diff options
Diffstat (limited to 'vendor/github.com/prometheus/procfs/zoneinfo.go')
| -rw-r--r-- | vendor/github.com/prometheus/procfs/zoneinfo.go | 196 |
1 files changed, 196 insertions, 0 deletions
diff --git a/vendor/github.com/prometheus/procfs/zoneinfo.go b/vendor/github.com/prometheus/procfs/zoneinfo.go new file mode 100644 index 000000000..e941503d5 --- /dev/null +++ b/vendor/github.com/prometheus/procfs/zoneinfo.go @@ -0,0 +1,196 @@ +// 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. + +// +build !windows + +package procfs + +import ( + "bytes" + "fmt" + "io/ioutil" + "regexp" + "strings" + + "github.com/prometheus/procfs/internal/util" +) + +// Zoneinfo holds info parsed from /proc/zoneinfo. +type Zoneinfo struct { + Node string + Zone string + NrFreePages *int64 + Min *int64 + Low *int64 + High *int64 + Scanned *int64 + Spanned *int64 + Present *int64 + Managed *int64 + NrActiveAnon *int64 + NrInactiveAnon *int64 + NrIsolatedAnon *int64 + NrAnonPages *int64 + NrAnonTransparentHugepages *int64 + NrActiveFile *int64 + NrInactiveFile *int64 + NrIsolatedFile *int64 + NrFilePages *int64 + NrSlabReclaimable *int64 + NrSlabUnreclaimable *int64 + NrMlockStack *int64 + NrKernelStack *int64 + NrMapped *int64 + NrDirty *int64 + NrWriteback *int64 + NrUnevictable *int64 + NrShmem *int64 + NrDirtied *int64 + NrWritten *int64 + NumaHit *int64 + NumaMiss *int64 + NumaForeign *int64 + NumaInterleave *int64 + NumaLocal *int64 + NumaOther *int64 + Protection []*int64 +} + +var nodeZoneRE = regexp.MustCompile(`(\d+), zone\s+(\w+)`) + +// Zoneinfo parses an zoneinfo-file (/proc/zoneinfo) and returns a slice of +// structs containing the relevant info. More information available here: +// https://www.kernel.org/doc/Documentation/sysctl/vm.txt +func (fs FS) Zoneinfo() ([]Zoneinfo, error) { + data, err := ioutil.ReadFile(fs.proc.Path("zoneinfo")) + if err != nil { + return nil, fmt.Errorf("error reading zoneinfo %s: %s", fs.proc.Path("zoneinfo"), err) + } + zoneinfo, err := parseZoneinfo(data) + if err != nil { + return nil, fmt.Errorf("error parsing zoneinfo %s: %s", fs.proc.Path("zoneinfo"), err) + } + return zoneinfo, nil +} + +func parseZoneinfo(zoneinfoData []byte) ([]Zoneinfo, error) { + + zoneinfo := []Zoneinfo{} + + zoneinfoBlocks := bytes.Split(zoneinfoData, []byte("\nNode")) + for _, block := range zoneinfoBlocks { + var zoneinfoElement Zoneinfo + lines := strings.Split(string(block), "\n") + for _, line := range lines { + + if nodeZone := nodeZoneRE.FindStringSubmatch(line); nodeZone != nil { + zoneinfoElement.Node = nodeZone[1] + zoneinfoElement.Zone = nodeZone[2] + continue + } + if strings.HasPrefix(strings.TrimSpace(line), "per-node stats") { + zoneinfoElement.Zone = "" + continue + } + parts := strings.Fields(strings.TrimSpace(line)) + if len(parts) < 2 { + continue + } + vp := util.NewValueParser(parts[1]) + switch parts[0] { + case "nr_free_pages": + zoneinfoElement.NrFreePages = vp.PInt64() + case "min": + zoneinfoElement.Min = vp.PInt64() + case "low": + zoneinfoElement.Low = vp.PInt64() + case "high": + zoneinfoElement.High = vp.PInt64() + case "scanned": + zoneinfoElement.Scanned = vp.PInt64() + case "spanned": + zoneinfoElement.Spanned = vp.PInt64() + case "present": + zoneinfoElement.Present = vp.PInt64() + case "managed": + zoneinfoElement.Managed = vp.PInt64() + case "nr_active_anon": + zoneinfoElement.NrActiveAnon = vp.PInt64() + case "nr_inactive_anon": + zoneinfoElement.NrInactiveAnon = vp.PInt64() + case "nr_isolated_anon": + zoneinfoElement.NrIsolatedAnon = vp.PInt64() + case "nr_anon_pages": + zoneinfoElement.NrAnonPages = vp.PInt64() + case "nr_anon_transparent_hugepages": + zoneinfoElement.NrAnonTransparentHugepages = vp.PInt64() + case "nr_active_file": + zoneinfoElement.NrActiveFile = vp.PInt64() + case "nr_inactive_file": + zoneinfoElement.NrInactiveFile = vp.PInt64() + case "nr_isolated_file": + zoneinfoElement.NrIsolatedFile = vp.PInt64() + case "nr_file_pages": + zoneinfoElement.NrFilePages = vp.PInt64() + case "nr_slab_reclaimable": + zoneinfoElement.NrSlabReclaimable = vp.PInt64() + case "nr_slab_unreclaimable": + zoneinfoElement.NrSlabUnreclaimable = vp.PInt64() + case "nr_mlock_stack": + zoneinfoElement.NrMlockStack = vp.PInt64() + case "nr_kernel_stack": + zoneinfoElement.NrKernelStack = vp.PInt64() + case "nr_mapped": + zoneinfoElement.NrMapped = vp.PInt64() + case "nr_dirty": + zoneinfoElement.NrDirty = vp.PInt64() + case "nr_writeback": + zoneinfoElement.NrWriteback = vp.PInt64() + case "nr_unevictable": + zoneinfoElement.NrUnevictable = vp.PInt64() + case "nr_shmem": + zoneinfoElement.NrShmem = vp.PInt64() + case "nr_dirtied": + zoneinfoElement.NrDirtied = vp.PInt64() + case "nr_written": + zoneinfoElement.NrWritten = vp.PInt64() + case "numa_hit": + zoneinfoElement.NumaHit = vp.PInt64() + case "numa_miss": + zoneinfoElement.NumaMiss = vp.PInt64() + case "numa_foreign": + zoneinfoElement.NumaForeign = vp.PInt64() + case "numa_interleave": + zoneinfoElement.NumaInterleave = vp.PInt64() + case "numa_local": + zoneinfoElement.NumaLocal = vp.PInt64() + case "numa_other": + zoneinfoElement.NumaOther = vp.PInt64() + case "protection:": + protectionParts := strings.Split(line, ":") + protectionValues := strings.Replace(protectionParts[1], "(", "", 1) + protectionValues = strings.Replace(protectionValues, ")", "", 1) + protectionValues = strings.TrimSpace(protectionValues) + protectionStringMap := strings.Split(protectionValues, ", ") + val, err := util.ParsePInt64s(protectionStringMap) + if err == nil { + zoneinfoElement.Protection = val + } + } + + } + + zoneinfo = append(zoneinfo, zoneinfoElement) + } + return zoneinfo, nil +} |