Re: [jboss-dev] Small boottime improvement

On 11 Feb 2010, at 23:23, Bill Burke wrote: > BTW, my guess is that it is file caching. Good job though! Almost a > full second shaved off. Nothing to sneeze about. > > So what's next for optimization? In dependency the things which had the biggest impact were not breaking out of the resolveContexts() loop and that AbstractDependencyItem was calling controller.getContext() three times when a dependency is not there yet. For me, profiling the whole app server startup gives too much information and different hotspots don't really stand out that much. I'm creating a series of micro-benchmarks to profile different areas in isolation. Next is trying the different things in jboss-kernel, which is more interesting since it pulls in things like MDR and jboss-reflect. I'll have a look at the ScopeKey lookups I mentioned in http://community.jboss.org/message/525925#525925 today, before trying out other parts of kernel. > > * Is VFS3 in trunk/ now? > > * Did somebody look into whether code guards are being done for > logging? > (isDebugEnabled(), etc.) I believe Ales did this for MC > > * Any possible improvements to creating BeanMetaData? > > * How about making our bean.xml files more coarse grain? Meaning *A > LOT* less implementation details exposed through XML. You can do > IoC in > Java you know. The vast majority of details within all our beans.xml > files will never ever change, nor will we want to support users > changing > this stuff. If our beans.xml file are reduced to a few bean > definitions > and classes, would make parsing and creating bean metadata much > much faster. If somebody wants to look into that, some help would be welcome. I've got a feeling my hands will be full the next few weeks :-) > > * I also could resurrect Fast-JAXB, but I didn't want to do that > until > we got under 10 seconds. > > For the MC team, I think the biggest focus should be profiling and > optimizing Minimal. > > > Kabir Khan wrote: >> I actually did a few runs on each server first, but had loads of >> apps open so I rebooted >> On 11 Feb 2010, at 12:33, Jaikiran Pai wrote: >> >>> Kabir Khan wrote: >>>> >>>> One strange thing is that the first time I started each server >>>> they took loads longer than the other times, does somebody know >>>> the reason for that? >>>> >>> Wild guess - Perhaps, JBoss Messaging takes time to create the JBM >>> tables for the first run. The second run the tables are already >>> present >>> in JBOSS_HOME/data folder so i guess it's skipped. Maybe deleting >>> the >>> data folder before starting the server, the second time, will >>> show no >>> significant difference between the two runs. >>> >>> regards, >>> -Jaikiran >>> _______________________________________________ >>> jboss-development mailing list >>> jboss-development(a)lists.jboss.org >>> https://lists.jboss.org/mailman/listinfo/jboss-development >> >> >> _______________________________________________ >> jboss-development mailing list >> jboss-development(a)lists.jboss.org >> https://lists.jboss.org/mailman/listinfo/jboss-development > > -- > Bill Burke > JBoss, a division of Red Hat > http://bill.burkecentral.com > _______________________________________________ > jboss-development mailing list > jboss-development(a)lists.jboss.org > https://lists.jboss.org/mailman/listinfo/jboss-development _______________________________________________ jboss-development mailing list jboss-development(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/jboss-development