Over time, I have developed a number of patches to MRI ruby which I use in all my projects. I maintain them using stgit. This repository provides them as patchsets for RVM.
They are also frequently merged into the main rvm repository, so usually you can use them directly after installing/updating rvm.
For recent ruby versions, many of the patches have become obsolete. For example, for 2.3.x and 2.4.x, the patches mainly enhance GC time and object allocation tracking used by ruby-prof and my time_bandits gem.
To use the a recent version of the patchsets, just update rvm:
rvm get master # OR
rvm get stable
If rvm isn't update to date yet, or you can easily install them from this repository:
- clone the repository to some convenient place
- cd into the top level directory
- run
install.sh
This will automatically remove old versions of the patchsets.
Note: if you are using zsh you might experience problems. It seems that switching to bash fixes these (see #20).
If you want to simply replace your normal rubies with patched versions, reinstall them with the following commands:
rvm reinstall 1.9.3 --patch railsexpress
rvm reinstall 2.0.0 --patch railsexpress
rvm reinstall 2.1.8 --patch railsexpress
rvm reinstall 2.2.10 --patch railsexpress
rvm reinstall 2.3.8 --patch railsexpress
rvm reinstall 2.4.9 --patch railsexpress
rvm reinstall 2.5.7 --patch railsexpress
rvm reinstall 2.6.5 --patch railsexpress
rvm reinstall 2.7.0 --patch railsexpress
If you don't want to mess up your vanilla rubies, pass a -n flag to rvm when installing
the patches:
rvm install 1.9.3 --patch railsexpress -n railsexpress
rvm install 2.0.0 --patch railsexpress -n railsexpress
rvm install 2.1.8 --patch railsexpress -n railsexpress
rvm install 2.2.10 --patch railsexpress -n railsexpress
rvm install 2.3.8 --patch railsexpress -n railsexpress
rvm install 2.4.9 --patch railsexpress -n railsexpress
rvm install 2.5.7 --patch railsexpress -n railsexpress
rvm install 2.6.5 --patch railsexpress -n railsexpress
rvm install 2.7.0 --patch railsexpress -n railsexpress
or use rvm's name parsing magic:
rvm install 1.9.3-railsexpress --patch railsexpress
rvm install 2.0.0-railsexpress --patch railsexpress
rvm install 2.1.8-railsexpress --patch railsexpress
rvm install 2.2.10-railsexpress --patch railsexpress
rvm install 2.3.8-railsexpress --patch railsexpress
rvm install 2.4.9-railsexpress --patch railsexpress
rvm install 2.5.7-railsexpress --patch railsexpress
rvm install 2.6.5-railsexpress --patch railsexpress
rvm install 2.7.0-railsexpress --patch railsexpress
This will then require you to specify the ruby version for rvm like so:
rvm use 2.7.0-railsexpress
The patches are for specific versions of ruby. They might work with later versions, but there's no guarantee. The following versions are currently supported:
1.9.3-p392 # outdated, please use 1.9.3-p547
1.9.3-p484 # outdated, please use 1.9.3-p547
1.9.3-p545 # outdated, please use 1.9.3-p547
1.9.3-p547 # current rvm default for MRI-ruby 1.9.3
2.0.0-p353 # outdated, please use 2.0.0-p648
2.0.0-p451 # outdated, please use 2.0.0-p648
2.0.0-p481 # outdated, please use 2.0.0-p648
2.0.0-p645 # outdated, please use 2.0.0-p648
2.0.0-p647 # outdated, please use 2.0.0-p648
2.0.0-p648 # current rvm default for MRI-ruby 2.0.0
2.1.0 # starting with 2.1.0, patchlevels are no longer used upstream
2.1.1 # outdated, please use 2.1.8
2.1.2 # outdated, please use 2.1.8
2.1.3 # outdated, please use 2.1.8
2.1.4 # outdated, please use 2.1.8
2.1.5 # outdated, please use 2.1.8
2.1.6 # outdated, please use 2.1.8
2.1.7 # outdated, please use 2.1.8
2.1.8 # current rvm default for 2.1 branch
2.2.0 # outdated, please use 2.2.10
2.2.1 # outdated, please use 2.2.10
2.2.2 # outdated, please use 2.2.10
2.2.3 # outdated, please use 2.2.10
2.2.4 # outdated, please use 2.2.10
2.2.5 # outdated, please use 2.2.10
2.2.6 # outdated, please use 2.2.10
2.2.7 # outdated, please use 2.2.10
2.2.8 # outdated, please use 2.2.10
2.2.9 # outdated, please use 2.2.10
2.2.10 # current rvm default for 2.2 branch
2.3.3 # outdated, please use 2.3.8
2.3.4 # outdated, please use 2.3.8
2.3.5 # outdated, please use 2.3.8
2.3.6 # outdated, please use 2.3.8
2.3.7 # outdated, please use 2.3.7
