LP #999309: Wrong execution time counting in INFORMATION_SCHEMA.QUERY_RESPONSE_TIME for stored procedures

Description

**Reported in Launchpad by Vlad Lesin last update 30-03-2016 12:04:21

It seems QUERY_RESPONSE_TIME feature counts total execution time wrong for stored procedures.

The first it counts statements execution time inside of stored procedure cumulatively. And it counts the total execution time of "call" statement twice - one for the statements inside stored procedure, second - for "CALL" itself. For example, if we have the following SP:

create procedure aaa()
begin
select sleep(2);
select sleep(2);
end

we expect the total 2(or 3?) queries with execution time between 1s and 10s and the total execution time of such queries is 4(or 8?) seconds.

But really we have 10 seconds which is counted as:

2 (the first sleep) + 4 (the first sleep + the second one) + 4 (the "call" itself) = 10.

We can check that behavior the following way:

mysql> call aaa();
----------

sleep(2)

----------

0

----------
1 row in set (2.03 sec)

----------

sleep(2)

----------

0

----------
1 row in set (4.32 sec)

Query OK, 0 rows affected (4.32 sec)

mysql> SELECT * from INFORMATION_SCHEMA.QUERY_RESPONSE_TIME;
---------------------------------------

time

count

total

---------------------------------------

0.000001

0

0.000000

0.000010

0

0.000000

0.000100

0

0.000000

0.001000

2

0.001044

0.010000

1

0.002569

0.100000

2

0.032284

1.000000

0

0.000000

10.000000

3

10.579363

<<<<<<<<

100.000000

0

0.000000

1000.000000

0

0.000000

10000.000000

0

0.000000

100000.000000

0

0.000000

1000000.000000

0

0.000000

TOO LONG

0

TOO LONG

---------------------------------------
14 rows in set (0.00 sec)

Environment

None

Smart Checklist

Activity

Julia Vural March 4, 2025 at 9:21 PM

It appears that this issue is no longer being worked on, so we are closing it for housekeeping purposes. If you believe the issue still exists, please open a new ticket after confirming it's present in the latest release.

Won't Do

Details

Assignee

Reporter

Priority

Smart Checklist

Created January 21, 2018 at 12:28 PM
Updated March 4, 2025 at 9:21 PM
Resolved March 4, 2025 at 9:21 PM