ageis

security and hardening options for systemd service units

A common and reliable pattern in service unit files is thus:

NoNewPrivileges=yes
PrivateTmp=yes
PrivateDevices=yes
DevicePolicy=closed
ProtectSystem=strict

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

piscisaureus

Locate the section for your github remote in the .git/config file. It looks like this:

[remote "origin"]
	fetch = +refs/heads/*:refs/remotes/origin/*
	url = git@github.com:joyent/node.git

Now add the line fetch = +refs/pull/*/head:refs/remotes/origin/pr/* to this section. Obviously, change the github url to match your project's URL. It ends up looking like this:

agnoster

agnoster.zsh-theme

A ZSH theme optimized for people who use:

• Solarized
• Git
• Unicode-compatible fonts and terminals (I use iTerm2 + Menlo)

For Mac users, I highly recommend iTerm 2 + Solarized Dark

astrofrog

import time
import multiprocessing as mp

import numpy as np

import matplotlib
matplotlib.use('Agg')
import matplotlib.pyplot as plt

neomatrix369

Everything I Ever Learned About JVM Performance Tuning @Twitter- by Attila Szegedi

http://www.infoq.com/presentations/JVM-Performance-Tuning-twitter (video & slides)

9 Fallacies of Java Performance - by Ben Evans

http://www.infoq.com/articles/9_Fallacies_Java_Performance (video & slides)

Visualizing Java GC - by Ben Evans

http://www.infoq.com/presentations/Visualizing-Java-GC (video & slides)

Java Garbage Collection Distilled by Martin Thompson

fmela

/*
 * Copyright (c) 2009-2017, Farooq Mela
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright

rednaxelafx

  1   b   java.lang.String::charAt (33 bytes)
  2   b   java.lang.Math::max (11 bytes)
  3   b   java.util.jar.Manifest$FastInputStream::readLine (167 bytes)
  4   b   sun.nio.cs.UTF_8$Decoder::decodeArrayLoop (553 bytes)
  5   b   java.util.Properties$LineReader::readLine (383 bytes)
  6   b   java.lang.String::hashCode (60 bytes)
  7   b   java.lang.String::indexOf (151 bytes)
  8   b   sun.nio.cs.ext.DoubleByteDecoder::decodeSingle (10 bytes)
  9   b   java.lang.String::lastIndexOf (156 bytes)
 10   b   java.lang.String::replace (142 bytes)

preshing

#include <stdio.h>
#include <stdlib.h>
#include <assert.h>

typedef unsigned int u32;
typedef unsigned long long u64;

//-------------------------------------------------------------------------
// WorkArea
//-------------------------------------------------------------------------

jcartledge

[global_config]
  title_transmit_bg_color = "#839496"
  title_inactive_fg_color = "#93a1a1"
  title_transmit_fg_color = "#eee8d5"
  title_inactive_bg_color = "#586e75"
[keybindings]
[profiles]
  [[default]]
    palette = "#073642:#d30102:#859900:#b58900:#6c71c4:#d33682:#2aa198:#839496:#586e75:#cb4b16:#859900:#b58900:#268bd2:#d33682:#2aa198:#93a1a1"
    login_shell = True