Test perfschema.selects is unstable

[Laurynas Biveinis]

On 5.6 trunk:

perfschema.selects w1 [ fail ]
        Test ended at 2017-03-08 07:58:55

CURRENT_TEST: perfschema.selects
--- /mnt/workspace/percona-server-5.6-trunk/BUILD_TYPE/release/Host/centos6-32/mysql-test/suite/perfschema/r/selects.result 2017-03-08 15:12:09.756000002 +0300
+++ /mnt/workspace/percona-server-5.6-trunk/BUILD_TYPE/release/Host/centos6-32/build/mysql-test/var/1/log/selects.reject 2017-03-08 15:58:54.800000006 +0300
@@ -12,7 +12,7 @@
 ORDER BY OPERATION
 LIMIT 1;
 OPERATION TOTAL
-chsize [NUM_BYTES]
+recv [NUM_BYTES]
 SELECT EVENT_ID FROM performance_schema.events_waits_current
 WHERE THREAD_ID IN
 (SELECT THREAD_ID FROM performance_schema.threads)

mysqltest: Result content mismatch

safe_process[16969]: Child process: 16970, exit: 1

Server [mysqld.1 - pid: 16892, winpid: 16892] log:
Server log from this test:
----------SERVER LOG START-----------
2017-03-08 15:58:54 16894 [Note] Event Scheduler: Last execution of test.t_ps_event.
----------SERVER LOG END-------------

[Laurynas Biveinis (laurynas-biveinis)]

     https://github.com/percona/percona-server/pull/1614
     https://github.com/percona/percona-server/pull/1615

[Shahriyar Rzayev (rzayev-sehriyar)]

Percona now uses JIRA for bug reports so this bug report is migrated to: https://jira.percona.com/browse/PS-2245