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A C++ implementation of a fast hash map and hash set using hopscotch hashing

https://github.com/Tessil/hopscotch-map
38•gjvc•2h ago

Comments

mgaunard•1h ago
How does it compare to boost unordered flat map?

Looks like the benchmarks were last updated in 2019.

compiler-guy•41m ago
https://tessil.github.io/2016/08/29/benchmark-hopscotch-map....

Has some older benchmarks, including those two.

jeffbee•2m ago
A more recent benchmark is https://martin.ankerl.com/2022/08/27/hashmap-bench-01/

However, it lacks the newer Boost stuff which is very fast.

The Hopscotch map was interesting at the time but due to unfortunate timing was immediately outshone by absl::unordered_flat_map A.K.A. "Swiss tables", and there's been even more water under the bridge since then.

Previewing GPT‑5.6 Sol: a next-generation model

https://openai.com/index/previewing-gpt-5-6-sol/
748•minimaxir•6h ago•464 comments

A C++ implementation of a fast hash map and hash set using hopscotch hashing

https://github.com/Tessil/hopscotch-map
38•gjvc•2h ago•3 comments

The gap between open weights LLMs and closed source LLMs

https://blog.doubleword.ai/frontier-os-llm
80•kkm•2h ago•61 comments

U.S. government will decide who gets to use GPT-5.6

https://www.washingtonpost.com/technology/2026/06/26/openai-says-us-government-will-vet-users-its...
710•alain94040•5h ago•836 comments

MicroVMs: Run isolated sandboxes with full lifecycle control

https://aws.amazon.com/blogs/aws/run-isolated-sandboxes-with-full-lifecycle-control-aws-lambda-in...
230•justincormack•3d ago•136 comments

We Can Still Stop California's 3D Printer Surveillance Scheme

https://www.eff.org/deeplinks/2026/06/we-can-still-stop-californias-3d-printer-surveillance-scheme
115•hn_acker•2h ago•13 comments

The US lifts its block on Mythos 5

https://twitter.com/Techmeme/status/2070638481265905837
47•bobrenjc93•39m ago•17 comments

The "Bizarre Headgear" exhibit at the Sam Noble museum

https://svpow.com/2026/05/15/the-bizarre-headgear-exhibit-at-the-sam-noble-museum-is-incredible/
63•surprisetalk•3d ago•6 comments

A Tiny Compiler for Data-Parallel Kernels

https://healeycodes.com/a-tiny-compiler-for-data-parallel-kernels
7•healeycodes•1d ago•0 comments

Show HN: Smart model routing directly in Claude, Codex and Cursor

https://github.com/workweave/router
131•adchurch•6h ago•83 comments

Hightouch (YC S19) Is Hiring

https://hightouch.com/careers#open-positions
1•joshwget•2h ago

Ultrasound imaging of the brain

https://alephneuro.com/blog/ultrasound-brain
221•rossant•11h ago•91 comments

What Is a Nomogram and Why Would It Interest Me?

https://lefakkomies.github.io/pynomo-doc/introduction/introduction.html#what-is-a-nomogram-and-wh...
66•Eridanus2•6h ago•14 comments

PlayStation Is Deleting 551 Movies from Customers' Accounts

https://kotaku.com/playstation-store-movies-digital-studio-canal-terminator-2000711013
108•ortusdux•3h ago•55 comments

The open source DOCX editor submitted to HN a few weeks ago has been deleted

29•gcanyon•1h ago•23 comments

Modern GPU Programming for MLSys

https://mlc.ai/modern-gpu-programming-for-mlsys/
52•crowwork•3d ago•7 comments

Show HN: Autofit2 – End-to-end pipeline for multilingual text classification

https://github.com/neospe/autofit2
11•leschak•1d ago•0 comments

A human postmortem of the 1996 AOL outage

https://ngrok.com/blog/aol-was-down-1996
23•EndEntire•2d ago•4 comments

Long Wave radio era set to end with Droitwich switch-off

https://www.bbc.com/news/articles/c74yn7v7k4qo
35•speckx•4h ago•16 comments

Pre-Modern Armies for Worldbuilders, Part III: Paying for It

https://acoup.blog/2026/06/26/collections-pre-modern-armies-for-worldbuilders-part-iii-paying-for...
32•jfoucher•5h ago•2 comments

The Art of Kite Flying (1430–1929)

https://publicdomainreview.org/collection/art-of-kite-flying/
19•benbreen•4d ago•9 comments

The National Parks Were Reportedly Told to Stay Silent on Deaths

https://www.outsideonline.com/outdoor-adventure/environment/nps-internal-memo-deaths/?link_source...
57•LostMyLogin•2h ago•12 comments

Lippmann Photography

https://www.jonhilty.com/lippmann
7•andsoitis•2d ago•0 comments

Gossamer: a Rust-flavoured language with real goroutines and pause-free memory

https://gossamer-lang.org/
60•mwheeler•4h ago•48 comments

Data centers trigger voter backlash

https://www.newsweek.com/cost-me-the-election-data-centers-trigger-voter-backlash-12118327
145•randycupertino•6h ago•256 comments

LaTeX.wasm: LaTeX Engines in Browsers

https://www.swiftlatex.com/
76•theanonymousone•3d ago•28 comments

My Steam Machine is a 50ft HDMI cable

https://blog.matthewbrunelle.com/my-steam-machine-is-a-50ft-hdmi-cable/
143•speckx•3d ago•147 comments

Slisp: Simple Lisp compiler (Linux/amd64)

https://github.com/skx/slisp
49•stevekemp•4h ago•2 comments

Bipartite Matching Is in NC

https://scottaaronson.blog/?p=9851
105•amichail•4d ago•16 comments

Show HN: WebBase-III – dBASE III rebuilt in the browser with its own interpreter

https://github.com/DDecoene/WebBaseIII
76•ddecoene•2d ago•25 comments