Gremlin Reliability Management Platform vs OpenText Diagnostics comparison

Gremlin and OpenText are both solutions in the Application Performance Monitoring (APM) and Observability category. Gremlin is ranked #23 with an average rating of 8.7, while OpenText is ranked #59. Gremlin holds a 0.1% mindshare in APM, compared to OpenText’s 0.6% mindshare. Additionally, 85% of Gremlin users are willing to recommend the solution, compared to 75% of OpenText users who would recommend it.

Gremlin Reliability Managem...

Read 7 Gremlin Reliability Management Platform reviews

1,165 Views
291 Comparison Views

85% willing to recommend

OpenText Diagnostics

Read 4 OpenText Diagnostics reviews

1,387 Views
1,359 Comparison Views

75% willing to recommend

Gremlin Reliability Managem...

OpenText Diagnostics

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Executive Summary

We performed a comparison between Gremlin Reliability Management Platform and OpenText Diagnostics based on real PeerSpot user reviews.

Find out in this report how the two Application Performance Monitoring (APM) and Observability solutions compare in terms of features, pricing, service and support, easy of deployment, and ROI.

To learn more, read our detailed Gremlin Reliability Management Platform vs. OpenText Diagnostics Report (Updated: April 2026).

Buyer's Guide

Gremlin Reliability Management Platform vs. OpenText Diagnostics

April 2026

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Helped 894,738 peers since 2012

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:

Categories and Ranking

Gremlin Reliability Managem...

Ranking in Application Performance Monitoring (APM) and Observability

23rd

Average Rating

8.8

Reviews Sentiment

7.0

Number of Reviews

Ranking in other categories

IT Infrastructure Monitoring (25th), DevSecOps (7th)

OpenText Diagnostics

Ranking in Application Performance Monitoring (APM) and Observability

59th

Average Rating

7.8

Number of Reviews

Ranking in other categories

No ranking in other categories

Mindshare comparison

As of May 2026, in the Application Performance Monitoring (APM) and Observability category, the mindshare of Gremlin Reliability Management Platform is 0.1%. The mindshare of OpenText Diagnostics is 0.6%, up from 0.2% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Application Performance Monitoring (APM) and Observability Mindshare Distribution
Product	Mindshare (%)
Gremlin Reliability Management Platform	0.1%
OpenText Diagnostics	0.6%
Other	99.3%

Application Performance Monitoring (APM) and Observability

Featured Reviews

Varun Lellapalli

Senior Software Engineer at a sports company with 10,001+ employees

Chaos experiments have revealed weak points and now provide controlled cost-saving tests

The best features of Gremlin Reliability Management Platform are the safe failure injection, which is crucial as we can simulate the failures in a manner that we know these are just dumping tests and not the actual issues. Whether it is the CPU spike or the memory exhaustion, or the network latency, or the server shutdown, server shutdown is one of the most favorite features that I have in Gremlin Reliability Management Platform. The controlled blast radius is another standout feature. The controlled blast radius feature has helped my team in that we actually wanted to target only one specific container, our Docker containers that we deployed. It helped us to conduct tests in a very specific, isolated manner instead of launching a larger test or focusing on hundreds of servers at a time, resulting in very limited impact. Since ours is a very small team, we do not want to impact other servers. This controlled blast radius helped us to only focus on our servers and not impact any other team. Gremlin Reliability Management Platform has positively impacted my organization because before Gremlin Reliability Management Platform, we did not even know how to conduct these chaos engineering tests. We heard about it, but we had no idea of how to do something of that nature. If there are ten servers, ten systems in our architecture and if suddenly something goes down, nobody knew what would happen next. We did not even know how to simulate these types of tests. This lack of confidence has been mitigated by using Gremlin Reliability Management Platform. Now we can confidently test and see which system is the most critical. If this goes down, what happens? How much business valuation are we going to impact? How much loss are we going to incur? All of this is now clearly visible and transparent. Since using Gremlin Reliability Management Platform, we were able to reduce the incidents by six percent after conducting our limited experiments. We were also able to increase the uptime from ninety-eight to ninety-nine, which represents a one percent increase in uptime.

