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|
update performance_schema.threads
set INSTRUMENTED='NO'
where PROCESSLIST_ID = connection_id();
TRUNCATE TABLE performance_schema.events_statements_summary_by_digest;
TRUNCATE TABLE performance_schema.events_statements_histogram_by_digest;
TRUNCATE TABLE performance_schema.events_statements_histogram_global;
select count(*) from performance_schema.events_statements_summary_by_digest;
count(*)
0
select count(*) from performance_schema.events_statements_histogram_by_digest;
count(*)
0
select count(*) from performance_schema.events_statements_histogram_global;
count(*)
450
select * from performance_schema.events_statements_histogram_global
where COUNT_BUCKET > 0;
BUCKET_NUMBER BUCKET_TIMER_LOW BUCKET_TIMER_HIGH COUNT_BUCKET COUNT_BUCKET_AND_LOWER BUCKET_QUANTILE
select BUCKET_NUMBER, BUCKET_TIMER_LOW, BUCKET_TIMER_HIGH
from performance_schema.events_statements_histogram_global
where BUCKET_NUMBER <= 10
order by BUCKET_NUMBER;
BUCKET_NUMBER BUCKET_TIMER_LOW BUCKET_TIMER_HIGH
0 0 10000000
1 10000000 10471285
2 10471285 10964781
3 10964781 11481536
4 11481536 12022644
5 12022644 12589254
6 12589254 13182567
7 13182567 13803842
8 13803842 14454397
9 14454397 15135612
10 15135612 15848931
select BUCKET_NUMBER, BUCKET_TIMER_LOW, BUCKET_TIMER_HIGH
from performance_schema.events_statements_histogram_global
where BUCKET_NUMBER >= 440
order by BUCKET_NUMBER;
BUCKET_NUMBER BUCKET_TIMER_LOW BUCKET_TIMER_HIGH
440 6025595860743779 6309573444802144
441 6309573444802144 6606934480076182
442 6606934480076182 6918309709189598
443 6918309709189598 7244359600750145
444 7244359600750145 7585775750292094
445 7585775750292094 7943282347243084
446 7943282347243084 8317637711026992
447 8317637711026992 8709635899561102
448 8709635899561102 9120108393559408
449 9120108393559408 18446744073709551615
select min(BUCKET_TIMER_HIGH/BUCKET_TIMER_LOW),
max(BUCKET_TIMER_HIGH/BUCKET_TIMER_LOW)
from performance_schema.events_statements_histogram_global
where (BUCKET_NUMBER > 0) and (BUCKET_NUMBER < 449);
min(BUCKET_TIMER_HIGH/BUCKET_TIMER_LOW) max(BUCKET_TIMER_HIGH/BUCKET_TIMER_LOW)
1.0471 1.0471
select "A 1st statement" as marker_one;
marker_one
A 1st statement
select count(*)
from performance_schema.events_statements_histogram_by_digest;
count(*)
450
select count(*)
from performance_schema.events_statements_histogram_by_digest
where COUNT_BUCKET > 0;
count(*)
1
select DIGEST
from performance_schema.events_statements_summary_by_digest
where DIGEST_TEXT like "%marker_one%"
into @digest_one;
select count(*)
from performance_schema.events_statements_histogram_by_digest
where DIGEST = @digest_one;
count(*)
450
select BUCKET_NUMBER, BUCKET_TIMER_LOW, BUCKET_TIMER_HIGH
from performance_schema.events_statements_histogram_by_digest
where (BUCKET_NUMBER <= 10)
and (DIGEST = @digest_one)
order by BUCKET_NUMBER;
BUCKET_NUMBER BUCKET_TIMER_LOW BUCKET_TIMER_HIGH
0 0 10000000
1 10000000 10471285
2 10471285 10964781
3 10964781 11481536
4 11481536 12022644
5 12022644 12589254
6 12589254 13182567
7 13182567 13803842
8 13803842 14454397
9 14454397 15135612
10 15135612 15848931
select BUCKET_NUMBER, BUCKET_TIMER_LOW, BUCKET_TIMER_HIGH
from performance_schema.events_statements_histogram_by_digest
where (BUCKET_NUMBER >= 440)
and (DIGEST = @digest_one)
order by BUCKET_NUMBER;
BUCKET_NUMBER BUCKET_TIMER_LOW BUCKET_TIMER_HIGH
440 6025595860743779 6309573444802144
441 6309573444802144 6606934480076182
442 6606934480076182 6918309709189598
443 6918309709189598 7244359600750145
444 7244359600750145 7585775750292094
445 7585775750292094 7943282347243084
446 7943282347243084 8317637711026992
447 8317637711026992 8709635899561102
448 8709635899561102 9120108393559408
