Jacek Królikowski nietaki

## latency.txt
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

## rebar-reltool-relase-notes.md

      
              1 file
            
          
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              1 comment
            
          
              51 stars
            
          
                ToddG
                / rebar-reltool-relase-notes.md
            
            
              Created
              September 15, 2012 16:46
            
              
                using rebar to create an erlang app with a dependency, and then starting a release created with reltool
              
          
    Summary

I'm trying to figure out how to use rebar to:

create erlang project
add a dependency on an erlang module from github
start the app via the erl console
create a release and start the app from the release (via the generated scripts)


## pandoc.css
/*
 * I add this to html files generated with pandoc.
 */

html {
  font-size: 100%;
  overflow-y: scroll;
  -webkit-text-size-adjust: 100%;
  -ms-text-size-adjust: 100%;
}

## zshrc
# Luke's config for the Zoomer Shell

# Enable colors and change prompt:
autoload -U colors && colors
PS1="%B%{$fg[red]%}[%{$fg[yellow]%}%n%{$fg[green]%}@%{$fg[blue]%}%M %{$fg[magenta]%}%~%{$fg[red]%}]%{$reset_color%}$%b "

# History in cache directory:
HISTSIZE=10000
SAVEHIST=10000
HISTFILE=~/.cache/zsh/history

## spacemacs-cheatsheet.md

      
              1 file
            
          
              50 forks
            
          
              3 comments
            
          
              236 stars
            
          
                davoclavo
                / spacemacs-cheatsheet.md
            
            
              Last active
              March 19, 2024 22:35
                — forked from 526avijitgupta/spacemacs-cheatsheet.md
            
              
                Spacemacs cheatsheet
              
          
    emacs --daemon to run in the background.
emacsclient.emacs24 <filename/dirname> to open in terminal
NOTE: "M-m and SPC can be used interchangeably".

Undo - C-/
Redo - C-?
Change case: 1. Camel Case : M-c
2. Upper Case : M-u


Lower Case : M-l


## current-dir-in-iterm-tab-title.sh
# put this in your .bash_profile
if [ $ITERM_SESSION_ID ]; then
  export PROMPT_COMMAND='echo -ne "\033];${PWD##*/}\007"; ':"$PROMPT_COMMAND";
fi

# Piece-by-Piece Explanation:
# the if condition makes sure we only screw with $PROMPT_COMMAND if we're in an iTerm environment
# iTerm happens to give each session a unique $ITERM_SESSION_ID we can use, $ITERM_PROFILE is an option too
# the $PROMPT_COMMAND environment variable is executed every time a command is run
# see: ss64.com/bash/syntax-prompt.html

## fixup.txt
# see the current limits
$ sysctl -a | grep maxproc

# increase it
$ sudo sysctl -w kern.maxproc=xxxx
$ sudo sysctl -w kern.maxprocperuid=xxx

# run at startup
$ sudo vim /etc/sysctl.conf

## ecto_iex_helpers.ex
import_if_available(Ecto.Query)
# alias MyApp.Repo

defmodule R do
  # Old habits die hard. Take a random of something. You don't care which.
  # > R.take(SomeSchema)
  def take(schema_or_query) do
    schema_or_query
    |> limit(1)
    |> Repo.one()

## gist:9785645
package slicks.docs.dao

import scala.slick.driver.PostgresDriver.simple._
import scala.slick.driver._


trait Profile {
  val profile: JdbcProfile
}

## summary
Original text here: https://whydavewhy.com/2013/08/16/loyalty-and-layoffs/
	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
	/*
	* I add this to html files generated with pandoc.
	*/

	html {
	font-size: 100%;
	overflow-y: scroll;
	-webkit-text-size-adjust: 100%;
	-ms-text-size-adjust: 100%;
	}
	# Luke's config for the Zoomer Shell

	# Enable colors and change prompt:
	autoload -U colors && colors
	PS1="%B%{$fg[red]%}[%{$fg[yellow]%}%n%{$fg[green]%}@%{$fg[blue]%}%M %{$fg[magenta]%}%~%{$fg[red]%}]%{$reset_color%}$%b "

	# History in cache directory:
	HISTSIZE=10000
	SAVEHIST=10000
	HISTFILE=~/.cache/zsh/history
	# put this in your .bash_profile
	if [ $ITERM_SESSION_ID ]; then
	export PROMPT_COMMAND='echo -ne "\033];${PWD##*/}\007"; ':"$PROMPT_COMMAND";
	fi

	# Piece-by-Piece Explanation:
	# the if condition makes sure we only screw with $PROMPT_COMMAND if we're in an iTerm environment
	# iTerm happens to give each session a unique $ITERM_SESSION_ID we can use, $ITERM_PROFILE is an option too
	# the $PROMPT_COMMAND environment variable is executed every time a command is run
	# see: ss64.com/bash/syntax-prompt.html
	# see the current limits
	$ sysctl -a \| grep maxproc

	# increase it
	$ sudo sysctl -w kern.maxproc=xxxx
	$ sudo sysctl -w kern.maxprocperuid=xxx

	# run at startup
	$ sudo vim /etc/sysctl.conf
	import_if_available(Ecto.Query)
	# alias MyApp.Repo

	defmodule R do
	# Old habits die hard. Take a random of something. You don't care which.
	# > R.take(SomeSchema)
	def take(schema_or_query) do
	schema_or_query
	\|> limit(1)
	\|> Repo.one()
	package slicks.docs.dao

	import scala.slick.driver.PostgresDriver.simple._
	import scala.slick.driver._


	trait Profile {
	val profile: JdbcProfile
	}