gvl_timing

Measures timings for the current thread's GVL state for CRuby.

This will add some (small) overhead to all GVL activity, so may be better to development/test or sampled use rather than continuous timing.

Installation

Install the gem and add to the application's Gemfile by executing:

$ bundle add gvl_timing

Usage

>> timer = GVLTiming.measure { sleep 0.1 }
=> #<GVLTiming::Timer total=0.10s running=0.00s idle=0.10s stalled=0.00s>
>> timer.duration
=> 0.101082
>> timer.cpu_duration
=> 7.4667e-05
>> timer.idle_duration
=> 0.101048
>> timer.stalled_duration
=> 1.0e-06

Development

After checking out the repo, run bin/setup to install dependencies. Then, run rake test to run the tests. You can also run bin/console for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and the created tag, and push the .gem file to rubygems.org.

Contributing

Bug reports and pull requests are welcome on GitHub at https://github.com/jhawthorn/gvl_timing. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the code of conduct.