forked from pingcap/tidb
-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathtopn_slow_query_test.go
143 lines (125 loc) · 6.22 KB
/
topn_slow_query_test.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
// Copyright 2018 PingCAP, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// See the License for the specific language governing permissions and
// limitations under the License.
package domain
import (
"time"
. "github.com/pingcap/check"
)
var _ = Suite(&testTopNSlowQuerySuite{})
type testTopNSlowQuerySuite struct{}
func (t *testTopNSlowQuerySuite) TestPush(c *C) {
slowQuery := newTopNSlowQueries(10, 0, 10)
// Insert data into the heap.
slowQuery.Append(&SlowQueryInfo{Duration: 300 * time.Millisecond})
slowQuery.Append(&SlowQueryInfo{Duration: 400 * time.Millisecond})
slowQuery.Append(&SlowQueryInfo{Duration: 500 * time.Millisecond})
slowQuery.Append(&SlowQueryInfo{Duration: 600 * time.Millisecond})
slowQuery.Append(&SlowQueryInfo{Duration: 700 * time.Millisecond})
slowQuery.Append(&SlowQueryInfo{Duration: 800 * time.Millisecond})
slowQuery.Append(&SlowQueryInfo{Duration: 900 * time.Millisecond})
slowQuery.Append(&SlowQueryInfo{Duration: 1000 * time.Millisecond})
slowQuery.Append(&SlowQueryInfo{Duration: 1100 * time.Millisecond})
slowQuery.Append(&SlowQueryInfo{Duration: 1200 * time.Millisecond})
c.Assert(slowQuery.user.data[0].Duration, Equals, 300*time.Millisecond)
checkHeap(&slowQuery.user, c)
// Update all data in the heap.
slowQuery.Append(&SlowQueryInfo{Duration: 1300 * time.Millisecond})
c.Assert(slowQuery.user.data[0].Duration, Equals, 400*time.Millisecond)
slowQuery.Append(&SlowQueryInfo{Duration: 1400 * time.Millisecond})
c.Assert(slowQuery.user.data[0].Duration, Equals, 500*time.Millisecond)
slowQuery.Append(&SlowQueryInfo{Duration: 1500 * time.Millisecond})
c.Assert(slowQuery.user.data[0].Duration, Equals, 600*time.Millisecond)
slowQuery.Append(&SlowQueryInfo{Duration: 1500 * time.Millisecond})
c.Assert(slowQuery.user.data[0].Duration, Equals, 700*time.Millisecond)
slowQuery.Append(&SlowQueryInfo{Duration: 1600 * time.Millisecond})
c.Assert(slowQuery.user.data[0].Duration, Equals, 800*time.Millisecond)
slowQuery.Append(&SlowQueryInfo{Duration: 1700 * time.Millisecond})
c.Assert(slowQuery.user.data[0].Duration, Equals, 900*time.Millisecond)
slowQuery.Append(&SlowQueryInfo{Duration: 1800 * time.Millisecond})
c.Assert(slowQuery.user.data[0].Duration, Equals, 1000*time.Millisecond)
slowQuery.Append(&SlowQueryInfo{Duration: 1900 * time.Millisecond})
c.Assert(slowQuery.user.data[0].Duration, Equals, 1100*time.Millisecond)
slowQuery.Append(&SlowQueryInfo{Duration: 2000 * time.Millisecond})
c.Assert(slowQuery.user.data[0].Duration, Equals, 1200*time.Millisecond)
slowQuery.Append(&SlowQueryInfo{Duration: 2100 * time.Millisecond})
c.Assert(slowQuery.user.data[0].Duration, Equals, 1300*time.Millisecond)
checkHeap(&slowQuery.user, c)
// Data smaller than heap top will not be inserted.
