Dmitry Logvinenko dmlogv

Stevey's Google Platforms Rant

I was at Amazon for about six and a half years, and now I've been at Google for that long. One thing that struck me immediately about the two companies -- an impression that has been reinforced almost daily -- is that Amazon does everything wrong, and Google does everything right. Sure, it's a sweeping generalization, but a surprisingly accurate one. It's pretty crazy. There are probably a hundred or even two hundred different ways you can compare the two companies, and Google is superior in all but three of them, if I recall correctly. I actually did a spreadsheet at one point but Legal wouldn't let me show it to anyone, even though recruiting loved it.

I mean, just to give you a very brief taste: Amazon's recruiting process is fundamentally flawed by having teams hire for themselves, so their hiring bar is incredibly inconsistent across teams, despite various efforts they've made to level it out. And their operations are a mess; they don't real

Save an iPython session commands/code to a file

You must use the magic method %save:

In [1]: %save?
Type:       Magic function
String Form:<bound method CodeMagics.save of <IPython.core.magics.code.CodeMagics object at 0x7fb5d25bb1d0>>
Namespace:  IPython internal
File: /usr/lib/python2.7/dist-packages/IPython/core/magics/code.py


	FILE SPACING:

	# double space a file
	sed G

	# double space a file which already has blank lines in it. Output file
	# should contain no more than one blank line between lines of text.
	sed '/^$/d;G'

	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

	#!/bin/bash

	mkdir -p ~/.ssh

	# generate new personal ed25519 ssh keys
	ssh-keygen -o -a 100 -t ed25519 -f ~/.ssh/id_ed25519 -C "rob thijssen <[email protected]>"
	ssh-keygen -o -a 100 -t ed25519 -f ~/.ssh/id_robtn -C "rob thijssen <[email protected]>"

	# generate new host cert authority (host_ca) ed25519 ssh key
	# used for signing host keys and creating host certs



	#define WIN32_LEAN_AND_MEAN // just say no to MFC

	#define INIT_GUID

	#include "hge.h"
	#include <hgesprite.h>
	#include <hgefont.h>
	#include <hgecolor.h>

	SELECT table,
	formatReadableSize(sum(bytes)) as size,
	min(min_date) as min_date,
	max(max_date) as max_date
	FROM system.parts
	WHERE active
	GROUP BY table

Dmitry Logvinenko dmlogv

Stevey's Google Platforms Rant

Save an iPython session commands/code to a file

Table of Contents

set -e, -u, -x, -o pipefail

	# If you come from bash you might have to change your $PATH.
	# export PATH=$HOME/bin:/usr/local/bin:$PATH

	# Path to your oh-my-zsh installation.
	export ZSH=$HOME/.oh-my-zsh

	# Set name of the theme to load. Optionally, if you set this to "random"
	# it'll load a random theme each time that oh-my-zsh is loaded.
	# See https://github.com/robbyrussell/oh-my-zsh/wiki/Themes
	POWERLEVEL9K_MODE="nerdfont-complete"

	FCKGW-RHQQ2-YXRKT-8TG6W-2B7Q8

	Windows XP PRO Corporate serial number S/N: Key: MQPWW-PGVKX-YPMKG-8DH3G-KC8PW
	windows xp home edition serial number S/N: 034634-262024-171505-828316-729010-413531-800424-400442
	Windows XP 64 serial number S/N: B2RBK-7KPT9-4JP6X-QQFWM-PJD6G
	Windows XP serial number S/N: K6C2K-KY62K-DQR84-RD4QV-QB74Q
	Windows XP Professional 64-bit Corporate Edition 5.2.3790.1830 serial number S/N: VCFQD-V9FX9-46WVH-K3CD4-4J3JM
	Microsoft Windows XP Professional SP2 serial number S/N: YY8F2-3CKVQ-RKTRG-6JMDR-9DTG6
	Windows XP Professional Service Pack 1 sp1 serial number S/N: F46YY - 2R8VQ - R8GMY - 926VK - 6BQ73
	Windows XP Pro serial number S/N: KBWR7-76BD8-J7MDQ-KKG&C-V9Q2J