284 lines
6.7 KiB
Ruby
284 lines
6.7 KiB
Ruby
require "socket"
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require "csv"
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require "yaml"
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require "optparse"
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require "fileutils"
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@include_env = false
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@result_file = nil
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@iterations = 500
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@best_of = 1
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@mem_stats = false
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@unicorn = false
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@dump_heap = false
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opts = OptionParser.new do |o|
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o.banner = "Usage: ruby bench.rb [options]"
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o.on("-n", "--with_default_env", "Include recommended Discourse env") do
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@include_env = true
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end
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o.on("-o", "--output [FILE]", "Output results to this file") do |f|
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@result_file = f
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end
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o.on("-i", "--iterations [ITERATIONS]", "Number of iterations to run the bench for") do |i|
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@iterations = i.to_i
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end
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o.on("-b", "--best_of [NUM]", "Number of times to run the bench taking best as result") do |i|
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@best_of = i.to_i
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end
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o.on("-d", "--heap_dump") do
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@dump_heap = true
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# We need an env var for config/boot.rb to enable allocation tracing prior to framework init
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ENV['DISCOURSE_DUMP_HEAP'] = "1"
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end
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o.on("-m", "--memory_stats") do
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@mem_stats = true
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end
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o.on("-u", "--unicorn", "Use unicorn to serve pages as opposed to thin") do
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@unicorn = true
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end
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end
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opts.parse!
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def run(command, opt = nil)
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exit_status =
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if opt == :quiet
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system(command, out: "/dev/null", err: :out)
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else
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system(command, out: $stdout, err: :out)
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end
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exit unless exit_status
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end
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begin
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require 'facter'
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rescue LoadError
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run "gem install facter"
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puts "please rerun script"
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exit
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end
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@timings = {}
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def measure(name)
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start = Time.now
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yield
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@timings[name] = ((Time.now - start) * 1000).to_i
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end
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def prereqs
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puts "Be sure to following packages are installed:
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sudo apt-get -y install build-essential libssl-dev libyaml-dev git libtool libxslt-dev libxml2-dev libpq-dev gawk curl pngcrush python-software-properties software-properties-common tasksel
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sudo tasksel install postgresql-server
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OR
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apt-get install postgresql-server^
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sudo apt-add-repository -y ppa:rwky/redis
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sudo apt-get update
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sudo apt-get install redis-server
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"
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end
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puts "Running bundle"
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if run("bundle", :quiet)
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puts "Quitting, some of the gems did not install"
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prereqs
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exit
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end
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puts "Ensuring config is setup"
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%x{which ab > /dev/null 2>&1}
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unless $? == 0
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abort "Apache Bench is not installed. Try: apt-get install apache2-utils or brew install ab"
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end
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unless File.exists?("config/database.yml")
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puts "Copying database.yml.development.sample to database.yml"
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`cp config/database.yml.development-sample config/database.yml`
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end
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unless File.exists?("config/redis.yml")
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puts "Copying redis.yml.sample to redis.yml"
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`cp config/redis.yml.sample config/redis.yml`
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end
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ENV["RAILS_ENV"] = "profile"
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discourse_env_vars = %w(DISCOURSE_DUMP_HEAP RUBY_GC_HEAP_INIT_SLOTS RUBY_GC_HEAP_FREE_SLOTS RUBY_GC_HEAP_GROWTH_FACTOR RUBY_GC_HEAP_GROWTH_MAX_SLOTS RUBY_GC_MALLOC_LIMIT RUBY_GC_OLDMALLOC_LIMIT RUBY_GC_MALLOC_LIMIT_MAX RUBY_GC_OLDMALLOC_LIMIT_MAX RUBY_GC_MALLOC_LIMIT_GROWTH_FACTOR RUBY_GC_OLDMALLOC_LIMIT_GROWTH_FACTOR RUBY_GC_HEAP_OLDOBJECT_LIMIT_FACTOR)
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if @include_env
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puts "Running with tuned environment"
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ENV["RUBY_GC_MALLOC_LIMIT"] = "50_000_000"
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discourse_env_vars - %w(RUBY_GC_MALLOC_LIMIT).each do |v|
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ENV.delete v
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end
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else
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# clean env
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puts "Running with the following custom environment"
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discourse_env_vars.each do |w|
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puts "#{w}: #{ENV[w]}"
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end
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end
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def port_available? port
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server = TCPServer.open("0.0.0.0", port)
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server.close
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true
