BYbyroot·Aug 21, 2023
Yeah, you can use it to implement a simple (but not necessarily very performant) LRU: https://github.com/SamSaffron/lru_redux/blob/037ee594aded597...
In Ruby's hash is a Swiss-army knifeSamSaffron
lru_redux
Ruby2017–2023
SamSaffron / lru_redux
lru_redux
An efficient optionally thread safe LRU Cache
2Distinct people
2Mentions
0Explicit recommenders
285GitHub stars
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What it is
An efficient optionally thread safe LRU Cache
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Nov 7–Nov 14 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/14/2026, 5:04:57 PM UTC.
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HN mentions by year2 dated mentions
Observed mentions: 2017-05-16 11:39:51 UTC to 2023-08-21 07:36:34 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 |
|---|---|---|---|---|---|
| 2017 | 2017-01-01 00:00:00 UTC | 2018-01-01 00:00:00 UTC | 1 | 0 | 1 |
| 2018 | 2018-01-01 00:00:00 UTC | 2019-01-01 00:00:00 UTC | 0 | 0 | 0 |
| 2019 | 2019-01-01 00:00:00 UTC | 2020-01-01 00:00:00 UTC | 0 | 0 | 0 |
| 2020 | 2020-01-01 00:00:00 UTC | 2021-01-01 00:00:00 UTC | 0 | 0 | 0 |
| 2021 | 2021-01-01 00:00:00 UTC | 2022-01-01 00:00:00 UTC | 0 | 0 | 0 |
| 2022 | 2022-01-01 00:00:00 UTC | 2023-01-01 00:00:00 UTC | 0 | 0 | 0 |
| 2023 | 2023-01-01 00:00:00 UTC | 2024-01-01 00:00:00 UTC | 1 | 0 | 1 |
What Hacker News says
2 sourcesOkay. Thanks. I read the readme that this is more for academic purposes, and saw nyc640 explanation (thanks as well!). But when reading the Readme I wondered "How would this go together with something like https://github.com/SamSaffron/lru_redux ?" Do you have thoughts on that?
I use both the lru_redux as well as https://github.com/jnicklas/memoit in a ruby app of mine, and if another gem (like a memoization scheme using a Cuckoo Filter) would improve performance it would be fun to try it out. But it is of course possible that this is not applicable, or it would just not be faster. I think it should not be an advantage (given that the others will be at its core just a hash map, so you don't need that membership test), but that's why I asked.
In Show HN: Cuckoo Filter in Ruby