[image] oscar6echo:
I have added a parallel version of the algo.
Before going into parallelization, I’d suggest improvements to the algorithm. As I called out, essentially all of its time is spent in a highly suboptimal, quadratic-time, duplicates check.
A trivial usage of a HashSet already … Answer from steffahn on users.rust-lang.org
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[image] oscar6echo:
I have added a parallel version of the algo.
Before going into parallelization, I’d suggest improvements to the algorithm. As I called out, essentially all of its time is spent in a highly suboptimal, quadratic-time, duplicates check.
A trivial usage of a HashSet already …
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Have you enabled optimizations? I.e. compiled with cargo build --release or rustc -Copt-level=3?
Rust Programming Language
users.rust-lang.org › code review
Rust vs Go vs C++ - code review - The Rust Programming Language Forum
August 7, 2024 - I was solving a problem on leetcode with c++ and for a very big vector, i get TLE, so the idea come to me to test with go and then i have tested with rust, still TLE. Anyways I thought rust would be faster or rarely same with go but Results C++ 0.56s to compile 14.61s to execute Go 0.23s to ...
Videos
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Quora
quora.com › What-is-the-performance-comparison-between-Golang-Rust-and-C-C
What is the performance comparison between Golang, Rust, and C/C++? - Quora
Answer: Since Golang, Rust and ... there are no intrinsic reasons for any performance differences as long as one compares the same code compiled with the same compiler backend (e.g. LLVM) using the same compiler options...
Reddit
reddit.com › r/rust › i don't understand why people compare rust and go
r/rust on Reddit: I don't understand why people compare Rust and Go
October 3, 2024 -
I think Rust is a different language from its design. I think it should be placed along the lines of C and C++ because there is no garbage collection. Why do people compare to Rust? I think the Go language should be compared to Node or Kotlin.
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You're trying to categorize languages based on aspects of their design. But both are general purpose programming languages, which mean that they can be used to write a wide array of programs. And sometimes, those sorts of programs can overlap. My current work project is an API server, in Rust. Many people would use Go for that as well. But Rust is working well for me. So, in that sense, we can compare them, even if they're very different languages.
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Both languages see themselves as a better C. Rust embraces the C/C++ focus on low-level code / zero-cost abstractions, but improves over it with a safer type system, with some decidedly Haskell influences. Go embraces C's "simplicity", but improves over it with Python-style quality of life features. So the same starting point, but nearly opposite directions. Where C / Go / Rust compete against each other is the space for tools and CLIs. For example, the entire container and Kubernetes space tends to build its tools in Go – and the world is a better place for having avoided C here.
Reddit
reddit.com › r/softwarearchitecture › c++ vs rust vs go
r/softwarearchitecture on Reddit: C++ vs Rust vs GO
September 22, 2021 -
I currently write code in C#, using Console Application, Blazor, or WebForms
Question 1:
I'm looking at going into a low-level language. My interpretation of what a low-level language can actually do (like C++, Rust and GO) is quite limited. What can these kinds of languages offer which C# can't? Although I'm pretty much fluent in coding in C# I still struggle reading about the technical side of languages, so I'd prefer noob-friendly answers like C++ can make an application dedicated to cheese graters, whereas C# would be better creating an application dedicated to cheese.
Question 2:
I'm looking for a language that is still going to be big in 20 years - these three seem to be the biggest, Rust and GO being newer, but C++ still being in applications like Googlebot (backend) despite being ~40 years old. Which would be the better option for a newbie, and why?
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Go isn't really low level. It has a runtime and GC. It's basically a popular alternative to Java and C# for web services. I remember reading that it isn't that fast, as claimed. Rust is much closer to being a low level language. It doesn't have a runtime or GC and that means it's more suitable for lower level programming. I think it's a good stepping stone toward the lowest level which is the C language. My company mainly uses C#. We choose Rust for a couple projects because it can export a C like FFI. This means basically every language can import that library. It's high level and modern with great package management while accomplishing low level FFI without losing memory safety. C++ will never go away, it's too deep in very important projects. It's definitely low level, but not as low level as C.
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What are building ? Who will use it ? Is it for fun ?
Bitfield Consulting
bitfieldconsulting.com › posts › rust-vs-go
Rust vs Go — Bitfield Consulting
February 15, 2026 - Performance. Rust’s clever compiler produces optimised code that runs as fast as the underlying hardware will allow, equalling the performance of C++ or assembly language programs without sacrificing memory safety.
JetBrains
blog.jetbrains.com › rust › 2025 › 06 › 12 › rust-vs-go
Rust vs Go: Which One to Choose in 2025 | The RustRover Blog
February 17, 2026 - Discover the key differences between Rust and Go in 2025. Compare performance, concurrency, ease of use, and more to choose the best programming language for your project.
Medium
medium.com › @marek.michalik › c-vs-rust-vs-go-performance-analysis-945ab749056c
C vs Rust vs Go: performance analysis | by Marek Michalik | Medium
July 18, 2019 - In both C and Rust it was easy to write efficient code without any extra optimizations. On the other hand, both Rust and Go implementation was fast in terms of developer productivity. In terms of implementing efficient algorithms Rust seems ...
Reddit
reddit.com › r/golang › is go easier to learn than c, c++, rust?
r/golang on Reddit: Is Go easier to learn than C, C++, Rust?
