windows_exporter/collector/memory.go

503 lines
16 KiB
Go

// returns data points from Win32_PerfRawData_PerfOS_Memory
// <add link to documentation here> - Win32_PerfRawData_PerfOS_Memory class
// +build windows
package collector
import (
"github.com/prometheus/client_golang/prometheus"
"github.com/prometheus/common/log"
)
func init() {
registerCollector("memory", NewMemoryCollector, "Memory")
}
// A MemoryCollector is a Prometheus collector for perflib Memory metrics
type MemoryCollector struct {
AvailableBytes *prometheus.Desc
CacheBytes *prometheus.Desc
CacheBytesPeak *prometheus.Desc
CacheFaultsTotal *prometheus.Desc
CommitLimit *prometheus.Desc
CommittedBytes *prometheus.Desc
DemandZeroFaultsTotal *prometheus.Desc
FreeAndZeroPageListBytes *prometheus.Desc
FreeSystemPageTableEntries *prometheus.Desc
ModifiedPageListBytes *prometheus.Desc
PageFaultsTotal *prometheus.Desc
SwapPageReadsTotal *prometheus.Desc
SwapPagesReadTotal *prometheus.Desc
SwapPagesWrittenTotal *prometheus.Desc
SwapPageOperationsTotal *prometheus.Desc
SwapPageWritesTotal *prometheus.Desc
PoolNonpagedAllocsTotal *prometheus.Desc
PoolNonpagedBytes *prometheus.Desc
PoolPagedAllocsTotal *prometheus.Desc
PoolPagedBytes *prometheus.Desc
PoolPagedResidentBytes *prometheus.Desc
StandbyCacheCoreBytes *prometheus.Desc
StandbyCacheNormalPriorityBytes *prometheus.Desc
StandbyCacheReserveBytes *prometheus.Desc
SystemCacheResidentBytes *prometheus.Desc
SystemCodeResidentBytes *prometheus.Desc
SystemCodeTotalBytes *prometheus.Desc
SystemDriverResidentBytes *prometheus.Desc
SystemDriverTotalBytes *prometheus.Desc
TransitionFaultsTotal *prometheus.Desc
TransitionPagesRepurposedTotal *prometheus.Desc
WriteCopiesTotal *prometheus.Desc
}
// NewMemoryCollector ...
func NewMemoryCollector() (Collector, error) {
const subsystem = "memory"
return &MemoryCollector{
AvailableBytes: prometheus.NewDesc(
prometheus.BuildFQName(Namespace, subsystem, "available_bytes"),
"The amount of physical memory immediately available for allocation to a process or for system use. It is equal to the sum of memory assigned to"+
" the standby (cached), free and zero page lists (AvailableBytes)",
nil,
nil,
),
CacheBytes: prometheus.NewDesc(
prometheus.BuildFQName(Namespace, subsystem, "cache_bytes"),
"(CacheBytes)",
nil,
nil,
),
CacheBytesPeak: prometheus.NewDesc(
prometheus.BuildFQName(Namespace, subsystem, "cache_bytes_peak"),
"(CacheBytesPeak)",
nil,
nil,
),
CacheFaultsTotal: prometheus.NewDesc(
prometheus.BuildFQName(Namespace, subsystem, "cache_faults_total"),
"(CacheFaultsPersec)",
nil,
nil,
),
CommitLimit: prometheus.NewDesc(
prometheus.BuildFQName(Namespace, subsystem, "commit_limit"),
"(CommitLimit)",
nil,
nil,
),
CommittedBytes: prometheus.NewDesc(
prometheus.BuildFQName(Namespace, subsystem, "committed_bytes"),
"(CommittedBytes)",
nil,
nil,
),
DemandZeroFaultsTotal: prometheus.NewDesc(
prometheus.BuildFQName(Namespace, subsystem, "demand_zero_faults_total"),
"The number of zeroed pages required to satisfy faults. Zeroed pages, pages emptied of previously stored data and filled with zeros, are a security"+
" feature of Windows that prevent processes from seeing data stored by earlier processes that used the memory space (DemandZeroFaults)",
nil,
nil,
),
FreeAndZeroPageListBytes: prometheus.NewDesc(
prometheus.BuildFQName(Namespace, subsystem, "free_and_zero_page_list_bytes"),
"(FreeAndZeroPageListBytes)",
nil,
nil,
),
FreeSystemPageTableEntries: prometheus.NewDesc(
prometheus.BuildFQName(Namespace, subsystem, "free_system_page_table_entries"),
"(FreeSystemPageTableEntries)",
nil,
nil,
),
ModifiedPageListBytes: prometheus.NewDesc(
prometheus.BuildFQName(Namespace, subsystem, "modified_page_list_bytes"),
"(ModifiedPageListBytes)",
nil,
nil,
),
PageFaultsTotal: prometheus.NewDesc(
prometheus.BuildFQName(Namespace, subsystem, "page_faults_total"),
"(PageFaultsPersec)",
nil,
nil,
),
SwapPageReadsTotal: prometheus.NewDesc(
prometheus.BuildFQName(Namespace, subsystem, "swap_page_reads_total"),
"Number of disk page reads (a single read operation reading several pages is still only counted once) (PageReadsPersec)",
