// Get information about system memory.
func Get() (Memory, error) {
m := Memory{}
o, err := common.LoadFileFields("/proc/meminfo", ":", []string{
"MemTotal",
})
if err != nil {
return Memory{}, err
}
m.TotalGB, err = strconv.Atoi(strings.TrimRight(o["MemTotal"], " kB"))
if err != nil {
return Memory{}, err
}
m.TotalGB = m.TotalGB / 1024 / 1024
return m, nil
}
func (m *memory) ForceUpdate() error {
m.cache.LastUpdated = time.Now()
m.cache.FromCache = false
o, err := common.LoadFileFields("/proc/meminfo", ":", []string{
"MemTotal",
"MemFree",
"MemAvailable",
"Buffers",
"Cached",
"SwapCached",
"Active",
"Inactive",
"Active(anon)",
"Inactive(anon)",
"Active(file)",
"Inactive(file)",
"Unevictable",
"Mlocked",
"SwapTotal",
"SwapFree",
"Dirty",
"Writeback",
"AnonPages",
"Mapped",
"Shmem",
"Slab",
"SReclaimable",
"SUnreclaim",
"KernelStack",
"PageTables",
"NFS_Unstable",
"Bounce",
"WritebackTmp",
"CommitLimit",
"Committed_AS",
"VmallocTotal",
"VmallocUsed",
"VmallocChunk",
"HardwareCorrupted",
"AnonHugePages",
"HugePages_Total",
"HugePages_Free",
"HugePages_Rsvd",
"HugePages_Surp",
"Hugepagesize",
"DirectMap4k",
"DirectMap2M",
"DirectMap1G",
})
if err != nil {
return err
}
// MemTotal
m.data.TotalKB, err = strconv.Atoi(strings.TrimRight(o["MemTotal"], " kB"))
if err != nil {
return fmt.Errorf("failed parsing field: %s error: %s", "MemTotal", err.Error())
}
m.data.TotalGB = m.data.TotalKB / 1024 / 1024
// MemFree
m.data.FreeKB, err = strconv.Atoi(strings.TrimRight(o["MemFree"], " kB"))
if err != nil {
return fmt.Errorf("failed parsing field: %s error: %s", "MemFree", err.Error())
}
m.data.FreeGB = m.data.FreeKB / 1024 / 1024
// MemAvailable
m.data.AvailableKB, err = strconv.Atoi(strings.TrimRight(o["MemAvailable"], " kB"))
if err != nil {
return fmt.Errorf("failed parsing field: %s error: %s", "MemAvailable", err.Error())
}
m.data.AvailableGB = m.data.AvailableKB / 1024 / 1024
// Buffers
m.data.BuffersKB, err = strconv.Atoi(strings.TrimRight(o["Buffers"], " kB"))
if err != nil {
return fmt.Errorf("failed parsing field: %s error: %s", "Buffers", err.Error())
}
m.data.BuffersGB = m.data.BuffersKB / 1024 / 1024
// Cached
m.data.CachedKB, err = strconv.Atoi(strings.TrimRight(o["Cached"], " kB"))
if err != nil {
return fmt.Errorf("failed parsing field: %s error: %s", "Cached", err.Error())
}
m.data.CachedGB = m.data.CachedKB / 1024 / 1024
// SwapCached
m.data.SwapCachedKB, err = strconv.Atoi(strings.TrimRight(o["SwapCached"], " kB"))
if err != nil {
return fmt.Errorf("failed parsing field: %s error: %s", "SwapCached", err.Error())
}
m.data.SwapCachedGB = m.data.SwapCachedKB / 1024 / 1024
// Active
m.data.ActiveKB, err = strconv.Atoi(strings.TrimRight(o["Active"], " kB"))
if err != nil {
return fmt.Errorf("failed parsing field: %s error: %s", "Active", err.Error())
}
m.data.ActiveGB = m.data.ActiveKB / 1024 / 1024
// Inactive