449 9120108393559408 18446744073709551615
select min(BUCKET_TIMER_HIGH/BUCKET_TIMER_LOW),
max(BUCKET_TIMER_HIGH/BUCKET_TIMER_LOW)
from performance_schema.events_statements_histogram_by_digest
where (BUCKET_NUMBER > 0) and (BUCKET_NUMBER < 449)
and (DIGEST = @digest_one);
min(BUCKET_TIMER_HIGH/BUCKET_TIMER_LOW) max(BUCKET_TIMER_HIGH/BUCKET_TIMER_LOW)
1.0471 1.0471
select sum(COUNT_BUCKET)
from performance_schema.events_statements_histogram_by_digest
where DIGEST = @digest_one;
sum(COUNT_BUCKET)
1
select sum(COUNT_BUCKET)
from performance_schema.events_statements_histogram_global;
sum(COUNT_BUCKET)
1
select "A 1st statement, again" as marker_one;
marker_one
A 1st statement, again
select sum(COUNT_BUCKET)
from performance_schema.events_statements_histogram_by_digest
where DIGEST = @digest_one;
sum(COUNT_BUCKET)
2
select sum(COUNT_BUCKET)
from performance_schema.events_statements_histogram_global;
sum(COUNT_BUCKET)
2
select "A 1st statement, again and again" as marker_one;
marker_one
A 1st statement, again and again
select sum(COUNT_BUCKET)
from performance_schema.events_statements_histogram_by_digest
where DIGEST = @digest_one;
sum(COUNT_BUCKET)
3
select sum(COUNT_BUCKET)
from performance_schema.events_statements_histogram_global;
sum(COUNT_BUCKET)
3
select "A 2nd statement" as marker_two;
marker_two
A 2nd statement
select DIGEST
from performance_schema.events_statements_summary_by_digest
where DIGEST_TEXT like "%marker_two%"
into @digest_two;
select sum(COUNT_BUCKET)
from performance_schema.events_statements_histogram_by_digest
where DIGEST = @digest_one;
sum(COUNT_BUCKET)
3
select sum(COUNT_BUCKET)
from performance_schema.events_statements_histogram_by_digest
where DIGEST = @digest_two;
sum(COUNT_BUCKET)
1
select sum(COUNT_BUCKET)
from performance_schema.events_statements_histogram_global;
sum(COUNT_BUCKET)
4
select "A 2nd statement, again" as marker_two;
marker_two
A 2nd statement, again
select sum(COUNT_BUCKET), max(COUNT_BUCKET_AND_LOWER)
from performance_schema.events_statements_histogram_by_digest
where DIGEST = @digest_one;
sum(COUNT_BUCKET) max(COUNT_BUCKET_AND_LOWER)
3 3
select sum(COUNT_BUCKET), max(COUNT_BUCKET_AND_LOWER)
from performance_schema.events_statements_histogram_by_digest
where DIGEST = @digest_two;
sum(COUNT_BUCKET) max(COUNT_BUCKET_AND_LOWER)
2 2
select sum(COUNT_BUCKET)
from performance_schema.events_statements_histogram_global;
sum(COUNT_BUCKET)
5
select sum(COUNT_BUCKET)
from performance_schema.events_statements_histogram_by_digest
where (DIGEST = @digest_one)
into @sum_digest_one;
select min(BUCKET_TIMER_LOW)
from performance_schema.events_statements_histogram_by_digest
where (DIGEST = @digest_one)
and (COUNT_BUCKET > 0)
into @min_digest_one;
select BUCKET_TIMER_HIGH
from performance_schema.events_statements_histogram_by_digest
where (DIGEST = @digest_one)
and (COUNT_BUCKET_AND_LOWER = @sum_digest_one)
order by BUCKET_NUMBER
limit 1
into @max_digest_one;
select DIGEST_TEXT,
"Check quantile relative values" as check_title,
(0 <= QUANTILE_95) as check_1,
(QUANTILE_95 <= QUANTILE_99) as check_2,
(QUANTILE_99 <= QUANTILE_999) as check_3
from performance_schema.events_statements_summary_by_digest;
DIGEST_TEXT check_title check_1 check_2 check_3
SELECT ? AS `marker_one` Check quantile relative values 1 1 1
SELECT ? AS `marker_two` Check quantile relative values 1 1 1
select
DIGEST_TEXT,
"Check quantile values within bounds" as check_title,
(0 <= @min_digest_one) as check_1,
(@min_digest_one <= QUANTILE_95) as check_2,
(QUANTILE_999 <= @max_digest_one) as check_3
from performance_schema.events_statements_summary_by_digest
where DIGEST = @digest_one;
DIGEST_TEXT check_title check_1 check_2 check_3
SELECT ? AS `marker_one` Check quantile values within bounds 1 1 1
