While pondering David's performance questions (that I see he has
solved), I did a test of how quickly Rev deals with long strings.
Those can be slow in some cases, Director in particular, and so I
tested Rev against Director with Lingo, Director with Javascript, and
Flash with Actionscript 3. Here's the routine for both Rev and for
Director:
on filltext
put the milliseconds into ms
put "" into t
repeat with a = 1 to 30000
put "aaaaaaaaaaaaaaaaaaaaaaa" after t
end repeat
put the milliseconds - ms && the number of chars in t
end filltext
Apart from anything else it shows how Talk like Lingo can be! The
results were somewhat shocking though, Director (admittedly running
under Rosetta) took over 18 seconds as Lingo, and over 44 seconds as
Javascript.
Rev takes 10 milliseconds to do the same thing. Flash, with AS3, and
this routine:
filltext();
function filltext() {
var d1:Date = new Date();
var ms:int = d1.getTime();
var t:String = "";
for (var i = 0; i<30000; i++) {
t += "aaaaaaaaaaaaaaaaaaaaaaa";
}
var d2:Date = new Date();
var nms:int = d2.getTime()
trace(nms - ms, t.length);
}
takes 5 milliseconds. I increased the loops to 300,000 to see more
exactly the timing, and Rev became 263 milliseconds, and AS3 was 70.
For completeness I tried AS2 as well, and that was 310 milliseconds
(for the 300,000 loop).
So, although Rev isn't anywhere near as fast as AS3 at handling text
strings, it is significantly faster than AS2, and a lot faster than
Director running under Rosetta. I realized I had a way to test it not
under Rosetta (can't tell you how, I'd have to kill you!), and the
300,000 loop as Lingo came out at 436 milliseconds, making Rev almost
twice the speed of Director 11, when it comes out.
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