mirror of https://github.com/k3s-io/k3s
75 lines
2.0 KiB
Go
75 lines
2.0 KiB
Go
// +build linux
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// Copyright 2020 Google Inc. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// Collector of resctrl for a container.
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package resctrl
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import (
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info "github.com/google/cadvisor/info/v1"
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"github.com/google/cadvisor/stats"
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"github.com/opencontainers/runc/libcontainer/configs"
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"github.com/opencontainers/runc/libcontainer/intelrdt"
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)
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type collector struct {
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resctrl intelrdt.Manager
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stats.NoopDestroy
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}
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func newCollector(id string, resctrlPath string) *collector {
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collector := &collector{
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resctrl: intelrdt.NewManager(
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&configs.Config{
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IntelRdt: &configs.IntelRdt{},
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},
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id,
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resctrlPath,
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),
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}
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return collector
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}
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func (c *collector) UpdateStats(stats *info.ContainerStats) error {
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stats.Resctrl = info.ResctrlStats{}
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resctrlStats, err := c.resctrl.GetStats()
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if err != nil {
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return err
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}
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numberOfNUMANodes := len(*resctrlStats.MBMStats)
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stats.Resctrl.MemoryBandwidth = make([]info.MemoryBandwidthStats, 0, numberOfNUMANodes)
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stats.Resctrl.Cache = make([]info.CacheStats, 0, numberOfNUMANodes)
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for _, numaNodeStats := range *resctrlStats.MBMStats {
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stats.Resctrl.MemoryBandwidth = append(stats.Resctrl.MemoryBandwidth,
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info.MemoryBandwidthStats{
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TotalBytes: numaNodeStats.MBMTotalBytes,
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LocalBytes: numaNodeStats.MBMLocalBytes,
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})
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}
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for _, numaNodeStats := range *resctrlStats.CMTStats {
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stats.Resctrl.Cache = append(stats.Resctrl.Cache,
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info.CacheStats{LLCOccupancy: numaNodeStats.LLCOccupancy})
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}
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return nil
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}
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