[jboss-dev] Small boottime improvement

[Jason T. Greene]

Rémy Maucherat wrote:
> On Fri, Feb 26, 2010 at 1:55 PM, Rémy Maucherat
> <remy.maucherat at gmail.com> wrote:
> Results before/after VFS 3.
> 
>> JBoss Web 2.1: 0.6s / 6.8MB
>> minimal: 2.6s / 35MB
> 
> minimal: 2.3s / 30.2MB
> 
>> jbossweb-standalone (with the jbw release packaging): 3.9s / 65.5MB
> 
> jbossweb-standalone (with the jbw release packaging): 3.8s / 56.4MB
> (small gain here, so some of the benefit from VFS 3 probably comes
> from better handling of the large amount of common JARs, which are
> heavily trimmed in that packaging)
> 
> On the plus side, in 2000, it took Tomcat 4 that amount of time to
> start, and the memory use was relatively much bigger than this ;)
> 
>> default: 9.5s / 161.5MB
> 
> default: 8.95s / 144.5MB
> 
>> all: 20s / 237MB
> 
> all: 19.2s / 209.8MB
> 
> So there's an improvement (and the next MC update will also bring
> another improvement). 

I got similar numbers after starting each instance 5 times for the pre 
and post vfs3 integration I saw an average 6.5% improvement. The memory 
overhead was reduced by 18.8% (33MB) on my system.

Very good job on the lack of huge regressions.

+100 John did a fantastic job on the integration effort. Thanks John!

-- 
Jason T. Greene
JBoss, a division of Red Hat