epcim

#clone the repo
git clone http://git.ipxe.org/ipxe.git

cd ipxe/src
cat >ubuntu-amd64-installer.ipxe <<EOF
#!ipxe
dhcp
echo Starting Ubuntu x64 installer for ${hostname}
set base-url http://archive.ubuntu.com/ubuntu/dists/trusty/main/installer-amd64/current/images/netboot/ubuntu-installer/amd64
kernel ${base-url}/linux

ross-spencer

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

prologic

Learn Go in ~5mins

This is inspired by A half-hour to learn Rust and Zig in 30 minutes.

Basics

Your first Go program as a classical "Hello World" is pretty simple:

First we create a workspace for our project:

fincd-aws

apiVersion: eksctl.io/v1alpha5
kind: ClusterConfig
 
metadata:
  name: eksctl-us-west-2-managed
  region: us-west-2
 
vpc:
  id: vpc-0b953326cd7a2f917
  subnets:

bakman2

How to use Octoprint with an IP camera that has an RTSP stream available

Optional: For Wyze cam only

Install Dafang Hacks on the Wyze Cam.

Once running and all is functional, continue. Set video bitrate to 1500, VBR, 30fps.

Installation

jerblack

package main

import (
	"fmt"
	"io"
	"log"
	"os"
)

func main() {

vaidd4

Git Worktree Cheatsheet

Documentation

Setup a folder inside a repo with a specific commit of that repo.

Create a new worktree

git worktree add [-f] [--detach] [--checkout] [--lock] [-b ]  []

tennix

#!/usr/bin/env python
import json
from jinja2 import Template
# git clone https://github.com/pingcap/tidb-docker-compose
# cd tidb-docker-compose
# git clone https://github.com/tennix/grafonnet-lib -b table
# python dashboard-to-jsonnet.py > pd.jsonnet
# jsonnet -J grafonnet-lib pd.jsonnet > config/dashboards/generated-pd.json
with open('config/dashboards/pd.json', 'r') as f:
    data = json.load(f)

ams0

apiVersion: apps/v1
kind: DaemonSet
metadata:
  name: docker-root
spec:
  selector:
    matchLabels:
      name: docker-root
  template:
    metadata:

enyachoke

package main

import (
	"crypto/aes"
	"crypto/cipher"
	"crypto/rand"
	"crypto/sha256"
	"encoding/hex"
	"fmt"
	"strings"