pksunkara

[user]
	name = Pavan Kumar Sunkara
	email = pavan.sss1991@gmail.com
	username = pksunkara
[init]
	defaultBranch = master
[core]
	editor = nvim
	whitespace = fix,-indent-with-non-tab,trailing-space,cr-at-eol
	pager = delta

hellerbarde

Latency numbers every programmer should know

L1 cache reference ......................... 0.5 ns
Branch mispredict ............................ 5 ns
L2 cache reference ........................... 7 ns
Mutex lock/unlock ........................... 25 ns
Main memory reference ...................... 100 ns             
Compress 1K bytes with Zippy ............. 3,000 ns  =   3 µs
Send 2K bytes over 1 Gbps network ....... 20,000 ns  =  20 µs
SSD random read ........................ 150,000 ns  = 150 µs

Read 1 MB sequentially from memory ..... 250,000 ns = 250 µs

seanbuscay

cd repository
git checkout --orphan orphan_name
git rm -rf .
rm '.gitignore'
echo "#Title of Readme" > README.md
git add README.md
git commit -a -m "Initial Commit"
git push origin orphan_name

yoavniran

The Ultimate Unit Testing Cheat-sheet

---

• Sinon Chai
• Chai
• Sinon

xlab

func split(buf []byte, lim int) [][]byte {
	var chunk []byte
	chunks := make([][]byte, 0, len(buf)/lim+1)
	for len(buf) >= lim {
		chunk, buf = buf[:lim], buf[lim:]
		chunks = append(chunks, chunk)
	}
	if len(buf) > 0 {
		chunks = append(chunks, buf[:len(buf)])
	}

uudashr

package main

import (
	"fmt"
	"log"
	"os"
	"os/signal"
	"syscall"
)

Brainiarc7

Tuning Intel Skylake and beyond for optimal performance and feature level support on Linux:

Note that on Skylake, Kabylake (and the now cancelled "Broxton") SKUs, functionality such as power saving, GPU scheduling and HDMI audio have been moved onto binary-only firmware, and as such, the GuC and the HuC blobs must be loaded at run-time to access this functionality.

Enabling GuC and HuC on Skylake and above requires a few extra parameters be passed to the kernel before boot.

Instructions provided for both Fedora and Ubuntu (including Debian):

Note that the firmware for these GPUs is often packaged by your distributor, and as such, you can confirm the firmware blob's availability by running:

xsot

Usage

sed -E -f solver.sed input where input is a file containing the maze.

For best results, resize your terminal to match the height of the maze. To disable animations, delete the lines containing p.

Maze format

The solver assumes the following:

• The maze only contains the characters # \nSE
• Every line has the same number of characters
• There is only one start (S) and end (E)

arnabkaycee

General Guidelines for writing Hyperledger Fabric Chaincodes.

I believe smart-contracts (chaincodes) are the heart of any Blockchain Network. Written correctly can yeild many benefits and truly bring out the best in a secure blockchain network and have distratous effects if written inefficiently. Although I will not discuss about any specific goods and bads of Chaincode design, I will touch down a few guidelines which I experienced while doing some POC applications during my work. Without further ado, let's start.

Below are a few general guidelines / caveats that can be adhered to (although there are exceptions) while writing chaincodes. These I have particularly written for chaincodes written for Hyperledger fabric v.1.0 network in golang. But, I believe they can be extrapolated to chaincodes written in any language for Hyperledger Fabric.

Use Chaincode DevMode

To kickoff your development process, use the DevMode. I cannot emphasise enough, how important it is to use dev mode and save time and eff

estorgio

Mounting VirtualBox shared folders on Ubuntu Server 18.04 LTS (Bionic Beaver)

This guide will walk you through the steps on how to setup a VirtualBox shared folder inside your Ubuntu Server guest.

Prerequisites

This guide assumes that you are using the following setup:

• Oracle VM VirtualBox version 6.0.10 with Extension Pack installed
• Microsoft Windows 7 SP1 as the host OS
• A fresh install of Ubuntu Server 18.04.2 LTS as the guest OS

You could still make this guide work with other setups (possibly with some modifications to the commands and whatnot).