Issue #14739 has been updated by ioquatix (Samuel Williams).
Here is the code https://github.com/ioquatix/ruby/tree/fiber-libcoro
I did some preliminary test.
I don't know if there is a standard fiber benchmark/test in Ruby.
I used a simple message passing ring benchmark I found.
```
^_^ > ./build/bin/ruby ./fiber_benchmark.rb 10000 1000
setup time for 10000 fibers: 0.159232
execution time for 1000 messages: 13.581069
^_^ > ./fiber_benchmark.rb 10000 1000
setup time for 10000 fibers: 0.153677
execution time for 1000 messages: 14.630562
```
It was about 8% faster.
I feel like this is still slow. I will need to investigate further. I didn't use stack reuse code path because I was more interested in yield/resume performance, so all fibers are allocated in the first step of the benchmark.
That being said, I would like to know if this is of interest to Ruby, otherwise I won't invest more time into it.
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Feature #14739: Improve fiber yield/resume performance
https://bugs.ruby-lang.org/issues/14739#change-71846
* Author: ioquatix (Samuel Williams)
* Status: Open
* Priority: Normal
* Assignee:
* Target version:
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I am interested to improve Fiber yield/resume performance.
I've used this library before: http://software.schmorp.de/pkg/libcoro.html and handled millions of HTTP requests using it.
I'd suggest to use that library.
As this is used in many places in Ruby (e.g. enumerable) it could be a big performance win across the board.
Here is a nice summary of what was done for RethinkDB: https://rethinkdb.com/blog/making-coroutines-fast/
Does Ruby currently reuse stacks? This is also a big performance win if it's not being done already.
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