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rescue Errno::EADDRINUSE
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false
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end
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@port = 60079
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while !port_available? @port
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@port += 1
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end
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puts "Ensuring profiling DB exists and is migrated"
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puts `bundle exec rake db:create`
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`bundle exec rake db:migrate`
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puts "Timing loading Rails"
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measure("load_rails") do
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`bundle exec rake middleware`
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end
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puts "Populating Profile DB"
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run("bundle exec ruby script/profile_db_generator.rb")
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puts "Getting api key"
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api_key = `bundle exec rake api_key:get`.split("\n")[-1]
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def bench(path)
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puts "Running apache bench warmup"
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add = ""
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add = "-c 3 " if @unicorn
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`ab #{add} -n 10 "http://127.0.0.1:#{@port}#{path}"`
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puts "Benchmarking #{path}"
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`ab -n #{@iterations} -e tmp/ab.csv "http://127.0.0.1:#{@port}#{path}"`
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percentiles = Hash[*[50, 75, 90, 99].zip([]).flatten]
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CSV.foreach("tmp/ab.csv") do |percent, time|
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percentiles[percent.to_i] = time.to_i if percentiles.key? percent.to_i
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end
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percentiles
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end
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begin
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# critical cause cache may be incompatible
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puts "precompiling assets"
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run("bundle exec rake assets:precompile")
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pid = if @unicorn
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ENV['UNICORN_PORT'] = @port.to_s
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FileUtils.mkdir_p(File.join('tmp', 'pids'))
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spawn("bundle exec unicorn -c config/unicorn.conf.rb")
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else
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spawn("bundle exec thin start -p #{@port}")
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end
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while port_available? @port
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sleep 1
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end
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puts "Starting benchmark..."
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append = "?api_key=#{api_key}&api_username=admin1"
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# asset precompilation is a dog, wget to force it
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run "wget http://127.0.0.1:#{@port}/ -o /dev/null"
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tests = [
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["categories", "/categories"],
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["home", "/"],
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["topic", "/t/oh-how-i-wish-i-could-shut-up-like-a-tunnel-for-so/69"]
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# ["user", "/users/admin1/activity"],
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]
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tests = tests.map{|k,url| ["#{k}_admin", "#{url}#{append}"]} + tests
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# NOTE: we run the most expensive page first in the bench
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def best_of(a, b)
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return a unless b
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return b unless a
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a[50] < b[50] ? a : b
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end
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results = {}
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@best_of.times do
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tests.each do |name, url|
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results[name] = best_of(bench(url),results[name])
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end
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end
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puts "Your Results: (note for timings- percentile is first, duration is second in millisecs)"
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facts = Facter.to_hash
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facts.delete_if{|k,v|
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!["operatingsystem","architecture","kernelversion",
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"memorysize", "physicalprocessorcount", "processor0",
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"virtual"].include?(k)
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}
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run("RAILS_ENV=profile bundle exec rake assets:clean")
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def get_mem(pid)
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YAML.load `ruby script/memstats.rb #{pid} --yaml`
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end
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mem = get_mem(pid)
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results = results.merge({
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"timings" => @timings,
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"ruby-version" => "#{RUBY_VERSION}-p#{RUBY_PATCHLEVEL}",
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"rss_kb" => mem["rss_kb"],
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"pss_kb" => mem["pss_kb"]
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}).merge(facts)
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if @unicorn
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child_pids = `ps --ppid #{pid} | awk '{ print $1; }' | grep -v PID`.split("\n")
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child_pids.each do |child|
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mem = get_mem(child)
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results["rss_kb_#{child}"] = mem["rss_kb"]
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results["pss_kb_#{child}"] = mem["pss_kb"]
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end
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end
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puts results.to_yaml
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if @mem_stats
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puts
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puts open("http://127.0.0.1:#{@port}/admin/memory_stats#{append}").read
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end
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if @dump_heap
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puts
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puts open("http://127.0.0.1:#{@port}/admin/dump_heap#{append}").read
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end
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if @result_file
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File.open(@result_file,"wb") do |f|
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f.write(results)
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end
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end
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# TODO include Facter.to_hash ... for all facts
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ensure
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Process.kill "KILL", pid
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end
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