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
|
package integrationtests
import "testing"
const (
mmapParquetDuration = 6
mmapWorkloadStartupEnv = "IOR_WORKLOAD_STARTUP_DELAY_MS=1000"
mmapScenarioAddressSpaceBytes = 8192
mmapMinAddressSpaceBytesTotal = mmapScenarioAddressSpaceBytes * 2
)
var mmapTraceArgs = []string{"-trace-syscalls", "openat,write,close,mmap,msync,mremap,munmap"}
func TestMmapBasic(t *testing.T) {
runScenarioResultWithIorArgs(t, "mmap-basic", []ExpectedEvent{
{
PathContains: "mmapfile.txt",
Tracepoint: "enter_mmap",
Comm: "ioworkload",
MinCount: 1,
},
}, mmapTraceArgs)
}
func TestMmapMsyncSync(t *testing.T) {
runScenarioResultWithIorArgs(t, "mmap-msync-sync", []ExpectedEvent{
{
PathContains: "msyncfile.txt",
Tracepoint: "enter_mmap",
Comm: "ioworkload",
MinCount: 1,
},
{
Tracepoint: "enter_msync",
Comm: "ioworkload",
MinCount: 1,
},
}, mmapTraceArgs)
}
func TestMmapMsyncInvalidFlags(t *testing.T) {
runScenarioResultWithIorArgs(t, "mmap-msync-invalid-flags", []ExpectedEvent{
{
PathContains: "msyncinvalidfile.txt",
Tracepoint: "enter_mmap",
Comm: "ioworkload",
MinCount: 1,
},
{
Tracepoint: "enter_msync",
Comm: "ioworkload",
MinCount: 1,
},
}, mmapTraceArgs)
}
func TestMmapMremapMunmap(t *testing.T) {
result, _ := runScenarioResultWithIorArgs(t, "mmap-mremap-munmap", []ExpectedEvent{
{
Tracepoint: "enter_mremap",
Comm: "ioworkload",
MinCount: 1,
},
{
Tracepoint: "enter_munmap",
Comm: "ioworkload",
MinCount: 1,
},
}, mmapTraceArgs)
assertEventBytesEqual(t, result, ExpectedEvent{
Tracepoint: "enter_mremap",
Comm: "ioworkload",
}, 0)
assertEventBytesEqual(t, result, ExpectedEvent{
Tracepoint: "enter_munmap",
Comm: "ioworkload",
}, 0)
}
func TestMmapMremapMunmapAddressSpaceBytesInParquet(t *testing.T) {
h := newTestHarness(t)
h.WorkloadEnv = []string{mmapWorkloadStartupEnv}
path, pid, err := h.RunParquetWithIorArgs("mmap-mremap-munmap", mmapParquetDuration, mmapTraceArgs)
if err != nil {
t.Fatalf("run mmap-mremap-munmap parquet scenario: %v", err)
}
rows := filterRecordsByPID(readParquetRecords(t, path), uint32(pid))
if len(rows) == 0 {
t.Fatalf("expected parquet rows for workload PID %d", pid)
}
var foundMremap, foundMunmap bool
var addressSpaceTotal uint64
for _, row := range rows {
switch row.Syscall {
case "mremap":
if row.Bytes != 0 {
t.Fatalf("mremap bytes = %d, want 0 (I/O bytes must stay separate)", row.Bytes)
}
if row.AddressSpaceBytes == mmapScenarioAddressSpaceBytes {
foundMremap = true
}
addressSpaceTotal += row.AddressSpaceBytes
case "munmap":
if row.Bytes != 0 {
t.Fatalf("munmap bytes = %d, want 0 (I/O bytes must stay separate)", row.Bytes)
}
if row.AddressSpaceBytes == mmapScenarioAddressSpaceBytes {
foundMunmap = true
}
addressSpaceTotal += row.AddressSpaceBytes
}
}
if !foundMremap {
t.Fatalf("expected mremap row with AddressSpaceBytes=%d", mmapScenarioAddressSpaceBytes)
}
if !foundMunmap {
t.Fatalf("expected munmap row with AddressSpaceBytes=%d", mmapScenarioAddressSpaceBytes)
}
if addressSpaceTotal < mmapMinAddressSpaceBytesTotal {
t.Fatalf("mremap+munmap AddressSpaceBytes total = %d, want >= %d", addressSpaceTotal, mmapMinAddressSpaceBytesTotal)
}
}
|
