diff --git a/pb_utils/pb_submitter/.gitignore b/pb_utils/pb_submitter/.gitignore
index 6d5984422b4055f069478d08dc77eb1d5405b1de..95e7a412722c9bf1d8c3bf7da408e0ac278b3c27 100644
--- a/pb_utils/pb_submitter/.gitignore
+++ b/pb_utils/pb_submitter/.gitignore
@@ -1,2 +1,4 @@
 pb_submitter
 test_prog
+task_long
+sysc_long
diff --git a/pb_utils/pb_submitter/example_plan b/pb_utils/pb_submitter/example_plan
index 93cbfb92e6c06a5dd76f0523e1e169c14f90e7c3..59f67b1330062a02098499cc71bd680fbc59e5f6 100644
--- a/pb_utils/pb_submitter/example_plan
+++ b/pb_utils/pb_submitter/example_plan
@@ -1,100 +1,100 @@
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
-560000
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
+400800
diff --git a/pb_utils/pb_submitter/sysc_long b/pb_utils/pb_submitter/sysc_long
deleted file mode 100755
index 841ec848ca83a0816237c4ca39b0c7ca19818fd8..0000000000000000000000000000000000000000
Binary files a/pb_utils/pb_submitter/sysc_long and /dev/null differ
diff --git a/pb_utils/pb_submitter/syscall_long_test.c b/pb_utils/pb_submitter/syscall_long_test.c
index 820fec2b2128a698b050740889f27e2226b30519..8e0f933c028e24f6bea31167b00510e6314e55a3 100644
--- a/pb_utils/pb_submitter/syscall_long_test.c
+++ b/pb_utils/pb_submitter/syscall_long_test.c
@@ -3,18 +3,25 @@
 
 int main(void)
 {
+    int i;
+    int j;
+
     // Make sure program is not finished before pb scheduler takes control
     sleep(1);
-    int b = 0;
-    for (;b < 100; b++) {
-      int a = 0;
-      int c = 0;
-      for (;a < 100000; a++){c = c + a;}
-      // check if program runs
-      printf("loop run: %d, c = %d \n", b, c);
-      // syscall to switch tasks
-      usleep(10000);
+
+    // this outer for loop is around 8 instructions per iteration
+    for (i = 0; i < 100; i++) {
+        // this for loop results in 4 cpu instructions per iteration
+        // nop, add, compare, jmp
+        for (j = 0; j < 100000; j++){
+            __asm__ volatile("nop");
+        }
+
+        // check if program runs && syscall to switch tasks
+        printf("run #%d completed\n", i);
+        usleep(10000);
     }
+
+    printf("main end\n");
     return 0;
 }
-
diff --git a/pb_utils/pb_submitter/task_long b/pb_utils/pb_submitter/task_long
deleted file mode 100755
index 6be357d1ed5369230eda8442a249b09a3e4e1f37..0000000000000000000000000000000000000000
Binary files a/pb_utils/pb_submitter/task_long and /dev/null differ
diff --git a/pb_utils/pb_submitter/task_long_test.c b/pb_utils/pb_submitter/task_long_test.c
index 0a96cbd83de4fb64bd20ae37256f8f78571655e8..009357c4e36044d1f4347679b0dcb594dcd4bb23 100644
--- a/pb_utils/pb_submitter/task_long_test.c
+++ b/pb_utils/pb_submitter/task_long_test.c
@@ -3,18 +3,25 @@
 
 int main(void)
 {
+    int i;
+    int j;
+
     // Make sure program is not finished before pb scheduler takes control
     sleep(1);
-    int b = 0;
-    for (;b < 100; b++) {
-      int a = 0;
-      int c = 0;
-      for (;a < 10000000; a++){c = c + a;}
-      // check if program runs
-      printf("loop run: %d, c = %d \n", b, c);
-      // syscall to switch tasks
-      usleep(1);
+
+    // this outer for loop is around 8 instructions per iteration
+    for (i = 0; i < 100; i++) {
+        // this for loop results in 4 cpu instructions per iteration
+        // nop, add, compare, jmp
+        for (j = 0; j < 10000000; j++){
+            __asm__ volatile("nop");
+        }
+
+        // check if program runs && syscall to switch tasks
+        printf("run #%d completed\n", i);
+        usleep(1);
     }
+
+    printf("main end\n");
     return 0;
 }
-
diff --git a/pb_utils/pb_submitter/test_prog.c b/pb_utils/pb_submitter/test_prog.c
index 11c4bcb587b52f9479cc54fdf99113755e6c6cb8..98e6bece6dc9aa24c774aa8af1145379c5f40ec0 100644
--- a/pb_utils/pb_submitter/test_prog.c
+++ b/pb_utils/pb_submitter/test_prog.c
@@ -3,18 +3,25 @@
 
 int main(void)
 {
+    int i;
+    int j;
+
     // Make sure program is not finished before pb scheduler takes control
     sleep(1);
-    int b = 0;
-    for (;b < 100; b++) {
-      int a = 0;
-      int c = 0;
-      for (;a < 100000; a++){c = c + a;}
-      // check if program runs
-      printf("loop run: %d, c = %d \n", b, c);
-      // syscall to switch tasks
-      usleep(1);
+
+    // this outer for loop is around 8 instructions per iteration
+    for (i = 0; i < 100; i++) {
+        // this for loop results in 4 cpu instructions per iteration
+        // nop, add, compare, jmp
+        for (j = 0; j < 100000; j++){
+            __asm__ volatile("nop");
+        }
+
+        // check if program runs && syscall to switch tasks
+        printf("run #%d completed\n", i);
+        usleep(1);
     }
+
+    printf("main end\n");
     return 0;
 }
-