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Maxime punkeel

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@swenson
swenson / gist:cf74cd8e282443b43b8a
Created May 21, 2014 15:51
Google Interview Study Guide
Author unknown.
1.) Algorithm Complexity: You need to know Big-O. If you struggle with
basic big-O complexity analysis, then you are almost guaranteed not to
get hired.
For more information on Algorithms you can visit:
http://www.topcoder.com/tc?module=Static&d1=tutorials&d2=alg_index
2.) Coding: You should know at least one programming language really
well, and it should preferably be C++ or Java. C# is OK too, since
@sindresorhus
sindresorhus / post-merge
Last active May 2, 2024 03:18
git hook to run a command after `git pull` if a specified file was changed.In this example it's used to run `npm install` if package.json changed and `bower install` if `bower.json` changed.Run `chmod +x post-merge` to make it executable then put it into `.git/hooks/`.
#!/usr/bin/env bash
# MIT © Sindre Sorhus - sindresorhus.com
# git hook to run a command after `git pull` if a specified file was changed
# Run `chmod +x post-merge` to make it executable then put it into `.git/hooks/`.
changed_files="$(git diff-tree -r --name-only --no-commit-id ORIG_HEAD HEAD)"
check_run() {
echo "$changed_files" | grep --quiet "$1" && eval "$2"
@pdeschen
pdeschen / initd
Created May 12, 2013 18:10
CentOS service initd erb template. Ready to use in Opscode Chef or replace template variables with your own hard-coded value. Takes into account priority/nice, sudo user, and /etc/sysconfig/ Support start, stop, restart, console.
#!/bin/sh
#
# <%=@service%> This shell script takes care of starting and stopping
# the <%=@service%> service.
#
# chkconfig: 2345 65 35
# description: <%=@description%>
#
SERVICE=<%=@service%>
@jboner
jboner / latency.txt
Last active May 3, 2024 15:17
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