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wrk VS VisualVM

Compare wrk VS VisualVM and see what are their differences

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wrk logo wrk

HTTP benchmarking tool capable of generating significant load on a multi-core CPU.

VisualVM logo VisualVM

VisualVM is a visual tool integrating several commandline JDK tools and lightweight profiling...
  • wrk Landing page
    Landing page //
    2023-07-28
  • VisualVM Landing page
    Landing page //
    2021-10-18

wrk features and specs

  • High Performance
    wrk is able to generate significant load, making it suitable for testing how a web server performs under stress.
  • Ease of Use
    The command-line interface of wrk is straightforward, allowing users to quickly set up and execute tests with minimal configuration.
  • Lua Scripting Support
    wrk supports Lua scripting, which allows users to customize requests and extend testing functionalities beyond basic HTTP requests.
  • Open Source
    Being open source, wrk is freely available for use and modification, and it benefits from community contributions and feedback.
  • Multi-threading
    wrk is designed to take advantage of multi-threading, which helps in utilizing system resources efficiently for load testing.

Possible disadvantages of wrk

  • Limited Metrics
    wrk provides basic metrics like latency and throughput, but it lacks built-in detailed analytical tools available in other performance testing tools.
  • No GUI
    It is a command-line tool without a graphical user interface, which might be a barrier for non-technical users or those who prefer visual representations.
  • Scripting Complexity
    While Lua scripting adds flexibility, it can also increase complexity, especially for users who are not familiar with Lua or programming.
  • Limited Protocol Support
    wrk is primarily built for HTTP benchmarking, and it does not natively support other protocols such as WebSocket or gRPC.
  • No Distributed Testing
    wrk does not support distributed load testing out-of-the-box, limiting its effectiveness in simulating geographically distributed traffic.

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.

wrk videos

WRK Core Collection Line Review

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 wrk and VisualVM)
Hiring And Recruitment
100 100%
0% 0
Software Development
0 0%
100% 100
Monitoring Tools
100 100%
0% 0
Resource Profiling And Monitoring

User comments

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Social recommendations and mentions

wrk might be a bit more popular than VisualVM. We know about 34 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.

wrk mentions (34)

  • Where misunderstood with Monoliths and Kubernetes: Benchmark
    Too many teams migrate to Kubernetes based on vendor benchmarks or blog posts that test trivial workloads: a "hello world" endpoint with no business logic, no GC pressure, and no network overhead. Our benchmark proves that synthetic workloads lie: the 12% latency gap between monolith and K8s at 1000 RPM disappears entirely if you test a "hello world" endpoint (K8s overhead is 2ms, same as monolith). For real... - Source: dev.to / 3 months ago
  • Cache Comparison: Redis 8.0 vs. Memcached 1.6 vs. Varnish 7.4 for Web App Performance
    Implemented cache warming for top 10k product pages via a nightly cron job using wrk to pre-populate Varnish and Memcached. - Source: dev.to / 3 months ago
  • uRocket - Reactor Networking in C# with io_uring
    Since I do not own multiple server machines or top of the like Network Interface Cards, there is of course some level of noise in these benchmarks. The load is generated using wrk and the source code for each: uRocket System.Net.Socket. - Source: dev.to / 7 months ago
  • 10 Performance Tips for Scaling Your Node.js API
    Wrk: a powerful HTTP benchmarking tool written in C. - Source: dev.to / about 1 year ago
  • Bombardier: Fast cross-platform HTTP benchmarking tool written in Go
    Cool, I didn't see this tool before. I have tried most open source load testing tools out there, as part of writing a couple of review articles on them (https://grafana.com/blog/2020/03/03/open-source-load-testing-tool-review/) and my gut reaction is this one looks like a Golang alternative to Wrk (https://github.com/wg/wrk) in that its main feature is speed. I'd bet Wrk... - Source: Hacker News / 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 wrk and VisualVM, you can also consider the following products

Recruitee - Europe's leading recruitment software for streamlining, automating and optimizing your recruitment process. Winner of OnRec Award 2018.

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.

Workable - Hire better with Workable. Post to the top job boards and enjoy a simple, intuitive applicant tracking system, made for teams. Start a free trial today.

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

Apache JMeter - Apache JMeterโ„ข.

YourKit Java Profiler - Java profiler