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Performance problem: Definition There are many reasons on what constitutes a performance problem. Most of those revolve around slow response times or high resource usage. Here are some examples of situations in which performance problems become evident: A bottleneck is suspected in one...
This blog is part of a series. For the whole series list see here . Introduction The embedded Global Cache (GC) feature in IBM Integration Bus (IIB) and IBM App Connect Enterprise (ACE) provides an 'in-memory' caching solution which is based on WebSphere Extreme Scale (WXS) technology....
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Tuning Cloud-Native Java Applications for Performance: Scaling Up Versus Scaling Out Introduction All application server environments have one thing in common: limited resources. How best to use those resources will determine the efficiency in processing user requests. There are two...
The Semeru Runtime Open Edition 18.0.1 was released on April 25, 2022 bringing Java 18 features running on the Eclipse OpenJ9 JVM . This release is the first Java 18 release for Semeru Runtimes. Although we hadn't intended to skip the GA release, we made the decision to skip it so we could...
Caching is the process of saving the result of a calculation and potentially re-using it in the future to reduce response times, increase throughput, and reduce load on servers. Caching is a critical and often under-tuned aspect of performance. In this article, we'll cover how to understand Java...
On Wednesday, April 13th, 2022 at 11:00 AM ET, we presented "Tune Java Garbage Collection to improve performance" on IBM Expert TV. Replay: https://ibm.biz/BdPBhT Presentation: https://ibm.biz/BdPdEJ Speakers: Kevin Grigorenko, Gary DeVal In the presentation, we discussed key...
Over the years, we have heard from users of the WebSphere Application Migration Toolkit for Application Binaries (aka binary scanner) that they have added the binary scanner to their build pipeline. This allows their application to be evaluated using the binary scanner with each build of the...
While running a java application, users often encounter memory leak issue. This could be due to Java heap memory leak or native OOM (Out Of Memory) or due to various other reasons. In this blog, we focus on what memory leaks are, what causes those, well known troubleshooting mechanisms for Java...
Number of Liberty JVMs affect throughput and memory footprint Introduction There are many factors that can cause performance issues in an application server environment. Changes to application code, an increase in the client load, and other environmental factors can put a strain on...
As discussed in a past blog post , if you're experiencing performance problems, the first thing to check is whether your garbage collection (GC) is healthy. If the proportion of time in garbage collection is greater than ~10%, then garbage collection is likely unhealthy and the application is...