diff --git a/src/sb_lua.c b/src/sb_lua.c
index 72a4793..b7d75d1 100644
--- a/src/sb_lua.c
+++ b/src/sb_lua.c
@@ -885,12 +885,14 @@ int sb_lua_db_connect(lua_State *L)
   sb_lua_ctxt_t * const ctxt = &tls_lua_ctxt;
 
   ctxt->driver = db_create(NULL);
-  if (ctxt->driver == NULL) {
+  if (ctxt->driver == NULL)
+  {
     luaL_error(L, "DB initialization failed");
-    lua_pushstring(L, ctxt->driver->sname);
-    lua_setglobal(L, "db_driver");
   }
 
+  lua_pushstring(L, ctxt->driver->sname);
+  lua_setglobal(L, "db_driver");
+
   if (ctxt->con != NULL)
     return 0;
 
diff --git a/src/tests/cpu/sb_cpu.c b/src/tests/cpu/sb_cpu.c
index f3dfed6..46a9cf9 100644
--- a/src/tests/cpu/sb_cpu.c
+++ b/src/tests/cpu/sb_cpu.c
@@ -27,6 +27,8 @@
 # include <math.h>
 #endif
 
+#include <inttypes.h>
+
 #include "sysbench.h"
 
 /* CPU test arguments */
@@ -42,6 +44,7 @@ static int cpu_init(void);
 static void cpu_print_mode(void);
 static sb_event_t cpu_next_event(int thread_id);
 static int cpu_execute_event(sb_event_t *, int);
+static void cpu_report_cumulative(sb_stat_t *);
 static int cpu_done(void);
 
 static sb_test_t cpu_test =
@@ -53,6 +56,7 @@ static sb_test_t cpu_test =
     .print_mode = cpu_print_mode,
     .next_event = cpu_next_event,
     .execute_event = cpu_execute_event,
+    .report_cumulative = cpu_report_cumulative,
     .done = cpu_done
   },
   .args = cpu_args
@@ -124,6 +128,18 @@ void cpu_print_mode(void)
   log_text(LOG_NOTICE, "Prime numbers limit: %d\n", max_prime);
 }
 
+/* Print cumulative stats. */
+
+void cpu_report_cumulative(sb_stat_t *stat)
+{
+  log_text(LOG_NOTICE, "CPU speed:");
+  log_text(LOG_NOTICE, "    events per second: %8.2f",
+           stat->events / stat->time_interval);
+
+  sb_report_cumulative(stat);
+}
+
+
 int cpu_done(void)
 {
   return 0;
diff --git a/tests/t/test_cpu.t b/tests/t/test_cpu.t
index 645b205..61eb725 100644
--- a/tests/t/test_cpu.t
+++ b/tests/t/test_cpu.t
@@ -27,6 +27,8 @@ cpu benchmark tests
   
   Threads started!
   
+  CPU speed:
+      events per second: *.* (glob)
   
   General statistics:
       total time:                          *s (glob)