In recent times, businesses have placed an emphasis on modernizing their software stack into cloud-based services. This transformation has generally meant breaking up big complex long running modules into much smaller short-lived units. These units are often packaged as containers and can be individually provisioned in worker nodes and scaled to meet demands. The days…
With the recent 0.32 release of Eclipse OpenJ9, the JITServer technology was officially released and made available for the Linux on IBM z System/LinuxONE platforms. This release also coincides with the recently launched IBM z16 technology. This blog will provide an overview of the JITServer technology and demonstrate some of its key benefits using the…
Open J9’s Balanced GC policy is a region based, generational collector, which aims to provide a bound on worst case pause times, by eliminating the need for frequent global garbage collections. A more detailed description of how Balanced GC policy works, along with some of its advantages over the Gencon GC policy, can be found…
This blog is co-authored by Hang Shao, Marius Pirvu, Tobi Ajila and Vijay Sundaresan. 1. Introduction Over a decade ago, the common form of deployment was large monolithic applications that handled all the business logic. In this model applications typically had long deployment windows and they were typically deployed on large on-prem server farms. Since…
Tomcat startup time is reduced by ~30% by enabling the Shared Class Cache (SCC) in the Docker images. In my earlier blog , I measured the Performance of Tomcat with Tradelite7 Application without using any docker images and we saw the boost of Startup time with default Shared Cache in OpenJ9. In this article, let’s…