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Ravi Suvvari

Performance and Fault-tolerance Architect with 1,001-5,000 employees

Very good for transaction level monitoring, but expensive and HP needs better support and training

HP Diagnostics is a very good monitoring tool especially for transaction level monitoring -- it shows hot spots which can be drilled down to DB level, table, query, SP's, record and field level and also at Object level, Classes level,method or Augment levels instead of pinpointing bottlenecks at layer level it goes deep inside for information. It has very good tracing capabilities despite being an agent based tool compared to other agent less monitoring tools. Overall a very good tool for monitoring application diagnostics for quick and easy resolution with help of thread information. Drills down from slow, end-user transactions to the bottle necked component, method, or SQL statement, helping to solve memory, exception, and other common problems Key features and benefits • Automatically detects all components touched by a business process and traces them with no user intervention • Provides complete application visibility across the application lifecycle, enabling higher application quality when applications go live • Reduces mean time to resolution (MTTR) in your J2EE, .NET, ERP, or CRM (SAP, Oracle®, PeopleSoft) environment • Integrates fully with HP Business Availability Center software, HP LoadRunner, and HP Performance Center.

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Quotes from Members

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:

Pros

"More than anything, we fix failures even before they occur, which is basically proactive risk detection and risk mitigation."

"Gremlin Reliability Management Platform is amazing with the reliability score, providing built-in Chaos Engineering experiments that you run on your service to receive a reliability score along with insights on the issues and risks present in your service that you can examine and work on."

"Gremlin Reliability Management Platform has impacted my organization positively as it helped a lot and reduced our failures, allowing us to find critical pinpoints in our application that had existed for three to ten months and led to too many improvements, reduced downtime, and a smoother experience for our application on AWS."

"Since using Gremlin Reliability Management Platform, we were able to reduce the incidents by six percent after conducting our limited experiments, and we were also able to increase the uptime from ninety-eight to ninety-nine, which represents a one percent increase in uptime."

"We are seeing a return on investment from using Gremlin Reliability Management Platform because we are getting less production issues by thirty percent, as I mentioned earlier, making it a great investment."

"Using Gremlin Reliability Management Platform has raised more than fifty percent of the reliability of the infrastructure."

"The Enterprise Reliability Platform has positively impacted my organization as it has significantly increased the efficiency and reliability of our systems."

"For banking and telecom solutions, it's been quite useful."

"The diagnostics and configuration are the solution's most valuable aspects."

"HP Diagnostics is a very good monitoring tool especially for transaction level monitoring -- it shows hot spots which can be drilled down to DB level, table, query, SP's, record and field level and also at Object level, Classes level, method or Augment levels instead of pinpointing bottlenecks at layer level it goes deep inside for information."

"The most valuable feature of Micro Focus Diagnostics is the information reported from an application that has timed out. For example, when you're Googling, or you're booking a ticket for Burj Khalifa here, the longest tower in the world, there are situations where the system can time out. There are times when you might not receive a response on the payment gateway or you are not able to find the reservation. The customer only receives the information that the session has timed out."

"The information from the diagnostics is detailed."

"For banking and telecom solutions, it's been quite useful."

Cons

"I think that it will be important to have resources to perform self-directed studies on Gremlin Reliability Management Platform as an improvement."

"If you really look at the cost-benefit visibility, it is not very evident by using Gremlin Reliability Management Platform."

"I think Gremlin Reliability Management Platform can be improved by integrating with more AWS services or GCP services."

"Gremlin Reliability Management Platform can be improved as the pricing is a bit expensive and the learning curve for beginners is a bit difficult."

"Price is little expensive for number of license points and HP Diagnostics trainers are not available in market and no proper support from HP for any diagnotics level queries or issues."

"The GUI and metrics of Micro Focus Diagnostics can be improved."

"The interface is very old, and not very user-friendly. Most of our clients don't like the UI."

"The interface is very old, and not very user-friendly."

"The interface could be more user friendly."

"The GUI and metrics of Micro Focus Diagnostics can be improved. The metrics the solution gathers can be limited and could be enhanced by giving more details."

"The interface could be more user friendly."

