mstoodle commented on issue #3504: use alpine-java base image (alpine 3.7 + 
oracle 8u162b12_server-jre)
   @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 (click on the first "Learn more" 
link you see). For even more detailed info, you can read about OpenJ9 
performance at .
   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 (

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