nil,
nil,
),
SwapPagesReadTotal: prometheus.NewDesc(
prometheus.BuildFQName(Namespace, subsystem, "swap_pages_read_total"),
"Number of pages read across all page reads (ie counting all pages read even if they are read in a single operation) (PagesInputPersec)",
nil,
nil,
),
SwapPagesWrittenTotal: prometheus.NewDesc(
prometheus.BuildFQName(Namespace, subsystem, "swap_pages_written_total"),
"Number of pages written across all page writes (ie counting all pages written even if they are written in a single operation) (PagesOutputPersec)",
nil,
nil,
),
SwapPageOperationsTotal: prometheus.NewDesc(
prometheus.BuildFQName(Namespace, subsystem, "swap_page_operations_total"),
"Total number of swap page read and writes (PagesPersec)",
nil,
nil,
),
SwapPageWritesTotal: prometheus.NewDesc(
prometheus.BuildFQName(Namespace, subsystem, "swap_page_writes_total"),
"Number of disk page writes (a single write operation writing several pages is still only counted once) (PageWritesPersec)",
nil,
nil,
),
PoolNonpagedAllocsTotal: prometheus.NewDesc(
prometheus.BuildFQName(Namespace, subsystem, "pool_nonpaged_allocs_total"),
"The number of calls to allocate space in the nonpaged pool. The nonpaged pool is an area of system memory area for objects that cannot be written"+
" to disk, and must remain in physical memory as long as they are allocated (PoolNonpagedAllocs)",
nil,
nil,
),
PoolNonpagedBytes: prometheus.NewDesc(
prometheus.BuildFQName(Namespace, subsystem, "pool_nonpaged_bytes_total"),
"(PoolNonpagedBytes)",
nil,
nil,
),
PoolPagedAllocsTotal: prometheus.NewDesc(
prometheus.BuildFQName(Namespace, subsystem, "pool_paged_allocs_total"),
"(PoolPagedAllocs)",
nil,
nil,
),
PoolPagedBytes: prometheus.NewDesc(
prometheus.BuildFQName(Namespace, subsystem, "pool_paged_bytes"),
"(PoolPagedBytes)",
nil,
nil,
),
PoolPagedResidentBytes: prometheus.NewDesc(
prometheus.BuildFQName(Namespace, subsystem, "pool_paged_resident_bytes"),
"(PoolPagedResidentBytes)",
nil,
nil,
),
StandbyCacheCoreBytes: prometheus.NewDesc(
prometheus.BuildFQName(Namespace, subsystem, "standby_cache_core_bytes"),
"(StandbyCacheCoreBytes)",
nil,
nil,
),
StandbyCacheNormalPriorityBytes: prometheus.NewDesc(
prometheus.BuildFQName(Namespace, subsystem, "standby_cache_normal_priority_bytes"),
"(StandbyCacheNormalPriorityBytes)",
nil,
nil,
),
StandbyCacheReserveBytes: prometheus.NewDesc(
prometheus.BuildFQName(Namespace, subsystem, "standby_cache_reserve_bytes"),
"(StandbyCacheReserveBytes)",
nil,
nil,
),
SystemCacheResidentBytes: prometheus.NewDesc(
prometheus.BuildFQName(Namespace, subsystem, "system_cache_resident_bytes"),
"(SystemCacheResidentBytes)",
nil,
nil,
),
SystemCodeResidentBytes: prometheus.NewDesc(
prometheus.BuildFQName(Namespace, subsystem, "system_code_resident_bytes"),
"(SystemCodeResidentBytes)",
nil,
nil,
),
SystemCodeTotalBytes: prometheus.NewDesc(
prometheus.BuildFQName(Namespace, subsystem, "system_code_total_bytes"),
"(SystemCodeTotalBytes)",
nil,
nil,
),
SystemDriverResidentBytes: prometheus.NewDesc(
prometheus.BuildFQName(Namespace, subsystem, "system_driver_resident_bytes"),
"(SystemDriverResidentBytes)",
nil,
nil,
),
SystemDriverTotalBytes: prometheus.NewDesc(
prometheus.BuildFQName(Namespace, subsystem, "system_driver_total_bytes"),
"(SystemDriverTotalBytes)",
nil,
nil,
),
TransitionFaultsTotal: prometheus.NewDesc(
prometheus.BuildFQName(Namespace, subsystem, "transition_faults_total"),
"(TransitionFaultsPersec)",
nil,
nil,
),
TransitionPagesRepurposedTotal: prometheus.NewDesc(
prometheus.BuildFQName(Namespace, subsystem, "transition_pages_repurposed_total"),
"(TransitionPagesRePurposedPersec)",
nil,
nil,
),
WriteCopiesTotal: prometheus.NewDesc(
prometheus.BuildFQName(Namespace, subsystem, "write_copies_total"),
"The number of page faults caused by attempting to write that were satisfied by copying the page from elsewhere in physical memory (WriteCopiesPersec)",
nil,
nil,
),
}, nil
}
// Collect sends the metric values for each metric
// to the provided prometheus Metric channel.
