Martin Leitner-Ankerl

@[email protected]
37 Followers
92 Following
125 Posts
Software engineer at @dynatrace. C++ developer, #Bitcoin enthusiast
birdhttps://twitter.com/sunitram
githttps://github.com/martinus
webhttps://martin.ankerl.com
Martin Leitner-AnkerlDec 17, 2023
TIL implementing a fast and high quality hash for std::tuple is not trivial
Martin Leitner-AnkerlAug 14, 2023
500 ⭐ for my #cpp hashmap 🥳
https://github.com/martinus/unordered_dense
GitHub - martinus/unordered_dense: A fast & densely stored hashmap and hashset based on robin-hood backward shift deletion

A fast & densely stored hashmap and hashset based on robin-hood backward shift deletion - martinus/unordered_dense

GitHub
Martin Leitner-AnkerlAug 1, 2023
What a time to be alive
Martin Leitner-AnkerlJul 24, 2023
I'm getting rich, I'm receiving €3.58 a month on GitHub sponsoring, woohoo! https://github.com/sponsors/martinus
Sponsor @martinus on GitHub Sponsors

GitHub is where people build software. More than 100 million people use GitHub to discover, fork, and contribute to over 330 million projects.

GitHub
Martin Leitner-AnkerlJul 1, 2023
I'm now on #nostr: npub1yyz6z2ze997eu5pe94fmy09rfjce0gqk2u62ptq7uudjcfrmdlfs0enkcm
Martin Leitner-AnkerlMay 22, 2023
More than a rehash - by Joaquín M López Muñoz #cplusplus
https://www.youtube.com/watch?v=Rg8MZ5pJIJA
More than a rehash Joaquín M López

YouTube
Martin Leitner-AnkerlApr 21, 2023

After almost 4 years, my #Bitcoin UTXO hashmap improvement finally got merged. 🎉 Sync should be a bit faster with it.

Started August 2019 by tests from @jamesob
in https://github.com/bitcoin/bitcoin/pull/16718#issuecomment-525878177, I first wrote PR 16801, redid it in PR 22702, and redid it again in https://github.com/bitcoin/bitcoin/pull/25325

Improve speed, memory efficiency with alternate hashmap by jamesob · Pull Request #16718 · bitcoin/bitcoin

tl;dr I try swapping out std::unordered_map for a faster third-party implementation where it matters, see something like 15% speedup for initial block download coincident with a 19.3% reduction in ...

GitHub
Martin Leitner-AnkerlMar 21, 2023
So #HelloGames has just forked my #github repository robin-hood-hashing: https://github.com/Hello-Games
Hello-Games

Hello-Games has one repository available. Follow their code on GitHub.

GitHub
Martin Leitner-AnkerlMar 8, 2023

Today's #Bitcoin Core PR Review Club is about my PR "Add pool based memory resource", wohoo!

This PR makes especially reindexing faster.
https://bitcoincore.reviews/25325

Add pool based memory resource

Notes

Bitcoin Core PR Review Club
Martin Leitner-AnkerlMar 1, 2023
I'm wearing a chicken when I'm afraid to merge a pull request