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## Preamble

There are lots of tools out there that set power management, some more transparent (powertop), some less so (laptop-mode). Often it is hard to know what exactly the tool is doing to improvement power management. Here I would like to document some of the things I do to improve power efficiency and sometimes performance as well.

/etc/sysctl.d/99-sysctl.conf
> # To fix Dropbox not being able to handle too many files
> fs.inotify.max_user_watches = 524288
> 
> # VM writeback timeout (suggestion from powertop: In hundredths of a second, this is how often pdflush wakes up to write data to disk.)
> vm.dirty_writeback_centisecs = 1500

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/**
 * Event loop.
 *
 * Read details here:
 * http://dmitrysoshnikov.com/ecmascript/javascript-the-core-2nd-edition/#job
 *
 * by Dmitry Soshnikov <dmitry.soshnikov@gmail.com>
 */

/**

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/**
 * Filter object properties.
 *
 * by Dmitry Soshnikov <dmitry.soshnikov@gmail.com>
 * MIT Style license, 2019
 */

const filterProps = (
  [p1, p2, p3],
  {

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/**
 * Async iterators simple example.
 *
 * by Dmitry Soshnikov <dmitry.soshnikov@gmail.com>
 * MIT Style License, 2018
 */

async function* streamChunks() {
  yield genChunk(1);
  yield genChunk(2);

askamiroff

# Helpers

def git_update(message)
  git :add => ".", :commit => "-m '#{message}'"
end

def git_remove(file)
  git :rm => file
end

askamiroff

This guide explains the way to setup a production server using Capistrano.

Setup Capistrano on LOCAL

• Capistrano is a development gem which assist the developer to run commands on the production server (something like a Heroku toolbelt)
• Hence, it is installed and configured on developer's computer

# Gemfile

# Use Capistrano for deployment

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PS1='\[\033[31m\]\w\[\033[0m\] $ '

export EDITOR=vim

alias st='git status -sb'

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Capybara Actions

# Anchor
click_link 'Save'

# Button
click_button 'awesome'

# Both above

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=Navigating=
    visit('/projects')
    visit(post_comments_path(post))

=Clicking links and buttons=
    click_link('id-of-link')
    click_link('Link Text')
    click_button('Save')
    click('Link Text') # Click either a link or a button
    click('Button Value')

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This list is based on aliases_spec.rb.

You can see also Module: RSpec::Matchers API.

matcher	aliased to	description
a_truthy_value	be_truthy	a truthy value
a_falsey_value	be_falsey	a falsey value
be_falsy	be_falsey	be falsy
a_falsy_value	be_falsey	a falsy value