hashbrown
transit-lang-cmp
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hashbrown | transit-lang-cmp | |
---|---|---|
22 | 15 | |
2,261 | 421 | |
2.2% | - | |
8.2 | 0.0 | |
17 days ago | 5 months ago | |
Rust | Elixir | |
Apache License 2.0 | MIT License |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
hashbrown
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OpenD, a D language fork that is open to your contributions
That's because you're looking at a wrapper around the actual implementation (which lives in an external package). Notice "use hashbrown::hash_map as base;" at the top.
There's far more unsafe there: https://github.com/rust-lang/hashbrown/blob/f2e62124cd947b5e...
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I just published my first crate: `identified_vec` - I would love some input! PR's are most welcome.
You might want to check out how popular ecosystem crates do some of these things. Particularly relevant to you are probably crates providing collections, such as smallvec, hashbrown, or indexmap.
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GDlog: A GPU-Accelerated Deductive Engine
https://github.com/topics/swisstable
rust-lang/hashbrown: https://github.com/rust-lang/hashbrown
CuPy has array but not yet hashmaps, or (GPU) SIMD FWICS?
NumPy does SIMD:
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When Zig Outshines Rust – Memory Efficient Enum Arrays
Thanks, great point indeed. I am looking into this https://github.com/rust-lang/hashbrown
The way I think about it -- rather naively, I suppose -- is that I care more about the references cells make to each other than the actual grid of cells displayed on a table. The latter feels more like a "view" of the data than an actual data structure?
This also seems to align with the relative priority of (sorted from highest to lowest): figuring out the order of evaluation, calculating those evaluations, and finally displaying the results of the evaluation
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This Week in Rust # 500!!
updated std's hashbrown dependency to 0.14 which contains some optimizations
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Crust of Rust: std::collections [video]
The std hashmap is actually very fast and uses state of the art hashmap design, namely because it's implemented by hashbrown
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Deduplicating a Slice in Go
I believe Rust uses hashbrown as the underlying implementation now. This just calculates the number of buckets based on the number of items requested:
https://github.com/rust-lang/hashbrown/blob/009969a860290849...
Is it really the case that rehashing can guarantee that the number of buckets allocated will be sufficient for any given set of keys? In principle you could fail to rehash in a way that reduces collisions after k attempted rehashings.
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Blog Post: Rust Is a Scalable Language
For example, since the hashbrown crate is marked with #![no_std], it can be used as a dependency for the standard library.
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Hey Rustaceans! Got a question? Ask here (6/2023)!
To implement something that cannot be expressed in safe Rust, or at least cannot be expressed succinctly in safe Rust, like fundamental datastructures. The hashbrown crate contains a lot of unsafe code, but it's such high quality that it's now the backing implementation for std::collections::HashMap.
- Data-driven performance optimization with Rust and Miri
transit-lang-cmp
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Migrating from Warp to Axum
> The axum::debug_handler macro is invaluable to debug type errors (there's some with axum too), like for example, accidentally having a non-Send type slip in.
Heh, yeah. For my recent project where I explored implementing the same little app in a few different languages[0], I chose Axum for the rust version.
The whole "extractor" system was pretty magical, and when I had this exact issue (non-Send argument), the compiler error was totally useless. I did see the docs about adding this extra macro crate for error messages but it seemed like a bit of a red flag that the framework was going against the grain of the language. Still, on the whole, I did enjoy working with Axum.
[0] https://github.com/losvedir/transit-lang-cmp
- Transit: A Code Comparison
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Programming language comparison by reimplementing the same transit data app
This is great! Just pushed up a commit that uses it and updated the benchmarks[0]. I'm seeing a 1.6X - 2X improvement in overall performance. Not bad for a drop-in replacement. And since it's based on serde, I trust it, and I feel like trying out a different JSON library is within scope for me of not just "gaming the benchmarks", as this is actually something I'd now consider using at work.
It's not quite as high as I was seeing with `jiffy` (3,800 req/sec here vs 4,000+ with jiffy), but I'm not confident that was a totally fair comparison. `jiffy` doesn't integrate as nicely with Phoenix, so I was just calling `:jiffy.encode(...)` in the controller and then doing a `text(...)` response. I need to double-check if `json(...)` is doing more work here.
[0] https://github.com/losvedir/transit-lang-cmp/commit/140d693b...
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Why does Scala seem to be slow at benchmark results?
Nowadays, I reached out for some benchmark results. Scala is slower than Java and Kotlin. Can you explain it? https://github.com/losvedir/transit-lang-cmp https://github.com/kostya/benchmarks
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Why is C#/dotnet outperforming rust in my simple benchmarks?
I had a chance to update the Go code (commit) to pre-allocate the arrays based on the known length before all the appends, and saw ~30% increase in performance, with top requests per second going from about 8,600 to 11,000.
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The RedMonk Programming Language Rankings: June 2022
I recently did a little project to compare several languages (https://github.com/losvedir/transit-lang-cmp) so I contributed to a bunch of those points!
- Show HN: An informal comparison of several programming languages
What are some alternatives?
dashmap - Blazing fast concurrent HashMap for Rust.
scotty - Haskell web framework inspired by Ruby's Sinatra, using WAI and Warp (Official Repository)
meow_hash - Official version of the Meow hash, an extremely fast level 1 hash
tapir - Declarative, type-safe web endpoints library
flamegraph - Easy flamegraphs for Rust projects and everything else, without Perl or pipes <3
plainchant - plainchant - a lightweight and libre imageboard
bumpalo - A fast bump allocation arena for Rust
template_rust_web_api
moonfire-nvr - Moonfire NVR, a security camera network video recorder
deno_std - deno standard modules
aoc - 🎄 My solutions and walkthroughs for Advent of Code and more related stuff.
grpc_bench - Various gRPC benchmarks