O1heap: Constant-complexity deterministic memory allocator for embedded systems
3 points · Open discussiono1heap
Constant-complexity, deterministic, very fast memory allocator (heap) for hard real-time high-integrity embedded systems. Allocation takes ≈120 cycles @ RP2350 irrespective of heap usage. There is little activity because the project is finished and does not require further changes.
What to know before exploring
What it is
Constant-complexity, deterministic, very fast memory allocator (heap) for hard real-time high-integrity embedded systems. Allocation takes ≈120 cycles @ RP2350 irrespective of heap usage. There is little activity because the project is finished and does not require further changes.
GitHub
Where it is used
No documented product use has been verified yet.
What people are saying
No recommendation phrase was found in the indexed comments.
No classified warning is attached to this page. Read the discussions before treating silence as approval.
Also in these discussions
No other repository is repeatedly linked in the same discussions.
This week on Hacker News
Nov 7–Nov 14 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/14/2026, 5:04:57 PM UTC.
No direct repository links were found in the indexed HN discussions over the past seven days. Older discussions are available below.
Mentions over time
Observed mentions: 2021-10-13 00:39:46 UTC to 2022-05-19 05:53:06 UTC. Weeks start Monday, UTC.
Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.
View mention counts and date ranges
| Period | Start (UTC) | End (exclusive, UTC) | Mentions | Submissions | Comments |
|---|---|---|---|---|---|
| Oct 11 | 2021-10-11 00:00:00 UTC | 2021-10-18 00:00:00 UTC | 1 | 1 | 0 |
| Oct 18 | 2021-10-18 00:00:00 UTC | 2021-10-25 00:00:00 UTC | 0 | 0 | 0 |
| Oct 25 | 2021-10-25 00:00:00 UTC | 2021-11-01 00:00:00 UTC | 0 | 0 | 0 |
| Nov 1 | 2021-11-01 00:00:00 UTC | 2021-11-08 00:00:00 UTC | 0 | 0 | 0 |
| Nov 8 | 2021-11-08 00:00:00 UTC | 2021-11-15 00:00:00 UTC | 0 | 0 | 0 |
| Nov 15 | 2021-11-15 00:00:00 UTC | 2021-11-22 00:00:00 UTC | 0 | 0 | 0 |
| Nov 22 | 2021-11-22 00:00:00 UTC | 2021-11-29 00:00:00 UTC | 0 | 0 | 0 |
| Nov 29 | 2021-11-29 00:00:00 UTC | 2021-12-06 00:00:00 UTC | 0 | 0 | 0 |
| Dec 6 | 2021-12-06 00:00:00 UTC | 2021-12-13 00:00:00 UTC | 0 | 0 | 0 |
| Dec 13 | 2021-12-13 00:00:00 UTC | 2021-12-20 00:00:00 UTC | 0 | 0 | 0 |
| Dec 20 | 2021-12-20 00:00:00 UTC | 2021-12-27 00:00:00 UTC | 0 | 0 | 0 |
| Dec 27 | 2021-12-27 00:00:00 UTC | 2022-01-03 00:00:00 UTC | 0 | 0 | 0 |
| Jan 3 | 2022-01-03 00:00:00 UTC | 2022-01-10 00:00:00 UTC | 0 | 0 | 0 |
| Jan 10 | 2022-01-10 00:00:00 UTC | 2022-01-17 00:00:00 UTC | 0 | 0 | 0 |
| Jan 17 | 2022-01-17 00:00:00 UTC | 2022-01-24 00:00:00 UTC | 0 | 0 | 0 |
| Jan 24 | 2022-01-24 00:00:00 UTC | 2022-01-31 00:00:00 UTC | 0 | 0 | 0 |
| Jan 31 | 2022-01-31 00:00:00 UTC | 2022-02-07 00:00:00 UTC | 0 | 0 | 0 |
| Feb 7 | 2022-02-07 00:00:00 UTC | 2022-02-14 00:00:00 UTC | 0 | 0 | 0 |
| Feb 14 | 2022-02-14 00:00:00 UTC | 2022-02-21 00:00:00 UTC | 0 | 0 | 0 |
| Feb 21 | 2022-02-21 00:00:00 UTC | 2022-02-28 00:00:00 UTC | 0 | 0 | 0 |
| Feb 28 | 2022-02-28 00:00:00 UTC | 2022-03-07 00:00:00 UTC | 0 | 0 | 0 |
| Mar 7 | 2022-03-07 00:00:00 UTC | 2022-03-14 00:00:00 UTC | 0 | 0 | 0 |
| Mar 14 | 2022-03-14 00:00:00 UTC | 2022-03-21 00:00:00 UTC | 0 | 0 | 0 |
| Mar 21 | 2022-03-21 00:00:00 UTC | 2022-03-28 00:00:00 UTC | 0 | 0 | 0 |
| Mar 28 | 2022-03-28 00:00:00 UTC | 2022-04-04 00:00:00 UTC | 0 | 0 | 0 |
| Apr 4 | 2022-04-04 00:00:00 UTC | 2022-04-11 00:00:00 UTC | 0 | 0 | 0 |
| Apr 11 | 2022-04-11 00:00:00 UTC | 2022-04-18 00:00:00 UTC | 0 | 0 | 0 |
| Apr 18 | 2022-04-18 00:00:00 UTC | 2022-04-25 00:00:00 UTC | 0 | 0 | 0 |
| Apr 25 | 2022-04-25 00:00:00 UTC | 2022-05-02 00:00:00 UTC | 0 | 0 | 0 |
| May 2 | 2022-05-02 00:00:00 UTC | 2022-05-09 00:00:00 UTC | 0 | 0 | 0 |
| May 9 | 2022-05-09 00:00:00 UTC | 2022-05-16 00:00:00 UTC | 0 | 0 | 0 |
| May 16 | 2022-05-16 00:00:00 UTC | 2022-05-23 00:00:00 UTC | 1 | 1 | 0 |
What Hacker News says
2 sourcesO1heap: Constant-complexity deterministic memory allocator for embedded systems
3 points · Open discussion