blob: 441db68cda86951a81f54a3828f1664bbe2110a7 (
plain)
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
|
package flamegraph
import (
"fmt"
)
// Counter aggregates statistics for a logical flamegraph node.
//
// Duration and DurationToPrev use the same timing semantics as event.Pair:
// - Duration is the syscall runtime on the same thread.
// - DurationToPrev is the inter-syscall gap on the same thread and is attributed
// to the current node; there is no separate "idle" pseudo-node.
//
// Bytes is only populated for read/write/transfer syscalls.
type Counter struct {
Count uint64
Duration uint64
DurationToPrev uint64
Bytes uint64 // Bytes transferred (only set for read/write/transfer syscalls)
}
func (c Counter) add(other Counter) Counter {
c.Count += other.Count
c.Duration += other.Duration
c.DurationToPrev += other.DurationToPrev
c.Bytes += other.Bytes
return c
}
func (c Counter) ValueByName(name string) (uint64, error) {
switch name {
case "count":
return c.Count, nil
case "duration":
return c.Duration, nil
case "durationToPrev":
return c.DurationToPrev, nil
case "bytes":
return c.Bytes, nil
default:
return 0, fmt.Errorf("unknown counter field %q", name)
}
}
|
