Software Alternatives, Accelerators & Startups

VisualVM VS Loader.io

Compare VisualVM VS Loader.io and see what are their differences

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VisualVM logo VisualVM

VisualVM is a visual tool integrating several commandline JDK tools and lightweight profiling...

Loader.io logo Loader.io

Loader.io is a simple cloud-based load testing service
  • VisualVM Landing page
    Landing page //
    2021-10-18
  • Loader.io Landing page
    Landing page //
    2021-09-26

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 application’s performance due to resource consumption.

Loader.io features and specs

  • Ease of Use
    Loader.io offers a straightforward and intuitive user interface, making it easy for users to set up and run load tests without a steep learning curve.
  • Quick Test Setup
    With Loader.io, you can quickly set up load tests by simply verifying your website, inputting the target URL, and defining parameters such as duration and the number of clients.
  • Scalability
    Loader.io allows you to scale your tests from a few clients to hundreds of thousands, accommodating different testing needs.
  • Free Tier
    Loader.io offers a free tier that allows users to perform basic load testing, which is great for small projects or initial testing phases.
  • Integration
    Loader.io integrates well with other services and CI/CD pipelines, enabling automated performance testing as part of your development workflow.

Possible disadvantages of Loader.io

  • Limited Test Duration
    The free tier and some lower-tier plans have limitations on the duration of load tests, which might not be sufficient for testing long-running processes.
  • Complex Scenarios
    Loader.io may not support highly complex testing scenarios out-of-the-box, such as tests requiring advanced scripting or multi-step transactions.
  • Resource Limitations
    High concurrency and load levels may require higher-tier plans, which can become costly for larger-scale testing.
  • Geographic Limitations
    There may be limitations on the geographical distribution of clients, which could affect tests intended to simulate traffic from varied regions.
  • Reporting
    While Loader.io provides basic reporting, it may lack the depth and customization options offered by some other performance testing tools, such as detailed analytics and advanced visualization features.

Analysis of Loader.io

Overall verdict

  • Yes, Loader.io is considered to be a good tool for load testing due to its ease of use, effectiveness, and robust feature set. It offers a free tier which is beneficial for smaller projects or for initial testing needs, expanding to paid plans for more intensive services.

Why this product is good

  • Loader.io is a useful tool for load testing your web applications. It allows developers and testers to simulate thousands of connections to an application, helping to ensure its reliability and performance under stress. It is cloud-based, simple to set up, and integrates well with various CI/CD tools. Its user-friendly interface and ability to test different scenarios make it a popular choice among many developers and organizations.

Recommended for

  • Startups and small businesses looking for an easy-to-use load testing tool
  • Development teams requiring performance testing integration within CI/CD pipelines
  • Organizations wanting to conduct basic to intermediate level load testing in a cost-effective manner
  • Projects that need to simulate user activity and web traffic to identify potential bottlenecks

VisualVM videos

Java Heap Dump Analysis - VisualVM Tutorial

More videos:

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

Loader.io videos

No Loader.io videos yet. You could help us improve this page by suggesting one.

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Category Popularity

0-100% (relative to VisualVM and Loader.io)
Software Development
100 100%
0% 0
Monitoring Tools
0 0%
100% 100
Resource Profiling And Monitoring
Website Testing
0 0%
100% 100

User comments

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Social recommendations and mentions

VisualVM might be a bit more popular than Loader.io. We know about 23 links to it since March 2021 and only 22 links to Loader.io. 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.

VisualVM mentions (23)

  • Streaming data from RDBMS with jooq
    For the purposes of this demo, let’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 4 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 / 6 months 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 2 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 2 years ago
  • Top metrics for Elasticsearch monitoring with Prometheus
    The Java VisualVM project is an advanced dashboard for Memory and CPU monitoring. It features advanced resource visualization, as well as process and thread utilization. - Source: dev.to / about 2 years ago
View more

Loader.io mentions (22)

  • express server failing after high number of requests in digital ocean droplet with high configuration
    I wanted to see how many requests can this server handle, so I have used loader.io and run10k requests for 15 seconds. But it seems 20% percent of request fail due to timeout, and the response time keep increasing. Source: almost 2 years ago
  • Why everyone says PostgreSQL better then mongo?
    I ran on the same hardware 5k current get requests through https://loader.io/ tool to the server with each db. Source: over 2 years ago
  • free-for.dev
    Loader.io — Free load testing tools with limitations. - Source: dev.to / over 2 years ago
  • How to stress test my website?
    We put 50 servers of puppets against 50 http servers and see who wins. Ever had 10,000 in your checkout line at once? loader.io is for posers. Also what if there's 250,000 wanting to join the checkout line. Well we can scale to the moon and not handle that. I recommend a waiting room like Queue It. Source: almost 3 years ago
  • Best Way to Benchmark Web Hosting?
    I've used what you said, identical setups (with Wordpress) and some plugins: WordPress Hosting Benchmark tool and WP Performance Tester plus some runs with loader.io. Source: almost 3 years ago
View more

What are some alternatives?

When comparing VisualVM and Loader.io, you can also consider the following products

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.

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

Robot Console - Robot Console is a Message and Event Monitoring Software for IBM i thathas automatic message management, resource monitoring, and log monitoring.

Apache JMeter - Apache JMeter™.

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

k6 Cloud - Managed load testing service built on top of the popular open-source project k6.