GLMeece

Latency Comparison Numbers

Note: "Forked" from Latency Numbers Every Programmer Should Know

Event	Nanoseconds	Microseconds	Milliseconds	Comparison
L1 cache reference	0.5	-	-	-
Branch mispredict	5.0	-	-	-
L2 cache reference	7.0	-	-	14x L1 cache
Mutex lock/unlock	25.0	-	-	-

joshbuchea

Semantic Commit Messages

See how a minor change to your commit message style can make you a better programmer.

Format: <type>(<scope>): <subject>

<scope> is optional

Example

benyanke

# Bash Fidget Spinner
# Could also be included in a bashrc file
fidget() {
  start_time="0.02";
  spin_efficiency="0.99";
  end_time="3";

  time="$start_time";

  printf "\e[92mPress any key to give another spin...\n\n";

magnetikonline

AWS CloudFormation YAML template - appending to list parameter types

Documenting this here, as I often forget (what I have found) is the best way to do this at the moment.

For example, you have a list of two existing security groups given to a stack and wish to create (and use) a third - attaching all to an ALB:

AWSTemplateFormatVersion: '2010-09-09'
Description: Example template

jlis

image: docker:latest

variables:
  REPOSITORY_URL: <AWS ACCOUNT ID>.dkr.ecr.eu-central-1.amazonaws.com/<ECS REPOSITORY NAME>
  REGION: eu-central-1
  TASK_DEFINTION_NAME: <TASK DEFINITION NAME>
  CLUSTER_NAME: <CLUSTER NAME>
  SERVICE_NAME: <SERVICE NAME>

services:

ServerlessBot

{
    "Statement": [
        {
            "Action": [
                "apigateway:*",
                "cloudformation:CancelUpdateStack",
                "cloudformation:ContinueUpdateRollback",
                "cloudformation:CreateChangeSet",
                "cloudformation:CreateStack",
                "cloudformation:CreateUploadBucket",

a-h

" Plugins used

" Install vim-plug.
" https://github.com/junegunn/vim-plug
" curl -fLo ~/.vim/autoload/plug.vim --create-dirs https://raw.githubusercontent.com/junegunn/vim-plug/master/plug.vim 

" Install dependencies.
" python3 -m pip install --user --upgrade pynvim
" python -m pip install --user --upgrade pynvim
" :PlugInstall