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@jboner
jboner / latency.txt
Last active April 26, 2024 03:40
Latency Numbers Every Programmer Should Know
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
@dfm
dfm / LICENSE
Last active September 9, 2023 23:56
XKCD-style plots in d3
Copyright (c) 2012–2013 Daniel Foreman-Mackey
Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
the Software, and to permit persons to whom the Software is furnished to do so,
subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
@mbostock
mbostock / .block
Last active February 9, 2016 02:08
One-Way Markers
license: gpl-3.0
@kpiwko
kpiwko / shrinkwrap-resolver-use-cases.asciidoc
Last active December 29, 2021 08:51
ShrinkWrap Resolvers Use Cases

ShrinkWrap Resolvers

Introduction to ShrinkWrap Resolvers

Often we don’t control the construction of these libraries, and we certainly shouldn’t be in the business of re-assembling them (and hence further differentiating our tests from the our production runtime deployments). With the advent of Maven and other build systems, typically thirdparty libraries and our own dependent modules are obtained from a backing software repository. In this case we supply a series of coordinates which uniquely identifies an artifact in the repository, and resolve the target files from there.

That is precisely the aim of the ShrinkWrap Resolvers project; it is a Java API to obtain artifacts from a repository system. Currently implemented are grammars and support for Maven-based repository structures (this is separate from the use of Maven as a project management system or build tool; it’s possible to use a Maven repository layout with other build systems).

ShrinkWrap Resolvers is comprised of the following module

@robinhouston
robinhouston / doyle.js
Last active December 23, 2015 09:16
Doyle spiral explorer
/* Numerics for Doyle spirals.
* Robin Houston, 2013
*/
(function() {
var pow = Math.pow,
sin = Math.sin,
cos = Math.cos,
pi = Math.PI;
@robinhouston
robinhouston / index.html
Created July 28, 2013 14:16
Double stumbling blocks
<!DOCTYPE html>
<meta charset="utf-8">
<title>Double stumbling blocks</title>
<script src="http://bl.ocks.org/robinhouston/raw/6096562/rAF.js" charset="utf-8"></script>
<script src="http://bl.ocks.org/robinhouston/raw/6096562/doyle.js" charset="utf-8"></script>
<canvas width=960 height=500></canvas>
<script>
// Initialisation
var canvas = document.getElementsByTagName("canvas")[0],
context = canvas.getContext("2d");
@mbostock
mbostock / .block
Last active October 24, 2023 08:48
Drag + Zoom
license: gpl-3.0
redirect: https://observablehq.com/@d3/drag-zoom
@mbostock
mbostock / .block
Last active February 9, 2016 02:02 — forked from mbostock/.block
Dynamic Simplification II
license: gpl-3.0
@mbostock
mbostock / .block
Last active February 9, 2016 02:02
Dynamic Simplification III
license: gpl-3.0
@mbostock
mbostock / .block
Last active September 12, 2018 10:53
Junction Finding
license: gpl-3.0