January 13, 2024 -
I am not a pro developer, but I code some small tools for myself time to time, in JS. But I hate how much memory and disk space node or even bun take up. So, I was thinking of learning a simple binary compiled language, both to just learn more programming and to use it for my little personal projects. From what I've read so far, everybody seem to say that Go is the easiest to learn between C, C++, Rust, and it's fairly fast and optimized. What would you say? Is that true? What would you recommend me learn?
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It's simpler than Rust / C / C++ and you're likely to get memory savings from making the switch from Node. Just as an example, I rewrote a couple discord bots I had in Node to Go for some POC on savings. Went from 90 - 120MB of RAM in the Node version to about 8 - 12MB of RAM running the Go version, along with lower CPU usage. I find it easy to learn and generally fun to code in. Definitely recommend having it in your programming toolkit.
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Rust is definitely harder to learn, and I don't think it's even close. C++ is a much bigger language. I don't know that it's any harder to learn a subset of C++ like 99% of C++ programmers do. If you wanted encyclopedic knowledge of every corner of the language, it'd be harder to learn. Plus there's a lot of standard library, boost, etc. that's not exactly part of the language but it's definitely part of using the language. C is probably easier to learn, but a much bigger pain to actually use. Like the lack of strings, resizable arrays, hash/dict/map stuff, etc. You can DO all those things in C, but it's very "roll your own". Go is closer to "what if Python was performant?" Except also statically typed and also much less library support. Honestly, probably worth getting your feet wet with all of them. Somewhere past hello world, but not necessarily trying to become proficient in them. At that point, you'll know which you want to dig deeper into.
LinkedIn
linkedin.com › pulse › cc-vs-rust-go-python-can-you-really-compare-them-bhattacharya
C/C++ vs Rust vs Go vs Python: Can you really compare them?
April 20, 2021 - Go is garbage collected – which means that developers don’t need to manually manage memory; furthermore, the garbage collector can be turned off too but again, I don’t have experience with that but even with that, Go has an in-built scheduler and I don’t think one can disable that and write code directly on the system · On the other hand, Go is somewhat restricted – there are many features available in other languages like Rust or C++ that doesn’t exist in Go – for example operator overloading and inheritance.
CodiLime
codilime.com › blog › software development › backend › rust vs. go — what do you need to know about these languages? - codilime
Rust vs. Go — what do you need to know about these languages? - CodiLime
April 1, 2022 - This is the reason why large IT companies use Rust for projects. ... The Go programming language is an open-source solution invented by Google developers Robert Griesemer, Rob Pike, and Ken Thompson. Golang mixes features of statically-typed and dynamically-typed languages.
Clockwise
getclockwise.com › home › blog › go (golang) vs. rust: performance comparison
Go (Golang) vs. Rust: Performance Comparison | Clockwise
March 4, 2021 - In this post, we’ll go a bit deeper to touch on each language’s speed, performance, security, and ease-of-use. We’ll also introduce how both Go and Rust compare to C++. Last, we’ll talk about where and how each is best used.
Medium
medium.com › @shyamsundarb › the-empire-strikes-back-c-enters-the-fray-c-vs-rust-vs-c-vs-go-30165036da81
The empire strikes back — C++ enters the fray. C++ vs Rust vs C# vs Go | by B Shyam Sundar | Medium
September 3, 2023 - In idle state rust’s CPU usage is slightly higher than Go and Go is slightly higher than C# and C++. C#’s memory usage when idle is slightly higher than Go, and Go’s memory usage is slightly higher than C++. Rust’s memory usage is very minimal.
Appinventiv
appinventiv.com › blog › go-vs-rust-choice-for-app-development
Go vs Rust: Which Language Wins in Speed and Safety
September 10, 2025 - When asked how to run rust better or how to get rust to run better, the one factor that weighs up Rust in the Golang vs Rust debate is performance. The programs have been designed to run at similar or near similar speed of C++ and C.
Imaginary Cloud
imaginarycloud.com › blog › rust-vs-go
Rust Vs. Go: Differences and Similarities
This comparison might help decide which language to choose for your next project, and why. What is Go What is Rust Similarities - Why everybody loves Rust and Go Differences When to use them Takeaway · Go - short for Golang - is an open-source programming language developed by Robert Griesemer, ...
Benchmarks Game
benchmarksgame-team.pages.debian.net › benchmarksgame › fastest › rust-go.html
Rust vs Go - Which programs are fastest? (Benchmarks Game)
Rust Go - Which programs have fastest performance?
Hacker News
news.ycombinator.com › item
Rust vs. Go in 2023 | Hacker News
August 16, 2023 - Having used both, Go hides its complexity behind the veneer of simplicity while being more tedious and error prone as the codebase grows while Rust brings the complexity to you upfront while preventing errors later. Personally, even simply due to language features like algebraic data types ...
Bert Hubert
berthub.eu › articles › posts › cpp-rust-go
Should C Programmers learn C++, Go or Rust? - Bert Hubert's writings
July 30, 2018 - With Go, there are strong types, built-in bounds checks, no uninitialized variables, no use-after-free, no stack overflow, and a built-in race detector. (The use of Go has its challenges too, and isn’t free.)” · This seems like a fair summary. Rust also had design goals.
Konstantinfo
konstantinfo.com › blog › rust-vs-go
Which is Better Rust vs Go in 2025? - Konstantinfo
August 21, 2025 - Like C, on which Golang is based, ... of developers. When it comes to comparing the Rust vs Go performance, Rust outperforms the latter one....