On 24 Feb 2003 at 17:13, Jordi Salvat i Alabart wrote: > What about only cloning the elements when we actually need to modify > them? Or even just agree to never modify them and store the "variable" > data in the result instead?
For the most part, this is what happens. TestElements are only cloned in three cases: 1. If they implement PerThreadClonable. Not really a problem since it's obviously necessary for those that do it, and it all happens before the threads start. 2. If they have functions that get replaced with real-time values during test runs. In this case, they get cloned at the time that their functions get replaced. 3. If they implement PerSampleClonable. There's probably some wiggle room here since AbstractSampler extends PerSampleClonable perhaps unnecessarily - most samplers could probably be written so as not to modify themselves. In any case, that still leaves a lot of cloning going on. A pool of test element objects would probably still help -Mike > > Mike Stover wrote: > >>A related issue is all that cloning (of test elements) that's happening > >>behind the scenes. I've not yet had time to actually measure, but I have > >>a feeling that it is tremendously expensive -- not the cloning itself, > >>but cleaning up all the garbage afterwards. Anyone got figures? > > > > > > It's occurred to me on more than one occasion that JMeter could use a TestElement > > pool that creates objects as needed, or provides currently unused blank objects. > > It > > would require changes to code so that TestElements are returned to the pool when > > done, but it would probably be worth it. > > > > -Mike > > > > > >>Salut, > >> > >>Jordi. > >> > >> > >>--------------------------------------------------------------------- > >>To unsubscribe, e-mail: [EMAIL PROTECTED] > >>For additional commands, e-mail: [EMAIL PROTECTED] > >> > > > > > > > > > > -- > > Michael Stover > > [EMAIL PROTECTED] > > Yahoo IM: mstover_ya > > ICQ: 152975688 > > AIM: mstover777 > > > > --------------------------------------------------------------------- > > To unsubscribe, e-mail: [EMAIL PROTECTED] > > For additional commands, e-mail: [EMAIL PROTECTED] > > > > > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > -- Michael Stover [EMAIL PROTECTED] Yahoo IM: mstover_ya ICQ: 152975688 AIM: mstover777 --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
