On Friday, 29 May 2015 at 07:51:31 UTC, thedeemon wrote:
On Thursday, 28 May 2015 at 21:23:11 UTC, Momo wrote:
Ah, actually it's more complicated, as it depends on inlining a
lot.
Yes. And real functions are more complex and inlining is no
reliable option.
Indeed, without -O and -inline I was able to get by_ref to be
slightly slower than by_copy for struct of 4 ints. But when
inlining turns on, the numbers change in different directions.
And for 5 ints inlining influence is quite different:
4 ints: 5 ints:
-release
by ref: 53 by ref: 53
by copy: 57 by copy: 137
by move: 54 by move: 137
-release -O
by ref: 38 by ref: 34
by copy: 54 by copy: 137
by move: 49 by move: 137
-release -O -inline
by ref: 15 by ref: 20
by copy: 72 by copy: 91
by move: 72 by move: 91
So as you can see, it is 2-3 times slower. Is there an
alternative?
