run --netstats on 1s interval; caching user name.

1 files changed, 17 insertions, 3 deletions

diff --git a/src/firemon/netstats.c b/src/firemon/netstats.c
index 53399300c..f83be9823 100644
--- a/src/firemon/netstats.c
+++ b/src/firemon/netstats.c
@@ -29,6 +29,20 @@
 // ip -s link: device stats
 // ss -s: socket stats
 
+static uid_t cached_uid = 0;
+static char *cached_user_name = NULL;
+
+static char *get_user_name(uid_t uid) {
+        if (cached_user_name == NULL) {
+                cached_uid = uid;
+                cached_user_name = pid_get_user_name(uid);
+                return strdup(cached_user_name);
+        }
+        else if (uid == cached_uid)
+                return strdup(cached_user_name);
+        else
+                return pid_get_user_name(uid);
+}
 
 static char *get_header(void) {
         char *rv;
@@ -151,7 +165,7 @@ static void print_proc(int index, int itv, int col) {
         snprintf(pidstr, 10, "%u", index);
 
         // user
-        char *user = pid_get_user_name(pids[index].uid);
+        char *user = get_user_name(pids[index].uid);
         char *ptruser;
         if (user)
                 ptruser = user;
@@ -190,7 +204,7 @@ void netstats(void) {
         while (1) {
                 // set pid table
                 int i;
-                int itv = 5;    // 5 second  interval
+                int itv = 1;    // 1 second  interval
                 pid_read(0);
 
                 // start rx/tx measurements
@@ -199,7 +213,7 @@ void netstats(void) {
                                 get_stats(i);
                 }
 
-                // wait 5 seconds
+                // wait 1 seconds
                 firemon_sleep(itv);
 
                 // grab screen size