(by @andrestaltz)
If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.
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 |
(by @andrestaltz)
If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.
#! /usr/bin/env python3 | |
"""Fixing bluetooth stereo headphone/headset problem in debian distros. | |
Workaround for bug: https://bugs.launchpad.net/ubuntu/+source/indicator-sound/+bug/1577197 | |
Run it with python3.5 or higher after pairing/connecting the bluetooth stereo headphone. | |
This will be only fixes the bluez5 problem mentioned above . | |
Licence: Freeware |
git branch -m old_branch new_branch # Rename branch locally | |
git push origin :old_branch # Delete the old branch | |
git push --set-upstream origin new_branch # Push the new branch, set local branch to track the new remote |
This will create a proxy server in whatever your availability zone your VPC is in. For me, that's us-east-1b
. For you, that may be something different. Steps 10+ should more or less work regardless of your provider since those steps cover the setup and configuration of TinyProxy.
package main | |
import ( | |
"bytes" | |
"fmt" | |
"io" | |
"log" | |
"mime/multipart" | |
"net/http" | |
"os" |
Disclaimer: This piece is written anonymously. The names of a few particular companies are mentioned, but as common examples only.
This is a short write-up on things that I wish I'd known and considered before joining a private company (aka startup, aka unicorn in some cases). I'm not trying to make the case that you should never join a private company, but the power imbalance between founder and employee is extreme, and that potential candidates would
# autoload concerns | |
module YourApp | |
class Application < Rails::Application | |
config.autoload_paths += %W( | |
#{config.root}/app/controllers/concerns | |
#{config.root}/app/models/concerns | |
) | |
end | |
end |
# config/initializers/clear_logs.rb | |
# This snippet simply clears your logs when they are too large. | |
# Large logs mean looooong search in TextMate. You know it :) | |
# Every time you run rails server or rails console it checks log sizes | |
# and clears the logs for you if necessary. | |
if Rails.env.development? | |
MAX_LOG_SIZE = 2.megabytes | |