Netty
Vegeta
Netty | Vegeta | |
---|---|---|
53 | 41 | |
32,811 | 22,745 | |
0.4% | - | |
9.6 | 6.6 | |
1 day ago | 7 days ago | |
Java | Go | |
Apache License 2.0 | MIT License |
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.
Netty
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Reactor Netty: UDP DNS client example
Code of netty is here and using following library
- Netty: Asynchronous event-driven network application framework
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New scalable, fault-tolerant, and efficient open-source MQTT broker
We use Netty (https://netty.io/) as the source of the MQTT communication, and we build the MQTT features the MQTT broker should support ourselves on top of that.
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Modern Async Primitives on iOS, Android, and the Web
In this space, we also have the somewhat related term blocking. Java's NIO library is one well-known non-blocking tool used for managing multiple tasks on a single Java thread. When listening to sockets, most of the time a thread is just blocked, doing nothing until it receives some data. So, it's efficient to use a single thread for monitoring many sockets, to increase the likelihood of the thread having some actual work to do. The Selector API does this but is notoriously challenging to program well. Instead, developers use frameworks like Netty which abstract some of NIO's complexity and layer on some best practices.
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An investigative journey through concurrent data structures
DirectByteBuffer exhibits an intriguing behavior: it deallocates its backing memory during the finalization process, which occurs after garbage collection (GC) cycles. This poses an issue if your system is conservative with on-heap allocations, leading to infrequent GC cycles. In such cases, there could be a significant delay between the time the memory becomes unreferenced and when it is actually deallocated. This behavior could, in some respects, mimic a memory leak.
This is why some libraries hacks into DirectByteBuffer to deallocate memory explicitly, bypassing the finalizer altogether. For instance, the Netty library has implemented such a workaround, see Netty as an [example](https://github.com/netty/netty/blob/795db4a866401aa172757b95...).
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Scaling to ~15K requests per second with Java – Part 1
Apologies replying to myself, but Netty, which underpins many of the popular Java backend frameworks, see backward compatibility as more important than supporting green threads.
https://github.com/netty/netty/issues/12816
It'll be interesting to see who (if anyone) picks up Netty's mantle in the Project Loom world.
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Netty VS java-http - a user suggested alternative
2 projects | 25 May 2023
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Is jre17 the problem? How do I get an old eclipse? Error: Could not find or load main class netty.DiscardServer Caused by: java.lang.ClassNotFoundException: netty.DiscardServer
Looks fairly recent so I'm glad I had a pre oct22 build https://github.com/netty/netty/issues/12737
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What are your (favourite) Java best practices, personal tips, hints or just underrated stuff in general?
This is better? https://github.com/netty/netty/blob/4.1/pom.xml
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Lessons learned from picking a Java driver for Amazon ElastiCache for Redis - Part 2
Given the fact that Lettuce is built with Netty, we also immediately noticed quite an impact on the initialization time (cold start) of our lambda function. Netty is really fast while executing, but takes a bit of time to initialize. The new Lambda Snapstart functionality might help with that.
Vegeta
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Netlify just sent me a $104K bill for a simple static site
Vegeta worth a look if you want something a bit more sophisticated: https://github.com/tsenart/vegeta
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Under Pressure: Benchmarking Node.js on a Single-Core EC2
There are tons of tools to do this, I'll use Vegeta
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Deep-dive into Vegeta - HTTP load testing tool and library
To install vegeta, grab the right download url from https://github.com/tsenart/vegeta/releases/tag/v12.11.1 and download using the below command.
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Set Up Tracing for a Node.js Application on AppSignal
One of the easiest ways to send lots of fabricated requests at the same time is to use the Vegeta load testing tool. Being a load testing tool, it can send lots of requests consistently, every second, to the given target URL. You can read more about Vegeta on GitHub. The binary can be downloaded and used without installation.
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What tools you use for http load testing?
Good morning what tool do you use to test your infra in terms of http load ? A tool that works, I tested : - https://github.com/tsenart/vegeta but it returns 0 errors or a http_net error from Golang - LOIC (Low Orbit Ion Canon) https://github.com/NewEraCracker/LOIC but the requests do not appear in my nginx logs and I feel no slowdown - Apache Jmeter https://jmeter.apache.org/ but I can't drop my infra and I have Java socket closed errors - K6 https://k6.io/ but I can't bring down my infra with - wrk https://github.com/wg/wrk no matter what parameter I put it doesn't make enough requests per second, I put the same parameters as on a tutorial and I don't get the same result...
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How does one answer performance related questions such as these for a web API?
I use tools like vegeta and wrk2 to answer those questions.
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Why use internal package and main package in the same module?
A module can be an executable and a library at the same time. For example, https://github.com/tsenart/vegeta
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Where to learn more as I scale up?
Some tools to investigate: * https://prometheus.io/ * https://github.com/tsenart/vegeta
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How to learn system performance as a beginner?
No, not at all. You just need a tool like Vegeta.
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How to Deploy and Scale Strapi on a Kubernetes Cluster 1/2
vegeta v12.8.4
What are some alternatives?
Undertow - High performance non-blocking webserver
k6 - A modern load testing tool, using Go and JavaScript - https://k6.io
OkHttp - Square’s meticulous HTTP client for the JVM, Android, and GraalVM.
Hey - HTTP load generator, ApacheBench (ab) replacement
gRPC - The Java gRPC implementation. HTTP/2 based RPC
Gatling - Modern Load Testing as Code
Grizzly
kubernetes - Production-Grade Container Scheduling and Management
KryoNet - TCP/UDP client/server library for Java, based on Kryo
bombardier - Fast cross-platform HTTP benchmarking tool written in Go
MINA - Mirror of Apache MINA
Apache JMeter - Apache JMeter open-source load testing tool for analyzing and measuring the performance of a variety of services