Skip to content

Instantly share code, notes, and snippets.

Michał Marczyk michalmarczyk

Block or report user

Report or block michalmarczyk

Hide content and notifications from this user.

Learn more about blocking users

Contact Support about this user’s behavior.

Learn more about reporting abuse

Report abuse
View GitHub Profile
@jboner
jboner / latency.txt
Last active Jan 22, 2020
Latency Numbers Every Programmer Should Know
View latency.txt
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
@staltz
staltz / introrx.md
Last active Jan 22, 2020
The introduction to Reactive Programming you've been missing
View introrx.md
@willurd
willurd / web-servers.md
Last active Jan 22, 2020
Big list of http static server one-liners
View web-servers.md

Each of these commands will run an ad hoc http static server in your current (or specified) directory, available at http://localhost:8000. Use this power wisely.

Discussion on reddit.

Python 2.x

$ python -m SimpleHTTPServer 8000
View redis_pubsub_demo.rb
# Author: Pieter Noordhuis
# Description: Simple demo to showcase Redis PubSub with EventMachine
#
# Update 7 Oct 2010:
# - This example does *not* appear to work with Chrome >=6.0. Apparently,
# the WebSocket protocol implementation in the cramp gem does not work
# well with Chrome's (newer) WebSocket implementation.
#
# Requirements:
# - rubygems: eventmachine, thin, cramp, sinatra, yajl-ruby
View trello-css-guide.md

Hello, visitors! If you want an updated version of this styleguide in repo form with tons of real-life examples… check out Trellisheets! https://github.com/trello/trellisheets


Trello CSS Guide

“I perfectly understand our CSS. I never have any issues with cascading rules. I never have to use !important or inline styles. Even though somebody else wrote this bit of CSS, I know exactly how it works and how to extend it. Fixes are easy! I have a hard time breaking our CSS. I know exactly where to put new CSS. We use all of our CSS and it’s pretty small overall. When I delete a template, I know the exact corresponding CSS file and I can delete it all at once. Nothing gets left behind.”

You often hear updog saying stuff like this. Who’s updog? Not much, who is up with you?

@stuarthalloway
stuarthalloway / gist:2645453
Created May 9, 2012
Datomic queries against Clojure collections
View gist:2645453
;; Datomic example code
(use '[datomic.api :only (db q) :as d])
;; ?answer binds a scalar
(q '[:find ?answer :in ?answer]
42)
;; of course you can bind more than one of anything
(q '[:find ?last ?first :in ?last ?first]
"Doe" "John")
@danking
danking / gist:1068185
Created Jul 6, 2011
A very simple example showing how to use Racket's lexing and parsing utilities
View gist:1068185
#lang racket
(require parser-tools/lex
(prefix-in re- parser-tools/lex-sre)
parser-tools/yacc)
(provide (all-defined-out))
(define-tokens a (NUM VAR))
(define-empty-tokens b (+ - EOF LET IN))
(define-lex-trans number
(syntax-rules ()
@mislav
mislav / pagination.md
Created Oct 12, 2010
"Pagination 101" by Faruk Ateş
View pagination.md

Pagination 101

Article by Faruk Ateş, [originally on KuraFire.net][original] which is currently down

One of the most commonly overlooked and under-refined elements of a website is its pagination controls. In many cases, these are treated as an afterthought. I rarely come across a website that has decent pagination, and it always makes me wonder why so few manage to get it right. After all, I'd say that pagination is pretty easy to get right. Alas, that doesn't seem the case, so after encouragement from Chris Messina on Flickr I decided to write my Pagination 101, hopefully it'll give you some clues as to what makes good pagination.

Before going into analyzing good and bad pagination, I want to explain just what I consider to be pagination: Pagination is any kind of control system that lets the user browse through pages of search results, archives, or any other kind of continued content. Search results are the o

@BrockA
BrockA / checkForBadJavascripts.js
Created May 6, 2012
This is a utility function, meant to be used inside a Greasemonkey script that has the "@run-at document-start" directive set. It Checks for and deletes or replaces specific <script> tags.
View checkForBadJavascripts.js
/*--- checkForBadJavascripts()
This is a utility function, meant to be used inside a Greasemonkey script that
has the "@run-at document-start" directive set.
It Checks for and deletes or replaces specific <script> tags.
*/
function checkForBadJavascripts (controlArray) {
/*--- Note that this is a self-initializing function. The controlArray
parameter is only active for the FIRST call. After that, it is an
event listener.
You can’t perform that action at this time.