m.data.InactiveKB, err = strconv.Atoi(strings.TrimRight(o["Inactive"], " kB"))
if err != nil {
return fmt.Errorf("failed parsing field: %s error: %s", "Inactive", err.Error())
}
m.data.InactiveGB = m.data.InactiveKB / 1024 / 1024
// Active(anon)
m.data.ActiveAnonKB, err = strconv.Atoi(strings.TrimRight(o["Active(anon)"], " kB"))
if err != nil {
return fmt.Errorf("failed parsing field: %s error: %s", "Active(anon)", err.Error())
}
m.data.ActiveAnonGB = m.data.ActiveAnonKB / 1024 / 1024
// Inactive(anon)
m.data.InactiveAnonKB, err = strconv.Atoi(strings.TrimRight(o["Inactive(anon)"], " kB"))
if err != nil {
return fmt.Errorf("failed parsing field: %s error: %s", "Inactive(anon)", err.Error())
}
m.data.InactiveAnonGB = m.data.InactiveAnonKB / 1024 / 1024
// Active(file)
m.data.ActiveFileKB, err = strconv.Atoi(strings.TrimRight(o["Active(file)"], " kB"))
if err != nil {
return fmt.Errorf("failed parsing field: %s error: %s", "Active(file)", err.Error())
}
m.data.ActiveFileGB = m.data.ActiveFileKB / 1024 / 1024
// Inactive(file)
m.data.InactiveFileKB, err = strconv.Atoi(strings.TrimRight(o["Inactive(file)"], " kB"))
if err != nil {
return fmt.Errorf("failed parsing field: %s error: %s", "Inactive(file)", err.Error())
}
m.data.InactiveFileGB = m.data.InactiveFileKB / 1024 / 1024
// Unevictable
m.data.UnevictableKB, err = strconv.Atoi(strings.TrimRight(o["Unevictable"], " kB"))
if err != nil {
return fmt.Errorf("failed parsing field: %s error: %s", "Unevictable", err.Error())
}
m.data.UnevictableGB = m.data.UnevictableKB / 1024 / 1024
// Mlocked
m.data.MLockedKB, err = strconv.Atoi(strings.TrimRight(o["Mlocked"], " kB"))
if err != nil {
return fmt.Errorf("failed parsing field: %s error: %s", "Mlocked", err.Error())
}
m.data.MLockedGB = m.data.MLockedKB / 1024 / 1024
// SwapTotal
m.data.SwapTotalKB, err = strconv.Atoi(strings.TrimRight(o["SwapTotal"], " kB"))
if err != nil {
return fmt.Errorf("failed parsing field: %s error: %s", "SwapTotal", err.Error())
}
m.data.SwapTotalGB = m.data.SwapTotalKB / 1024 / 1024
// SwapFree
m.data.SwapFreeKB, err = strconv.Atoi(strings.TrimRight(o["SwapFree"], " kB"))
if err != nil {
return fmt.Errorf("failed parsing field: %s error: %s", "SwapFree", err.Error())
}
m.data.SwapFreeGB = m.data.SwapFreeKB / 1024 / 1024
// Dirty
m.data.DirtyKB, err = strconv.Atoi(strings.TrimRight(o["Dirty"], " kB"))
if err != nil {
return fmt.Errorf("failed parsing field: %s error: %s", "Dirty", err.Error())
}
m.data.DirtyGB = m.data.DirtyKB / 1024 / 1024
// Writeback
m.data.WritebackKB, err = strconv.Atoi(strings.TrimRight(o["Writeback"], " kB"))
if err != nil {
return fmt.Errorf("failed parsing field: %s error: %s", "Writeback", err.Error())
}
m.data.WritebackGB = m.data.WritebackKB / 1024 / 1024
// AnonPages
m.data.AnonPagesKB, err = strconv.Atoi(strings.TrimRight(o["AnonPages"], " kB"))
if err != nil {
return fmt.Errorf("failed parsing field: %s error: %s", "AnonPages", err.Error())
