Ram Lakshmanan

Ram Lakshmanan

Founder & Architect, JVM Diagnostic Tools

About Ram Lakshmanan
Ram Lakshmanan is the founder and architect of popular JVM diagnostic tools: GCeasy, fastThread, HeapHero, and yCrash. Ram has a deep focus on Java performance engineering & troubleshooting. He has helped several Fortune 500 companies including Apple, Visa, ServiceNow, and Workday to diagnose and resolve complex production issues.

On this blog, Ram shares his real-world experiences, engineering challenges, and lessons from building diagnostic tools used in some of the world’s most demanding production environments. His writing combines practical advice with hands-on examples in a simple, easy-to-understand language.

When developers are stuck with mysterious OutOfMemoryError, long GC pauses, or unresponsive applications, Ram’s tools and techniques provide the clarity they need.

Tools Architected by Ram:

  • GCeasy: Analyzes Java GC logs to reduce pause times and optimize memory usage.
  • fastThread: Diagnoses thread dump issues like deadlocks, BLOCKED threads, and CPU spikes.
  • HeapHero: Visualizes heap dumps to detect memory leaks and optimize object footprint.
  • yCrash: Automates JVM root cause analysis by capturing and analyzing 360° production artifacts.

Follow Ram’s Work

Ram speaks at various developer conferences all over the world and conducts performance engineering workshops to share JVM tuning strategies and production troubleshooting techniques.

Recent Blog Posts by Ram

How ‘yCrash Log’ uses AI & ML?

Application logs are crucial for engineers to troubleshoot production incidents, but manual inspection is often inefficient. The 'yCrash Log' tool utilizes AI and ML to analyze and structure unfiltered log data, identify errors, and provide solutions, improving incident response time and system reliability. It enhances traditional log management by automating root cause analysis.

yCrash Buddy – Your AI Troubleshooting Assistant

yCrash Buddy is an AI Troubleshooting assistant aimed at enhancing team efficiency by tenfold. It analyzes incident reports and artifact dumps, providing interpretable insights and actionable recommendations. Upcoming features include autonomous troubleshooting, intelligent execution of engineer instructions, and automated performance testing. Available in Cloud and On-Prem editions, it requires a license for activation.

Memorable Trip to NHS Scotland for .NET Discussion!

Last week, I traveled from San Francisco to London for a keynote on Java performance issues, then visited NHS Scotland in Dundee. I appreciated their efficiency in adopting our yCrash tool. Productive meetings about .NET support led to planned releases in early 2026. Scotland's hospitality and culture left a lasting impression.

Key Challenges in Troubleshooting Customer On-Premise Applications

Troubleshooting on-premise application issues is complicated due to limited access to customer systems and reliance on their support staff for vital diagnostic data. Challenges include incomplete information, security concerns, miscommunication, and environmental instabilities. Implementing the yc-360 Script can streamline artifact collection, improving diagnosis and reducing resolution times.

Performance Lab Tests Say Green. Production Says Otherwise. Why? 

The post addresses challenges faced in performance testing, including discrepancies between test and production environments, reliance on synthetic data, and the absence of long-running tests. To improve detection of performance issues, it suggests enhancing testing with Micro-Metrics, implementing chaos engineering, and recording production traffic for realistic simulations.

Best Practices for Capturing the Micro-Metrics Labs Often Miss

To accurately forecast production performance issues, validating Micro-Metrics is essential. Key best practices include enabling Garbage Collection Logs, triggering 'yc-360 Script' midway and at the end of tests, and utilizing self-trigger M3 mode for endurance tests. Comparing new and previous baseline incident reports helps identify performance degradation trends effectively.

Want to Learn More?

Explore JVM performance training and DevOps case studies shared by Ram and the yCrash team.

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