JuliaArrays / JuliaArrays/StaticArrays.jl

Should MArray be backed by `Memory`?

Open
#1,320 7 comments 0 reactions 0 assignees View on GitHub

Nobody has claimed this yet.

Dominant language
Julia
Stars
844
Forks
159
Avg merge
3d 21h
Merged PRs (30d)
3

Description

Now that we have Memory, would it make more sense to use that than a mutable struct with a tuple? The current MArray is limited in it's ability to mutate element types that are not straightforward isbitstype and I think that both Memory and MArray only get special allocations if they fit within Julia's GC pool sizes.

Contributor guide

No contributing guide indexed for this repository

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by comparing the current mutable-struct-and-tuple implementation of MArray with Julia's Memory type and the cited Julia GC pool sizes. Investigate the reported mutation limitations for non-isbitstype element types and determine whether backing MArray with Memory is appropriate; done means reaching and documenting a resolved design decision.

Written by the indexing model from the issue text.

Assessment

Tech stack
julia
Domain
performance
Issue type
Refactor
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

Get new issues in your inbox

A short digest of beginner-friendly GitHub issues.