Script Scope Performance

Hi. I've been getting some minor performance discrepancies with different scripts so I've been experimenting to try and minimize this. What I've found for value types is this:

-Using this as a base for comparison:

float x = 0;
float y = 0;
float xx = 1;
float yy = 2;
for(int i=0;i<100000;++i)
{
x = xx; //simple assignment test.. this is actually pretty fast for built in value types!
y = yy;
xx = x;
yy = y;
}


3x slower

Vector2 a;
Vector2 b;
for(int i=0;i<100000;++i)
{
a.x = b.x;
b.x = a.x;
a.y = b.y;
b.y = a.y;
}




This is still very fast. Only 2.1 times slower than the base test:

Vector2 a;
Vector2 b;
for(int i=0;i<100000;++i)
{
a = b; //evaluates to a function call.
b = a;
}



8x slower ???

class test
{
Vector2 a;
Vector2 b;
void run()
{
for(int i=0;i<100000;++i)
{
a = b; // a, b are now class members, same speed as if declared global
b = a;
}
}
}



also 8x slower

class V
{
Vector2 v;
}

V a;
V b;
for(int i=0;i<100000;++i)
{
a.v = b.v;
b.v = a.v;
}

Tested these in release using windows performance timers.

Is this expected in terms of speed? -Also wondering if there's any tricks to get class members to be better 'cached' when executing a function within that class? (I use a lot of classes)

Thanks.