Jonathan Simpson jsimpson

Creating a redis Module in 15 lines of code!

A quick guide to write a very very simple "ECHO" style module to redis and load it. It's not really useful of course, but the idea is to illustrate how little boilerplate it takes.

Step 1: open your favorite editor and write/paste the following code in a file called module.c

#include "redismodule.h"
/* ECHO <string> - Echo back a string sent from the client */
int EchoCommand(RedisModuleCtx *ctx, RedisModuleString **argv, int argc) {

These links no longer work. Springer have pulled the free plug.

Graduate texts in mathematics

duplicates = multiple editions

A Classical Introduction to Modern Number Theory, Kenneth Ireland Michael Rosen

Finding a Ruby memory leak using a time analysis

When developing a program in Ruby, you may sometimes encounter a memory leak. For a while now, Ruby has a facility to gather information about what objects are laying around: ObjectSpace.

There are several approaches one can take to debug a leak. This discusses a time-based approach, where a full memory dump is generated every, say, 5 minutes, during a time that the memory leak is showing up. Afterwards, one can look at all the objects, and find out which ones are staying around, causing the

Go Code Review Comments

This page collects common comments made during reviews of Go code, so that a single detailed explanation can be referred to by shorthands. This is a laundry list of common mistakes, not a style guide.

You can view this as a supplement to http://golang.org/doc/effective_go.html.

Please discuss changes before editing this page, even minor ones. Many people have opinions and this is not the place for edit wars.

superfish.pem contains:

the Superfish certificate as found by both Chris Palmer and Matt Burke;
the encrypted private key as found by Karl Koscher.

$ openssl x509 -in superfish.pem -text
Certificate:
    Data:
        Version: 3 (0x2)

	'''This script goes along the blog post
	"Building powerful image classification models using very little data"
	from blog.keras.io.
	It uses data that can be downloaded at:
	https://www.kaggle.com/c/dogs-vs-cats/data
	In our setup, we:
	- created a data/ folder
	- created train/ and validation/ subfolders inside data/
	- created cats/ and dogs/ subfolders inside train/ and validation/
	- put the cat pictures index 0-999 in data/train/cats

	.
	├── books
	│ ├── handlers.go
	│ └── models.go
	├── config
	│ └── db.go
	└── main.go

	//Dr. Seuss once wrote, "IF." He meant, "If you give a fuck, maybe,
	//JUST MAYBE, you can change this shitty world in some small way for
	//the better." I might've been an writer of children's books someday,
	//but instead, I decided to make this. So in lieu of The Lorax,
	//let's call this The Dragon, and have my word be, "DON'T." As in,
	//"Don't do something stupid like this the way I did, you jackass."
	//But the truth is humans are very stubborn creatures. You probably
	//won't listen to my advice and, chances are, neither will I.

	require "net/http"

	def start_server
	# Remove the X to enable the parameters for tuning.
	# These are the default values as of Ruby 2.2.0.
	@child = spawn(<<-EOC.split.join(" "))
	XRUBY_GC_HEAP_FREE_SLOTS=4096
	XRUBY_GC_HEAP_INIT_SLOTS=10000
	XRUBY_GC_HEAP_GROWTH_FACTOR=1.8
	XRUBY_GC_HEAP_GROWTH_MAX_SLOTS=0