mirror of
https://github.com/superseriousbusiness/gotosocial.git
synced 2024-12-05 10:02:47 +00:00
57dc742c76
Bumps [github.com/KimMachineGun/automemlimit](https://github.com/KimMachineGun/automemlimit) from 0.2.4 to 0.2.5. - [Release notes](https://github.com/KimMachineGun/automemlimit/releases) - [Commits](https://github.com/KimMachineGun/automemlimit/compare/v0.2.4...v0.2.5) --- updated-dependencies: - dependency-name: github.com/KimMachineGun/automemlimit dependency-type: direct:production update-type: version-update:semver-patch ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
363 lines
8.2 KiB
Go
363 lines
8.2 KiB
Go
/*
|
|
Copyright The containerd 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 cgroup1
|
|
|
|
import (
|
|
"bufio"
|
|
"fmt"
|
|
"io"
|
|
"os"
|
|
"path/filepath"
|
|
"strconv"
|
|
"strings"
|
|
|
|
v1 "github.com/containerd/cgroups/v3/cgroup1/stats"
|
|
|
|
specs "github.com/opencontainers/runtime-spec/specs-go"
|
|
)
|
|
|
|
// NewBlkio returns a Blkio controller given the root folder of cgroups.
|
|
// It may optionally accept other configuration options, such as ProcRoot(path)
|
|
func NewBlkio(root string, options ...func(controller *blkioController)) *blkioController {
|
|
ctrl := &blkioController{
|
|
root: filepath.Join(root, string(Blkio)),
|
|
procRoot: "/proc",
|
|
}
|
|
for _, opt := range options {
|
|
opt(ctrl)
|
|
}
|
|
return ctrl
|
|
}
|
|
|
|
// ProcRoot overrides the default location of the "/proc" filesystem
|
|
func ProcRoot(path string) func(controller *blkioController) {
|
|
return func(c *blkioController) {
|
|
c.procRoot = path
|
|
}
|
|
}
|
|
|
|
type blkioController struct {
|
|
root string
|
|
procRoot string
|
|
}
|
|
|
|
func (b *blkioController) Name() Name {
|
|
return Blkio
|
|
}
|
|
|
|
func (b *blkioController) Path(path string) string {
|
|
return filepath.Join(b.root, path)
|
|
}
|
|
|
|
func (b *blkioController) Create(path string, resources *specs.LinuxResources) error {
|
|
if err := os.MkdirAll(b.Path(path), defaultDirPerm); err != nil {
|
|
return err
|
|
}
|
|
if resources.BlockIO == nil {
|
|
return nil
|
|
}
|
|
for _, t := range createBlkioSettings(resources.BlockIO) {
|
|
if t.value != nil {
|
|
if err := os.WriteFile(
|
|
filepath.Join(b.Path(path), "blkio."+t.name),
|
|
t.format(t.value),
|
|
defaultFilePerm,
|
|
); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func (b *blkioController) Update(path string, resources *specs.LinuxResources) error {
|
|
return b.Create(path, resources)
|
|
}
|
|
|
|
func (b *blkioController) Stat(path string, stats *v1.Metrics) error {
|
|
stats.Blkio = &v1.BlkIOStat{}
|
|
|
|
var settings []blkioStatSettings
|
|
|
|
// Try to read CFQ stats available on all CFQ enabled kernels first
|
|
if _, err := os.Lstat(filepath.Join(b.Path(path), "blkio.io_serviced_recursive")); err == nil {
|
|
settings = []blkioStatSettings{
|
|
{
|
|
name: "sectors_recursive",
|
|
entry: &stats.Blkio.SectorsRecursive,
|
|
},
|
|
{
|
|
name: "io_service_bytes_recursive",
|
|
entry: &stats.Blkio.IoServiceBytesRecursive,
