CHERIoT-Platform/cheriot-rtos

Allocator: consider allocation _rate_ quotas as well

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#660 opened on Feb 9, 2026

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Description

Skimming https://dl.acm.org/doi/pdf/10.1145/3658644.3690246 got me thinking that we might want to be able to use quotas to rate-limit allocations. I'm not sure what policies would look like, and how we might concisely express them in a few bits of quota state, but it could be a fun thing to think about.

Contributor guide

Research direction
Explore existing allocation rate limiting mechanisms and propose a design for expressing rate quotas in the allocator state.
Tech stack
cpp
Domain
backend
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-2 days
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Fresh
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Needs investigation
Prerequisites
C++memory allocation concepts
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
20