ruby-1.9.3-p125 cumulative performance patch, with Xcode 4.3 command line tools compatible.

0-readme.md

Patched ruby 1.9.3-p125 for 30% faster rails boot

What is?

This script installs a patched version of ruby 1.9.3-p125 with patches to make ruby-debug work again (#47) and boot-time performance improvements (#66 and #68), and runtime performance improvements (#83 and #84).

It works with Xcode 4.3 and the clang compiler it ships with its command line tools package.

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
• autoconf (brew update && brew install autoconf)
• Xcode 4.3 with command line tools package

How do I do?

If you're using rbenv:

curl https://raw.github.com/gist/1935250/rbenv.sh | sh

If you're using rvm:

rvm reinstall 1.9.3 --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-p125-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/1859082/e3045dc53595c72490bbaccc90a663b9f9a0f44b/performance_and_backport_gc.patch | patch -p1
    autoconf
    ./configure --prefix="$PREFIX_PATH" $CONFIGURE_OPTS
    make -j 8
    make install
  } >&4 2>&1

}

install_package "yaml-0.1.4" "http://pyyaml.org/download/libyaml/yaml-0.1.4.tar.gz"
install_package "ruby-1.9.3-p125" "http://ftp.ruby-lang.org/pub/ruby/1.9/ruby-1.9.3-p125.tar.gz" combined_patch

rbenv.sh

VERSION="1.9.3-p125"
curl https://raw.github.com/gist/1935250/2-$VERSION-patched.sh > /tmp/$VERSION-perf
CC=`which clang` rbenv install /tmp/$VERSION-perf