forked from ccfos/huatuo
121 lines
3.1 KiB
Go
121 lines
3.1 KiB
Go
// Copyright 2025 The HuaTuo Authors
|
|
//
|
|
// 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,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
package collector
|
|
|
|
import (
|
|
"bytes"
|
|
"context"
|
|
"encoding/binary"
|
|
"fmt"
|
|
"time"
|
|
|
|
"huatuo-bamai/internal/bpf"
|
|
"huatuo-bamai/internal/log"
|
|
"huatuo-bamai/internal/pod"
|
|
"huatuo-bamai/internal/utils/bpfutil"
|
|
)
|
|
|
|
//go:generate $BPF_COMPILE $BPF_INCLUDE -s $BPF_DIR/runqlat_tracing.c -o $BPF_DIR/runqlat_tracing.o
|
|
|
|
type latencyBpfData struct {
|
|
NumVoluntarySwitch uint64
|
|
NumInVoluntarySwitch uint64
|
|
NumLatency01 uint64
|
|
NumLatency02 uint64
|
|
NumLatency03 uint64
|
|
NumLatency04 uint64
|
|
}
|
|
|
|
var (
|
|
globalRunqlat latencyBpfData
|
|
runqlatRunning bool
|
|
)
|
|
|
|
func startRunqlatTracerWork(ctx context.Context) error {
|
|
// load bpf.
|
|
b, err := bpf.LoadBpf(bpfutil.ThisBpfOBJ(), nil)
|
|
if err != nil {
|
|
return fmt.Errorf("failed to LoadBpf, err: %w", err)
|
|
}
|
|
defer b.Close()
|
|
|
|
if err = b.Attach(); err != nil {
|
|
return err
|
|
}
|
|
|
|
childCtx, cancel := context.WithCancel(ctx)
|
|
defer cancel()
|
|
|
|
b.WaitDetachByBreaker(childCtx, cancel)
|
|
|
|
runqlatRunning = true
|
|
|
|
for {
|
|
select {
|
|
case <-ctx.Done():
|
|
return nil
|
|
default:
|
|
var css uint64
|
|
|
|
items, err := b.DumpMapByName("cpu_tg_metric")
|
|
if err != nil {
|
|
return fmt.Errorf("failed to dump cpu_tg_metric: %w", err)
|
|
}
|
|
for _, v := range items {
|
|
buf := bytes.NewReader(v.Key)
|
|
if err = binary.Read(buf, binary.LittleEndian, &css); err != nil {
|
|
return fmt.Errorf("can't read cpu_tg_metric key: %w", err)
|
|
}
|
|
container, _ := pod.GetContainerByCSS(css, "cpu")
|
|
if container == nil {
|
|
continue
|
|
}
|
|
|
|
buf = bytes.NewReader(v.Value)
|
|
if err = binary.Read(buf, binary.LittleEndian, container.LifeResouces("runqlat").(*latencyBpfData)); err != nil {
|
|
return fmt.Errorf("can't read cpu_tg_metric value: %w", err)
|
|
}
|
|
}
|
|
|
|
item, err := b.ReadMap(b.MapIDByName("cpu_host_metric"), []byte{0, 0, 0, 0})
|
|
if err != nil {
|
|
return fmt.Errorf("failed to read cpu_host_metric: %w", err)
|
|
}
|
|
buf := bytes.NewReader(item)
|
|
if err = binary.Read(buf, binary.LittleEndian, &globalRunqlat); err != nil {
|
|
log.Errorf("can't read cpu_host_metric: %v", err)
|
|
return err
|
|
}
|
|
|
|
time.Sleep(2 * time.Second)
|
|
}
|
|
}
|
|
}
|
|
|
|
// Start runqlat work, load bpf and wait data form perfevent
|
|
func (c *runqlatCollector) Start(ctx context.Context) error {
|
|
err := startRunqlatTracerWork(ctx)
|
|
|
|
containers, _ := pod.GetContainersByType(pod.ContainerTypeNormal)
|
|
for _, container := range containers {
|
|
runqlatData := container.LifeResouces("runqlat").(*latencyBpfData)
|
|
*runqlatData = latencyBpfData{}
|
|
}
|
|
|
|
runqlatRunning = false
|
|
|
|
return err
|
|
}
|