1 files changed, 57 insertions, 0 deletions
diff --git a/scripts/sys_schema/views/p_s/latest_file_io.sql b/scripts/sys_schema/views/p_s/latest_file_io.sql
new file mode 100644
index 00000000..9803cc6c
--- /dev/null
+++ b/scripts/sys_schema/views/p_s/latest_file_io.sql
@@ -0,0 +1,57 @@
+-- Copyright (c) 2014, 2015, Oracle and/or its affiliates. All rights reserved.
+--
+-- This program is free software; you can redistribute it and/or modify
+-- it under the terms of the GNU General Public License as published by
+-- the Free Software Foundation; version 2 of the License.
+--
+-- This program is distributed in the hope that it will be useful,
+-- but WITHOUT ANY WARRANTY; without even the implied warranty of
+-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+-- GNU General Public License for more details.
+--
+-- You should have received a copy of the GNU General Public License
+-- along with this program; if not, write to the Free Software
+-- Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+--
+-- View: latest_file_io
+--
+-- Shows the latest file IO, by file / thread.
+--
+-- mysql> select * from latest_file_io limit 5;
+-- +----------------------+----------------------------------------+------------+-----------+-----------+
+-- | thread               | file                                   | latency    | operation | requested |
+-- +----------------------+----------------------------------------+------------+-----------+-----------+
+-- | msandbox@localhost:1 | @@tmpdir/#sqlcf28_1_4e.MYI             | 9.26 us    | write     | 124 bytes |
+-- | msandbox@localhost:1 | @@tmpdir/#sqlcf28_1_4e.MYI             | 4.00 us    | write     | 2 bytes   |
+-- | msandbox@localhost:1 | @@tmpdir/#sqlcf28_1_4e.MYI             | 56.34 us   | close     | NULL      |
+-- | msandbox@localhost:1 | @@tmpdir/#sqlcf28_1_4e.MYD             | 53.93 us   | close     | NULL      |
+-- | msandbox@localhost:1 | @@tmpdir/#sqlcf28_1_4e.MYI             | 104.05 ms  | delete    | NULL      |
+-- +----------------------+----------------------------------------+------------+-----------+-----------+
+--
+
+CREATE OR REPLACE
+  ALGORITHM = MERGE
+  DEFINER = 'mariadb.sys'@'localhost'
+  SQL SECURITY INVOKER 
+VIEW latest_file_io (
+  thread,
+  file,
+  latency,
+  operation,
+  requested
+) AS
+SELECT IF(id IS NULL, 
+             CONCAT(SUBSTRING_INDEX(name, '/', -1), ':', thread_id), 
+             CONCAT(user, '@', host, ':', id)
+          ) thread, 
+       sys.format_path(object_name) file, 
+       sys.format_time(timer_wait) AS latency, 
+       operation, 
+       sys.format_bytes(number_of_bytes) AS requested
+  FROM performance_schema.events_waits_history_long 
+  JOIN performance_schema.threads USING (thread_id)
+  LEFT JOIN information_schema.processlist ON processlist_id = id
+ WHERE object_name IS NOT NULL
+   AND event_name LIKE 'wait/io/file/%'
+ ORDER BY timer_start;