FS2
Gatling
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FS2 | Gatling | |
---|---|---|
17 | 25 | |
2,321 | 6,251 | |
0.9% | 0.8% | |
9.5 | 9.8 | |
7 days ago | 5 days ago | |
Scala | Scala | |
GNU General Public License v3.0 or later | Apache License 2.0 |
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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.
FS2
- Ask HN: What are some of the most elegant codebases in your favorite language?
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The Great Concurrency Smackdown: ZIO versus JDK by John A. De Goes
Recently, CE3 has had similar issues reported across multiple repositories, almost an epidemic of reports!
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Parallel streaming in Haskell: Part 1 – Fast, efficient, and fun
Thanks for the explanation!
So it's pull based and not push based like most other streams lib.
Does maybe someone know how this compares to FS2 or Iteratees than? (Both are also pull based streaming solutions).
https://fs2.io/#/
https://en.wikipedia.org/wiki/Iteratee
Looks quite similar to me. Is the Scala FS2 lib maybe even a clones of the Haskell solution? Or are they different in important aspects?
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Grasping the concepts and getting them down to earth
Most important/known: * https://http4s.org/ - an HTTP client/server * https://github.com/typelevel/fs2 - streaming * https://github.com/tpolecat/doobie - JDBC
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Should I Move From PHP to Node/Express?
On the contrary, switching to the functional mindset, with something like Typelevel Scala3 and respective cats and cats-effect fs2 frameworks, helps to rethink a lot of designs and development approaches.
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Is Scala a good choice for a data intensive web backend?
fs2 for streaming.
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Is “Functional Programming in Scala” 1st edition still relevant?
Finally, the last chapter has been rewritten to be based on some of the main design ideas from FS2 (https://fs2.io), which I hope will be more approachable than the 1st edition.
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FS2 stream doesn't work as I expect it to
Just to clarify, is your doubt about the meaning of the api, or do you think you have found a bug? In either case, you can also open a Github discussion https://github.com/typelevel/fs2/discussions.
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How to update and access state that needs to be shared across multiple API endpoints with FP?
Another more reactive solution would to use signals, as in FPR sinal network. fs2 implements this very nicely here https://github.com/typelevel/fs2/blob/8b285a6b54c63d43ed6aa3bb91365652035c90e5/core/shared/src/main/scala/fs2/concurrent/Signal.scala
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Introducing effects systems S.A. ZIO at work?
Assuming the bug mentioned here is https://github.com/typelevel/fs2/issues/2568, we came up with a partial fix in a day (https://github.com/typelevel/fs2/pull/2569) and a complete fix in 2 days: https://github.com/typelevel/fs2/pull/2572. Note the original bug was opened on a Saturday. :)
Gatling
- JHipster 8 - Criando uma aplicação monolítica
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What is Load Testing? Complete Tutorial With Best Practices
Gatling: An open-source load and performance testing tool primarily designed for web applications, Gatling utilizes a simple domain-specific language (DSL) for creating and maintaining test scripts. It supports HTTP/2 and allows recording and generation of scenarios directly from a browser. The tool also provides detailed performance reports that are easy to analyze.
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Best Practices in Testing GraphQL APIs
Performance and load testing are essential parts of GraphQL API testing. It ensures APIs can handle expected traffic volumes and respond within acceptable timeframes. You can use tools like Apache JMeter or Gatling to generate realistic loads and evaluate the API's performance under different scenarios. Techniques like batched queries and caching can help mitigate this issue.
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Perf/web testing framework similar to locust/gatling for .NET?
New to the .NET community and trying to learn! I have used tools such as Apache JMeter (Java), gatling.io (Java) and Locust (Python) that are decent full featured web perf frameworks. Typically these integrate well with your code, and can be run as part of your unit/integration tests and produce offline reports
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How can I do a simple load test for an API I'm developing?
Gatling , this is what we tested concurrency with. Setting up might take a while depending on your exp. but the tool is solid.
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Optimizing Decision Making with a Trie Tree-Based Rules Engine: An Experience Report
I used SpringBoot 3.0.2, GraalVM 22 (JVM mode), a MacOS 2,6 GHz 6-Core Intel Core i7, running 1000 users for 5 minutes. The idea was to test how memory consumption and CPU usage evolve. Below, I compared the footprint of these three solutions. I collected the total count of requests, throughput, memory consumption, and CPU usage using VisualVM and Gatling.
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A starting point to debug a Java OutOfMemoryError
Load test your code to simulate a production load (you can use tools like k6 or Gatling)
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Are you using any load/stress testing tools?
k6 is our preferred javascript based cloud tester for light webservices. gattling if you have (a monolith with) workflows and need more formalized code to prove/audit your testing.
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Library for easy implementation of instant load testing
It's read as "Ochikisu" and origin is the machine gun manufacturer Hotchkiss because this tool does not have as much firepower as the Gatling.
- Load Testing: An Unorthodox Guide
What are some alternatives?
cats-effect - The pure asynchronous runtime for Scala
Cucumber - Cucumber for the JVM
Diffy
REST Assured - Java DSL for easy testing of REST services
Http4s - A minimal, idiomatic Scala interface for HTTP
k6 - A modern load testing tool, using Go and JavaScript - https://k6.io
ScalaMock - Native Scala mocking framework
locust - Write scalable load tests in plain Python 🚗💨
ScalaTest - A testing tool for Scala and Java developers
Selenium
ScalaMeter - Microbenchmarking and performance regression testing framework for the JVM platform.
WireMock - A tool for mocking HTTP services