func (c *MemoryCollector) Collect(ctx *ScrapeContext, ch chan<- prometheus.Metric) error {
if desc, err := c.collect(ctx, ch); err != nil {
log.Error("failed collecting memory metrics:", desc, err)
return err
}
return nil
}
type memory struct {
AvailableBytes float64 `perflib:"Available Bytes"`
AvailableKBytes float64 `perflib:"Available KBytes"`
AvailableMBytes float64 `perflib:"Available MBytes"`
CacheBytes float64 `perflib:"Cache Bytes"`
CacheBytesPeak float64 `perflib:"Cache Bytes Peak"`
CacheFaultsPersec float64 `perflib:"Cache Faults/sec"`
CommitLimit float64 `perflib:"Commit Limit"`
CommittedBytes float64 `perflib:"Committed Bytes"`
DemandZeroFaultsPersec float64 `perflib:"Demand Zero Faults/sec"`
FreeAndZeroPageListBytes float64 `perflib:"Free & Zero Page List Bytes"`
FreeSystemPageTableEntries float64 `perflib:"Free System Page Table Entries"`
ModifiedPageListBytes float64 `perflib:"Modified Page List Bytes"`
PageFaultsPersec float64 `perflib:"Page Faults/sec"`
PageReadsPersec float64 `perflib:"Page Reads/sec"`
PagesInputPersec float64 `perflib:"Pages Input/sec"`
PagesOutputPersec float64 `perflib:"Pages Output/sec"`
PagesPersec float64 `perflib:"Pages/sec"`
PageWritesPersec float64 `perflib:"Page Writes/sec"`
PoolNonpagedAllocs float64 `perflib:"Pool Nonpaged Allocs"`
PoolNonpagedBytes float64 `perflib:"Pool Nonpaged Bytes"`
PoolPagedAllocs float64 `perflib:"Pool Paged Allocs"`
PoolPagedBytes float64 `perflib:"Pool Paged Bytes"`
PoolPagedResidentBytes float64 `perflib:"Pool Paged Resident Bytes"`
StandbyCacheCoreBytes float64 `perflib:"Standby Cache Core Bytes"`
StandbyCacheNormalPriorityBytes float64 `perflib:"Standby Cache Normal Priority Bytes"`
StandbyCacheReserveBytes float64 `perflib:"Standby Cache Reserve Bytes"`
SystemCacheResidentBytes float64 `perflib:"System Cache Resident Bytes"`
SystemCodeResidentBytes float64 `perflib:"System Code Resident Bytes"`
SystemCodeTotalBytes float64 `perflib:"System Code Total Bytes"`
SystemDriverResidentBytes float64 `perflib:"System Driver Resident Bytes"`
SystemDriverTotalBytes float64 `perflib:"System Driver Total Bytes"`
TransitionFaultsPersec float64 `perflib:"Transition Faults/sec"`
TransitionPagesRePurposedPersec float64 `perflib:"Transition Pages RePurposed/sec"`
WriteCopiesPersec float64 `perflib:"Write Copies/sec"`
}
func (c *MemoryCollector) collect(ctx *ScrapeContext, ch chan<- prometheus.Metric) (*prometheus.Desc, error) {
var dst []memory
if err := unmarshalObject(ctx.perfObjects["Memory"], &dst); err != nil {
return nil, err
}
ch <- prometheus.MustNewConstMetric(
c.AvailableBytes,
prometheus.GaugeValue,
dst[0].AvailableBytes,
)
ch <- prometheus.MustNewConstMetric(
c.CacheBytes,
prometheus.GaugeValue,
dst[0].CacheBytes,
)
ch <- prometheus.MustNewConstMetric(
c.CacheBytesPeak,
prometheus.GaugeValue,
dst[0].CacheBytesPeak,
)
ch <- prometheus.MustNewConstMetric(
c.CacheFaultsTotal,
prometheus.GaugeValue,
dst[0].CacheFaultsPersec,
)
ch <- prometheus.MustNewConstMetric(
c.CommitLimit,
prometheus.GaugeValue,
dst[0].CommitLimit,
)
ch <- prometheus.MustNewConstMetric(
c.CommittedBytes,
