stats: Account total time to restore

Signed-off-by: Pavel Emelyanov <xemul@parallels.com>

cr-restore.c

@@ -1389,6 +1389,8 @@ out:
 		return 1;
 	}
 
+	timing_stop(TIME_RESTORE);
+
 	pr_info("Restore finished successfully. Resuming tasks.\n");
 	futex_set_and_wake(&task_entries->start, CR_STATE_COMPLETE);
 
@@ -1423,6 +1425,8 @@ int cr_restore_tasks(void)
 	if (init_stats(RESTORE_STATS))
 		return -1;
 
+	timing_start(TIME_RESTORE);
+
 	if (cpu_init() < 0)
 		return -1;
 

include/stats.h

@@ -13,6 +13,7 @@ enum {
 
 enum {
 	TIME_FORK,
+	TIME_RESTORE,
 
 	RESTORE_TIME_NS_STATS,
 };

protobuf/stats.proto

@@ -15,6 +15,7 @@ message restore_stats_entry {
 	required uint64	pages_skipped_cow = 2;
 
 	required uint32	forking_time = 3;
+	required uint32	restore_time = 4;
 }
 
 message stats_entry {

stats.c

@@ -132,6 +132,7 @@ void write_stats(int what)
 		rs_entry.pages_skipped_cow = atomic_get(&rstats->counts[CNT_PAGES_SKIPPED_COW]);
 
 		encode_time(TIME_FORK, &rs_entry.forking_time);
+		encode_time(TIME_RESTORE, &rs_entry.restore_time);
 
 		name = "restore";
 	} else