performancepaper
A reproducible, open examination of the paper "A performance comparison of Clojure and Java" by Gustav Krantz (by joinr)
clj-fast
Unpredictably faster Clojure (by bsless)
performancepaper | clj-fast | |
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5 | 5 | |
59 | 230 | |
- | - | |
0.0 | 0.0 | |
about 3 years ago | about 2 years ago | |
Clojure | Clojure | |
Eclipse Public License 2.0 | Eclipse Public License 2.0 |
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.
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.
performancepaper
Posts with mentions or reviews of performancepaper.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2022-01-21.
- Notes on Optimizing Clojure Code: Overview
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Why are imperative programs considered faster than their functional counterparts?
There is a review of the study at https://github.com/joinr/performancepaper. Basically by using optimization tricks (recur for recursive function call, unchecked math, using Java types, etc.) Tom meets/beats the performance of Java.
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Making the LinkedIn experimentation engine 20x faster
I did a contrast with someone's graduate thesis that aimed to analyze clojure vs. java performance and made some weak claims. The rep is here, and it's really the org file. Sort of a worked example of optimizing code.
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I rewrote a Clojure tool in Rust
I often see people knocking on Clojure saying its performance is bad when they are still not familiar with all the core library has to offer and what idiomatic performant Clojure can look like. Take a look here for some examples by joinr
clj-fast
Posts with mentions or reviews of clj-fast.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2023-01-12.
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Advent of Clojure - looking for feedback
IIRC clojure.core/merge is another needlessly slow implementation that gets used a lot. If you are leveraging that on hot paths you will probably see some benefit in writing your own variant or copying one (or adding a dep) from a lib that is faster. There are some explorations of these ideas in clj-fast with some early results and trends and plenty of interesting discussions in the issues.
- Notes on Optimizing Clojure Code: Overview
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How (and When) Clojure Compiles Your Code (2016)
Noticed that code compiled in a defn as opposed to raw evaluation of the body at the repl produces different bytecode (and impacts inlining / jit) in some cases https://github.com/bsless/clj-fast/issues/16 . Kind of a cousin to the original issue you raised.
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Making the LinkedIn experimentation engine 20x faster
Some interesting exploration in the clj-fast library and discussions in the issues there.
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Advent of Code 2020 Day 23 Crab Cups in Clojure (optimizing runtime from 10,000 years to 30 minutes)
The only other weird performance regression with array looping code is if you test it at the repl vs inside a defined function that's called. Different bytecode emitted in each case for some reason, with the function wrapper version being substantially faster.
What are some alternatives?
When comparing performancepaper and clj-fast you can also consider the following projects:
ultrarand - a demo of random number generation in java, and clojure via performance optimization
aoc-2021perfcomp - a fork of https://gitlab.com/slotThe/aoc-2021.git for a reddit exploration
criterium - Benchmarking library for clojure
mlton - The MLton repository
slingshot - Enhanced try and throw for Clojure leveraging Clojure's capabilities
ham-fisted - High performance HAMT
clojure - The Clojure programming language
icfpc2019
performancepaper vs ultrarand
clj-fast vs aoc-2021perfcomp
performancepaper vs criterium
clj-fast vs criterium
performancepaper vs mlton
clj-fast vs ultrarand
performancepaper vs slingshot
clj-fast vs ham-fisted
performancepaper vs clojure
clj-fast vs icfpc2019
performancepaper vs aoc-2021perfcomp
clj-fast vs clojure