509 lines
18 KiB
Go
509 lines
18 KiB
Go
// returns data points from Win32_PerfRawData_PerfOS_Memory
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// <add link to documentation here> - Win32_PerfRawData_PerfOS_Memory class
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//go:build windows
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// +build windows
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package collector
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import (
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"github.com/prometheus-community/windows_exporter/log"
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"github.com/prometheus/client_golang/prometheus"
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)
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// A MemoryCollector is a Prometheus collector for perflib Memory metrics
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type MemoryCollector struct {
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AvailableBytes *prometheus.Desc
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CacheBytes *prometheus.Desc
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CacheBytesPeak *prometheus.Desc
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CacheFaultsTotal *prometheus.Desc
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CommitLimit *prometheus.Desc
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CommittedBytes *prometheus.Desc
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DemandZeroFaultsTotal *prometheus.Desc
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FreeAndZeroPageListBytes *prometheus.Desc
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FreeSystemPageTableEntries *prometheus.Desc
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ModifiedPageListBytes *prometheus.Desc
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PageFaultsTotal *prometheus.Desc
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SwapPageReadsTotal *prometheus.Desc
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SwapPagesReadTotal *prometheus.Desc
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SwapPagesWrittenTotal *prometheus.Desc
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SwapPageOperationsTotal *prometheus.Desc
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SwapPageWritesTotal *prometheus.Desc
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PoolNonpagedAllocsTotal *prometheus.Desc
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PoolNonpagedBytes *prometheus.Desc
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PoolPagedAllocsTotal *prometheus.Desc
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PoolPagedBytes *prometheus.Desc
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PoolPagedResidentBytes *prometheus.Desc
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StandbyCacheCoreBytes *prometheus.Desc
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StandbyCacheNormalPriorityBytes *prometheus.Desc
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StandbyCacheReserveBytes *prometheus.Desc
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SystemCacheResidentBytes *prometheus.Desc
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SystemCodeResidentBytes *prometheus.Desc
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SystemCodeTotalBytes *prometheus.Desc
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SystemDriverResidentBytes *prometheus.Desc
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SystemDriverTotalBytes *prometheus.Desc
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TransitionFaultsTotal *prometheus.Desc
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TransitionPagesRepurposedTotal *prometheus.Desc
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WriteCopiesTotal *prometheus.Desc
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}
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// NewMemoryCollector ...
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func NewMemoryCollector() (Collector, error) {
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const subsystem = "memory"
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return &MemoryCollector{
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AvailableBytes: prometheus.NewDesc(
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prometheus.BuildFQName(Namespace, subsystem, "available_bytes"),
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"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"+
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" the standby (cached), free and zero page lists (AvailableBytes)",
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nil,
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nil,
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),
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CacheBytes: prometheus.NewDesc(
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prometheus.BuildFQName(Namespace, subsystem, "cache_bytes"),
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"(CacheBytes)",
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nil,
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nil,
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),
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CacheBytesPeak: prometheus.NewDesc(
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prometheus.BuildFQName(Namespace, subsystem, "cache_bytes_peak"),
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"(CacheBytesPeak)",
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nil,
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nil,
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),
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CacheFaultsTotal: prometheus.NewDesc(
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prometheus.BuildFQName(Namespace, subsystem, "cache_faults_total"),
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"Number of faults which occur when a page sought in the file system cache is not found there and must be retrieved from elsewhere in memory (soft fault) "+
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"or from disk (hard fault) (Cache Faults/sec)",
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nil,
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nil,
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),
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CommitLimit: prometheus.NewDesc(
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prometheus.BuildFQName(Namespace, subsystem, "commit_limit"),
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"(CommitLimit)",
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nil,
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nil,
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),
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CommittedBytes: prometheus.NewDesc(
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prometheus.BuildFQName(Namespace, subsystem, "committed_bytes"),
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"(CommittedBytes)",
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nil,
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nil,
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),
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DemandZeroFaultsTotal: prometheus.NewDesc(
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prometheus.BuildFQName(Namespace, subsystem, "demand_zero_faults_total"),
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"The number of zeroed pages required to satisfy faults. Zeroed pages, pages emptied of previously stored data and filled with zeros, are a security"+
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" feature of Windows that prevent processes from seeing data stored by earlier processes that used the memory space (Demand Zero Faults/sec)",
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nil,
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nil,
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),
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FreeAndZeroPageListBytes: prometheus.NewDesc(
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prometheus.BuildFQName(Namespace, subsystem, "free_and_zero_page_list_bytes"),
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"The amount of physical memory, in bytes, that is assigned to the free and zero page lists. This memory does not contain cached data. It is immediately"+
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" available for allocation to a process or for system use (FreeAndZeroPageListBytes)",
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nil,
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nil,
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),
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FreeSystemPageTableEntries: prometheus.NewDesc(
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prometheus.BuildFQName(Namespace, subsystem, "free_system_page_table_entries"),
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"(FreeSystemPageTableEntries)",
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nil,
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nil,
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),
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ModifiedPageListBytes: prometheus.NewDesc(
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prometheus.BuildFQName(Namespace, subsystem, "modified_page_list_bytes"),
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"The amount of physical memory, in bytes, that is assigned to the modified page list. This memory contains cached data and code that is not actively in "+
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"use by processes, the system and the system cache (ModifiedPageListBytes)",
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nil,
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nil,
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),
