Re: [jboss-dev] Small boottime improvement

I found that ScopeKey's hashCode was not being calculated correctly (http://community.jboss.org/message/526058#526058), and fixed this in a local jboss-mdr snapshot, which gives another tiny enhancement. Here are today's numbers, same setup as last time. kernel 2.2.0-Alpha5 mdr 2.2.0-Alpha1 =============== 34s:696ms (1) 20s:562ms (2) 20s:349ms (7) 20s:463ms (10) 20s:622ms (13) 20s:582ms (16) 20s:35ms (19) ------------------------- Average ignoring (1): 20s436ms kernel 2.2.0-SNAPSHOT mdr 2.2.0-Alpha1 =================== 29s:637ms (3) 19s:627ms (4) 19s:786ms (8) 20s:2ms (11) 20s:432ms (14) 19s:827ms (17) 19s:731ms (20) ------------------------------- Average ignoring (3): 19s900ms kernel 2.2.0-SNAPSHOT mdr 2.2.0-SNAPSHOT ============================ 27s:167ms (5) 19s:834ms (6) 19s:702ms (9) 19s:349ms (12) 20s:228ms (15) 19s:346ms (18) 19s:315ms (21) ---------------------------- Average ignoring (5): 19s629ms Now that I'm more into profiling stuff, I'll see if profiling minimal as suggested by Bill makes more sense to me, if not I'll do a few more cycles of these. On 11 Feb 2010, at 12:25, Kabir Khan wrote: > I have been doing some work on profiling and optimizing the jboss-dependency project [1] for kernel 2.2.0.Alpha6 and it seems to have had a small, but still measurable impact :-) > > I did a few startups of AS with jboss kernel 2.2.0.Alpha5 and with a local snapshot. This snapshot contains the work done for Alpha6 with the addition of removing the break in the resolveContexts loop as mentioned in the forum thread. > > The startups were done on a freshly rebooted machine with nothing else running. The startup orders are given in brackets, so I started Alpha5 twice, then SNAPSHOT twice and so on. > > 2.2.0-Alpha5 > ---------------------- > 37s:247ms (1) > 20s:573ms (2) > 20s:275ms (5) > 20s:127ms (7) > 20s:433ms (9) > 20s:329ms (10) > 20s:890ms (13) > > > 2.2.0-SNAPSHOT > ------------------------ > 29s:563ms (3) > 19s:965ms (4) > 19s:821ms (6) > 20s:332ms (8) > 19s:618ms (10) > 19s:905ms (12) > 19s:900ms (14) > > 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? > > Ignoring those initial times leaves me with average start times of: > Alpha5: 20s437ms > SNAPSHOT: 19s923ms > > I'm going to have a final look at jboss-dependency to see if there are any other obvious and easy fixes before moving on to have a look at jboss-kernel. > > [1] http://community.jboss.org/message/525047#525047 > _______________________________________________ > 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