On Mon, Nov 30, 2009 at 10:48 PM, Jon Harrop <[email protected]> wrote: > On Monday 30 November 2009 21:55:43 Marcelo Fukushima wrote: >> trove uses 2 arrays (of float in this case) one holding the keys and >> another holding the values, so it probably performs very well > > That's still 2x as many cache misses.
pretty much, altough as Ismael mentioned before, you could implement it better for ints and floats (and the shorter primitives) > >> i remember seeing somewhere that scala has a @specialized annotation >> that makes type parameters acts as templates. I suppose they box / >> unbox primitives in method signatures that uses the type parameters >> though > > I see. while i havent read it entirely yet, here's the first pointer i found on this feature http://lamp.epfl.ch/~dragos/files/scala-spec.pdf and it'll be in the 2.8 release > > -- > Dr Jon Harrop, Flying Frog Consultancy Ltd. > http://www.ffconsultancy.com/?e > > -- > > You received this message because you are subscribed to the Google Groups > "JVM Languages" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group at > http://groups.google.com/group/jvm-languages?hl=en. > > > -- http://mapsdev.blogspot.com/ Marcelo Takeshi Fukushima -- You received this message because you are subscribed to the Google Groups "JVM Languages" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/jvm-languages?hl=en.
