jboner

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

luke-jr

Terminology

Btransaction

blockchain transaction (a "normal" transaction)

Ctransaction

combined transaction (also a valid Btransaction)

Dtransaction

aras-p

// Just before switching jobs:
// Add one of these.
// Preferably into the same commit where you do a large merge.
//
// This started as a tweet with a joke of "C++ pro-tip: #define private public",
// and then it quickly escalated into more and more evil suggestions.
// I've tried to capture interesting suggestions here.
//
// Contributors: @r2d2rigo, @joeldevahl, @msinilo, @_Humus_,
// @YuriyODonnell, @rygorous, @cmuratori, @mike_acton, @grumpygiant,

jsl

; You need to load a library for the assp function to run the microKanren code in Guile:

(import (rnrs))
(load "microKanren.scm")
(load "miniKanren-wrappers.scm")
(load "microKanren-test-programs.scm")
((call/fresh (lambda (q) (== q 5))) empty-state) 
; $3 = ((((#(0) . 5)) . 1))

dskinner

package main

import (
	"fmt"

	"math"
	"os"
	"sort"
	"strings"
)

laanwj

This has moved to https://github.com/bitcoin/bitcoin/blob/master/doc/reduce-memory.md

ryancdotorg

#!/usr/bin/env python

import sys
import gmpy

import curve25519

from struct import pack
from hashlib import sha256
from binascii import hexlify, unhexlify

msoap

//usr/bin/env go run $0 "$@"; exit
package main

import (
	"fmt"
	"os"
)

func main() {
	fmt.Println("Hello world!")

XVilka

This gist will show the support of BiDirectional text in the terminal emulators and console programs. You can read more about the standardization efforts at the dedicated page of FreeDesktop Terminal BiDi working group.

How to test

Logical Order	◀ ◀ ◀ RTL	LTR ▶ ▶ ▶
WHAT IS UNICODE؟ in arabic	in arabic ؟EDOCINU SI TAHW	؟EDOCINU SI TAHW in arabic
	ما هو الترميز الموحد يونيكود؟ in Arabic	ما هو الترميز الموحد يونيكود؟ in Arabic

LaurentMT

This document is an attempt to define metrics quantifying the degree of privacy provided by a bitcoin transaction.


Objectives

Definition of metrics measuring the resistance of a transaction to a set of attacks against users privacy.

Attacks considered in the scope of these metrics are:
- Merged Inputs Heuristic: methods identifying the inputs controlled by a same entity
- Coinjoin Sudoku: methods identifying the links existing between the inputs and outputs of a transaction