when we profile as7/eap6 we've often use oprofile since it seems more accurate regarding finding the correct hotspots and it isnt as intrusive as jprofiler/yourkit. then we often use jprofiler to look at call-graphs, blocking threads, etc.
ståle On Tue 2013-01-29 17:30, Lincoln Baxter, III wrote: > What kind of information do you need? I was unable to get YourKit to dump a > .snapshot file for some reason. If that's what you need, I can try again. > Which profile mode? This was done using tracing. > > Thanks! > > > On Tue, Jan 29, 2013 at 4:32 PM, Stuart Douglas > <[email protected]>wrote: > > > The screenshot does not really tell us much. We would need to see the > > actual profile information. > > > > Stuart > > > > > > Lincoln Baxter, III wrote: > > > >> Hi Jozef, Stuart, and Weld-devs, > >> > >> In Forge 2 we are using Weld extensively, and one of the things we do is > >> start up many instances simultaneously. > >> > >> We may have anywhere from one to one-hundred or more weld instances. > >> Currently we have only seen around 10-12 instances, and performance is > >> "Okay", but in theory, we could see hundreds of instances, at which > >> point, performance starts to be a concern. We're working around this > >> problem by disabling CDI support on some internal addons, but... it's > >> not really reasonable to expect that everyone will do this. > >> > >> Which means... we need to figure out how to shave as much time off the > >> bootstrap as possible. Currently each weld instance takes anywhere from > >> 80ms to 450ms to start (not really sure why such variation yet,) and > >> we'd hopefully like to get that down even lower, around 10-20ms. > >> Classloading time only would be optimal, but obviously difficult to > >> achieve. > >> > >> > >> How can we get the most speed out of Weld? Most of our deployments have > >> only ~15 bean classes at most. It seems like a lot of time (~30-40%) is > >> being spent in the Google concurrent collections. > >> > >> (Screenshot attached.) > >> > >> Thanks, > >> > >> -- > >> Lincoln Baxter, III > >> http://ocpsoft.org > >> "Simpler is better." > >> > > > > > -- > Lincoln Baxter, III > http://ocpsoft.org > "Simpler is better." > _______________________________________________ > forge-dev mailing list > [email protected] > https://lists.jboss.org/mailman/listinfo/forge-dev _______________________________________________ weld-dev mailing list [email protected] https://lists.jboss.org/mailman/listinfo/weld-dev
