Added minimagick for comparison to ruby-vps

.ruby-gemset

@@ -0,0 +1 @@
+node-ruby-img

.ruby-version

@@ -0,0 +1 @@
+ruby-2.4.2

Gemfile

@@ -1,3 +1,4 @@
 source "https://rubygems.org"
 
 gem 'ruby-vips'
+gem 'mini_magick'

Rakefile

@@ -1,4 +1,9 @@
 namespace :run do
+  desc "Run Ruby Minimagick benchmark"
+  task "ruby:mini" do
+    sh "ruby ruby_io_speed_mm.rb"
+  end
+
   desc "Run Ruby benchmark"
   task :ruby do
     sh "ruby ruby_io_speed.rb"
@@ -15,7 +20,7 @@ namespace :run do
   end
 
   desc "Run all benchmarks"
-  task :all => [:ruby, :node, "node:streams"]
+  task :all => ["ruby:mini", :ruby, :node, "node:streams"]
 end
 
 namespace :install do

mem.rb

@@ -0,0 +1,29 @@
+require 'thread'
+
+# Credits: http://zogovic.com/post/59091704817/memory-usage-monitor-in-ruby
+
+class MemoryUsageMonitor
+  attr_reader :peak_memory, :log
+
+  def initialize(frequency: 0.25)
+    @frequency = frequency
+    @peak_memory = 0
+    @log = []
+  end
+
+  def start
+    @thread = Thread.new do
+      while true do
+        puts "#{Process::pid}"
+        memory = `ps -o rss -p #{Process::pid}`.chomp.split("\n").last.strip.to_i
+        @log.push memory
+        @peak_memory = [memory, @peak_memory].max
+        sleep @frequency
+      end
+    end
+  end
+
+  def stop
+    Thread.kill(@thread)
+  end
+end

node_io_speed.js

@@ -12,7 +12,7 @@ var SIZES = {
 var performUpload = function(size, next){
   var name = size + ".jpg"
   sharp('cakes.jpg')
-    .resize(SIZES[size][0], SIZES[size][1])
+    .resize(SIZES[size][0])
     .toFile(name, next);
 }
 

node_io_speed_streams.js

@@ -15,7 +15,7 @@ var performUpload = function(size, next){
   var resizer = function(){
     var client = sharp()
     return client.resize.
-      apply(client, SIZES[size])
+      apply(client, [SIZES[size][0]])
   }
 
   var stream = image.pipe(resizer(size)).pipe(fs.createWriteStream(name))

ruby_io_speed.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require "vips"
 
 ORIGINAL = "cakes.jpg"
@@ -17,4 +18,6 @@
   end
 end.each(&:join)
 
-puts "Took: #{((Time.now - start) * 1000).to_i}ms"
+stop = Time.now
+
+puts "Took: #{((stop - start) * 1000).to_i}ms"