}
m.data.AnonPagesGB = m.data.AnonPagesKB / 1024 / 1024
// Mapped
m.data.MappedKB, err = strconv.Atoi(strings.TrimRight(o["Mapped"], " kB"))
if err != nil {
return fmt.Errorf("failed parsing field: %s error: %s", "Mapped", err.Error())
}
m.data.MappedGB = m.data.MappedKB / 1024 / 1024
// Shmem
m.data.ShmemKB, err = strconv.Atoi(strings.TrimRight(o["Shmem"], " kB"))
if err != nil {
return fmt.Errorf("failed parsing field: %s error: %s", "Shmem", err.Error())
}
m.data.ShmemGB = m.data.ShmemKB / 1024 / 1024
// Slab
m.data.SlabKB, err = strconv.Atoi(strings.TrimRight(o["Slab"], " kB"))
if err != nil {
return fmt.Errorf("failed parsing field: %s error: %s", "Slab", err.Error())
}
m.data.SlabGB = m.data.SlabKB / 1024 / 1024
// SReclaimable
m.data.SReclaimableKB, err = strconv.Atoi(strings.TrimRight(o["SReclaimable"], " kB"))
if err != nil {
return fmt.Errorf("failed parsing field: %s error: %s", "SReclaimable", err.Error())
}
m.data.SReclaimableGB = m.data.SReclaimableKB / 1024 / 1024
// SUnreclaim
m.data.SUnreclaimKB, err = strconv.Atoi(strings.TrimRight(o["SUnreclaim"], " kB"))
if err != nil {
return fmt.Errorf("failed parsing field: %s error: %s", "SUnreclaim", err.Error())
}
m.data.SUnreclaimGB = m.data.SUnreclaimKB / 1024 / 1024
// KernelStack
m.data.KernelStackKB, err = strconv.Atoi(strings.TrimRight(o["KernelStack"], " kB"))
if err != nil {
return fmt.Errorf("failed parsing field: %s error: %s", "KernelStack", err.Error())
}
m.data.KernelStackGB = m.data.KernelStackKB / 1024 / 1024
// PageTables
m.data.PageTablesKB, err = strconv.Atoi(strings.TrimRight(o["PageTables"], " kB"))
if err != nil {
return fmt.Errorf("failed parsing field: %s error: %s", "PageTables", err.Error())
}
m.data.PageTablesGB = m.data.PageTablesKB / 1024 / 1024
// NFS_Unstable
m.data.NFSUnstableKB, err = strconv.Atoi(strings.TrimRight(o["NFS_Unstable"], " kB"))
if err != nil {
return fmt.Errorf("failed parsing field: %s error: %s", "NFS_Unstable", err.Error())
}
m.data.NFSUnstableGB = m.data.NFSUnstableKB / 1024 / 1024
// Bounce
m.data.BounceKB, err = strconv.Atoi(strings.TrimRight(o["Bounce"], " kB"))
if err != nil {
return fmt.Errorf("failed parsing field: %s error: %s", "Bounce", err.Error())
}
m.data.BounceGB = m.data.BounceKB / 1024 / 1024
// WritebackTmp
m.data.WritebackTmpKB, err = strconv.Atoi(strings.TrimRight(o["WritebackTmp"], " kB"))
if err != nil {
return fmt.Errorf("failed parsing field: %s error: %s", "WritebackTmp", err.Error())
}
m.data.WritebackTmpGB = m.data.WritebackTmpKB / 1024 / 1024
// CommitLimit
m.data.CommitLimitKB, err = strconv.Atoi(strings.TrimRight(o["CommitLimit"], " kB"))
if err != nil {
return fmt.Errorf("failed parsing field: %s error: %s", "CommitLimit", err.Error())
}
m.data.CommitLimitGB = m.data.CommitLimitKB / 1024 / 1024
// Committed_AS
m.data.CommittedASKB, err = strconv.Atoi(strings.TrimRight(o["Committed_AS"], " kB"))
