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

MohamedAlaa

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

stephenhardy

-- Remove the history from 
rm -rf .git

-- recreate the repos from the current content only
git init
git add .
git commit -m "Initial commit"

-- push to the github remote repos ensuring you overwrite history
git remote add origin git@github.com:<YOUR ACCOUNT>/<YOUR REPOS>.git

egarson

(define-abbrev-table 'greek-abbrev-table
  '(
	;; Greek small letters
	("8al" "α")
	("8be" "β")
	("8ga" "γ")
	("8de" "δ")
	("8ep" "ε")
	("8ze" "ζ")
	("8et" "η")

martinus

/* Example adapted from http://www.drdobbs.com/database/differential-evolution/184410166 
 * 
 * This implements the DE/rand/1/bin optimization algorithm.
 *
 */

/* Initialize individuals */
for (i=0; i<NP; i++) {  
    /* randomly initialize all individuals */
    for (j=0; j<D; j++) {

joferkington

import sys
import h5py

def main():
    data = read()

    if sys.argv[1] == 'x':
        x_slice(data)
    elif sys.argv[1] == 'z':
        z_slice(data)

Jacketbg

<?php
/*
This script exports user's starred articles via the official Inoreader API. 
Use it in case you have thousands of starred articles since Inoreader's export function will not export much more than 1000 articles.
Use your Inoreader email and password to sign in. 
You will need to create a developer application first to obtain $app_id and $app_key. Read here about this - http://www.inoreader.com/developers/register-app
*/

$email = ""; // You Inoreader username or email
$password = ""; // Your Inoreader password

ErisDS

Filter Queries - Example Use Cases

Here are a few example use cases, these use cases combine filter with other parameters to make useful API queries. The syntax for any of this may change between now, implementation, and release - they're meant as illustrative examples :)

Fetch 3 posts with tags which match 'photo' or 'video' and aren't the post with id 5.

api.posts.browse({filter: "tags:[photo, video] + id:-5", limit="3"});

GET /api/posts?filter=tags%3A%5Bphoto%2Cvideo%5D%2Bid%3A-5&limit=3

pinhopro

#!/usr/bin/env python
import hashlib
import hmac
import time
import requests
import datetime

# Q. Do you have A Websocket API?
# A. Yes, and we strongly recommend you to use it. Please, check our JavaScript websocket implementation for our WebSocket API here:
# https://github.com/blinktrade/frontend/blob/master/jsdev/bitex/api/bitex.js

mariocesar

from .models import Post, Category
from .decorators import action_form


class PostCategoryForm(forms.Form):
    title = 'Update category for the selected posts'
    myfile = forms.FileField()
    category = forms.ModelChoiceField(queryset=Category.objects.all())