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A C++ implementation of a fast hash map and hash set using hopscotch hashing
⚡️ Hopscotch Hashing: Fast Data Retrieval
Hopscotch hashing enables fast data retrieval with low latency, significantly improving performance in applications requiring rapid lookups, such as caching and data deduplication. This technique minimizes collisions, ensuring efficient storage and retrieval of key-value pairs.
2:05 am, June 27, 2026
guid
https://news.ycombinator.com/item?id=48692090
source_url
https://github.com/Tessil/hopscotch-map
author_name
gjvc
id: 4226
uid: idCwj
insdate: 2026-06-27 02:05:24
title: A C++ implementation of a fast hash map and hash set using hopscotch hashing
additional:
Hopscotch hashing enables fast data retrieval with low latency, significantly improving performance in applications requiring rapid lookups, such as caching and data deduplication. This technique minimizes collisions, ensuring efficient storage and retrieval of key-value pairs.
category: Hacker News
md5:
guid: https://news.ycombinator.com/item?id=48692090
source_url: https://github.com/Tessil/hopscotch-map
updated:
image:
author_name: gjvc
author_link:
uid: idCwj
insdate: 2026-06-27 02:05:24
title: A C++ implementation of a fast hash map and hash set using hopscotch hashing
additional:
⚡️ Hopscotch Hashing: Fast Data Retrieval
Hopscotch hashing enables fast data retrieval with low latency, significantly improving performance in applications requiring rapid lookups, such as caching and data deduplication. This technique minimizes collisions, ensuring efficient storage and retrieval of key-value pairs.
category: Hacker News
md5:
guid: https://news.ycombinator.com/item?id=48692090
source_url: https://github.com/Tessil/hopscotch-map
updated:
image:
author_name: gjvc
author_link:
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- Ask HN: Academic study on AI's impact on software development – want to join?
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- Ask HN: Have top AI research institutions just given up on the idea of safety?
- Ask HN: How are you all staying sane?
- Ask HN: How did you land your first projects as a solo engineer/consultant?
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- Ask HN: How is AI-assisted coding going for you professionally?
- Ask HN: How to Be Alone?
- Ask HN: How to be SOC2 Type 2 compliant as a solo-entreprenuer?
- Ask HN: Is "no source code was copied" still a sufficient copyright defense?
- Ask HN: Is GitHub preparing to go behind a login wall?
- Ask HN: Is anyone experimenting with different ways of using LLMs for coding?
- Ask HN: Is anyone working at least 4 hours daily on an Apple Vision Pro?
- Ask HN: Is it just me, or is software buggier across the board?
- Ask HN: My ISP is telling my neighbors their slow internet is because of me
- Ask HN: Please restrict new accounts from posting
- Ask HN: Remember Fidonet?
- Ask HN: Share your productive usage of OpenClaw
- Ask HN: So what happened to Facebook "localhost" tracking?
- Ask HN: What Are You Working On? (July 2026)
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- Ask HN: What are you working on? (May 2026)
- Ask HN: Who is hiring? (June 2026)
- Ask HN: Who is hiring? (March 2026)
- Ask HN: Who wants to be hired? (June 2026)
- Ask HN: Why hasn't there been a real competitor to Ticketmaster yet?
- Ask HN: Why is the HN crowd so anti-AI?
- Ask HN: Will programmers write more efficient code during the memory shortage?
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- Astronomers Find the Edge of the Milky Way
- Astronomers find the edge of the Milky Way
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- Bjarne Stroustrup: How do I deal with memory leaks? (2022)
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- Blaise – A modern self-hosting zero-legacy Object Pascal compiler targeting QBE
- Blatant AI slop just won a 25k USD DeepMind Kaggle Grand Prize
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- Block the "Upgrade to Tahoe" Alerts
- Block the “Upgrade to Tahoe” Alerts
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- CRDTs merge concurrent edits. Why not concurrent creation?
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- Cambodia unveils a statue of famous landmine-sniffing rat Magawa
- Can Claude Fly a Plane?
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- Can the stockmarket swallow Anthropic, SpaceX and OpenAI?
- Can we code our way out of gentrification?
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- Can you instruct a robot to make a PBJ sandwich?
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- Can't Stop the Signal. Poison It
- Canada is looking to build up to 10 new nuclear reactors over the next 15 years
- Canada plans 'nuclear renaissance' with up to 10 reactors built by 2040
- Canada to order military plane fleet from Sweden in shift from US suppliers
- Canada's bill C-22 mandates mass metadata surveillance
- Canada's bill C-22 mandates mass metadata surveillance of Canadians
- Canada’s Bill C-22 Is a Repackaged Version of Last Year’s Surveillance Nightmare
- Cancel ChatGPT AI boycott surges after OpenAI pentagon military deal
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- Codex-maxxing
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