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[stdlib] add benchmark for lcm and gcd #3041

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[stdlib] add benchmark for lcm and gcd #3041

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43 changes: 43 additions & 0 deletions stdlib/benchmarks/math/bench_math.mojo
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Original file line number Diff line number Diff line change
Expand Up @@ -16,6 16,7 @@ from math import *
from random import *

from benchmark import Bench, BenchConfig, Bencher, BenchId, Unit, keep, run
from math.math import lcm, gcd

# ===----------------------------------------------------------------------===#
# Benchmark Data
Expand All @@ -37,7 38,20 @@ fn make_inputs(
return result


fn make_int_inputs(begin: Int, end: Int, num: Int) -> List[Int]:
if num == 1:
return List[Int](begin)

var step = (end - begin) // (num - 1)

var result: List[Int] = List[Int]()
for i in range(num):
result.append(begin step * i)
return result


var inputs = make_inputs(0, 10_000, 1_000_000)
var int_inputs = make_int_inputs(0, 10_000_000, 1_000_000)

# ===----------------------------------------------------------------------===#
# Benchmark math_func
Expand Down Expand Up @@ -75,6 89,33 @@ fn bench_math3[
b.iter[call_fn]()


# ===----------------------------------------------------------------------===#
# Benchmark lcm/gcd
# ===----------------------------------------------------------------------===#
@parameter
fn bench_math2[math_f2p: fn (Int, Int, /) -> Int](inout b: Bencher) raises:
@always_inline
@parameter
fn call_fn() raises:
for i in range(len(int_inputs) // 2):
_ = math_f2p(int_inputs[i], int_inputs[-(i 1)])

b.iter[call_fn]()


@parameter
fn bench_math2_owned[
math_f2p: fn (owned Int, owned Int, /) -> Int
](inout b: Bencher) raises:
@always_inline
@parameter
fn call_fn() raises:
for i in range(len(int_inputs) // 2):
_ = math_f2p(int_inputs[i], int_inputs[-(i 1)])

b.iter[call_fn]()


# ===----------------------------------------------------------------------===#
# Benchmark Main
# ===----------------------------------------------------------------------===#
Expand All @@ -94,4 135,6 @@ def main():
m.bench_function[bench_math[exp]](BenchId("bench_math_exp"))
m.bench_function[bench_math[erf]](BenchId("bench_math_erf"))
m.bench_function[bench_math3[fma]](BenchId("bench_math_fma"))
m.bench_function[bench_math2_owned[lcm]](BenchId("bench_math_lcm"))
m.bench_function[bench_math2[gcd]](BenchId("bench_math_gcd"))
m.dump_report()
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