Great news! So basically once it will be in we'll remove jaxb accessor and javagent modules too? Le 10 déc. 2012 06:52, "David Blevins" <david.blev...@gmail.com> a écrit :
> Haven't yet wired it in, but hacked all weekend on finally killing our > JAXB performance overhead. The Java EE descriptors change only every so > many years so it makes zero sense to pay 500ms to 1+s *per boot* on JAXB > discovering and processing our descriptor tree. We pay both reflection and > class generation overhead before it's ready to actually parse anything. > > I forked a 4 year old project, SXC, and hammered on it till it did exactly > what I wanted -- a 100% static code for all xml parsing, no instance > variables, no indirection. Just one big static logic tree. > > Result is it's a 70% reduction -- i.e. xml parsing should take about 30% > of the time it took. The number of classes in memory should *severely* go > down as well. We load 5,000 - 6,000 classes when TomEE boots and nearly > 4,000 are JAXB generated accessors. So that's 4000 more classes a user > will be able to have in their app before running out of perm gen -- > slightly less as JAXB generated accessors are very small. > > Not wired in yet, but it's looking really good. > > > -David > >
