more verbosity in cache test

src/cache_test.c

@@ -17,7 +17,7 @@ void measure_multiple_accesses(void (*addr)(void), size_t num_accesses, size_t*
     }
 }
 
-size_t find_crossover_point(size_t* hits, size_t* misses, size_t num_accesses) 
+void find_crossover_point(size_t* hits, size_t* misses, size_t num_accesses)
 {
     size_t hit_sum = 0, miss_sum = 0;
     
@@ -30,15 +30,19 @@ size_t find_crossover_point(size_t* hits, size_t* misses, size_t num_accesses)
     size_t avg_hit = hit_sum / num_accesses;
     size_t avg_miss = miss_sum / num_accesses;
 
-    return (avg_hit + avg_miss) / 2;  // Midpoint as threshold
+    printf("Average hit time: %zu\n", avg_hit);
+    printf("Average miss time: %zu\n", avg_miss);
+
+    size_t threshold = (avg_hit + avg_miss) / 2;  // Midpoint as threshold
+    printf("Midpoint: %zu\n", threshold);
 }
 
-int main() 
+int main()
 {
     size_t* hits = malloc(NUM_ACCESSES * sizeof(size_t));
     size_t* misses = malloc(NUM_ACCESSES * sizeof(size_t));
 
-    if (!hits || !misses) 
+    if (!hits || !misses)
     {
         perror("Memory allocation failed");
         return 1;
@@ -46,11 +50,9 @@ int main()
 
     // We use the addr. of main for our test, but anything works.
     measure_multiple_accesses((void*) main, NUM_ACCESSES, hits, misses);
-
-    size_t threshold = find_crossover_point(hits, misses, NUM_ACCESSES);
-    printf("Suggested threshold: %zu\n", threshold);
+    find_crossover_point(hits, misses, NUM_ACCESSES);
 
     free(hits);
     free(misses);
     return 0;
-}
+}