punkeel

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

punkeel

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

punkeel

SW-2313-2899-1404

punkeel

ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBL6JkY1+F5FH7VL4eTERYuEfF+8HOFMs76IhiBuQX6cXJVB/RpF7qJzeB/ZmyV4r/CH/yIun62vxeO1frpqUQkA= ubuntu@secretive.MacPro.local

punkeel

#!/usr/bin/env python3
# cat /usr/local/sbin/taskgraph.py
# https://gist.github.com/punkeel/e84cf1e55995d98d6d7a9822e401f74b
# Little script to display TaskWarrior tasks in a graph, along with their dependencies
# alias td='rm -f ~/tasks.png; task export status:pending | ~/taskgraph.py > ~/tasks.png && echo Saved tasks graph to ~/tasks.png'

import json
import sys
import textwrap

punkeel

function retry(isDone, next) {
    var current_trial = 0, max_retry = 50, interval = 10, is_timeout = false;
    var id = window.setInterval(
        function() {
            if (isDone()) {
                window.clearInterval(id);
                next(is_timeout);
            }
            if (current_trial++ > max_retry) {
                window.clearInterval(id);

punkeel

Keybase proof

I hereby claim:

• I am PunKeel on github.
• I am punkeel (https://keybase.io/punkeel) on keybase.
• I have a public key whose fingerprint is 0216 8B4D 30F6 BD17 4A19 85EC FF57 EC5B 089B B801

To claim this, I am signing this object:

punkeel

#!/bin/bash
echo "real_ip_header     CF-Connecting-IP;">/etc/nginx/cf_rules.conf;
 
for f in $(curl "https://www.cloudflare.com/ips-v4"); do
    echo "set_real_ip_from   $f;">>/etc/nginx/cf_rules.conf;
done
for f in $(curl "https://www.cloudflare.com/ips-v6"); do
    echo "set_real_ip_from   $f;">>/etc/nginx/cf_rules.conf;
done

punkeel

<?php
$confidence = 75;
$db_prefix = 'forum';
function check_user($u) {
	$details = array('username' => urlencode($u['username']), 'email' => urlencode($u['email']), 'ip' => $u['lastip']);

	$url = "http://www.stopforumspam.com/api?ip={$details['ip']}&email={$details['email']}&username={$details['username']}&f=json";
	$data = @file_get_contents($url);
	$data = json_decode($data);