Move benchmarks into its own crate

2019-07-02 08:22:03 +02:00
parent 04a276fb39
commit f0d518231c
5 changed files with 25 additions and 12 deletions
@@ -0,0 +1,11 @@
+[package]
+name = "libm-bench"
+version = "0.1.0"
+authors = ["Gonzalo Brito Gadeschi <gonzalobg88@gmail.com>"]
+edition = "2018"
+license = "MIT OR Apache-2.0"
+
+[dependencies]
+libm = { path = "../.." }
+rand = "0.6.5"
+paste = "0.1.5"
@@ -0,0 +1,115 @@
+#![feature(test)]
+extern crate test;
+
+use rand::Rng;
+use test::Bencher;
+
+macro_rules! unary {
+  ($($func:ident),*) => ($(
+      paste::item! {
+        #[bench]
+        pub fn [<$func>](bh: &mut Bencher) {
+            let mut rng = rand::thread_rng();
+            let x = rng.gen::<f64>();
+            bh.iter(|| test::black_box(libm::[<$func>](x)))
+        }
+        #[bench]
+        pub fn [<$func f>](bh: &mut Bencher) {
+            let mut rng = rand::thread_rng();
+            let x = rng.gen::<f32>();
+            bh.iter(|| test::black_box(libm::[<$func f>](x)))
+        }
+    }
+  )*);
+}
+macro_rules! binary {
+  ($($func:ident),*) => ($(
+      paste::item! {
+        #[bench]
+        pub fn [<$func>](bh: &mut Bencher) {
+            let mut rng = rand::thread_rng();
+            let x = rng.gen::<f64>();
+            let y = rng.gen::<f64>();
+            bh.iter(|| test::black_box(libm::[<$func>](x, y)))
+        }
+        #[bench]
+        pub fn [<$func f>](bh: &mut Bencher) {
+            let mut rng = rand::thread_rng();
+            let x = rng.gen::<f32>();
+            let y = rng.gen::<f32>();
+            bh.iter(|| test::black_box(libm::[<$func f>](x, y)))
+        }
+    }
+  )*);
+  ($($func:ident);*) => ($(
+      paste::item! {
+        #[bench]
+        pub fn [<$func>](bh: &mut Bencher) {
+            let mut rng = rand::thread_rng();
+            let x = rng.gen::<f64>();
+            let n = rng.gen::<i32>();
+            bh.iter(|| test::black_box(libm::[<$func>](x, n)))
+        }
+        #[bench]
+        pub fn [<$func f>](bh: &mut Bencher) {
+            let mut rng = rand::thread_rng();
+            let x = rng.gen::<f32>();
+            let n = rng.gen::<i32>();
+            bh.iter(|| test::black_box(libm::[<$func f>](x, n)))
+        }
+    }
+  )*);
+}
+macro_rules! trinary {
+  ($($func:ident),*) => ($(
+      paste::item! {
+        #[bench]
+        pub fn [<$func>](bh: &mut Bencher) {
+            let mut rng = rand::thread_rng();
+            let x = rng.gen::<f64>();
+            let y = rng.gen::<f64>();
+            let z = rng.gen::<f64>();
+            bh.iter(|| test::black_box(libm::[<$func>](x, y, z)))
+        }
+        #[bench]
+        pub fn [<$func f>](bh: &mut Bencher) {
+            let mut rng = rand::thread_rng();
+            let x = rng.gen::<f32>();
+            let y = rng.gen::<f32>();
+            let z = rng.gen::<f32>();
+            bh.iter(|| test::black_box(libm::[<$func f>](x, y, z)))
+        }
+    }
+  )*);
+}
+macro_rules! bessel {
+  ($($func:ident),*) => ($(
+      paste::item! {
+        #[bench]
+        pub fn [<$func>](bh: &mut Bencher) {
+            let mut rng = rand::thread_rng();
+            let mut n = rng.gen::<i32>();
+            n &= 0xffff;
+            let x = rng.gen::<f64>();
+            bh.iter(|| test::black_box(libm::[<$func>](n, x)))
+        }
+        #[bench]
+        pub fn [<$func f>](bh: &mut Bencher) {
+            let mut rng = rand::thread_rng();
+            let mut n = rng.gen::<i32>();
+            n &= 0xffff;
+            let x = rng.gen::<f32>();
+            bh.iter(|| test::black_box(libm::[<$func f>](n, x)))
+        }
+    }
+  )*);
+}
+
+unary!(
+    acos, acosh, asin, atan, cbrt, ceil, cos, cosh, erf, exp, exp2, exp10, expm1, fabs, floor, j0,
+    j1, lgamma, log, log1p, log2, log10, round, sin, sinh, sqrt, tan, tanh, tgamma, trunc, y0, y1
+);
+binary!(atan2, copysign, fdim, fmax, fmin, fmod, hypot, pow);
+trinary!(fma);
+bessel!(jn, yn);
+binary!(ldexp; scalbn);