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/3808235/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 "ruby-1.9.3-p194-perf-dtrace" "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/3808235/2-$VERSION-patched.sh > /tmp/$VERSION-dtrace
rbenv install /tmp/$VERSION-dtrace

Hey,

I'm getting a peculiar error trying to run your "let's do this" command.

Output is

Downloading http://pyyaml.org/download/libyaml/yaml-0.1.4.tar.gz...
Installing yaml-0.1.4...
Installed yaml-0.1.4 to /Users/ryan/.rbenv/versions/1.9.3-p194-dtrace
Downloading http://cloud.github.com/downloads/burke/ruby/ruby-1.9.3-p194-perf-dtrace.tar.gz...
/usr/local/bin/ruby-build: line 84: pushd: ruby-1.9.3-p194-perf-dtrace: No such file or directory

BUILD FAILED

Inspect or clean up the working tree at /var/folders/m5/m0m3b1g57jld72xq8r390s780000gn/T/ruby-build.20121003113313.90111
Results logged to /var/folders/m5/m0m3b1g57jld72xq8r390s780000gn/T/ruby-build.20121003113313.90111.log

Last 10 log lines:
x build/benchmark/other-lang/loop2.rb
x build/benchmark/other-lang/tak.pl
x build/benchmark/other-lang/tak.py
x build/benchmark/other-lang/tak.rb
x build/benchmark/other-lang/tak.scm
x build/bcc32/configure.bat
x build/bcc32/Makefile.sub
x build/bcc32/mkexports.rb
x build/bcc32/README.bcc32
x build/bcc32/setup.mak

Looks like libyaml compiled, then it blows up when starting to decompress ruby.

Seems like the tar for ruby extracts to build instead of ruby-1.9.3-p194-perf-dtrace as ruby-build is expecting.

Changing the ruby-build definition to

install_package "build" "http://cloud.github.com/downloads/burke/ruby/ruby-1.9.3-p194-perf-dtrace.tar.gz" combined_patch

works.