diff --git a/mps/test/function/12.c b/mps/test/function/12.c
index f1c15731a04..d9f2de7fedb 100644
--- a/mps/test/function/12.c
+++ b/mps/test/function/12.c
@@ -182,7 +182,7 @@ static void test(void)
     commentif(VERBOSE, "%i begin commit", i);
     ap[i]->init = ap[i]->alloc;
    case 3:
-    commentif(VERBOSE, "% end commit", i);
+    commentif(VERBOSE, "%i end commit", i);
     (void) (ap[i]->limit != 0 || mps_ap_trip(ap[i], p[i], s[i]));
   }
   mps_ap_destroy(ap[i]);
diff --git a/mps/test/function/12p.c b/mps/test/function/12p.c
index c5987388e45..e5556c75ecb 100644
--- a/mps/test/function/12p.c
+++ b/mps/test/function/12p.c
@@ -188,7 +188,7 @@ cells = allocone(ap[0], NCELLS);
     commentif(VERBOSE, "%i begin commit", i);
     ap[i]->init = ap[i]->alloc;
    case 3:
-    commentif(VERBOSE, "% end commit", i);
+    commentif(VERBOSE, "%i end commit", i);
     (void) (ap[i]->limit != 0 || mps_ap_trip(ap[i], p[i], s[i]));
   }
   mps_ap_destroy(ap[i]);
diff --git a/mps/test/function/13.c b/mps/test/function/13.c
index 257e2a4978a..9a629ea1792 100644
--- a/mps/test/function/13.c
+++ b/mps/test/function/13.c
@@ -184,7 +184,7 @@ cells = allocone(ap[0], NCELLS);
     commentif(VERBOSE, "%i begin commit", i);
     ap[i]->init = ap[i]->alloc;
    case 3:
-    commentif(VERBOSE, "% end commit", i);
+    commentif(VERBOSE, "%i end commit", i);
     (void) (ap[i]->limit != 0 || mps_ap_trip(ap[i], p[i], s[i]));
   }
   mps_ap_destroy(ap[i]);
diff --git a/mps/test/function/206.c b/mps/test/function/206.c
index a5bc71ff4b3..64d5517944d 100644
--- a/mps/test/function/206.c
+++ b/mps/test/function/206.c
@@ -4,7 +4,7 @@ TEST_HEADER
  summary = new MVFF allocation test
  language = c
  link = testlib.o
- parameters = QUEUES=100 ITERATIONS=10000
+ parameters = QUEUES=100 ITERATIONS=1000
 END_HEADER
 */
 
@@ -75,7 +75,7 @@ static void dt(int kind,
  die(
   mps_pool_create(&pool, arena, mps_class_mvff(),
                   extendBy, avgSize, align, slotHigh, arenaHigh, firstFit),
-  "create EPDR pool");
+  "create MVFF pool");
 
  for(hd=0; hd<number; hd++)
  {
diff --git a/mps/test/function/215.c b/mps/test/function/215.c
index a64dafdf559..ab3862f9a5f 100644
--- a/mps/test/function/215.c
+++ b/mps/test/function/215.c
@@ -4,7 +4,7 @@ TEST_HEADER
  summary = test of ramp allocation
  language = c
  link = testlib.o rankfmt.o
- parameters = ITERATIONS=100000
+ parameters = ITERATIONS=10000
 OUTPUT_SPEC
  result = pass
 END_HEADER
diff --git a/mps/test/function/227.c b/mps/test/function/227.c
index b86a958ed2e..d149bbc474c 100644
--- a/mps/test/function/227.c
+++ b/mps/test/function/227.c
@@ -4,7 +4,7 @@ TEST_HEADER
  summary = allocate in 2 arenas
  language = c
  link = testlib.o rankfmt.o
- parameters = ITERATIONS=100000
+ parameters = ITERATIONS=10000
 OUTPUT_SPEC
  result = pass
 END_HEADER
@@ -21,8 +21,8 @@ END_HEADER
 
 #define ARENALIMIT (100)
 
-#define TABSIZE (ITERATIONS * 5 / 10)
-#define ENTERRAMP (ITERATIONS * 3 / 100)
+#define TABSIZE (ITERATIONS / 2)
+#define ENTERRAMP (ITERATIONS / 10)
 #define LEAVERAMP (ITERATIONS / 10)
 
 #define BACKSIZE (32)