JRE 11 Runtime Comparision

Compare JRE 11 Runtimes for Start-Up Time, Runtime Performance and Steady State Resource Utilisation

The following Runtimes are compared

1. Adopt JDK - OpenJ9
2. Adopt JDK - HostSpot
3. OpenJDK
4. Distroless JRE
5. AWS - Amazoncorretto
6. Adopt JDK - OpenJ9 - With ClassSharing
7. Same as 6

Image Sizes

Threat Posture

Start-up Times

Note: Take the start-up times with a pinch of salt as it was on my MAC which had Kube, Monitoring Stack (Promeetheus, Cadvisor, Grafana, Alert Manager, NodeExporter) and Docker Swarm running during the test.

Tests

1. Run without ClassSharing for OpenJ9 - Notice Decrease in Memory and CPU. But spike in CPU consumption on boot-up.
2. Run with ClassSharing for OpenJ9 - Notice Improvement in Boot Time and Increase in Memory Consumption but Drop in CPU Utilisation dues to Optimisation loaded into memory.

Run with ClassSharing for OpenJ9

BootUp

During Test

Post Test

Class Cache Size

Run without ClassSharing for OpenJ9

Run #1 and Steady State

Run #1

Run #1 - Post Test

Run #2 and Steady State

Run #2

Run #2 - Post Test