As noted elsewhere (e.g., Why is my Rust program slower than the equivalent Java program?), if you compile Rust code in debug mode, it tends to be slow. If you turn on optimization, it tends to be much faster.

It's worth mentioning here that Rust compilers will do a great deal of optimization if you let them (or tell them). The cargo build system will do this when run in release mode. This optimization can make debugging very hard! So if you're trying to get code working, you probably don't want to do this yet.

Go compilers traditionally just do relatively simple optimization.1 So go build currently doesn't have an optimization level or flag, except for -N to disable optimization and -l to disable inlining.


1This optimization is not useless, but it's not the kind of super-fancy makes-following-your-code-in-the-debugger-impossible optimization that rustc does at high optimization levels.

Answer from torek on Stack Overflow
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Stack Overflow
stackoverflow.com › questions › 77669377 › issue-with-performance-of-rust-code-vs-go
Issue with Performance of Rust Code vs Go - Stack Overflow
This really belongs on codereview.stackexchange.com. ... Vec<u8> => String requires scanning the entire array to check that it's valid UTF-8, so it's always slow; I suggest keeping a single representation through the algorithm; I see you allocating a String for every char, you don't need it and it's going to be fairly slow;
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Reddit
reddit.com › r/golang › what are your thoughts on the recent stackoverflow dev survey in comparison with rust
r/golang on Reddit: What are your thoughts on the recent StackOverflow Dev survey in comparison with Rust
July 8, 2023 -

This isn't meant to be a "Go vs Rust!!" post, just looking to get some opinions on the market share based on the recent survey.

In the 2023 StackOverflow Dev survey it showed that even though Go jumped up a couple of points, Rust had a bigger jump in comparison with last year and some people are speculating that Rust might overtake Go by next year.

This doesn't match my experience however, I see a lot of postings for Go jobs but barely any for Rust. This is of course, anecdotal but wanted to hear your folks' thoughts on this.

I do feel Rust is way more niche whereas Go already has robust tooling in a lot of the areas where more popular tech (like Node.js) is used so I expected a significant gap between Go and Rust on the "leaderboard".

Edit: I am specifically talking about the most popular technologies question

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Reddit
reddit.com › r/golang › rust or go?
r/golang on Reddit: Rust or Go?
May 9, 2015 -

I've been trying to decide whether I should go with Rust from Mozilla Research or Go from Google. I've done both the tutorials and think both languages are fantastic. I just can't decide which one I want to stick with. At least for a little while anyway. Is there anything one language does better than the other? I'm tempted to stick with Go until Rust hits 1.0, but what do you guys think?

// EDIT //

I guess I should have elaborated a bit further without making it seem like a "this vs this" post. I do agree with the general consensus. Use what's best for what you're trying to do. What I was after was what each language is REALLY good at. From what everyone was saying is that Rust is good at the low-level stuff and Go is good for the higher-level stuff. Oh, and the decision to go with Go BEFORE Rust was due to the fact that Rust hasn't reached a "1.0". Every release had broken all kinds of stuff so I really don't want to learn a language until at least the syntax solidifies. For my goals however, it looks like I'll be learning both. :P I have a few Web Application ideas that I'll do in Go, and I want to experiment with making a Wayland Compositor in Rust.

