Modify the histogram print function

packet-exchange/src/client.c

@@ -232,10 +232,15 @@ static void print_histograms() {
            \"props_names\": [\"user_space\", \"kernel_space\"],\
            \"units\": [\"us\", \"us\"],\
            \"props\": [");
+
+  int max_hist_val = 0;
   for (int i = 0; i < NB_HISTOGRAMS; i++) {
-    int max_hist_val = MAX_HIST_VAL;
     for (int j = 0; j < MAX_HIST_VAL; j++)
-      max_hist_val = histograms[i][j] ? j : max_hist_val;
+      if(histograms[i][j])
+        max_hist_val = j > max_hist_val ? j : max_hist_val;
+  }
+
+  for (int i = 0; i < NB_HISTOGRAMS; i++) {
 
     printf("[");
     for (int j = 0; j < max_hist_val; j++) {

packet-exchange/src/utilities.h

@@ -11,7 +11,7 @@
 #define SERVER_PORT "50000"
 #define SERVER_PORT_INT 50000
 #define MAX_HIST_VAL 1000
-#define NB_HISTOGRAMS 3
+#define NB_HISTOGRAMS 2
 
 uint64_t ts_to_uint(struct timespec t);
 void add_ns(struct timespec *t, uint64_t ns);