diff --git a/include/srv0srv.h b/include/srv0srv.h
index 906f0e3875c..47acadcd286 100644
--- a/include/srv0srv.h
+++ b/include/srv0srv.h
@@ -157,33 +157,12 @@ extern	ulint	srv_pool_size;
 extern	ulint	srv_mem_pool_size;
 extern	ulint	srv_lock_table_size;
 
-extern	ulint	srv_sim_disk_wait_pct;
-extern	ulint	srv_sim_disk_wait_len;
-extern	ibool	srv_sim_disk_wait_by_yield;
-extern	ibool	srv_sim_disk_wait_by_wait;
-
-extern	ibool	srv_measure_contention;
-extern	ibool	srv_measure_by_spin;
-
 extern	ibool	srv_print_thread_releases;
 extern	ibool	srv_print_lock_waits;
 extern	ibool	srv_print_buf_io;
 extern	ibool	srv_print_log_io;
-extern	ibool	srv_print_parsed_sql;
 extern	ibool	srv_print_latch_waits;
 
-extern	ibool	srv_test_nocache;
-extern	ibool	srv_test_cache_evict;
-
-extern	ibool	srv_test_extra_mutexes;
-extern	ibool	srv_test_sync;
-extern	ulint	srv_test_n_threads;
-extern	ulint	srv_test_n_loops;
-extern	ulint	srv_test_n_free_rnds;
-extern	ulint	srv_test_n_reserved_rnds;
-extern	ulint	srv_test_n_mutexes;
-extern	ulint	srv_test_array_size;
-
 extern ulint	srv_activity_count;
 extern ulint	srv_fatal_semaphore_wait_threshold;
 extern ulint	srv_dml_needed_delay;
diff --git a/que/que0que.c b/que/que0que.c
index 59d90eb7e29..c6d287276c7 100644
--- a/que/que0que.c
+++ b/que/que0que.c
@@ -1340,14 +1340,6 @@ loop:
 	next_thr = que_thr_step(thr);
 	/*-------------------------*/
 
-	/* Test the effect on performance of adding extra mutex
-	reservations */
-
-/*	if (srv_test_extra_mutexes) {
-		mutex_enter(&kernel_mutex);
-		mutex_exit(&kernel_mutex);
-	}
-*/
 	loop_count++;
 
 	if (next_thr != thr) {
diff --git a/srv/srv0srv.c b/srv/srv0srv.c
index fe1eeab9c3f..9d7b5914b95 100644
--- a/srv/srv0srv.c
+++ b/srv/srv0srv.c
@@ -362,30 +362,6 @@ ibool	srv_print_innodb_lock_monitor	= FALSE;
 ibool	srv_print_innodb_tablespace_monitor = FALSE;
 ibool	srv_print_innodb_table_monitor = FALSE;
 
-/* The parameters below are obsolete: */
-
-ibool	srv_print_parsed_sql		= FALSE;
-
-ulint	srv_sim_disk_wait_pct		= ULINT_MAX;
-ulint	srv_sim_disk_wait_len		= ULINT_MAX;
-ibool	srv_sim_disk_wait_by_yield	= FALSE;
-ibool	srv_sim_disk_wait_by_wait	= FALSE;
-
-ibool	srv_measure_contention	= FALSE;
-ibool	srv_measure_by_spin	= FALSE;
-
-ibool	srv_test_extra_mutexes	= FALSE;
-ibool	srv_test_nocache	= FALSE;
-ibool	srv_test_cache_evict	= FALSE;
-
-ibool	srv_test_sync		= FALSE;
-ulint	srv_test_n_threads	= ULINT_MAX;
-ulint	srv_test_n_loops	= ULINT_MAX;
-ulint	srv_test_n_free_rnds	= ULINT_MAX;
-ulint	srv_test_n_reserved_rnds = ULINT_MAX;
-ulint	srv_test_array_size	= ULINT_MAX;
-ulint	srv_test_n_mutexes	= ULINT_MAX;
-
 /* Array of English strings describing the current state of an
 i/o handler thread */
 
diff --git a/srv/srv0start.c b/srv/srv0start.c
index c792d600500..6b55092a068 100644
--- a/srv/srv0start.c
+++ b/srv/srv0start.c
@@ -1540,11 +1540,6 @@ NetWare. */
 	}
 #endif /* UNIV_LOG_ARCHIVE */
 
-	if (srv_measure_contention) {
-		/* os_thread_create(&test_measure_cont, NULL, thread_ids +
-		   SRV_MAX_N_IO_THREADS); */
-	}
-
 	/* fprintf(stderr, "Max allowed record size %lu\n",
 				page_get_free_space_of_empty() / 2); */