| Age | Commit message (Collapse) | Author |
|---|
|
This fixes some inconsistencies introduced by that PR.
|
|
[Feature #16495]
|
|
|
|
|
|
|
|
during compilation
|
|
like YJIT. They don't work in the same way yet, but it's nice to make
the naming consistent first so that we will not need to rename them
later.
|
|
|
|
for future extensions.
|
|
Our current implementation of rb_postponed_job_register suffers from
some safety issues that can lead to interpreter crashes (see bug #1991).
Essentially, the issue is that jobs can be called with the wrong
arguments.
We made two attempts to fix this whilst keeping the promised semantics,
but:
* The first one involved masking/unmasking when flushing jobs, which
was believed to be too expensive
* The second one involved a lock-free, multi-producer, single-consumer
ringbuffer, which was too complex
The critical insight behind this third solution is that essentially the
only user of these APIs are a) internal, or b) profiling gems.
For a), none of the usages actually require variable data; they will
work just fine with the preregistration interface.
For b), generally profiling gems only call a single callback with a
single piece of data (which is actually usually just zero) for the life
of the program. The ringbuffer is complex because it needs to support
multi-word inserts of job & data (which can't be atomic); but nobody
actually even needs that functionality, really.
So, this comit:
* Introduces a pre-registration API for jobs, with a GVL-requiring
rb_postponed_job_prereigster, which returns a handle which can be
used with an async-signal-safe rb_postponed_job_trigger.
* Deprecates rb_postponed_job_register (and re-implements it on top of
the preregister function for compatability)
* Moves all the internal usages of postponed job register
pre-registration
|
|
This number works better on yjit-bench (ruby-lsp).
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
They don't need to be global.
|
|
Reordering functions for readability, adding stats whenever possible.
|
|
|
|
|
|
|
|
|
|
|
|
|
|
We used to require MJIT is supported when YJIT is supported. However,
now that RJIT dropped some platforms that YJIT supports, it no longer
makes sense. We should be able to enable only YJIT, and vice versa.
Notes:
Merged-By: k0kubun <takashikkbn@gmail.com>
|
|
|
|
|
|
Notes:
Merged: https://github.com/ruby/ruby/pull/7462
|
|
Notes:
Merged: https://github.com/ruby/ruby/pull/7462
|
|
Notes:
Merged: https://github.com/ruby/ruby/pull/7462
|
