ocfs2/cluster: Track process message timing stats for each socket

Tracks total time taken to process messages received on a socket.

Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
Signed-off-by: Joel Becker <joel.becker@oracle.com>

2 files changed, 17 insertions, 0 deletions

diff --git a/fs/ocfs2/cluster/tcp.c b/fs/ocfs2/cluster/tcp.c
index 4d61e19d6146..bc2309554d0b 100644
--- a/fs/ocfs2/cluster/tcp.c
+++ b/fs/ocfs2/cluster/tcp.c
@@ -209,6 +209,11 @@ static inline void o2net_set_func_stop_time(struct o2net_sock_container *sc)
 {
         sc->sc_tv_func_stop = ktime_get();
 }
+
+static ktime_t o2net_get_func_run_time(struct o2net_sock_container *sc)
+{
+        return ktime_sub(sc->sc_tv_func_stop, sc->sc_tv_func_start);
+}
 #else  /* CONFIG_DEBUG_FS */
 # define o2net_init_nst(a, b, c, d, e)
 # define o2net_set_nst_sock_time(a)
@@ -222,6 +227,7 @@ static inline void o2net_set_func_stop_time(struct o2net_sock_container *sc)
 # define o2net_set_advance_stop_time(a)
 # define o2net_set_func_start_time(a)
 # define o2net_set_func_stop_time(a)
+# define o2net_get_func_run_time(a)             (ktime_t)0
 #endif /* CONFIG_DEBUG_FS */
 
 #ifdef CONFIG_OCFS2_FS_STATS
@@ -240,6 +246,13 @@ static void o2net_update_send_stats(struct o2net_send_tracking *nst,
         sc->sc_send_count++;
 }
 
+static void o2net_update_recv_stats(struct o2net_sock_container *sc)
+{
+        sc->sc_tv_process_total = ktime_add(sc->sc_tv_process_total,
+                                            o2net_get_func_run_time(sc));
+        sc->sc_recv_count++;
+}
+
 #else
 
 # define o2net_update_send_stats(a, b)
@@ -1238,6 +1251,8 @@ static int o2net_process_message(struct o2net_sock_container *sc,
                                         nmh->nh_func_data, &ret_data);
         o2net_set_func_stop_time(sc);
 
+        o2net_update_recv_stats(sc);
+
 out_respond:
         /* this destroys the hdr, so don't use it after this */
         mutex_lock(&sc->sc_send_lock);
diff --git a/fs/ocfs2/cluster/tcp_internal.h b/fs/ocfs2/cluster/tcp_internal.h
index 640c6fcef720..4cbcb65784a3 100644
--- a/fs/ocfs2/cluster/tcp_internal.h
+++ b/fs/ocfs2/cluster/tcp_internal.h
@@ -184,6 +184,8 @@ struct o2net_sock_container {
         ktime_t                 sc_tv_send_total;
         ktime_t                 sc_tv_status_total;
         u32                     sc_send_count;
+        u32                     sc_recv_count;
+        ktime_t                 sc_tv_process_total;
 #endif
         struct mutex            sc_send_lock;
 };