Plecra

use anyhow::*;
use futures::io::{copy, AsyncReadExt, AsyncWriteExt};
use futures::stream::StreamExt;
use log::*;
use smol::Async;

use std::net;

const PORT: u16 = 5000;

premek

# Put this function to your .bashrc file.
# Usage: mv oldfilename
# If you call mv without the second parameter it will prompt you to edit the filename on command line.
# Original mv is called when it's called with more than one argument.
# It's useful when you want to change just a few letters in a long name.
#
# Also see:
# - imv from renameutils
# - Ctrl-W Ctrl-Y Ctrl-Y (cut last word, paste, paste)

charlesroper

How to setup a practically free CDN using Backblaze B2 and Cloudflare

⚠️ Note 2023-01-21
Some things have changed since I originally wrote this in 2016. I have updated a few minor details, and the advice is still broadly the same, but there are some new Cloudflare features you can (and should) take advantage of. In particular, pay attention to Trevor Stevens' comment here from 22 January 2022, and Matt Stenson's useful caching advice. In addition, Backblaze, with whom Cloudflare are a Bandwidth Alliance partner, have published their own guide detailing how to use Cloudflare's Web Workers to cache content from B2 private buckets. That is worth reading,

jessfraz

Freezer cgroup FTW

In a terminal start a server.

$ python -m SimpleHTTPServer 8000

In another terminal set up the cgroups freezer.

cypx

#!/bin/bash

# add ability to use "docker service exec <SERVICE_NAME> <CMD>" for executing a task on a Docker service
# to use this script you need to expose Docker API over TCP on all nodes of you swarm cluster

declare -A NODE_IPS
# here list all nodes of you cluster
NODE_IPS[<NODE01_NAME>]="<NODE01_IP>"
NODE_IPS[<NODE02_NAME>]="<NODE02_IP>"
NODE_IPS[<NODE03_NAME>]="<NODE03_IP>"

jcdyer

[package]
name = "edge"
version = "0.1.0"
authors = ["J. Cliff Dyer <jcd@sdf.org>"]

[dependencies]
indradb = "0.12.0"
indradb-lib = "0.12.0"
serde_json = "*"
uuid = "*"

jFransham

Achieving warp speed with Rust

Contents:

• Number one optimization tip: don't
• Never optimize blindly
• Don't bother optimizing one-time costs
• Improve your algorithms
• CPU architecture primer
• Keep as much as possible in cache
• Keep as much as possible in registers

judy2k

# Pass the env-vars to MYCOMMAND
eval $(egrep -v '^#' .env | xargs) MYCOMMAND
# … or ...
# Export the vars in .env into your shell:
export $(egrep -v '^#' .env | xargs)

KodrAus

Profiling performance

Using perf:

$ perf record -g binary
$ perf script | stackcollapse-perf.pl | rust-unmangle | flamegraph.pl > flame.svg

NOTE: See @GabrielMajeri's comments below about the -g option.

mihow

if [ ! -f .env ]
then
  export $(cat .env | xargs)
fi