Add benchmark udb2.

bench/udb2/Makefile

@@ -0,0 +1,33 @@
+CC=		gcc
+CXX=		g++
+CFLAGS=		-g -Wall -O2 -fomit-frame-pointer -march=native -lm -include stddef.h
+CXXFLAGS=	$(CFLAGS)
+LDFLAGS=	
+OBJS=		
+LIBS=		
+
+all: run
+
+udb2:
+	git clone https://github.com/attractivechaos/udb2.git
+
+build: udb2
+	mkdir -p udb2/mlib
+	cp test-mlib.c udb2/mlib/test.c
+	cp Makefile-mlib udb2/mlib/Makefile
+	touch build
+
+all-recur: build
+	cd udb2/stb && make CC="gcc -lm"
+	cd udb2 && for dir in `ls | egrep -v '^(Makefile|common.c|_)'`; do cd $$dir && make && cd -; done
+
+run: all-recur
+	@cd udb2;						\
+	echo ;	echo RUNNING BENCH ; echo ;			\
+	for i in `find . -name 'run-test'` ; do			\
+	    echo ; echo `dirname $$i|sed -e 's+./++g'`;		\
+	    $$i ;						\
+	done
+
+clean:
+	rm -rf udb2 build *~

bench/udb2/Makefile-mlib

@@ -0,0 +1,8 @@
+all:run-test
+
+run-test:test.c ../common.c
+	$(CC) -std=gnu99 -O2 -Wall -I../../../.. $< -o $@
+
+clean:
+	rm -f run-test* *~
+	rm -rf mlib

bench/udb2/test-mlib.c

@@ -0,0 +1,46 @@
+/* Makefile:
+
+all:run-test
+
+run-test:test.c ../common.c mlib
+	$(CC) -std=gnu99 -O2 -Wall -Imlib $< -o $@
+
+mlib:
+	git clone https://github.com/P-p-H-d/mlib.git
+
+clean:
+	rm -f run-test* *~
+	rm -rf mlib
+*/
+
+#include "../common.c"
+#include "m-dict.h"
+
+static inline bool oor_equal_p(unsigned int k, unsigned char n)
+{
+  return k == (unsigned int)n;
+}
+static inline void oor_set(unsigned int *k, unsigned char n)
+{
+  *k = (unsigned int)n;
+}
+
+DICT_OA_DEF2(dict_oa_uint,
+	     unsigned int, M_OPEXTEND(M_DEFAULT_OPLIST, OOR_EQUAL(oor_equal_p), OOR_SET(oor_set M_IPTR)),
+	     unsigned int, M_DEFAULT_OPLIST)
+
+void test_int(uint32_t n, uint32_t x0)
+{
+  uint32_t i, x, z = 0;
+  dict_oa_uint_t h;
+  dict_oa_uint_init(h);
+  for (i = 0, x = x0; i < n; ++i) {
+    x = hash32(x);
+    unsigned int key = get_key(n, x);
+    unsigned int *ptr = dict_oa_uint_get(h, key);
+    if (ptr) (*ptr)++;
+    else dict_oa_uint_set_at(h, key, 1);
+  }
+  fprintf(stderr, "# unique keys: %d; checksum: %u\n", (int) dict_oa_uint_size(h), z);
+  dict_oa_uint_clear(h);
+}