benchmarking for encoding and decoding

Makefile.am

 ACLOCAL_AMFLAGS = -I m4
 SUBDIRS = src tests
-EXTRA_DIST = doc/license.txt doc/logo.svg
\ No newline at end of file
+EXTRA_DIST = doc/license.txt doc/logo.svg
+bench: all
+	cd tests && $(MAKE) $(AM_MAKEFLAGS) bench
+benc: all
+	cd tests && $(MAKE) $(AM_MAKEFLAGS) benc
+bdec: all
+	cd tests && $(MAKE) $(AM_MAKEFLAGS) bdec
+.PHONY: bench benc bdec

tests/Makefile.am

@@ -14,4 +14,10 @@ check_long_fs_SOURCES = check_long_fs.c check_aec.h \
 $(top_builddir)/src/libaec.h
 
 LDADD = libcheck_aec.la $(top_builddir)/src/libaec.la
-EXTRA_DIST = sampledata.sh
+EXTRA_DIST = sampledata.sh benc.sh bdec.sh
+bench: benc bdec
+benc:
+	./benc.sh
+bdec:
+	./bdec.sh
+.PHONY: bench benc bdec

tests/bdec.sh

+#!/bin/sh
+
+AEC=../src/aec
+
+if [ ! -f bench.rz ]; then
+    echo "No encoded file found. Encoding now..."
+    ./benc.sh
+fi
+rm -f dec.dat
+bsize=$(stat -c "%s" bench.dat)
+utime=$(
+    (
+        /usr/bin/time -f "%U" $AEC -d -n16 -j64 -r256 -m -c \
+            bench.rz > dec.dat
+    ) 2>&1
+)
+perf=$(echo "$bsize/1048576/$utime" | bc)
+echo "*** Decoding with $perf MiB/s user time ***"
+cmp bench.dat dec.dat

tests/benc.sh

+#!/bin/sh
+
+AEC=../src/aec
+
+if [ ! -f  typical.dat ]; then
+    wget https://www.dkrz.de/redmine/attachments/download/441/typical.dat
+fi
+if [ ! -f  bench.dat ]; then
+    for i in $(seq 0 499);
+    do
+        cat typical.dat >> bench.dat
+    done
+fi
+rm -f bench.rz
+utime=$(
+    (
+        /usr/bin/time -f "%U" $AEC -n16 -j64 -r256 -m -c bench.dat > bench.rz
+    ) 2>&1
+)
+bsize=$(stat -c "%s" bench.dat)
+perf=$(echo "$bsize/1048576/$utime" | bc)
+echo "*** Encoding with $perf MiB/s user time ***"