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Hey Load Generator VS VisualVM

Compare Hey Load Generator VS VisualVM and see what are their differences

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Hey Load Generator logo Hey Load Generator

HTTP load generator, ApacheBench (ab) replacement, formerly known as rakyll/boom

VisualVM logo VisualVM

VisualVM is a visual tool integrating several commandline JDK tools and lightweight profiling...
  • Hey Load Generator Landing page
    Landing page //
    2023-10-14
  • VisualVM Landing page
    Landing page //
    2021-10-18

Hey Load Generator features and specs

  • Ease of Use
    Hey is a simple, CLI-based load generator, making it easy to install and use without the need for complex setup or configuration. It's straightforward for developers to run basic load tests with minimal effort.
  • Lightweight
    Hey is a lightweight offering compared to more comprehensive tools, focusing on simplicity and performance with low overhead, which makes it suitable for quick tests.
  • Suitable for Small Tests
    For small to medium-scale load tests, Hey can perform efficiently, helping teams test scenarios without needing advanced capabilities.
  • Written in Go
    Being written in Go, Hey benefits from the language's concurrency support and performance efficiency, leading to fast and reliable test execution.

Possible disadvantages of Hey Load Generator

  • Limited Features
    Hey offers basic load testing capabilities, lacking the advanced features and functionalities of other tools, making it less suitable for comprehensive testing scenarios.
  • Single Endpoint Focus
    Hey is typically used for testing single HTTP endpoints, which limits its ability to simulate complex user interactions across multiple endpoints.
  • Scalability Constraints
    While effective for smaller tests, Hey may struggle with scaling to handle large or complex loads compared to more robust load testing tools.
  • Lack of GUI
    Hey operates solely as a command-line tool, offering no graphical user interface, which may be challenging for users who are not comfortable with a CLI.

VisualVM features and specs

  • Comprehensive Monitoring
    VisualVM allows developers to monitor and troubleshoot Java applications through various data points like JVM-level statistics, thread monitoring, and memory inspection.
  • Integration with JDK
    As a part of the JDK, VisualVM is easy to access and use without the need for additional installations or configurations.
  • Lightweight
    Being lightweight, VisualVM does not add significant overhead to the system and can be used effectively in development without impacting performance.
  • User-friendly Interface
    VisualVM provides an intuitive and graphical interface that makes it easier for users to analyze the performance metrics and diagnose issues.
  • Plugin Support
    VisualVM supports plugins, allowing users to extend its functionalities according to specific requirements and use cases.
  • Cross-platform
    As a Java-based tool, VisualVM can be run on any platform that supports Java, making it highly versatile.

Possible disadvantages of VisualVM

  • Limited to Java Applications
    VisualVM can only be used with Java applications, which can be a limitation for mixed-environment monitoring needs.
  • Limited Features for Enterprise
    While excellent for basic monitoring, VisualVM might lack some features and scalability needed for large enterprise-grade monitoring and performance analysis.
  • Steep Learning Curve for Advanced Features
    Despite its user-friendly interface, some advanced features and customizations can be complex and may require a steep learning curve.
  • Infrequent Updates
    The update cycle for VisualVM can be slower compared to commercial alternatives, leading to potential lag in addressing bugs or adding new features.
  • Resource Usage
    Running VisualVM for in-depth analysis on the same machine as the application it monitors could potentially affect the applicationโ€™s performance due to resource consumption.

Hey Load Generator videos

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VisualVM videos

Java Heap Dump Analysis - VisualVM Tutorial

More videos:

  • Tutorial - OutOfMemoryError Java Heap Space Fix - Heap Dump Analysis VisualVM Tutorial

Category Popularity

0-100% (relative to Hey Load Generator and VisualVM)
Load Generator
100 100%
0% 0
Software Development
0 0%
100% 100
Developer Tools
100 100%
0% 0
Resource Profiling And Monitoring

User comments

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Social recommendations and mentions

Hey Load Generator might be a bit more popular than VisualVM. We know about 32 links to it since March 2021 and only 24 links to VisualVM. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

