ruby-1.9.3-p194 cumulative performance patch.

0-readme.md

Patched ruby 1.9.3-p194 for 30% faster rails boot

What is?

This script installs a patched version of ruby 1.9.3-p194 with patches for boot-time performance improvements (#66 and #68), and runtime performance improvements (#83 and #84). It also includes the new backported GC from ruby-trunk.

Huge thanks to funny-falcon for the performance patches.

• http://github.com/ruby/ruby/pull/66
• http://github.com/ruby/ruby/pull/68
• http://github.com/ruby/ruby/pull/83
• http://github.com/ruby/ruby/pull/84

What I need?

• rbenv
• ruby-build

OR

• rvm

How do I do?

If you're using rbenv:

curl https://raw.github.com/gist/2600122/rbenv.sh | sh && rbenv global 1.9.3-p194-perf

If you're using rvm:

rvm get head && rvm reinstall 1.9.3-perf --patch falcon

BONUS!

Putting the following in your shell config (eg. ~/.bash_profile) will make Rails even faster, but will increase its memory footprint:

export RUBY_HEAP_MIN_SLOTS=1000000
export RUBY_HEAP_SLOTS_INCREMENT=1000000
export RUBY_HEAP_SLOTS_GROWTH_FACTOR=1
export RUBY_GC_MALLOC_LIMIT=1000000000
export RUBY_HEAP_FREE_MIN=500000

2-1.9.3-p194-patched.sh

build_package_combined_patch() {
  local package_name="$1"

  {
    curl https://raw.github.com/gist/2593385/perf_and_gc.diff | patch -p1
    autoconf
    ./configure --prefix="$PREFIX_PATH" $CONFIGURE_OPTS
    make -j 8
    make install
  } >&4 2>&1

}

require_gcc
install_package "yaml-0.1.4" "http://pyyaml.org/download/libyaml/yaml-0.1.4.tar.gz"
install_package "ruby-1.9.3-p194" "http://ftp.ruby-lang.org/pub/ruby/1.9/ruby-1.9.3-p194.tar.gz" combined_patch

rbenv.sh

VERSION="1.9.3-p194"
curl https://raw.github.com/gist/2600122/2-$VERSION-patched.sh > /tmp/$VERSION-perf
rbenv install /tmp/$VERSION-perf

On Mac OS X Mountain Lion you'll have to remove the require_gcc to work

Install went smoothly, but surprisingly 1.9.3-p194-perf loads rails a little less than a second slower than my falcon-patched 1.9.3-p0...

without perf

[10:36] time rails runner "puts 'hello world'"
hello world

real 0m7.699s
user 0m3.910s
sys 0m1.243s

with perf

[10:37] time rails runner "puts 'hello world'"
hello world

real 0m3.347s
user 0m2.441s
sys 0m0.893s

Thanks!

@cristianbico or install apple-gcc42 from homebrew.

my results are here: https://gist.github.com/3364771

massive diff

On rvm, this is slower than the un-patched rubies for me (OSX 10.8.2) -- rails boots ~25% slower. What am I doing wrong?

Without

hello world
14.35 real 11.72 user 1.66 sys

With

hello world
11.31 real 9.58 user 1.27 sys

So, 3 seconds off a 14-second startup. Probably not going to push this to production or anything.

https://gist.github.com/charkost/cb4f5baeb6529f37218c (fixes broken urls 18/11/2014)