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Introduce support for dumping Rails process heap at the end of a benchmark run

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This commit is contained in:
Lourens Naudé
2014-12-07 22:54:35 +00:00
parent c273a6d1d4
commit fb60daa867
4 changed files with 36 additions and 3 deletions
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17
script/bench.rb
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@@ -10,6 +10,7 @@ require "fileutils"
@best_of = 1
@mem_stats = false
@unicorn = false
@dump_heap = false
opts = OptionParser.new do |o|
o.banner = "Usage: ruby bench.rb [options]"
@@ -26,6 +27,11 @@ opts = OptionParser.new do |o|
o.on("-b", "--best_of [NUM]", "Number of times to run the bench taking best as result") do |i|
@best_of = i.to_i
end
o.on("-d", "--heap_dump") do
@dump_heap = true
# We need an env var for config/boot.rb to enable allocation tracing prior to framework init
ENV['DISCOURSE_DUMP_HEAP'] = "1"
end
o.on("-m", "--memory_stats") do
@mem_stats = true
end
@@ -103,18 +109,18 @@ end
ENV["RAILS_ENV"] = "profile"
gc_env_vars = %w(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)
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)
if @include_env
puts "Running with tuned environment"
ENV["RUBY_GC_MALLOC_LIMIT"] = "50_000_000"
gc_env_vars - %w(RUBY_GC_MALLOC_LIMIT).each do |v|
discourse_env_vars - %w(RUBY_GC_MALLOC_LIMIT).each do |v|
ENV.delete v
end
else
# clean env
puts "Running with the following custom environment"
gc_env_vars.each do |w|
discourse_env_vars.each do |w|
puts "#{w}: #{ENV[w]}"
end
end
@@ -256,6 +262,11 @@ begin
puts open("http://127.0.0.1:#{@port}/admin/memory_stats#{append}").read
end
if @dump_heap
puts
puts open("http://127.0.0.1:#{@port}/admin/dump_heap#{append}").read
end
if @result_file
File.open(@result_file,"wb") do |f|
f.write(results)