mstoodle commented on issue #3504: use alpine-java base image (alpine 3.7 + 
oracle 8u162b12_server-jre)
URL: 
https://github.com/apache/incubator-openwhisk/pull/3504#issuecomment-379282892
 
 
   @tysonnorris @markusthoemmes For information about OpenJDK with Eclipse 
OpenJ9 and why it might be interesting for a project like OpenWhisk, you can 
read through the performance statements (and the data that backs them up) at 
the website https://www.eclipse.org/openj9 (click on the first "Learn more" 
link you see). For even more detailed info, you can read about OpenJ9 
performance at https://www.eclipse.org/openj9/oj9_performance.html .
   
   Quick summary is: start-up can be 30%-40% faster and, depending on how you 
run, JVM resident footprint can be 40-60% less. If peak throughput isn't your 
highest priority, then options like -Xtune:virtualized can dramatically 
accelerate your ramp-up time particularly in memory or CPU constrained 
environments. And that's with fully open source, independently JCK8-certified 
builds from AdoptOpenJDK.
   
   I'm not arguing that makes up for the tooling issues that have also been 
raised here; I'm just responding primarily to the "I know nothing about openj9" 
comment :) .
   
   Hope that helps! We're happy to answer specific questions here or at our 
github repo (https://github.com/eclipse/openj9).

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