summaryrefslogtreecommitdiff
path: root/vendor/github.com/prometheus/procfs/schedstat.go
diff options
context:
space:
mode:
authorPaul Holzinger <pholzing@redhat.com>2022-09-08 15:32:44 +0200
committerPaul Holzinger <pholzing@redhat.com>2022-09-09 11:58:20 +0200
commiteb28a1c08469d56494006d0f2c64933ab7078d01 (patch)
treedbacf86cf194955f34f09ec56d2df284321e2ae7 /vendor/github.com/prometheus/procfs/schedstat.go
parent7e2f002b0751c2c24e9c243495cbc313d0c3c103 (diff)
downloadpodman-eb28a1c08469d56494006d0f2c64933ab7078d01.tar.gz
podman-eb28a1c08469d56494006d0f2c64933ab7078d01.tar.bz2
podman-eb28a1c08469d56494006d0f2c64933ab7078d01.zip
update buildah and c/common to latest
also includes bumps for c/storage and c/image Signed-off-by: Paul Holzinger <pholzing@redhat.com>
Diffstat (limited to 'vendor/github.com/prometheus/procfs/schedstat.go')
-rw-r--r--vendor/github.com/prometheus/procfs/schedstat.go121
1 files changed, 0 insertions, 121 deletions
diff --git a/vendor/github.com/prometheus/procfs/schedstat.go b/vendor/github.com/prometheus/procfs/schedstat.go
deleted file mode 100644
index 28228164e..000000000
--- a/vendor/github.com/prometheus/procfs/schedstat.go
+++ /dev/null
@@ -1,121 +0,0 @@
-// Copyright 2019 The Prometheus 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 procfs
-
-import (
- "bufio"
- "errors"
- "os"
- "regexp"
- "strconv"
-)
-
-var (
- cpuLineRE = regexp.MustCompile(`cpu(\d+) (\d+) (\d+) (\d+) (\d+) (\d+) (\d+) (\d+) (\d+) (\d+)`)
- procLineRE = regexp.MustCompile(`(\d+) (\d+) (\d+)`)
-)
-
-// Schedstat contains scheduler statistics from /proc/schedstat
-//
-// See
-// https://www.kernel.org/doc/Documentation/scheduler/sched-stats.txt
-// for a detailed description of what these numbers mean.
-//
-// Note the current kernel documentation claims some of the time units are in
-// jiffies when they are actually in nanoseconds since 2.6.23 with the
-// introduction of CFS. A fix to the documentation is pending. See
-// https://lore.kernel.org/patchwork/project/lkml/list/?series=403473
-type Schedstat struct {
- CPUs []*SchedstatCPU
-}
-
-// SchedstatCPU contains the values from one "cpu<N>" line
-type SchedstatCPU struct {
- CPUNum string
-
- RunningNanoseconds uint64
- WaitingNanoseconds uint64
- RunTimeslices uint64
-}
-
-// ProcSchedstat contains the values from /proc/<pid>/schedstat
-type ProcSchedstat struct {
- RunningNanoseconds uint64
- WaitingNanoseconds uint64
- RunTimeslices uint64
-}
-
-// Schedstat reads data from /proc/schedstat
-func (fs FS) Schedstat() (*Schedstat, error) {
- file, err := os.Open(fs.proc.Path("schedstat"))
- if err != nil {
- return nil, err
- }
- defer file.Close()
-
- stats := &Schedstat{}
- scanner := bufio.NewScanner(file)
-
- for scanner.Scan() {
- match := cpuLineRE.FindStringSubmatch(scanner.Text())
- if match != nil {
- cpu := &SchedstatCPU{}
- cpu.CPUNum = match[1]
-
- cpu.RunningNanoseconds, err = strconv.ParseUint(match[8], 10, 64)
- if err != nil {
- continue
- }
-
- cpu.WaitingNanoseconds, err = strconv.ParseUint(match[9], 10, 64)
- if err != nil {
- continue
- }
-
- cpu.RunTimeslices, err = strconv.ParseUint(match[10], 10, 64)
- if err != nil {
- continue
- }
-
- stats.CPUs = append(stats.CPUs, cpu)
- }
- }
-
- return stats, nil
-}
-
-func parseProcSchedstat(contents string) (ProcSchedstat, error) {
- var (
- stats ProcSchedstat
- err error
- )
- match := procLineRE.FindStringSubmatch(contents)
-
- if match != nil {
- stats.RunningNanoseconds, err = strconv.ParseUint(match[1], 10, 64)
- if err != nil {
- return stats, err
- }
-
- stats.WaitingNanoseconds, err = strconv.ParseUint(match[2], 10, 64)
- if err != nil {
- return stats, err
- }
-
- stats.RunTimeslices, err = strconv.ParseUint(match[3], 10, 64)
- return stats, err
- }
-
- return stats, errors.New("could not parse schedstat")
-}