeFileCache for macOS
## Mojave (10.14) and Catalina (10.15).

## Run this on macOS Mojave (10.14) and Catalina (10.15)
find ~/Library/Containers/ -type d -name OfficeFileCache -exec rm -r {} +

krast

Slides for Re:Invent conference

• Re:Invent 2018
• Re:Invent 2017
• Re:Invent 2016
• Re:Invent 2015
• Re:Invent 2014
• Re:Invent 2013
• Re:Invent 2012

krast

#!/bin/bash

CLEAR='\033[0m'
RED='\033[0;31m'

function usage() {
  if [ -n "$1" ]; then
    echo -e "${RED}👉 $1${CLEAR}\n";
  fi
  echo "Usage: $0 [-n number-of-people] [-s section-id] [-c cache-file]"

krast

参考链接
========

https://projectlombok.org/features/delombok
https://awhitford.github.io/lombok.maven/lombok-maven-plugin/usage.html

为什么需要查看lombok生成的源码?
===============================

主要原因有二:

krast

Basic Snake HTML Game

Snake is a fun game to make as it doesn't require a lot of code (less than 100 lines with all comments removed). This is a basic implementation of the snake game, but it's missing a few things intentionally and they're left as further exploration for the reader.

Further Exploration

• Score
  • When the snake eats an apple, the score should increase by one. Use context.fillText() to display the score to the screen
• Mobile and touchscreen support
• Allow the game to be scalled down to a phone size. See https://codepen.io/straker/pen/VazMaL

krast

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

krast

#!/bin/bash
zypper addrepo https://download.opensuse.org/repositories/home:/so_it_team:/12.x/SLE_12_SP3/home:so_it_team:12.x.repo
zypper addrepo https://download.opensuse.org/repositories/network:utilities/SLE_12_SP3/network:utilities.repo
zypper refresh
zypper install -y iperf tmux

krast

Fluent-bit rocks

A short survey of log collection options and why you picked the wrong one. 😜

Who am I? Where am I from?

I'm Steve Coffman and I work at Ithaka. We do JStor (academic journals) and other stuff. How big is it?

Number	what it means
101,332,633	unique visitors in 2017

krast

import json
import uuid

from pathlib import Path
from urllib.parse import urlparse
from datetime import datetime

import html2text
import requests
from bs4 import BeautifulSoup

krast

#!/usr/bin/sudo sh

## ruby_revealer.sh -- decrypt obfuscated GHE .rb files. 2.0.0 to 2.3.1+.

## From `strings ruby_concealer.so`:
##
## > This obfuscation is intended to discourage GitHub Enterprise customers
## > from making modifications to the VM.
##
## Well, good, as long as its not intended to discourage *me* from doing this!