mirror of
https://github.com/VictoriaMetrics/VictoriaMetrics.git
synced 2024-12-11 14:53:49 +00:00
7f4fb34182
It is better developing vmctl tool in VictoriaMetrics repository, so it could be released together with the rest of vmutils tools such as vmalert, vmagent, vmbackup, vmrestore and vmauth.
210 lines
7.7 KiB
Go
210 lines
7.7 KiB
Go
// 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 (
|
|
"fmt"
|
|
"io/ioutil"
|
|
"os"
|
|
"path/filepath"
|
|
"strings"
|
|
|
|
"github.com/prometheus/procfs/internal/util"
|
|
)
|
|
|
|
// The VM interface is described at
|
|
// https://www.kernel.org/doc/Documentation/sysctl/vm.txt
|
|
// Each setting is exposed as a single file.
|
|
// Each file contains one line with a single numerical value, except lowmem_reserve_ratio which holds an array
|
|
// and numa_zonelist_order (deprecated) which is a string
|
|
type VM struct {
|
|
AdminReserveKbytes *int64 // /proc/sys/vm/admin_reserve_kbytes
|
|
BlockDump *int64 // /proc/sys/vm/block_dump
|
|
CompactUnevictableAllowed *int64 // /proc/sys/vm/compact_unevictable_allowed
|
|
DirtyBackgroundBytes *int64 // /proc/sys/vm/dirty_background_bytes
|
|
DirtyBackgroundRatio *int64 // /proc/sys/vm/dirty_background_ratio
|
|
DirtyBytes *int64 // /proc/sys/vm/dirty_bytes
|
|
DirtyExpireCentisecs *int64 // /proc/sys/vm/dirty_expire_centisecs
|
|
DirtyRatio *int64 // /proc/sys/vm/dirty_ratio
|
|
DirtytimeExpireSeconds *int64 // /proc/sys/vm/dirtytime_expire_seconds
|
|
DirtyWritebackCentisecs *int64 // /proc/sys/vm/dirty_writeback_centisecs
|
|
DropCaches *int64 // /proc/sys/vm/drop_caches
|
|
ExtfragThreshold *int64 // /proc/sys/vm/extfrag_threshold
|
|
HugetlbShmGroup *int64 // /proc/sys/vm/hugetlb_shm_group
|
|
LaptopMode *int64 // /proc/sys/vm/laptop_mode
|
|
LegacyVaLayout *int64 // /proc/sys/vm/legacy_va_layout
|
|
LowmemReserveRatio []*int64 // /proc/sys/vm/lowmem_reserve_ratio
|
|
MaxMapCount *int64 // /proc/sys/vm/max_map_count
|
|
MemoryFailureEarlyKill *int64 // /proc/sys/vm/memory_failure_early_kill
|
|
MemoryFailureRecovery *int64 // /proc/sys/vm/memory_failure_recovery
|
|
MinFreeKbytes *int64 // /proc/sys/vm/min_free_kbytes
|
|
MinSlabRatio *int64 // /proc/sys/vm/min_slab_ratio
|
|
MinUnmappedRatio *int64 // /proc/sys/vm/min_unmapped_ratio
|
|
MmapMinAddr *int64 // /proc/sys/vm/mmap_min_addr
|
|
NrHugepages *int64 // /proc/sys/vm/nr_hugepages
|
|
NrHugepagesMempolicy *int64 // /proc/sys/vm/nr_hugepages_mempolicy
|
|
NrOvercommitHugepages *int64 // /proc/sys/vm/nr_overcommit_hugepages
|
|
NumaStat *int64 // /proc/sys/vm/numa_stat
|
|
NumaZonelistOrder string // /proc/sys/vm/numa_zonelist_order
|
|
OomDumpTasks *int64 // /proc/sys/vm/oom_dump_tasks
|
|
OomKillAllocatingTask *int64 // /proc/sys/vm/oom_kill_allocating_task
|
|
OvercommitKbytes *int64 // /proc/sys/vm/overcommit_kbytes
|
|
OvercommitMemory *int64 // /proc/sys/vm/overcommit_memory
|
|
OvercommitRatio *int64 // /proc/sys/vm/overcommit_ratio
|
|
PageCluster *int64 // /proc/sys/vm/page-cluster
|
|
PanicOnOom *int64 // /proc/sys/vm/panic_on_oom
|
|
PercpuPagelistFraction *int64 // /proc/sys/vm/percpu_pagelist_fraction
|
|
StatInterval *int64 // /proc/sys/vm/stat_interval
|
|
Swappiness *int64 // /proc/sys/vm/swappiness
|
|
UserReserveKbytes *int64 // /proc/sys/vm/user_reserve_kbytes
|
|
VfsCachePressure *int64 // /proc/sys/vm/vfs_cache_pressure
|
|
WatermarkBoostFactor *int64 // /proc/sys/vm/watermark_boost_factor
|
|
WatermarkScaleFactor *int64 // /proc/sys/vm/watermark_scale_factor
|
|
ZoneReclaimMode *int64 // /proc/sys/vm/zone_reclaim_mode
|
|
}
|
|
|
|
// VM reads the VM statistics from the specified `proc` filesystem.