|
|
},
|
|
{
|
|
name: "io_serviced_recursive",
|
|
entry: &stats.Blkio.IoServicedRecursive,
|
|
},
|
|
{
|
|
name: "io_queued_recursive",
|
|
entry: &stats.Blkio.IoQueuedRecursive,
|
|
},
|
|
{
|
|
name: "io_service_time_recursive",
|
|
entry: &stats.Blkio.IoServiceTimeRecursive,
|
|
},
|
|
{
|
|
name: "io_wait_time_recursive",
|
|
entry: &stats.Blkio.IoWaitTimeRecursive,
|
|
},
|
|
{
|
|
name: "io_merged_recursive",
|
|
entry: &stats.Blkio.IoMergedRecursive,
|
|
},
|
|
{
|
|
name: "time_recursive",
|
|
entry: &stats.Blkio.IoTimeRecursive,
|
|
},
|
|
}
|
|
}
|
|
|
|
f, err := os.Open(filepath.Join(b.procRoot, "partitions"))
|
|
if err != nil {
|
|
return err
|
|
}
|
|
defer f.Close()
|
|
|
|
devices, err := getDevices(f)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
var size int
|
|
for _, t := range settings {
|
|
if err := b.readEntry(devices, path, t.name, t.entry); err != nil {
|
|
return err
|
|
}
|
|
size += len(*t.entry)
|
|
}
|
|
if size > 0 {
|
|
return nil
|
|
}
|
|
|
|
// Even the kernel is compiled with the CFQ scheduler, the cgroup may not use
|
|
// block devices with the CFQ scheduler. If so, we should fallback to throttle.* files.
|
|
settings = []blkioStatSettings{
|
|
{
|
|
name: "throttle.io_serviced",
|
|
entry: &stats.Blkio.IoServicedRecursive,
|
|
},
|
|
{
|
|
name: "throttle.io_service_bytes",
|
|
entry: &stats.Blkio.IoServiceBytesRecursive,
|
|
},
|
|
}
|
|
for _, t := range settings {
|
|
if err := b.readEntry(devices, path, t.name, t.entry); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func (b *blkioController) readEntry(devices map[deviceKey]string, path, name string, entry *[]*v1.BlkIOEntry) error {
|
|
f, err := os.Open(filepath.Join(b.Path(path), "blkio."+name))
|
|
if err != nil {
|
|
return err
|
|
}
|
|
defer f.Close()
|
|
sc := bufio.NewScanner(f)
|
|
for sc.Scan() {
|
|
// format: dev type amount
|
|
fields := strings.FieldsFunc(sc.Text(), splitBlkIOStatLine)
|
|
if len(fields) < 3 {
|
|
if len(fields) == 2 && fields[0] == "Total" {
|
|
// skip total line
|
|
continue
|
|
} else {
|
|
return fmt.Errorf("invalid line found while parsing %s: %s", path, sc.Text())
|
|
}
|
|
}
|
|
major, err := strconv.ParseUint(fields[0], 10, 64)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
minor, err := strconv.ParseUint(fields[1], 10, 64)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
op := ""
|
|
valueField := 2
|
|
if len(fields) == 4 {
|
|
op = fields[2]
|
|
valueField = 3
|
|
}
|
|
v, err := strconv.ParseUint(fields[valueField], 10, 64)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
*entry = append(*entry, &v1.BlkIOEntry{
|
|
Device: devices[deviceKey{major, minor}],
|
|
Major: major,
|
|
Minor: minor,
|
|
Op: op,
|
|
Value: v,
|
|
})
|
|
}
|
|
return sc.Err()
|
|
}
|
|
|
|
func createBlkioSettings(blkio *specs.LinuxBlockIO) []blkioSettings {
|
|
settings := []blkioSettings{}
|
|
|
|
if blkio.Weight != nil {
|
|
settings = append(settings,
|
|
blkioSettings{
|
|
name: "weight",
|
|
value: blkio.Weight,
|
|
format: uintf,
|
|
})
|
|
}
