0-readme.md

Ruby 1.9.3-p194 with DTrace probes, Perf Patches, and backported COW-friendly GC

Overview

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

Many thanks to funny-falcon for the performance patches and to Aaron Patterson for the DTrace instrumentation.

• http://github.com/tenderlove/ruby/tree/probes
• 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

Requirements

• rbenv
• ruby-build

You will also need a C Compiler. If you're on Linux, you probably already have one or know how to install one. On OS X, you should install XCode, and brew install autoconf using homebrew.

Ok, let's do this!

curl https://raw.github.com/gist/3874482/rbenv.sh | sh ; rbenv global 1.9.3-p194-dtrace

Warning: ruby*::vm_exec_core:function-* seem to be broken, causing SystemStackErrors in the ruby process you instrument.

2-1.9.3-p194-patched.sh

build_package_combined_patch() {
  local package_name="$1"

  {
    autoconf
    ./configure --prefix="$PREFIX_PATH" $CONFIGURE_OPTS
    make probes.h
    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"
# You can see the source for this package at https://github.com/burke/ruby/commits/work
install_package "build" "http://cloud.github.com/downloads/burke/ruby/ruby-1.9.3-p194-perf-dtrace.tar.gz" combined_patch

rbenv.sh

VERSION="1.9.3-p194"
curl https://raw.github.com/gist/3874482/2-$VERSION-patched.sh > /tmp/$VERSION-dtrace
rbenv install /tmp/$VERSION-dtrace