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os: expose SizeStoredInPagingFiles, TotalVirtualMemorySize, TotalVisibleMemorySize

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This commit is contained in:
Martin Lindhe
2016-08-26 09:29:03 +02:00
parent dac70ad805
commit 03a1f294ab
1 changed files with 64 additions and 15 deletions
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79
collectors/os.go
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@@ -1,4 +1,5 @@
// returns data points from Win32_OperatingSystem // returns data points from Win32_OperatingSystem
// https://msdn.microsoft.com/en-us/library/aa394239(v=vs.85).aspx
package collectors package collectors
@@ -11,11 +12,14 @@ import (
// A OSCollector is a Prometheus collector for WMI OperatingSystem metrics // A OSCollector is a Prometheus collector for WMI OperatingSystem metrics
type OSCollector struct { type OSCollector struct {
FreePhysicalMemory *prometheus.Desc FreePhysicalMemory *prometheus.Desc
FreeSpaceInPagingFiles *prometheus.Desc FreeSpaceInPagingFiles *prometheus.Desc
FreeVirtualMemory *prometheus.Desc FreeVirtualMemory *prometheus.Desc
NumberOfProcesses *prometheus.Desc NumberOfProcesses *prometheus.Desc
NumberOfUsers *prometheus.Desc NumberOfUsers *prometheus.Desc
SizeStoredInPagingFiles *prometheus.Desc
TotalVirtualMemorySize *prometheus.Desc
TotalVisibleMemorySize *prometheus.Desc
} }
// NewOSCollector ... // NewOSCollector ...
@@ -24,35 +28,56 @@ func NewOSCollector() *OSCollector {
return &OSCollector{ return &OSCollector{
FreePhysicalMemory: prometheus.NewDesc( FreePhysicalMemory: prometheus.NewDesc(
prometheus.BuildFQName(wmiNamespace, "os", "free_physical_memory"), prometheus.BuildFQName(wmiNamespace, "os", "free_physical_memory"),
"Free physical memory.", "Number, in kilobytes, of physical memory currently unused and available.",
nil, nil,
nil, nil,
), ),
FreeSpaceInPagingFiles: prometheus.NewDesc( FreeSpaceInPagingFiles: prometheus.NewDesc(
prometheus.BuildFQName(wmiNamespace, "os", "free_space_in_paging_files"), prometheus.BuildFQName(wmiNamespace, "os", "free_space_in_paging_files"),
"Free space in paging files.", "Number, in kilobytes, that can be mapped into the operating system paging files without causing any other pages to be swapped out.",
nil, nil,
nil, nil,
), ),
FreeVirtualMemory: prometheus.NewDesc( FreeVirtualMemory: prometheus.NewDesc(
prometheus.BuildFQName(wmiNamespace, "os", "free_virtual_memory"), prometheus.BuildFQName(wmiNamespace, "os", "free_virtual_memory"),
"Free virtual memory.", "Number, in kilobytes, of virtual memory currently unused and available.",
nil, nil,
nil, nil,
), ),
NumberOfProcesses: prometheus.NewDesc( NumberOfProcesses: prometheus.NewDesc(
prometheus.BuildFQName(wmiNamespace, "os", "number_of_processes"), prometheus.BuildFQName(wmiNamespace, "os", "number_of_processes"),
"No. of processes running on the system.", "Number of process contexts currently loaded or running on the operating system.",
nil, nil,
nil, nil,
), ),
NumberOfUsers: prometheus.NewDesc( NumberOfUsers: prometheus.NewDesc(
prometheus.BuildFQName(wmiNamespace, "os", "number_of_users"), prometheus.BuildFQName(wmiNamespace, "os", "number_of_users"),
"No. of users logged in.", "Number of user sessions for which the operating system is storing state information currently.",
nil,
nil,
),
SizeStoredInPagingFiles: prometheus.NewDesc(
prometheus.BuildFQName(wmiNamespace, "os", "size_stored_in_paging_files"),
"Total number of kilobytes that can be stored in the operating system paging files.",
nil,
nil,
),
TotalVirtualMemorySize: prometheus.NewDesc(
prometheus.BuildFQName(wmiNamespace, "os", "total_virtual_memory_size"),
"Number, in kilobytes, of virtual memory.",
nil,
nil,
),
TotalVisibleMemorySize: prometheus.NewDesc(
prometheus.BuildFQName(wmiNamespace, "os", "total_visible_memory_size"),
"Total amount, in kilobytes, of physical memory available to the operating system.",
nil, nil,
nil, nil,
), ),
@@ -77,14 +102,20 @@ func (c *OSCollector) Describe(ch chan<- *prometheus.Desc) {
ch <- c.FreeVirtualMemory ch <- c.FreeVirtualMemory
ch <- c.NumberOfProcesses ch <- c.NumberOfProcesses
ch <- c.NumberOfUsers ch <- c.NumberOfUsers
ch <- c.SizeStoredInPagingFiles
ch <- c.TotalVirtualMemorySize
ch <- c.TotalVisibleMemorySize
} }
type Win32_OperatingSystem struct { type Win32_OperatingSystem struct {
FreePhysicalMemory uint64 FreePhysicalMemory uint64
FreeSpaceInPagingFiles uint64 FreeSpaceInPagingFiles uint64
FreeVirtualMemory uint64 FreeVirtualMemory uint64
NumberOfProcesses uint32 NumberOfProcesses uint32
NumberOfUsers uint32 NumberOfUsers uint32
SizeStoredInPagingFiles uint64
TotalVirtualMemorySize uint64
TotalVisibleMemorySize uint64
} }
func (c *OSCollector) collect(ch chan<- prometheus.Metric) (*prometheus.Desc, error) { func (c *OSCollector) collect(ch chan<- prometheus.Metric) (*prometheus.Desc, error) {
@@ -124,5 +155,23 @@ func (c *OSCollector) collect(ch chan<- prometheus.Metric) (*prometheus.Desc, er
float64(dst[0].NumberOfUsers), float64(dst[0].NumberOfUsers),
) )
ch <- prometheus.MustNewConstMetric(
c.SizeStoredInPagingFiles,
prometheus.GaugeValue,
float64(dst[0].SizeStoredInPagingFiles),
)
ch <- prometheus.MustNewConstMetric(
c.TotalVirtualMemorySize,
prometheus.GaugeValue,
float64(dst[0].TotalVirtualMemorySize),
)
ch <- prometheus.MustNewConstMetric(
c.TotalVisibleMemorySize,
prometheus.GaugeValue,
float64(dst[0].TotalVisibleMemorySize),
)
return nil, nil return nil, nil
} }