Top answer
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They are not meant to be competing languages. They fill different needs, designed with different approaches and excels at different things. If you want to write low-level stuff, something that needs every tiny bit of performance, working directly with the hardware or graphics, and you want to handle the memory. Basically something that you'd use C/C++ to write, something like kernel, driver, graphics library, a big library that exposes a C interface for other languages to call, a game that couldn't work well if there are GC pauses, or something like what Mozilla is building: Servo, a new browser engine. Then go with Rust, just choose Rust, or plain C/C++ for that. I've made the mistake of "fanboyingly" choosing Go for this kind of task and it hurts, it's really stupid and inappropriate, even though Go can definitely do some, it's awkward. On the other hand, if you want to do something like writing a tool, a server, a web application, a network application or an application to process, send/receive something or whatever that is called high-level. Things that previously people have to use such slow and unsafe scripting languages like Python, Ruby or PHP to write. You don't care about GC, you don't care about memory management, lifetimes and all that stuff, and you shouldn't care because Go is a compiled language which is more than fast enough to do ten times the work. You just want something simple, fast, compiles instantly and makes your code the easiest to read, to understand, to cooperate and to maintain. Choose Go, for the love of god choose Go because it's awesome for the job. One more thing I want to say: I've made of mistake of being such a fanboy, choosing that language I love for unsuitable tasks. And that's the worst thing. There's no perfect language, there is no best language. The best language is "choosing the right tool for the job".
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If you were planning on writing it in python use go. If you were planning on using C++ use rust.
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Better Stack
betterstack.com › community › comparisons › rust-vs-go
Rust vs Go: A Comprehensive Language Comparison | Better Stack Community
Rust focuses on safety and performance. It prevents bugs that crash programs and creates security vulnerabilities. The language forces you to think about memory management, but it rewards you with fast, reliable code.
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DEV Community
dev.to › thatcoolguy › rust-vs-go-which-should-you-choose-in-2024-50k5
Rust vs Go? Which Should You Learn in 2025 - DEV Community
December 30, 2024 - Both Rust and Go have active and vibrant communities. Although Go stands out with more GitHub stars and active users compared to Rust. Below is the GitHub Page and the number of Stack Overflow questions asked for both languages.
Find elsewhere
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KodeKloud
kodekloud.com › blog › golang-vs-rust
Golang vs. Rust
April 29, 2024 - In the · Stack Overflow Developer Survey 2023, developers voted Rust as the most admired language. An impressive 84.66% of developers surveyed expressed their intention to use Rust ...
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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 - Blog>>Software development>>Backend>>Rust vs Go — what do you need to know about these programming languages? ... According to the Stack Overflow Development Survey 2021 , both Rust and Go (known also as Golang) have a special place in developers' hearts. According to the survey, these ...
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The New Stack
thenewstack.io › home › rust vs. go: why they’re better together
Rust vs. Go: Why They’re Better Together - The New Stack
March 6, 2023 - The security concerns of today’s applications are well-addressed by both Go and Rust, which ensure that code built in the languages run without exposing the user to a variety of classic security vulnerabilities like buffer overflows, use-after-free, etc.
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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 - This strict enforcement of memory safety rules ensures that Rust programs are free of null pointer dereferences, dangling pointers, and buffer overflows, which are common vulnerabilities in system-level programming languages like C and C++. Additionally, Rust emphasizes zero-cost abstractions, iterator chains, and type inference, which allows high-level programming without sacrificing performance.
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Tech Insider
tech-insider.org › home › software › rust vs go 2026: the definitive programming language comparison
Rust vs Go [2026]: 1 Clear Winner After 7 Tests - Tech Insider
1 week ago - The JetBrains 2025 developer ecosystem survey found that Go developers rate their language satisfaction at 78%, while Rust developers rate theirs at 72% admiration rate (Stack Overflow 2025 survey), making it the most-admired language for the ...
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DEV Community
dev.to › mukeshkuiry › go-vs-rust-speed-test-which-one-to-choose-in-2024-1ck
GO vs RUST speed test | Which one to choose in 2024 - DEV Community
January 2, 2024 - In performance, Go is efficient; Rust balances memory safety and performance. According to Stack Overflow, 13.24% use Go, while 84.66% admire Rust.
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Rust Programming Language
users.rust-lang.org › community
Comparison of programming languages in Stackoverflow Survey - community - The Rust Programming Language Forum
December 19, 2022 - In several speeches at conferences, I saw Rust presented as the most loved language and the most wanted in '22. I got curious, what about Go, the main competitor. (And yes, I think it is a competitor, because at every company when you say "hey, let's rewrite this in Rust", you hear "why not ...
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Trio
trio.dev › home › software development › golang vs. rust in 2026
Golang vs. Rust: Which Language To Choose in 2024?
February 22, 2026 - Go is easier to learn and use, making it ideal for fast development and maintainability. Rust is more complex but offers greater control and long-term stability. Go has gained traction in web development, databases, and network programming, ...
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Systango
systango.com › blog › rust-vs-go
Rust vs Go in 2026: Performance, Security, Scalability & ...
1 month ago - Executive insight: Rust prevents bugs. Go handles them gracefully. According to the Stack Overflow Developer Survey, Rust has ranked among the most loved languages for multiple consecutive years.
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Reddit
reddit.com › r/golang › rust vs. go no, it's rust and go.
r/golang on Reddit: Rust vs. Go NO, it's Rust and Go.
March 31, 2024 -

