slavivanov

Mozilla/5.0 (compatible; woriobot support [at] worio [dot] com +http://worio.com)
EventMachine HttpClient
MxAgent
Mozilla
Comodo-Certificates-Spider
JS-Kit URL Resolver, http://js-kit.com/
curl/7.15.5 (x86_64-redhat-linux-gnu) libcurl/7.15.5 OpenSSL/0.9.8b zlib/1.2.3 libidn/0.6.5
Googlebot/2.1 (http://www.googlebot.com/bot.html)
libwww-perl/5.834
Jakarta Commons-HttpClient/3.1

slavivanov

[
	{
		"id": 999999999,
		"timestamp": "2020-12-10T20:29:31.967Z",
		"eventName": "email-delivered",
		"eventType": "email",
		"userData": {
			"id": "0e824a36-36af-45cd-98b7-0110c5ffa891",
			"userId": "user_12345",
			"email": "[email protected]"

slavivanov

import * as Sequelize from "sequelize";
import uuidv1 = require("uuid/v4");
import { SequelizeModelStatic } from "./sequelize";
import * as pLimit from "p-limit";
import _ = require("lodash");

/**
 * Get generated SQL query from sequelize. Returns a promise that:
 * 1. Adds a hook that receives the prepared options from Sequelize
 *  - Since hooks work on the whole model,

slavivanov

Abstract Art
Abstract Expressionism Painting
Acrylics
Ancient Pottery
Animation
Architecture
Art Brut
Art Deco
Art Installation
Art Nouveau

slavivanov

Latency Comparison Numbers
--------------------------
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

slavivanov

╔═════════════╦══════════╦════════════╦═══════════════════╗
║    Size     ║ Num GPUs ║ Price/hour ║ Spot price/hour * ║
╠═════════════╬══════════╬════════════╬═══════════════════╣
║ p2.xlarge   ║        1 ║ $0.90      ║ $0.1288           ║
║ p2.8xlarge  ║        8 ║ $7.20      ║ $0.8483           ║
║ p2.16xlarge ║       16 ║ $14.40     ║ $1.7025           ║
╚═════════════╩══════════╩════════════╩═══════════════════╝

* Spot pricing in AWS N. Virginia Region, zone us-east-1e at time of writing

slavivanov

╔═════════════════╦══════════════╦══════════════╗
║ Region/Provider ║   Fast.ai    ║    Amazon    ║
╠═════════════════╬══════════════╬══════════════╣
║ us-east-1       ║ ami-31ecfb26 ║ ami-fb8e19ed ║
║ us-west-2       ║ ami-bc508adc ║ ami-638c1e03 ║
║ eu-west-1       ║ ami-b43d1ec7 ║ ami-c5afaaa3 ║
╚═════════════════╩══════════════╩══════════════╝