|
|
if blkio.LeafWeight != nil {
|
|
settings = append(settings,
|
|
blkioSettings{
|
|
name: "leaf_weight",
|
|
value: blkio.LeafWeight,
|
|
format: uintf,
|
|
})
|
|
}
|
|
for _, wd := range blkio.WeightDevice {
|
|
if wd.Weight != nil {
|
|
settings = append(settings,
|
|
blkioSettings{
|
|
name: "weight_device",
|
|
value: wd,
|
|
format: weightdev,
|
|
})
|
|
}
|
|
if wd.LeafWeight != nil {
|
|
settings = append(settings,
|
|
blkioSettings{
|
|
name: "leaf_weight_device",
|
|
value: wd,
|
|
format: weightleafdev,
|
|
})
|
|
}
|
|
}
|
|
for _, t := range []struct {
|
|
name string
|
|
list []specs.LinuxThrottleDevice
|
|
}{
|
|
{
|
|
name: "throttle.read_bps_device",
|
|
list: blkio.ThrottleReadBpsDevice,
|
|
},
|
|
{
|
|
name: "throttle.read_iops_device",
|
|
list: blkio.ThrottleReadIOPSDevice,
|
|
},
|
|
{
|
|
name: "throttle.write_bps_device",
|
|
list: blkio.ThrottleWriteBpsDevice,
|
|
},
|
|
{
|
|
name: "throttle.write_iops_device",
|
|
list: blkio.ThrottleWriteIOPSDevice,
|
|
},
|
|
} {
|
|
for _, td := range t.list {
|
|
settings = append(settings, blkioSettings{
|
|
name: t.name,
|
|
value: td,
|
|
format: throttleddev,
|
|
})
|
|
}
|
|
}
|
|
return settings
|
|
}
|
|
|
|
type blkioSettings struct {
|
|
name string
|
|
value interface{}
|
|
format func(v interface{}) []byte
|
|
}
|
|
|
|
type blkioStatSettings struct {
|
|
name string
|
|
entry *[]*v1.BlkIOEntry
|
|
}
|
|
|
|
func uintf(v interface{}) []byte {
|
|
return []byte(strconv.FormatUint(uint64(*v.(*uint16)), 10))
|
|
}
|
|
|
|
func weightdev(v interface{}) []byte {
|
|
wd := v.(specs.LinuxWeightDevice)
|
|
return []byte(fmt.Sprintf("%d:%d %d", wd.Major, wd.Minor, *wd.Weight))
|
|
}
|
|
|
|
func weightleafdev(v interface{}) []byte {
|
|
wd := v.(specs.LinuxWeightDevice)
|
|
return []byte(fmt.Sprintf("%d:%d %d", wd.Major, wd.Minor, *wd.LeafWeight))
|
|
}
|
|
|
|
func throttleddev(v interface{}) []byte {
|
|
td := v.(specs.LinuxThrottleDevice)
|
|
return []byte(fmt.Sprintf("%d:%d %d", td.Major, td.Minor, td.Rate))
|
|
}
|
|
|
|
func splitBlkIOStatLine(r rune) bool {
|
|
return r == ' ' || r == ':'
|
|
}
|
|
|
|
type deviceKey struct {
|
|
major, minor uint64
|
|
}
|
|
|
|
// getDevices makes a best effort attempt to read all the devices into a map
|
|
// keyed by major and minor number. Since devices may be mapped multiple times,
|
|
// we err on taking the first occurrence.
|
|
func getDevices(r io.Reader) (map[deviceKey]string, error) {
|
|
|
|
var (
|
|
s = bufio.NewScanner(r)
|
|
devices = make(map[deviceKey]string)
|
|
)
|
|
for i := 0; s.Scan(); i++ {
|
|
if i < 2 {
|
|
continue
|
|
}
|
|
fields := strings.Fields(s.Text())
|
|
major, err := strconv.Atoi(fields[0])
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
minor, err := strconv.Atoi(fields[1])
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
key := deviceKey{
|
|
major: uint64(major),
|
|
minor: uint64(minor),
|
|
}
|
|
if _, ok := devices[key]; ok {
|
|
continue
|
|
}
|
|
devices[key] = filepath.Join("/dev", fields[3])
|
|
}
|
|
return devices, s.Err()
|
|
}
|