View source code
Display the source code in std/datetime/stopwatch.d from which this
page was generated on github.
Report a bug
If you spot a problem with this page, click here to create a
Bugzilla issue.
Improve this page
Quickly fork, edit online, and submit a pull request for this page.
Requires a signed-in GitHub account. This works well for small changes.
If you'd like to make larger changes you may want to consider using
local clone.
Function std.datetime.stopwatch.benchmark
Benchmarks code for speed assessment and comparison.
Parameters
Name | Description |
---|---|
fun | aliases of callable objects (e.g. function names). Each callable object should take no arguments. |
n | The number of times each function is to be executed. |
Returns
The amount of time (as a Duration
) that it took to call
each function n
times. The first value is the length of time that
it took to call fun[0]
n
times. The second value is the length
of time it took to call fun[1]
n
times. Etc.
Example
import std .conv : to;
int a;
void f0() {}
void f1() { auto b = a; }
void f2() { auto b = to!string(a); }
auto r = benchmark!(f0, f1, f2)(10_000);
Duration f0Result = r[0]; // time f0 took to run 10,000 times
Duration f1Result = r[1]; // time f1 took to run 10,000 times
Duration f2Result = r[2]; // time f2 took to run 10,000 times
Authors
Jonathan M Davis and Kato Shoichi
License
Copyright © 1999-2022 by the D Language Foundation | Page generated by ddox.