Learning about Go can feel like Formula 1 racing, while Rust resembles a marathon. So, what's the catch? I believe anyone eager to learn should not limit themselves to one language, but rather explore both. Here’s why.

Let's assume you are learning Rust. In the initial days, you might feel that the learning curve is very steep, which can be daunting. The Rust compiler acts like a strict father who wants to make you responsible for every step you take, while still providing a layer of safety. This rigorous approach means that for building fast backends, microservices, or any networking application, Rust might seem like overkill due to the verbosity of the code. Meanwhile, Go offers the ability to achieve these tasks with sheer speed, thanks to a robust ecosystem designed for rapid development.

When examining the job market, you'll find that the overall demand for Rust, even in freelancing, is less compared to Go. What's more, there are scarcely any positions for junior or entry-level Rust developers; you're expected to have substantial experience and several Rust projects under your belt before you can secure a job.

On the other hand, let's consider learning Go. What’s the problem with focusing solely on Go? It's straightforward – "easy peasy lemon squeezy." The Go compiler acts as a loving and humble mother, encouraging you to focus solely on your goals while it handles the rest. Go boasts a higher demand than Rust, and you can become proficient and delve deep into it within a few days. However, by not learning Rust, you’re missing out on its burgeoning ecosystem, which is predicted to flourish in the future. Knowing Rust is always a plus point, as it deepens your understanding of how modern software works.

Each language caters to different preferences. If you love building products quickly, choose Go. It's ideal for those who want to develop swiftly and see immediate results. If, on the other hand, you're passionate about constructing products you can swear by, can afford to invest more time, or simply want to appear cool, choose Rust. It offers a sense of mastery and depth, appealing to those who value robustness and detail in their work.

Both technologies have their pros and cons. If you want to move fast, choose Go. If you prefer to prioritize safety, depth, and responsibility, opt for Rust.

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Reddit
reddit.com › r/golang › should i invest in go or rust as a full-stack dev?
r/golang on Reddit: Should I invest in Go or Rust as a full-stack dev?
November 14, 2025 -

I'm a full-stack web developer, mainly working with TypeScript. I'm also familiar with Python and Dart, and I’ve worked a bit with Go and Rust.

Recently I decided to invest serious time into a high-performance language — but I’m stuck between Go and Rust.

On one hand, I already know some Go and really like its simplicity. I enjoy how I can just focus on implementing features without constantly thinking about the language itself.

On the other hand, I’m also familiar with Rust’s borrowing/ownership concepts, but Rust still feels a bit too low-level for me. I don’t always enjoy thinking about lifetimes, borrowing rules, variable scopes, etc., instead of building stuff.

But everywhere I look, people are talking about Rust — its safety, performance, lack of GC overhead, how many governments and organizations are recommending it, and how tons of tooling (especially in the TypeScript ecosystem) is being rewritten in Rust.

So I’m torn:

Go feels more productive and comfortable

Rust feels safer, more performant, and more future-proof

For someone with my background, which language would be a better long-term investment?

Would love to hear your thoughts.

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AIS Technolabs
aistechnolabs.com › home › blogs › go vs rust: a comprehensive guide to choosing the perfect fit
Rust vs Go: Which One Is Best For Web Development?
December 21, 2024 - Which language will you choose? Where Rust game development services and performance-critical apps shine. Go’s built-in HTTP stack is for web services and APIs.