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GC easy – Universal Java GC Log Analyser

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Educational – Best Practises

jstat – Analysis

jstat is a simple utility tool, that is present in JDK to provide JVM performance-related statistics like garbage collection Continue reading “jstat – Analysis”

MEMORY WASTED BY SPRING BOOT APPLICATION

One of the widely wasted resources in the world today is Memory. Due to inefficient programming, surprising (sometimes ‘shocking’) amount of memory is wasted. We see this pattern repeated in several enterprise applications. Continue reading “MEMORY WASTED BY SPRING BOOT APPLICATION”

TCP: out of memory — consider tuning tcp_mem

Recently we experienced an interesting production problem. This application was running on multiple AWS EC2 instances behind Elastic Load Balancer. Continue reading “TCP: out of memory — consider tuning tcp_mem”

All you need to know about System.gc()

In this article, we have attempted to answer most common questions around System.gc() API call. We hope it may be of help. Continue reading “All you need to know about System.gc()”

LARGE OR SMALL MEMORY SIZE FOR MY APP?

Should I be running my application with few instances (i.e. machines) with large memory size or a lot of instances with small memory size? Which strategy is optimal? This question might be confronted often. Continue reading “LARGE OR SMALL MEMORY SIZE FOR MY APP?”

OUTOFMEMORYERROR RELATED JVM ARGUMENTS

JVM has provided helpful arguments to deal with OutOfMemoryError. In this article, we would like to highlight those JVM arguments. It might come handy for you when you are troubleshooting OutOfMemoryError. Continue reading “OUTOFMEMORYERROR RELATED JVM ARGUMENTS”

AUTOMATING – OUTOFMEMORYERROR TROUBLESHOOTING

Troubleshooting OutOfMemoryError or any memory related problem is done manually even in 2019. Troubleshooting and identifying the root cause of OutOfMemoryError can even be automated, by following below mentioned 3 steps:  Continue reading “AUTOMATING – OUTOFMEMORYERROR TROUBLESHOOTING”

DOES 32-BIT OR 64-BIT JVM MATTER ANYMORE?

There are a few distinct differences and subtle nuances between 32-bit JVM and 64-bit JVM. We thought we will try to clarify them through this question & answer article. Continue reading “DOES 32-BIT OR 64-BIT JVM MATTER ANYMORE?”

MICROMETRICS TO FORECAST APPLICATION PERFORMANCE

Even unpredictable weather is being forecasted. But after all these technological advancements, are we able to forecast our application performance & availability? Are we able forecast even for the next 20 minutes? Continue reading “MICROMETRICS TO FORECAST APPLICATION PERFORMANCE”

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