gist:2523336

#!/bin/sh

git filter-branch --env-filter '

an="$GIT_AUTHOR_NAME"
am="$GIT_AUTHOR_EMAIL"
cn="$GIT_COMMITTER_NAME"
cm="$GIT_COMMITTER_EMAIL"

if [ "$GIT_COMMITTER_EMAIL" = "[email protected]" ]

anekos

evernote_doAction( document.popupNode, 'CLIP_ACTION_FULL_PAGE' );
evernote_doAction( document.popupNode, 'CLIP_ACTION_IMAGE' );
evernote_doAction( document.popupNode, 'CLIP_ACTION_SELECTION' );
evernote_doAction( document.popupNode, 'CLIP_ACTION_URL' );
evernote_doAction( document.popupNode, 'NEW_NOTE_ACTION' );

hellerbarde

Latency numbers every programmer should know

L1 cache reference ......................... 0.5 ns
Branch mispredict ............................ 5 ns
L2 cache reference ........................... 7 ns
Mutex lock/unlock ........................... 25 ns
Main memory reference ...................... 100 ns             
Compress 1K bytes with Zippy ............. 3,000 ns  =   3 µs
Send 2K bytes over 1 Gbps network ....... 20,000 ns  =  20 µs
SSD random read ........................ 150,000 ns  = 150 µs

Read 1 MB sequentially from memory ..... 250,000 ns = 250 µs

lichengwu

#list all changed flags
-XX:+PrintCommandLineFlags

#list all changeable flags and final default values
-XX:+PrintFlagsFinal
         
#list all changeable flags and initial default values
-XX:+PrintFlagsInitial

eg:

jayjanssen

SELECT db, tbl, SUM(this_cnt) AS total_rows, COUNT(*) AS chunks
FROM percona.checksums, information_schema.tables
WHERE 
	percona.checksums.db=information_schema.tables.TABLE_SCHEMA AND
	percona.checksums.tbl=information_schema.tables.TABLE_NAME AND
	information_schema.tables.ENGINE != 'MEMORY' AND
	percona.checksums.db='myDB' AND
(
 master_cnt <> this_cnt
 OR master_crc <> this_crc

jasonrudolph

About

This gist is a collection of my rough notes from Strange Loop 2012.

@jasonrudolph on Twitter | @jasonrudolph on GitHub

Did I Mention That They're Rough?

gnarf

Install

Either copy the aliases from the .gitconfig or run the commands in add-pr-alias.sh

Usage

Easily checkout local copies of pull requests from remotes:

• git pr 4 - creates local branch pr/4 from the github upstream(if it exists) or origin remote and checks it out
• git pr 4 someremote - creates local branch pr/4 from someremote remote and checks it out

mopemope

core@coreos-local ~ $ ./nspawn-container jmatis/tomcat7 "/opt/start-watch-tomcat.sh"
Pulling repository jmatis/tomcat7
b3dfa5e5f738: Download complete 
511136ea3c5a: Download complete 
5e66087f3ffe: Download complete 
4d26dd3ebc1c: Download complete 
d4010efcfd86: Download complete 
99ec81b80c55: Download complete 
c17d434dd941: Download complete 
180579a76826: Download complete 

LordZamy

package main

import (
    "fmt"
)

func main() {
    A := []int{3, 5, 1, 6, 1, 7, 2, 4, 5}
    fmt.Println(sort(A))
}

tlockney

What questions would you put on a phone screen for a distributed systems position?

These come from @tsantero with the last two additions being curteousy of @ifesdjeen in reply to this question from @SeanTAllen.

1. explain the life of an http request.
2. what does the FLP result teach us?
3. what is a byzantine failure?
4. explain CRDTs
5. explain linearizability.
6. how does DNS work?