slowQuery.Append(&SlowQueryInfo{Duration: 1200 * time.Millisecond})
c.Assert(slowQuery.user.data[0].Duration, Equals, 1300*time.Millisecond)
slowQuery.Append(&SlowQueryInfo{Duration: 666 * time.Millisecond})
c.Assert(slowQuery.user.data[0].Duration, Equals, 1300*time.Millisecond)
}
func (t *testTopNSlowQuerySuite) TestRemoveExpired(c *C) {
now := time.Now()
slowQuery := newTopNSlowQueries(6, 3*time.Second, 10)
slowQuery.Append(&SlowQueryInfo{Start: now, Duration: 6})
slowQuery.Append(&SlowQueryInfo{Start: now.Add(1 * time.Second), Duration: 5})
slowQuery.Append(&SlowQueryInfo{Start: now.Add(2 * time.Second), Duration: 4})
slowQuery.Append(&SlowQueryInfo{Start: now.Add(3 * time.Second), Duration: 3})
slowQuery.Append(&SlowQueryInfo{Start: now.Add(4 * time.Second), Duration: 2})
c.Assert(slowQuery.user.data[0].Duration, Equals, 2*time.Nanosecond)
slowQuery.RemoveExpired(now.Add(5 * time.Second))
c.Assert(len(slowQuery.user.data), Equals, 2)
c.Assert(slowQuery.user.data[0].Duration, Equals, 2*time.Nanosecond)
slowQuery.Append(&SlowQueryInfo{Start: now.Add(3 * time.Second), Duration: 3})
slowQuery.Append(&SlowQueryInfo{Start: now.Add(4 * time.Second), Duration: 2})
slowQuery.Append(&SlowQueryInfo{Start: now.Add(5 * time.Second), Duration: 1})
slowQuery.Append(&SlowQueryInfo{Start: now.Add(6 * time.Second), Duration: 0})
c.Assert(len(slowQuery.user.data), Equals, 6)
c.Assert(slowQuery.user.data[0].Duration, Equals, 0*time.Nanosecond)
slowQuery.RemoveExpired(now.Add(6 * time.Second))
c.Assert(len(slowQuery.user.data), Equals, 4)
c.Assert(slowQuery.user.data[0].Duration, Equals, 0*time.Nanosecond)
}
func checkHeap(q *slowQueryHeap, c *C) {
for i := 0; i < len(q.data); i++ {
left := 2*i + 1
right := 2*i + 2
if left < len(q.data) {
c.Assert(q.data[i].Duration, LessEqual, q.data[left].Duration)
}
if right < len(q.data) {
c.Assert(q.data[i].Duration, LessEqual, q.data[right].Duration)
}
}
}
func (t *testTopNSlowQuerySuite) TestQueue(c *C) {
q := newTopNSlowQueries(10, time.Minute, 5)
q.Append(&SlowQueryInfo{SQL: "aaa"})
q.Append(&SlowQueryInfo{SQL: "bbb"})
q.Append(&SlowQueryInfo{SQL: "ccc"})
query := q.recent.Query(1)
c.Assert(*query[0], Equals, SlowQueryInfo{SQL: "ccc"})
query = q.recent.Query(2)
c.Assert(*query[0], Equals, SlowQueryInfo{SQL: "ccc"})
c.Assert(*query[1], Equals, SlowQueryInfo{SQL: "bbb"})
query = q.recent.Query(6)
c.Assert(*query[0], Equals, SlowQueryInfo{SQL: "ccc"})
c.Assert(*query[1], Equals, SlowQueryInfo{SQL: "bbb"})
c.Assert(*query[2], Equals, SlowQueryInfo{SQL: "aaa"})
q.Append(&SlowQueryInfo{SQL: "ddd"})
q.Append(&SlowQueryInfo{SQL: "eee"})
q.Append(&SlowQueryInfo{SQL: "fff"})
q.Append(&SlowQueryInfo{SQL: "ggg"})
query = q.recent.Query(3)
c.Assert(*query[0], Equals, SlowQueryInfo{SQL: "ggg"})
c.Assert(*query[1], Equals, SlowQueryInfo{SQL: "fff"})
c.Assert(*query[2], Equals, SlowQueryInfo{SQL: "eee"})
query = q.recent.Query(6)
c.Assert(*query[0], Equals, SlowQueryInfo{SQL: "ggg"})
c.Assert(*query[1], Equals, SlowQueryInfo{SQL: "fff"})
c.Assert(*query[2], Equals, SlowQueryInfo{SQL: "eee"})
c.Assert(*query[3], Equals, SlowQueryInfo{SQL: "ddd"})
c.Assert(*query[4], Equals, SlowQueryInfo{SQL: "ccc"})
}