ruby-1.9.3-p0 cumulative performance patch.

0-readme.md

Patched ruby 1.9.3-p0 for 30% faster rails boot

What is?

This script installs a patched version of ruby 1.9.3-p0 with patches to make ruby-debug work again (#47) and boot-time performance improvements (#66 and #68), and runtime performance improvements (#83 and #84).

Huge thanks to funny-falcon for the performance patches.

• http://github.com/ruby/ruby/pull/47
• 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/1688857/rbenv.sh | sh

If you're using rvm:

curl https://raw.github.com/gist/1688857/rvm.sh | sh

(I haven't tested this one, but it should work. Report back if it doesn't!)

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-p0-patched.sh

build_package_combined_patch() {
  local package_name="$1"

  {
    curl https://github.com/ruby/ruby/pull/47.diff | git apply
    curl https://raw.github.com/gist/1658360/cumulative_performance.patch | 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-p0" "http://ftp.ruby-lang.org/pub/ruby/1.9/ruby-1.9.3-p0.tar.gz" combined_patch

rbenv.sh

VERSION="1.9.3-p0"
curl https://raw.github.com/gist/1688857/2-$VERSION-patched.sh > /tmp/$VERSION-perf
rbenv install /tmp/$VERSION-perf

rvm.sh

patchdir=$rvm_path/patches/ruby/1.9.3/p0
mkdir -p $patchdir
curl https://raw.github.com/gist/1658360/cumulative_performance.patch > $patchdir/falcon.patch
rvm install 1.9.3 -n perf --patch $patchdir/falcon.patch
rvm use 1.9.3-perf