ryancdotorg

#!/usr/bin/env python

import sys
import gmpy

import curve25519

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

laanwj

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

dskinner

package main

import (
	"fmt"

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

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))

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,

luke-jr

Terminology

Btransaction

blockchain transaction (a "normal" transaction)

Ctransaction

combined transaction (also a valid Btransaction)

Dtransaction

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