Hey Load Generator mentions (32)

  • The Ultimate API Design Checklist for Production Apps
    # Using hey (https://github.com/rakyll/hey) for quick load testing # 200 requests, 20 concurrent, targeting the list endpoint Hey -n 200 -c 20 \ -H "Authorization: Bearer $TOKEN" \ https://api.example.com/api/v1/products # Check: p99 latency should be under 500ms # Check: Zero 5xx errors # Check: Rate limiting kicks in appropriately. - Source: dev.to / 4 months ago
  • Node.js vs Go in Practice: Performance Comparison of chaos-proxy and chaos-proxy-go
    In this article, I benchmark the original Node.js/Express-based chaos-proxy against a new Go implementation, chaos-proxy-go. While the Go version can't run custom JS/TS middleware, it aims to deliver the same core chaos features with much higher throughput and lower latency. Using a Caddy server as the backend and the hey tool for load testing, I'll compare both proxies (and direct Caddy) in a controlled... - Source: dev.to / 9 months ago
  • Micronaut 4 application on AWS Lambda- Part 1 Introduction to the sample application and first Lambda performance measurements
    The results of the experiment are based on reproducing more than 100 cold starts and about 100,000 warm starts with the Lambda function GetProductByIdFunction (we ask for the already existing product with ID=1 ) for the duration of about 1 hour. We give Lambda function 1024 MB memory, which is a good trade-off between performance and cost. We also use (default) x86 Lambda architecture. For the load tests I used... - Source: dev.to / about 1 year ago
  • AWS Fault Injection Service for AWS Lambda - Part 3 FIS Lambda Action invocation-http-integration-response
    Let's invoke the PutProductWithJava21FISLambda Lambda function using the load test tool hey With:. - Source: dev.to / about 1 year ago
  • Amazon DevOps Guru for the Serverless applications - Part 12 Anomaly detection on Lambda consuming from DynamoDB Streams
    We can reproduce the failure with curl or hey tool, so that we have many failed UpdateProduct Lambda functions. - Source: dev.to / almost 2 years ago
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VisualVM mentions (24)

  • Racket v9.0
    Java has the VisualVM. https://visualvm.github.io/ I would love a similar tool for Racket. - Source: Hacker News / 8 months ago
  • Streaming data from RDBMS with jooq
    For the purposes of this demo, letโ€™s simply count the number of retrieved rows. The Thread.sleep() is included to give me time to open VisualVM and check the metrics:. - Source: dev.to / almost 5 years ago
  • How to Monitor SQL Performance in Spring Boot
    To track query-level metrics, check out the Hibernate Statistics section. Profiling tools like YourKit or VisualVM can help you analyze key metrics such as:. - Source: dev.to / over 1 year ago
  • Can java collection be fixed?
    If you're curious, attach VisualVM and watch the RAM usage graph. You'll notice that Java performs garbage collections long before reaching allocating the maximum amount of RAM allocated, and you can't even feel any performance issue in-game. Source: about 3 years ago
  • Items won't drop when either mined or dropped from inventory and new chunks won't load.
    Hangs and deadlocks are significantly harder to debug. A first step is taking a thread dump so you can see what each thread in the JVM is currently trying to do. I like VisualVM for this, you can also use the command-line tools jps -l (to list all Java PIDs) and jstack for taking a thread dump. Source: about 3 years ago
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What are some alternatives?

When comparing Hey Load Generator and VisualVM, you can also consider the following products

locust - An open source load testing tool written in Python.

Eclipse Memory Analyzer - The Eclipse Foundation - home to a global community, the Eclipse IDE, Jakarta EE and over 350 open source projects, including runtimes, tools and frameworks.

Mapoji - Discuss anything with locals right on map.

JConsole - Provides information about performance and resource consumption for Java applications.

Rave - Rave is a free iOS and Android app where you can watch Netflix, Disney+, YouTube, Prime Video and more while chatting with friends in perfect sync. It's the ultimate virtual movie theatre!

YourKit Java Profiler - Java profiler