From cdaa1e0196b1025b526bea061cf6217ff280bb99 Mon Sep 17 00:00:00 2001
From: Dorian Zedler <dorian@itsblue.de>
Date: Wed, 20 Jul 2022 11:21:13 +0200
Subject: [PATCH] Feat: Benchmarks

---
 Implementierung/.gitignore     |  2 +-
 Implementierung/Makefile       | 38 +++++++++++++++++++++++++++++++---
 Implementierung/benchmarks.csv |  1 +
 3 files changed, 37 insertions(+), 4 deletions(-)
 create mode 100644 Implementierung/benchmarks.csv

diff --git a/Implementierung/.gitignore b/Implementierung/.gitignore
index d6dce6b..37e27d3 100644
--- a/Implementierung/.gitignore
+++ b/Implementierung/.gitignore
@@ -1,3 +1,3 @@
 build
 md2
-testfile*
\ No newline at end of file
+t
\ No newline at end of file
diff --git a/Implementierung/Makefile b/Implementierung/Makefile
index 843d95b..7be2eba 100644
--- a/Implementierung/Makefile
+++ b/Implementierung/Makefile
@@ -5,6 +5,8 @@ OBJ = ${subst src,build,${SRC:.c=.o}}
 CC = gcc
 CFLAGS = -Ilib -ggdb -std=c11 -g -Wall -Wextra -no-pie -O3
 LDFLAGS = 
+TESTFILES = t/1 t/10 t/100 #t/1000 t/2000 t/5000 t/10000
+TESTFILES_SIZES = ${subst t/,,${TESTFILES}}
 
 all: md2
 
@@ -18,9 +20,7 @@ help:
 	@echo - all: build everything
 	@echo - clean: clean distfiles
 	@echo - help: show this help
-
-build:
-	mkdir build
+	@echo - benchmarks: run benchmarks (only works on linux!)
 
 build/%.o: src/%.c
 	@mkdir -p build/md2_impls
@@ -29,4 +29,36 @@ build/%.o: src/%.c
 md2: ${OBJ} 
 	${CC} -o $@ $(OBJ) ${LDFLAGS}
 
+t/%:
+	@echo
+	@echo "=== Generating ${subst t/,,$@}MB of random data... ==="
+	dd if=/dev/random of=$@ bs=1M count=${subst t/,,$@} status=progress
+	@echo "===                done                     ==="
+	@echo
+
+benchmarks.csv: ${TESTFILES}
+	@echo "" > $@
+	@for i in 0 1 2 3; do \
+		echo ;\
+		echo "=== Testing implementation $$i ===";\
+		for t in $(TESTFILES_SIZES); do \
+			echo -n "- with $${t}MB ... "; \
+			if ! r=$$(./md2 t/$${t} -B1 -V1); then \
+				echo; \
+				echo "ERROR!"; \
+				exit 1; \
+			fi; \
+			r=$$(echo $$r | grep "cycles took" | sed 's/ seconds//g' | sed 's/took /\n/g' | tail -1) \
+			echo $$?; \
+			echo "$${r}s"; \
+			echo "$${i};$${t};$${r}" >> $@; \
+		done; \
+		echo "===           done           ===";\
+		echo;\
+    done
+	
+
+tests: md2 
+
+
 .PHONY: all clean help
\ No newline at end of file
diff --git a/Implementierung/benchmarks.csv b/Implementierung/benchmarks.csv
new file mode 100644
index 0000000..8b13789
--- /dev/null
+++ b/Implementierung/benchmarks.csv
@@ -0,0 +1 @@
+