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Top Industries

By visitors reading reviews

Printing Company

11%

Construction Company

11%

Financial Services Firm

10%

Sports Company

10%

Construction Company

14%

Performing Arts

11%

Financial Services Firm

11%

Manufacturing Company

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	3
Large Enterprise	6

No data available

Questions from the Community

What needs improvement with Gremlin Reliability Management Platform?

There are certain areas where I think Gremlin Reliability Management Platform can improve. I would certainly add features related to AI and GenAI for recommendations. While dependency identificatio...

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What is your primary use case for Gremlin Reliability Management Platform?

The primary reason I am using Gremlin Reliability Management Platform is to proactively test failures, identify weaknesses in my system, and fix them before real incidents actually occur. From a pr...

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What advice do you have for others considering Gremlin Reliability Management Platform?

I would certainly suggest others venture into Gremlin Reliability Management Platform, as there is no second thought about it. However, I would not recommend jumping straight into production chaos....

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Product Reports

Buyer's Guide

Gremlin Reliability Management Platform

May 2026

Gremlin Reliability Management Platform report

Download Gremlin Reliability Management Platform product report

Buyer's Guide

Application Performance Monitoring (APM) and Observability

April 2026

Download OpenText Diagnostics product report

Also Known As

No data available

Micro Focus Diagnostics, MF Diagnostics

Overview

Gremlin Reliability Management Platform empowers organizations to proactively identify and mitigate potential failures. It enhances system resilience through controlled chaos engineering, aiding tech teams in delivering reliable services.

Designed for tech-savvy users, Gremlin enables teams to implement chaos engineering effectively to ensure system reliability. It offers precise control over variables, allowing teams to simulate real-world scenarios and fortify system operations. Gremlin plays a strategic role in preventing downtime and maintaining optimal service delivery through a suite of advanced tools tailored for IT infrastructure.

What are the most important features of Gremlin?

Attack Library: Offers diverse failure scenarios for comprehensive testing.
Security Control: Ensures safe execution of tests with access restrictions.
Detailed Reporting: Provides insights into system weaknesses and improvements.
API Access: Facilitates automation and integration with existing systems.

What benefits should users look for in reviews?

Increased Uptime: Improved system availability through proactive testing.
Cost Efficiency: Reduced need for corrective measures post-failure.
Team Collaboration: Enhances coordination among IT and operations teams.
Product Reliability: More robust and reliable service delivery to clients.

In industries such as e-commerce, finance, and healthcare, Gremlin helps maintain service reliability by identifying vulnerabilities before they affect operations. IT teams can simulate stress tests specific to their industry, ensuring systems are resilient against potential threats, enhancing customer satisfaction, and securing business continuity.

Gremlin

OpenText Diagnostics offers detailed transaction-level monitoring, providing insights at database, object, and method levels. It aims to improve application visibility and reduce mean time to repair (MTTR) while integrating smoothly with HP's software suite.

OpenText Diagnostics automatically detects components, allows for flexible configuration, and provides detailed diagnostic information of application timeouts. It is particularly useful in identifying root causes like database or network issues. However, there are challenges with its interface, high pricing, lack of trainers, and insufficient cloud-based environment support. It is widely used in finance and government sectors for examining application code.

What are the most important features?

Transaction-Level Monitoring: Provides deep insights at DB, object, and method levels.
Automatic Component Detection: Enhances application visibility by detecting components automatically.
Integration with HP Software: Fully integrates with HP's software for a seamless experience.
Performance Configuration: Allows adjustments for better performance.

What benefits should users look for?

Reduced MTTR: Quick identification and resolution of issues.
Detailed Diagnostics: Offers insights into timeouts and root causes.
Efficient Issue Identification: Valuable for pinpointing and understanding session timeouts.

In finance and government sectors, OpenText Diagnostics is used to efficiently view application data and code inspection. Organizations transitioning to cloud platforms like AWS for improved data management often use it alongside tools like Micro Focus BPM to enhance functionality across environments including SAP, Java, and MQ.

OpenText

Sample Customers

Information Not Available

BSkyB, Alior Bank

Buyer's Guide

Gremlin Reliability Management Platform vs. OpenText Diagnostics

April 2026

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