From d850c3b7f47e58556c160f9d03ea20aa52452020 Mon Sep 17 00:00:00 2001
From: rodri <rgl@antares-labs.eu>
Date: Fri, 24 Nov 2023 15:39:06 +0000
Subject: add more avx instructions and a bench9 benchmark file.

---
 bench/main.c | 134 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 134 insertions(+)
 create mode 100644 bench/main.c

(limited to 'bench/main.c')

diff --git a/bench/main.c b/bench/main.c
new file mode 100644
index 0000000..9d00719
--- /dev/null
+++ b/bench/main.c
@@ -0,0 +1,134 @@
+#include <u.h>
+#include <libc.h>
+#include <thread.h>
+#include <geometry.h>
+#include "b.h"
+
+double dppd(Point2, Point2);
+double dppda(Point2, Point2);
+double dppd3(Point3, Point3);
+double dppd3a(Point3, Point3);
+Point3 xvec3(Point3, Point3);
+
+static void
+bdotvec2(int fd)
+{
+	Bgr g;
+	B *b0, *b1, *b2;
+	Point2 a, b;
+	int i;
+
+	benchinitgr(&g, "2d dot product");
+	b0 = benchadd(&g, "dotvec2");
+	b1 = benchadd(&g, "dotvec2_simd");
+	b2 = benchadd(&g, "dotvec2_avx");
+
+	while(b0->n > 0 || b1->n > 0){
+		a = Vec2(truerand()*frand(), truerand()*frand());
+		b = Vec2(truerand()*frand(), truerand()*frand());
+
+		benchin(b0);
+		for(i = 0; i < 1e6; i++)
+			dotvec2(a, b);
+		benchout(b0);
+
+		benchin(b1);
+		for(i = 0; i < 1e6; i++)
+			dppd(a, b);
+		benchout(b1);
+
+		benchin(b2);
+		for(i = 0; i < 1e6; i++)
+			dppda(a, b);
+		benchout(b2);
+	}
+
+	benchprintgr(&g, fd);
+	benchfreegr(&g);
+}
+
+static void
+bdotvec3(int fd)
+{
+	Bgr g;
+	B *b0, *b1, *b2;
+	Point3 a, b;
+	int i;
+
+	benchinitgr(&g, "3d dot product");
+	b0 = benchadd(&g, "dotvec3");
+	b1 = benchadd(&g, "dotvec3_simd");
+	b2 = benchadd(&g, "dotvec3_avx");
+
+	while(b0->n > 0 || b1->n > 0){
+		a = Vec3(truerand()*frand(), truerand()*frand(), truerand()*frand());
+		b = Vec3(truerand()*frand(), truerand()*frand(), truerand()*frand());
+
+		benchin(b0);
+		for(i = 0; i < 1e6; i++)
+			dotvec3(a, b);
+		benchout(b0);
+
+		benchin(b1);
+		for(i = 0; i < 1e6; i++)
+			dppd3(a, b);
+		benchout(b1);
+
+		benchin(b2);
+		for(i = 0; i < 1e6; i++)
+			dppd3a(a, b);
+		benchout(b2);
+	}
+
+	benchprintgr(&g, fd);
+	benchfreegr(&g);
+}
+
+static void
+bcrossvec3(int fd)
+{
+	Bgr g;
+	B *b0, *b1;
+	Point3 a, b;
+	int i;
+
+	benchinitgr(&g, "3d cross product");
+	b0 = benchadd(&g, "crossvec3");
+	b1 = benchadd(&g, "crossvec3_simd");
+
+	while(b0->n > 0 || b1->n > 0){
+		a = Vec3(truerand()*frand(), truerand()*frand(), truerand()*frand());
+		b = Vec3(truerand()*frand(), truerand()*frand(), truerand()*frand());
+
+		benchin(b0);
+		for(i = 0; i < 1e6; i++)
+			crossvec3(a, b);
+		benchout(b0);
+
+		benchin(b1);
+		for(i = 0; i < 1e6; i++)
+			xvec3(a, b);
+		benchout(b1);
+	}
+
+	benchprintgr(&g, fd);
+	benchfreegr(&g);
+}
+
+void
+threadmain(int argc, char **argv)
+{
+	ARGBEGIN{
+	}ARGEND
+
+	if(benchwire(0) != 0)
+		fprint(2, "failed to wire: %r\n");
+
+	bdotvec2(1);
+	bseparator(1);
+	bdotvec3(1);
+	bseparator(1);
+	bcrossvec3(1);
+
+	threadexitsall(nil);
+}
-- 
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