2.3.8 # current rvm default for 2.3 branch
2.4.0 # outdated, please use 2.4.9
2.4.1 # outdated, please use 2.4.9
2.4.2 # outdated, please use 2.4.9
2.4.3 # outdated, please use 2.4.9
2.4.4 # outdated, please use 2.4.9
2.4.5 # outdated, please use 2.4.9
2.4.6 # outdated, please use 2.4.9
2.4.9 # current rvm default for 2.4 branch
2.5.0 # outdated, please use 2.5.7
2.5.1 # outdated, please use 2.5.7
2.5.3 # outdated, please use 2.5.7
2.5.4 # outdated, please use 2.5.7
2.5.5 # outdated, please use 2.5.7
2.5.6 # outdated, please use 2.5.7
2.5.7 # current rvm default for 2.5 branch
2.6.0 # outdated, please use 2.6.5
2.6.1 # outdated, please use 2.6.5
2.6.2 # outdated, please use 2.6.5
2.6.3 # outdated, please use 2.6.5
2.6.4 # outdated, please use 2.6.5
2.6.5 # current rvm default for 2.6 branch
2.7.0 # current rvm default for 2.7 branch
In order to make some patch level N the default for rvm, add the line(s)
ruby_1.9.3_patch_level=N
ruby_2.0.0_patch_level=N
# invalid after version 2.1.0
to $rvm_path/user/db.
To enable heap dump support, pass the --enable-gcdebug option to the rvm install command.
rvm install 1.9.3 --patch railsexpress -n gcdebug -C --enable-gcdebug
rvm install 2.0.0 --patch railsexpress -n gcdebug -C --enable-gcdebug
Note that I haven't gotten around to implement heap dump support yet for Ruby versions 2.1 and higher. There are some gems built around the heap dump support provided by Ruby natively.
If rvm cannot configure your ruby, update your rvm install.
If you're like me and prefer to manage the libraries needed for installing ruby yourself, for example using MacPorts or HomeBrew, then you might need to tell the ruby compilation process where these libraries are:
rvm reinstall 1.9.3 --patch railsexpress -C --with-opt-dir=/opt/local
For up to date rvm installs, use the rvm autolib(s) feature instead.
If you want to install versions earlier than 2.0.0, you must install gcc-4.2.
With MacPorts, this is as easy as
sudo port install apple-gcc42
sudo ln -s /opt/local/bin/gcc-apple-4.2 /usr/bin/gcc-4.2
For 2.x, clang should work fine.
Additionally, when compiling ruby, you might need to set
CPPFLAGS=-I/opt/X11/include
Script install.sh will set CPPFLAGS automatically for you.
You can install more recent ruby versions from the ruby source repositories using rvm's branch install feature. Example:
rvm install 2.0.0-head --patch railsexpress -n railsexpress
You can then use it with the command
rvm use 2.0.0-head-railsexpress
On 2.1, 2.2, 2.3, 2.4, 2.5, 2.6 and 2.7 you can install head similarly:
rvm install 2.7-head --patch railsexpress -n railsexpress
If you find problems with the patches, please do not send pull requests which patch patches. I will ignore these.
Instead, add new patches on top of the existing ones. Then they will have a chance.
All patches are provided without any warranty. Use at your own risk!
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Some of the patches are based on the work of others
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Some of the the patches are included in ruby enterprise edition
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The set of integrated patches depend on the ruby version
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A modified version of my GC patches have been included in stock ruby
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sigvtalrm patch: http://timetobleed.com/ruby-threading-bugfix-small-fix-goes-a-long-way
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malloc size tracking: http://blog.pluron.com/2008/02/memory-profilin.html
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object allocation tracking: http://rubyforge.org/tracker/index.php?func=detail&aid=11497&group_id=426&atid=1700
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caller for all threads: http://ph7spot.com/musings/caller-for-all-threads
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load performance patch: https://github.com/ruby/ruby/commit/9ce69e7cef1272c86a93eeb9a1888fe6d2a94704#load.c
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optimized hashes: https://gist.github.com/4136373
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array as queue: https://gist.github.com/4136373