tonyc

Using strace and lsof to debug blocked processes

You can use strace on a specific pid to figure out what a specific process is doing, e.g.:

strace -fp <pid>

You might see something like:

select(9, [3 5 8], [], [], {0, 999999}) = 0 (Timeout)

kkiernan

import sublime, sublime_plugin, re

class CreateCommand(sublime_plugin.TextCommand):

    # Runs the plugin
    def run(self, edit, stub, offset):
        self.view.insert(edit, offset, stub)

dvirsky

Creating a redis Module in 15 lines of code!

A quick guide to write a very very simple "ECHO" style module to redis and load it. It's not really useful of course, but the idea is to illustrate how little boilerplate it takes.

Step 1: open your favorite editor and write/paste the following code in a file called module.c

#include "redismodule.h"
/* ECHO <string> - Echo back a string sent from the client */
int EchoCommand(RedisModuleCtx *ctx, RedisModuleString **argv, int argc) {

gmr

The files in this gist are for having Jenkins automatically manage a chef repository using git submodules. This allows for clean, clutter free management of individual cookbooks, and individual respositories for roles, environments and data bags in our chef-repo.

The process relies on using Github (we use Github Enterprise) and Jenkins in combination with the Jenkins Github plugin to notify Jenkins when a repository has changed.

Our chef-repo directory looks something like:

chef-repo
    - cookbooks
          - Each cookbook is a git submodule managed by Jenkins
    - data_bags (git submodule managed by Jenkins)

hrnn

Courses

• Website Performance Optimization|Udacity
• [Browser Rendering Optimization|Udacity] (https://www.udacity.com/course/browser-rendering-optimization--ud860)

Talks

• Web Performance Tooling - Google I/O 2016
• Velocity 2014: GPU and Web UI Performance: Building an Endless 60fps
• A developer’s guide to rendering performance | Fronteers 2013

grncdr

import subprocess
import shutil
import os
import sys
import tarfile

def get_version(project_root):
    process = subprocess.Popen(
        ['git', 'describe'],
        stdout=subprocess.PIPE,