On Sunday, 7 December 2014 at 19:56:49 UTC, Dmitry Olshansky
wrote:
06-Dec-2014 18:33, H. S. Teoh via Digitalmars-d пишет:
On Sat, Dec 06, 2014 at 03:26:08PM +0000, Russel Winder via
Digitalmars-d wrote:
[...]
primitive are passed by value; arrays and user defined
types are
passed by reference only (killing memory usage)
Primitive types are scheduled for removal, leaving only
reference
types.
[...]
Whoa. So they're basically going to rely on JIT to convert
those boxed
Integers into hardware ints for performance?
With great success.
Sounds like I will never
consider Java for computation-heavy tasks then...
Interestingly working with JVM for the last 2 years the only
problem I've found is memory usage overhead of collections and
non-trivial objects. In my tests performance of simple numeric
code was actually better with Scala (not even plain Java) then
with D (LDC), for instance.
Got an example? I'd be interested to see a numerical-code example
where the JVM can beat the llvm/gcc backends on a real
calculation (even if it's a small one).
