pest VS moodycamel

Compare pest vs moodycamel and see what are their differences.

pest

The Elegant Parser (by pest-parser)

moodycamel

A fast multi-producer, multi-consumer lock-free concurrent queue for C++11 (by cameron314)
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pest moodycamel
42 11
4,298 8,729
1.7% -
7.6 3.9
7 days ago 9 months ago
Rust C++
Apache License 2.0 GNU General Public License v3.0 or later
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
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.

pest

Posts with mentions or reviews of pest. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2023-12-06.

moodycamel

Posts with mentions or reviews of moodycamel. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2022-04-21.
  • moodycamel VS lockfree_mpmc_queue - a user suggested alternative
    2 projects | 21 Apr 2022
  • Matthias Killat - Lock-free programming for real-time systems - Meeting C++ 2021
    2 projects | /r/cpp | 22 Jan 2022
    Not literatue but an example. This is a lock-free (not wait-free!) multi-producer multi-consumer queue, not a FIFO, but access patterns should be similar - if not the same: https://github.com/cameron314/concurrentqueue
  • Learning Clojure made me return back to C/C++
    8 projects | /r/Clojure | 23 Jul 2021
    If I do implement it, the most likely route I'd take is make a compiler in Clojure/clojurescript that uses Instaparse (I have a more-or-less-clojure grammar written that I was tinkering with) and generate C++ code that uses Immer for its data structures and Zug for transducers and what my not-quite-clojure would support would be heavily dependent on what the C++ code and libraries I use can do. I'd use Taskflow to implement a core.async style system (not sure how to implement channels, maybe this but I'm unsure if its a good fit, but I also haven't looked). I would ultimately want to be able to interact with C++ code, so having some way to call C++ classes (even templated ones) would be a must. I'm unsure if I would just copy (and extend as needed) Clojure's host interop functionality or not. I had toyed with the idea that you can define the native types (including templates) as part of the type annotations and then the user-level code basically just looks like a normal function. But I didn't take it very far yet, haven't had the time. The reason I'd take this approach is that I'm writing a good bit of C++ again and I'd love to do that in this not-quite-clojure language, if I did make it. A bunch of languages, like Haxe and Nim compile to C or C++, so I think its a perfectly reasonable approach, and if interop works well enough, then just like Clojure was able to leverage the Java ecosystem, not-quite-clojure could be bootstrapped by leveraging the C++ ecosystem. But its mostly just a vague dream right now.
  • Recommendations for C++ library for shared memory (multiple producers/single consumer)
    3 projects | /r/cpp | 28 May 2021
    I would recommend https://github.com/cameron314/concurrentqueue as it's very battle tested and fast.
  • fmtlog: fastest C++ logging library using fmtlib syntax
    2 projects | /r/cpp | 6 May 2021
    This was explicitly considered for spdlog (using the moodycamel::ConcurrentQueue) but rejected for the above reason. I'm not involved in the development of spdlog but personally I agree, for me it's important that log output is not all mixed up.
  • Functional programming in C++ (2012)
    2 projects | news.ycombinator.com | 28 Dec 2020
    > So the big win with functional programming is easier testibility and fewer hazards when trying to multi-thread your code.

    To give you my experience: during my phd, I developed https://ossia.io in C++. For the manuscript redaction, I rewrote all the core algorithms in pure functional OCaml. When I did some tests, performance was slower than -O0 C++ (so it's not even a given that multithreaded OCaml would outperform single-thread C++), the tests weren't meaningfully simpler to write, and it would be pretty much impossible to have an average comp. sci. student contribute to the code.

    My experience multi-threading C++ code is, "slap cpp-taskflow, TBB, RaftLib" or any kind of threaded task system and enjoy arbitrary scaling. Hardly the pain it is made to be unless you have a need to go down to std::thread level, but even then using something like https://github.com/cameron314/concurrentqueue to communicate between threads makes things extremely painless.

What are some alternatives?

When comparing pest and moodycamel you can also consider the following projects:

nom - Rust parser combinator framework

lalrpop - LR(1) parser generator for Rust

rust-peg - Parsing Expression Grammar (PEG) parser generator for Rust

Boost.Compute - A C++ GPU Computing Library for OpenCL

MPMCQueue.h - A bounded multi-producer multi-consumer concurrent queue written in C++11

pom - PEG parser combinators using operator overloading without macros.

Taskflow - A General-purpose Parallel and Heterogeneous Task Programming System

chumsky - Write expressive, high-performance parsers with ease.

readerwriterqueue - A fast single-producer, single-consumer lock-free queue for C++

RaftLib - The RaftLib C++ library, streaming/dataflow concurrency via C++ iostream-like operators

combine - A parser combinator library for Rust

libcds - A C++ library of Concurrent Data Structures