Type sizes:
char      : 1
short     : 2
int       : 4
long      : 4
long long : 8
bool      : 1
void*     : 4

Operation timings:
Note: timings for some operations are very data dependent
nop           0.01 usec/call
cli/sei       0.75 usec/call
micros()      1.06 usec/call
millis()      1.74 usec/call
fadd          0.05 usec/call
fsub          0.05 usec/call
fmul          0.05 usec/call
fdiv          0.14 usec/call
dadd          0.64 usec/call
dsub          0.60 usec/call
dmul          0.32 usec/call
ddiv          0.41 usec/call
sin()        19.55 usec/call
cos()        18.01 usec/call
tan()        36.85 usec/call
acos()       34.71 usec/call
asin()       38.37 usec/call
atan2()      29.86 usec/call
sqrt()        5.55 usec/call
iadd8         0.04 usec/call
isub8         0.05 usec/call
imul8         0.05 usec/call
idiv8         0.07 usec/call
iadd16        0.05 usec/call
isub16        0.05 usec/call
imul16        0.05 usec/call
idiv16        0.06 usec/call
iadd32        0.04 usec/call
isub32        0.04 usec/call
imul32        0.04 usec/call
idiv32        0.07 usec/call
iadd64        0.07 usec/call
isub64        0.07 usec/call
imul64        0.12 usec/call
idiv64        0.88 usec/call
memcpy128     0.02 usec/call
memset128     1.48 usec/call
delay(1)   1001.76 usec/call