diff --git a/tools/test/malloc/Makefile b/tools/test/malloc/Makefile
index 3cf3ee035a2d..0db597724b58 100644
--- a/tools/test/malloc/Makefile
+++ b/tools/test/malloc/Makefile
@@ -1,23 +1,14 @@
 PROG=	malloc
+SRCS=	main.c malloc.c
+.PATH:	${.CURDIR}/../../../lib/libc/stdlib
+
 NOMAN=	sorry
 
-libcmalloc:
-	make clean 
-	make "CFLAGS=-O2"
-	mv malloc libcmalloc
+test:	malloc
 	@echo
-	@csh -x -c "time ./libcmalloc      500000  2000 8192"
-	@csh -x -c "time ./libcmalloc    50000000  2000 8192"
-	@csh -x -c "time ./libcmalloc      500000 14000 8192"
-	@csh -x -c "time ./libcmalloc    20000000 20000 2048"
-
-gnumalloc:
-	make clean 
-	make "CFLAGS=-lgnumalloc -O2"
-	mv malloc gnumalloc
-	@csh -x -c "time ./gnumalloc   500000  2000 8192"
-	@csh -x -c "time ./gnumalloc 50000000  2000 8192"
-	@csh -x -c "time ./gnumalloc   500000 14000 8192"
-	@csh -x -c "time ./gnumalloc 20000000 20000 2048"
+	@csh -x -c "time ./malloc      500000  2000 8192"
+	@csh -x -c "time ./malloc    50000000  2000 8192"
+	@csh -x -c "time ./malloc      500000 14000 8192"
+	@csh -x -c "time ./malloc    20000000 20000 2048"
 
 .include <bsd.prog.mk>
diff --git a/tools/test/malloc/malloc.c b/tools/test/malloc/main.c
similarity index 72%
rename from tools/test/malloc/malloc.c
rename to tools/test/malloc/main.c
index a865b9edcf4c..4d1d380df906 100644
--- a/tools/test/malloc/malloc.c
+++ b/tools/test/malloc/main.c
@@ -19,16 +19,22 @@ main(int argc, char **argv)
     printf("BRK(0)=%x ",sbrk(0));
     foo = malloc (sizeof *foo * NBUCKETS);
     memset(foo,0,sizeof *foo * NBUCKETS);
-    for (i = 0 ; i < NOPS ; i++) {
-	j = rand() % NBUCKETS;
-	if (foo[j]) {
+    for (i = 1; i <= 4096; i+=i) {
+        for (j = 0 ; j < 40960/i && j < NBUCKETS; j++) {
+	    foo[j] = malloc(i);
+        }
+        for (j = 0 ; j < 40960/i && j < NBUCKETS; j++) {
 	    free(foo[j]);
 	    foo[j] = 0;
-	} else {
-	    k = rand() % NSIZE;
-	    foo[j] = malloc(k);
+        }
+    }
+
+    for (i = 0 ; i < NOPS ; i++) {
+	j = random() % NBUCKETS;
+        k = random() % NSIZE;
+	foo[j] = realloc(foo[j], k & 1 ? 0 : k);
+	if (foo[j])
 	    foo[j][0] = 1;
-	}
     }
     printf("BRK(1)=%x ",sbrk(0));
     for (j = 0 ; j < NBUCKETS ; j++) {