prometheus.GaugeValue,
dst[0].CommittedBytes,
)
ch <- prometheus.MustNewConstMetric(
c.DemandZeroFaultsTotal,
prometheus.GaugeValue,
dst[0].DemandZeroFaultsPersec,
)
ch <- prometheus.MustNewConstMetric(
c.FreeAndZeroPageListBytes,
prometheus.GaugeValue,
dst[0].FreeAndZeroPageListBytes,
)
ch <- prometheus.MustNewConstMetric(
c.FreeSystemPageTableEntries,
prometheus.GaugeValue,
dst[0].FreeSystemPageTableEntries,
)
ch <- prometheus.MustNewConstMetric(
c.ModifiedPageListBytes,
prometheus.GaugeValue,
dst[0].ModifiedPageListBytes,
)
ch <- prometheus.MustNewConstMetric(
c.PageFaultsTotal,
prometheus.GaugeValue,
dst[0].PageFaultsPersec,
)
ch <- prometheus.MustNewConstMetric(
c.SwapPageReadsTotal,
prometheus.GaugeValue,
dst[0].PageReadsPersec,
)
ch <- prometheus.MustNewConstMetric(
c.SwapPagesReadTotal,
prometheus.GaugeValue,
dst[0].PagesInputPersec,
)
ch <- prometheus.MustNewConstMetric(
c.SwapPagesWrittenTotal,
prometheus.GaugeValue,
dst[0].PagesOutputPersec,
)
ch <- prometheus.MustNewConstMetric(
c.SwapPageOperationsTotal,
prometheus.GaugeValue,
dst[0].PagesPersec,
)
ch <- prometheus.MustNewConstMetric(
c.SwapPageWritesTotal,
prometheus.GaugeValue,
dst[0].PageWritesPersec,
)
ch <- prometheus.MustNewConstMetric(
c.PoolNonpagedAllocsTotal,
prometheus.GaugeValue,
dst[0].PoolNonpagedAllocs,
)
ch <- prometheus.MustNewConstMetric(
c.PoolNonpagedBytes,
prometheus.GaugeValue,
dst[0].PoolNonpagedBytes,
)
ch <- prometheus.MustNewConstMetric(
c.PoolPagedAllocsTotal,
prometheus.GaugeValue,
dst[0].PoolPagedAllocs,
)
ch <- prometheus.MustNewConstMetric(
c.PoolPagedBytes,
prometheus.GaugeValue,
dst[0].PoolPagedBytes,
)
ch <- prometheus.MustNewConstMetric(
c.PoolPagedResidentBytes,
prometheus.GaugeValue,
dst[0].PoolPagedResidentBytes,
)
ch <- prometheus.MustNewConstMetric(
c.StandbyCacheCoreBytes,
prometheus.GaugeValue,
dst[0].StandbyCacheCoreBytes,
)
ch <- prometheus.MustNewConstMetric(
c.StandbyCacheNormalPriorityBytes,
prometheus.GaugeValue,
dst[0].StandbyCacheNormalPriorityBytes,
)
ch <- prometheus.MustNewConstMetric(
c.StandbyCacheReserveBytes,
prometheus.GaugeValue,
dst[0].StandbyCacheReserveBytes,
)
ch <- prometheus.MustNewConstMetric(
c.SystemCacheResidentBytes,
prometheus.GaugeValue,
dst[0].SystemCacheResidentBytes,
)
ch <- prometheus.MustNewConstMetric(
c.SystemCodeResidentBytes,
prometheus.GaugeValue,
dst[0].SystemCodeResidentBytes,
)
ch <- prometheus.MustNewConstMetric(
c.SystemCodeTotalBytes,
prometheus.GaugeValue,
dst[0].SystemCodeTotalBytes,
)
ch <- prometheus.MustNewConstMetric(
c.SystemDriverResidentBytes,
prometheus.GaugeValue,
dst[0].SystemDriverResidentBytes,
)
ch <- prometheus.MustNewConstMetric(
c.SystemDriverTotalBytes,
prometheus.GaugeValue,
dst[0].SystemDriverTotalBytes,
)
ch <- prometheus.MustNewConstMetric(
c.TransitionFaultsTotal,
prometheus.GaugeValue,
dst[0].TransitionFaultsPersec,
)
ch <- prometheus.MustNewConstMetric(
c.TransitionPagesRepurposedTotal,
prometheus.GaugeValue,
dst[0].TransitionPagesRePurposedPersec,
)
ch <- prometheus.MustNewConstMetric(
c.WriteCopiesTotal,
prometheus.GaugeValue,
dst[0].WriteCopiesPersec,
)
return nil, nil
}