private void addTestrunnerComponentsIfTester(DeployState deployState) {
        if (deployState.isHosted() && deployState.getProperties().applicationId().instance().isTester()) {
            addPlatformBundle(PlatformBundles.absoluteBundlePath("vespa-testrunner-components"));
            addPlatformBundle(PlatformBundles.absoluteBundlePath("vespa-osgi-testrunner"));
            addPlatformBundle(PlatformBundles.absoluteBundlePath("tenant-cd-api"));
            if(deployState.zone().system().isPublic()) {
                addPlatformBundle(PlatformBundles.absoluteBundlePath("cloud-tenant-cd"));
            }
        }
    }
The heap size % of total memory available to the JVM process.
config-model/src/main/java/com/yahoo/vespa/model/container/ApplicationContainerCluster.java