Fast boot using uncompress jbosseap jars

[nekop]

If we can uncompress jbosseap jar files, it would save 20% of CPU usage spent for uncompressing jar files at runtime and get jbosseap boot process faster. This trick is used in Java itself - the core api rt.jar is an uncompress jar.

On my laptop, using standard compressed jars:

13:49:38,660 INFO [org.jboss.as](Controller Boot Thread) JBAS015874: JBoss EAP 6.3.0.GA (AS 7.4.0.Final-redhat-19) started in 3130ms - Started 151 of 189 services (56 services are lazy, passive or on-demand)

Using EAP uncompressed jars:

13:52:50,581 INFO [org.jboss.as](Controller Boot Thread) JBAS015874: JBoss EAP 6.3.0.GA (AS 7.4.0.Final-redhat-19) started in 2631ms - Started 151 of 189 services (56 services are lazy, passive or on-demand)

The jbosseap jars are installed via rpm, so we probably need a tricky approach to implement this:

• Release uncompress version of jbosseap rpm
• Hook and generate uncompress version
  • jbosseap cartridge generates uncompress version of jbosseap from jbosseap rpm
• Other?

What do you think?