if err != nil {
return fmt.Errorf("failed parsing field: %s error: %s", "Committed_AS", err.Error())
}
m.data.CommittedASGB = m.data.CommittedASKB / 1024 / 1024
// VmallocTotal
m.data.VmallocTotalKB, err = strconv.Atoi(strings.TrimRight(o["VmallocTotal"], " kB"))
if err != nil {
return fmt.Errorf("failed parsing field: %s error: %s", "VmallocTotal", err.Error())
}
m.data.VmallocTotalGB = m.data.VmallocTotalKB / 1024 / 1024
// VmallocUsed
m.data.VmallocUsedKB, err = strconv.Atoi(strings.TrimRight(o["VmallocUsed"], " kB"))
if err != nil {
return fmt.Errorf("failed parsing field: %s error: %s", "VmallocUsed", err.Error())
}
m.data.VmallocUsedGB = m.data.VmallocUsedKB / 1024 / 1024
// VmallocChunk
m.data.VmallocChunkKB, err = strconv.Atoi(strings.TrimRight(o["VmallocChunk"], " kB"))
if err != nil {
return fmt.Errorf("failed parsing field: %s error: %s", "VmallocChunk", err.Error())
}
m.data.VmallocChunkGB = m.data.VmallocChunkKB / 1024 / 1024
// HardwareCorrupted
m.data.HardwareCorruptedKB, err = strconv.Atoi(strings.TrimRight(o["HardwareCorrupted"], " kB"))
if err != nil {
return fmt.Errorf("failed parsing field: %s error: %s", "HardwareCorrupted", err.Error())
}
m.data.HardwareCorruptedGB = m.data.HardwareCorruptedKB / 1024 / 1024
// AnonHugePages
m.data.AnonHugePagesKB, err = strconv.Atoi(strings.TrimRight(o["AnonHugePages"], " kB"))
if err != nil {
return fmt.Errorf("failed parsing field: %s error: %s", "AnonHugePages", err.Error())
}
m.data.AnonHugePagesGB = m.data.AnonHugePagesKB / 1024 / 1024
// HugePages_Total
m.data.HugePagesTot, err = strconv.Atoi(o["HugePages_Total"])
if err != nil {
return fmt.Errorf("failed parsing field: %s error: %s", "HugePages_Total", err.Error())
}
// HugePages_Free
m.data.HugePagesFree, err = strconv.Atoi(o["HugePages_Free"])
if err != nil {
return fmt.Errorf("failed parsing field: %s error: %s", "HugePages_Free", err.Error())
}
// HugePages_Rsvd
m.data.HugePagesRsvd, err = strconv.Atoi(o["HugePages_Rsvd"])
if err != nil {
return fmt.Errorf("failed parsing field: %s error: %s", "HugePages_Rsvd", err.Error())
}
// Hugepagesize
m.data.HugePageSizeKB, err = strconv.Atoi(strings.TrimRight(o["Hugepagesize"], " kB"))
if err != nil {
return fmt.Errorf("failed parsing field: %s error: %s", "Hugepagesize", err.Error())
}
// DirectMap4k
m.data.DirectMap4kKB, err = strconv.Atoi(strings.TrimRight(o["DirectMap4k"], " kB"))
if err != nil {
return fmt.Errorf("failed parsing field: %s error: %s", "DirectMap4k", err.Error())
}
// DirectMap2M
m.data.DirectMap2MKB, err = strconv.Atoi(strings.TrimRight(o["DirectMap2M"], " kB"))
if err != nil {
return fmt.Errorf("failed parsing field: %s error: %s", "DirectMap2M", err.Error())
}
// DirectMap1G
m.data.DirectMap1GKB, err = strconv.Atoi(strings.TrimRight(o["DirectMap1G"], " kB"))
if err != nil {
return fmt.Errorf("failed parsing field: %s error: %s", "DirectMap1G", err.Error())
}
return nil
}