truncate table performance_schema.events_statements_histogram_by_digest;
select count(*)
from performance_schema.events_statements_histogram_by_digest
where DIGEST = @digest_one;
count(*)
450
select sum(COUNT_BUCKET)
from performance_schema.events_statements_histogram_by_digest
where DIGEST = @digest_one;
sum(COUNT_BUCKET)
0
select count(*)
from performance_schema.events_statements_histogram_by_digest
where DIGEST = @digest_two;
count(*)
450
select sum(COUNT_BUCKET)
from performance_schema.events_statements_histogram_by_digest
where DIGEST = @digest_two;
sum(COUNT_BUCKET)
0
select sum(COUNT_BUCKET)
from performance_schema.events_statements_histogram_global;
sum(COUNT_BUCKET)
5
select DIGEST_TEXT, COUNT_STAR
from performance_schema.events_statements_summary_by_digest;
DIGEST_TEXT COUNT_STAR
SELECT ? AS `marker_one` 3
SELECT ? AS `marker_two` 2
select "A 2nd statement, again" as marker_two;
marker_two
A 2nd statement, again
select sum(COUNT_BUCKET)
from performance_schema.events_statements_histogram_by_digest
where DIGEST = @digest_one;
sum(COUNT_BUCKET)
0
select sum(COUNT_BUCKET)
from performance_schema.events_statements_histogram_by_digest
where DIGEST = @digest_two;
sum(COUNT_BUCKET)
1
select sum(COUNT_BUCKET)
from performance_schema.events_statements_histogram_global;
sum(COUNT_BUCKET)
6
truncate table performance_schema.events_statements_histogram_global;
select sum(COUNT_BUCKET)
from performance_schema.events_statements_histogram_by_digest
where DIGEST = @digest_one;
sum(COUNT_BUCKET)
0
select sum(COUNT_BUCKET)
from performance_schema.events_statements_histogram_by_digest
where DIGEST = @digest_two;
sum(COUNT_BUCKET)
1
select sum(COUNT_BUCKET)
from performance_schema.events_statements_histogram_global;
sum(COUNT_BUCKET)
0
select DIGEST_TEXT, COUNT_STAR
from performance_schema.events_statements_summary_by_digest;
DIGEST_TEXT COUNT_STAR
SELECT ? AS `marker_one` 3
SELECT ? AS `marker_two` 3
select "A 1st statement, again" as marker_one;
marker_one
A 1st statement, again
select sum(COUNT_BUCKET)
from performance_schema.events_statements_histogram_by_digest
where DIGEST = @digest_one;
sum(COUNT_BUCKET)
1
select sum(COUNT_BUCKET)
from performance_schema.events_statements_histogram_by_digest
where DIGEST = @digest_two;
sum(COUNT_BUCKET)
1
select sum(COUNT_BUCKET)
from performance_schema.events_statements_histogram_global;
sum(COUNT_BUCKET)
1
truncate table performance_schema.events_statements_summary_by_digest;
select count(*)
from performance_schema.events_statements_histogram_by_digest;
count(*)
0
select sum(COUNT_BUCKET)
from performance_schema.events_statements_histogram_global;
sum(COUNT_BUCKET)
1
select "A 1st statement, another time" as marker_one;
marker_one
A 1st statement, another time
select count(*)
from performance_schema.events_statements_histogram_by_digest;
count(*)
450
select sum(COUNT_BUCKET)
from performance_schema.events_statements_histogram_by_digest
where DIGEST = @digest_one;
sum(COUNT_BUCKET)
1
select count(*)
from performance_schema.events_statements_histogram_by_digest
where DIGEST = @digest_two;
count(*)
0
select sum(COUNT_BUCKET)
from performance_schema.events_statements_histogram_global;
sum(COUNT_BUCKET)
2
truncate table performance_schema.events_statements_summary_global_by_event_name;
select count(*)
from performance_schema.events_statements_histogram_by_digest;
count(*)
450
select sum(COUNT_BUCKET)
from performance_schema.events_statements_histogram_by_digest
where DIGEST = @digest_one;
sum(COUNT_BUCKET)
1
select count(*)
from performance_schema.events_statements_histogram_by_digest
where DIGEST = @digest_two;
count(*)
0
select sum(COUNT_BUCKET)
from performance_schema.events_statements_histogram_global;
sum(COUNT_BUCKET)
0
|