|
|
func (fs FS) VM() (*VM, error) {
|
|
path := fs.proc.Path("sys/vm")
|
|
file, err := os.Stat(path)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
if !file.Mode().IsDir() {
|
|
return nil, fmt.Errorf("%s is not a directory", path)
|
|
}
|
|
|
|
files, err := ioutil.ReadDir(path)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
var vm VM
|
|
for _, f := range files {
|
|
if f.IsDir() {
|
|
continue
|
|
}
|
|
|
|
name := filepath.Join(path, f.Name())
|
|
// ignore errors on read, as there are some write only
|
|
// in /proc/sys/vm
|
|
value, err := util.SysReadFile(name)
|
|
if err != nil {
|
|
continue
|
|
}
|
|
vp := util.NewValueParser(value)
|
|
|
|
switch f.Name() {
|
|
case "admin_reserve_kbytes":
|
|
vm.AdminReserveKbytes = vp.PInt64()
|
|
case "block_dump":
|
|
vm.BlockDump = vp.PInt64()
|
|
case "compact_unevictable_allowed":
|
|
vm.CompactUnevictableAllowed = vp.PInt64()
|
|
case "dirty_background_bytes":
|
|
vm.DirtyBackgroundBytes = vp.PInt64()
|
|
case "dirty_background_ratio":
|
|
vm.DirtyBackgroundRatio = vp.PInt64()
|
|
case "dirty_bytes":
|
|
vm.DirtyBytes = vp.PInt64()
|
|
case "dirty_expire_centisecs":
|
|
vm.DirtyExpireCentisecs = vp.PInt64()
|
|
case "dirty_ratio":
|
|
vm.DirtyRatio = vp.PInt64()
|
|
case "dirtytime_expire_seconds":
|
|
vm.DirtytimeExpireSeconds = vp.PInt64()
|
|
case "dirty_writeback_centisecs":
|
|
vm.DirtyWritebackCentisecs = vp.PInt64()
|
|
case "drop_caches":
|
|
vm.DropCaches = vp.PInt64()
|
|
case "extfrag_threshold":
|
|
vm.ExtfragThreshold = vp.PInt64()
|
|
case "hugetlb_shm_group":
|
|
vm.HugetlbShmGroup = vp.PInt64()
|
|
case "laptop_mode":
|
|
vm.LaptopMode = vp.PInt64()
|
|
case "legacy_va_layout":
|
|
vm.LegacyVaLayout = vp.PInt64()
|
|
case "lowmem_reserve_ratio":
|
|
stringSlice := strings.Fields(value)
|
|
pint64Slice := make([]*int64, 0, len(stringSlice))
|
|
for _, value := range stringSlice {
|
|
vp := util.NewValueParser(value)
|
|
pint64Slice = append(pint64Slice, vp.PInt64())
|
|
}
|
|
vm.LowmemReserveRatio = pint64Slice
|
|
case "max_map_count":
|
|
vm.MaxMapCount = vp.PInt64()
|
|
case "memory_failure_early_kill":
|
|
vm.MemoryFailureEarlyKill = vp.PInt64()
|
|
case "memory_failure_recovery":
|
|
vm.MemoryFailureRecovery = vp.PInt64()
|
|
case "min_free_kbytes":
|
|
vm.MinFreeKbytes = vp.PInt64()
|
|
case "min_slab_ratio":
|
|
vm.MinSlabRatio = vp.PInt64()
|
|
case "min_unmapped_ratio":
|
|
vm.MinUnmappedRatio = vp.PInt64()
|
|
case "mmap_min_addr":
|
|
vm.MmapMinAddr = vp.PInt64()
|
|
case "nr_hugepages":
|
|
vm.NrHugepages = vp.PInt64()
|
|
case "nr_hugepages_mempolicy":
|
|
vm.NrHugepagesMempolicy = vp.PInt64()
|
|
case "nr_overcommit_hugepages":
|
|
vm.NrOvercommitHugepages = vp.PInt64()
|
|
case "numa_stat":
|
|
vm.NumaStat = vp.PInt64()
|
|
case "numa_zonelist_order":
|
|
vm.NumaZonelistOrder = value
|
|
case "oom_dump_tasks":
|
|
vm.OomDumpTasks = vp.PInt64()
|
|
case "oom_kill_allocating_task":
|
|
vm.OomKillAllocatingTask = vp.PInt64()
|
|
case "overcommit_kbytes":
|
|
vm.OvercommitKbytes = vp.PInt64()
|
|
case "overcommit_memory":
|
|
vm.OvercommitMemory = vp.PInt64()
|
|
case "overcommit_ratio":
|
|
vm.OvercommitRatio = vp.PInt64()
|
|
case "page-cluster":
|
|
vm.PageCluster = vp.PInt64()
|
|
case "panic_on_oom":
|
|
vm.PanicOnOom = vp.PInt64()
|
|
case "percpu_pagelist_fraction":
|
|
vm.PercpuPagelistFraction = vp.PInt64()
|
|
case "stat_interval":
|
|
vm.StatInterval = vp.PInt64()
|
|
case "swappiness":
|
|
vm.Swappiness = vp.PInt64()
|
|
case "user_reserve_kbytes":
|
|
vm.UserReserveKbytes = vp.PInt64()
|
|
case "vfs_cache_pressure":
|
|
vm.VfsCachePressure = vp.PInt64()
|
|
case "watermark_boost_factor":
|
|
vm.WatermarkBoostFactor = vp.PInt64()
|
|
case "watermark_scale_factor":
|
|
vm.WatermarkScaleFactor = vp.PInt64()
|
|
case "zone_reclaim_mode":
|
|
vm.ZoneReclaimMode = vp.PInt64()
|
|
}
|
|
if err := vp.Err(); err != nil {
|
|
return nil, err
|
|
}
|
|
}
|
|
|
|
return &vm, nil
|
|
}
|