But aggregation needs to lock so not a real solution. Lock is fine on real cases but not in simple/light ones. ThreadLocal leaks...so a trade off should be found Le 4 nov. 2013 18:42, "Phil Steitz" <phil.ste...@gmail.com> a écrit :
> On 11/4/13 8:49 AM, Romain Manni-Bucau wrote: > > Hi, > > > > ATM sirona (a java monitoring library in incubator) relies a lot on > > Summary stats object from [math3] but it needed a lock to ensure > > consistency. I know there is a synchronized version but this one > > scales less then the locked one. > > > > My question is quite simple then: will [math] add an implementation > > with thread safety guarantee and good performances? I think for > > instance to the LongAdder of Doug Lea which could be used as a good > > base. > > The short answer is yes, patches welcome. > > Ted makes a good point, though; and there is already some support > for aggregation in the stats classes in [math] (i.e., you can > aggregate the results of per-thread stats by using, e.g. > AggregateSummaryStatistics#aggregate). See MATH-1016 re extending > this to more stats. > > Phil > > > > > Romain Manni-Bucau > > Twitter: @rmannibucau > > Blog: http://rmannibucau.wordpress.com/ > > LinkedIn: http://fr.linkedin.com/in/rmannibucau > > Github: https://github.com/rmannibucau > > > > --------------------------------------------------------------------- > > To unsubscribe, e-mail: dev-unsubscr...@commons.apache.org > > For additional commands, e-mail: dev-h...@commons.apache.org > > > > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: dev-unsubscr...@commons.apache.org > For additional commands, e-mail: dev-h...@commons.apache.org > >