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PageFaultsTotal: prometheus.NewDesc(
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prometheus.BuildFQName(Namespace, subsystem, "page_faults_total"),
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"Overall rate at which faulted pages are handled by the processor (Page Faults/sec)",
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nil,
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nil,
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),
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SwapPageReadsTotal: prometheus.NewDesc(
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prometheus.BuildFQName(Namespace, subsystem, "swap_page_reads_total"),
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"Number of disk page reads (a single read operation reading several pages is still only counted once) (PageReadsPersec)",
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nil,
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nil,
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),
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SwapPagesReadTotal: prometheus.NewDesc(
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prometheus.BuildFQName(Namespace, subsystem, "swap_pages_read_total"),
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"Number of pages read across all page reads (ie counting all pages read even if they are read in a single operation) (PagesInputPersec)",
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nil,
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nil,
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),
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SwapPagesWrittenTotal: prometheus.NewDesc(
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prometheus.BuildFQName(Namespace, subsystem, "swap_pages_written_total"),
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"Number of pages written across all page writes (ie counting all pages written even if they are written in a single operation) (PagesOutputPersec)",
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nil,
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nil,
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),
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SwapPageOperationsTotal: prometheus.NewDesc(
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prometheus.BuildFQName(Namespace, subsystem, "swap_page_operations_total"),
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"Total number of swap page read and writes (PagesPersec)",
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nil,
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nil,
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),
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SwapPageWritesTotal: prometheus.NewDesc(
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prometheus.BuildFQName(Namespace, subsystem, "swap_page_writes_total"),
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"Number of disk page writes (a single write operation writing several pages is still only counted once) (PageWritesPersec)",
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nil,
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nil,
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),
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PoolNonpagedAllocsTotal: prometheus.NewDesc(
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prometheus.BuildFQName(Namespace, subsystem, "pool_nonpaged_allocs_total"),
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"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"+
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" to disk, and must remain in physical memory as long as they are allocated (PoolNonpagedAllocs)",
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nil,
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nil,
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),
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PoolNonpagedBytes: prometheus.NewDesc(
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prometheus.BuildFQName(Namespace, subsystem, "pool_nonpaged_bytes"),
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"Number of bytes in the non-paged pool, an area of the system virtual memory that is used for objects that cannot be written to disk, but must "+
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"remain in physical memory as long as they are allocated (PoolNonpagedBytes)",
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nil,
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nil,
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),
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PoolPagedAllocsTotal: prometheus.NewDesc(
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prometheus.BuildFQName(Namespace, subsystem, "pool_paged_allocs_total"),
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"Number of calls to allocate space in the paged pool, regardless of the amount of space allocated in each call (PoolPagedAllocs)",
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nil,
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nil,
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),
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PoolPagedBytes: prometheus.NewDesc(
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prometheus.BuildFQName(Namespace, subsystem, "pool_paged_bytes"),
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"(PoolPagedBytes)",
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nil,
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nil,
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),
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PoolPagedResidentBytes: prometheus.NewDesc(
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prometheus.BuildFQName(Namespace, subsystem, "pool_paged_resident_bytes"),
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"The size, in bytes, of the portion of the paged pool that is currently resident and active in physical memory. The paged pool is an area of the "+
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"system virtual memory that is used for objects that can be written to disk when they are not being used (PoolPagedResidentBytes)",
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nil,
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nil,
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),
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StandbyCacheCoreBytes: prometheus.NewDesc(
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prometheus.BuildFQName(Namespace, subsystem, "standby_cache_core_bytes"),
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"The amount of physical memory, in bytes, that is assigned to the core standby cache page lists. This memory contains cached data and code that is "+
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"not actively in use by processes, the system and the system cache (StandbyCacheCoreBytes)",
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nil,
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nil,
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),
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StandbyCacheNormalPriorityBytes: prometheus.NewDesc(
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prometheus.BuildFQName(Namespace, subsystem, "standby_cache_normal_priority_bytes"),
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"The amount of physical memory, in bytes, that is assigned to the normal priority standby cache page lists. This memory contains cached data and "+
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"code that is not actively in use by processes, the system and the system cache (StandbyCacheNormalPriorityBytes)",
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nil,
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nil,
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),
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StandbyCacheReserveBytes: prometheus.NewDesc(
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prometheus.BuildFQName(Namespace, subsystem, "standby_cache_reserve_bytes"),
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"The amount of physical memory, in bytes, that is assigned to the reserve standby cache page lists. This memory contains cached data and code "+
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"that is not actively in use by processes, the system and the system cache (StandbyCacheReserveBytes)",
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nil,
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nil,
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),
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SystemCacheResidentBytes: prometheus.NewDesc(
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prometheus.BuildFQName(Namespace, subsystem, "system_cache_resident_bytes"),
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"The size, in bytes, of the portion of the system file cache which is currently resident and active in physical memory (SystemCacheResidentBytes)",
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nil,
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nil,
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),
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SystemCodeResidentBytes: prometheus.NewDesc(
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prometheus.BuildFQName(Namespace, subsystem, "system_code_resident_bytes"),
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"The size, in bytes, of the pageable operating system code that is currently resident and active in physical memory (SystemCodeResidentBytes)",
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nil,
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nil,
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),
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SystemCodeTotalBytes: prometheus.NewDesc(
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prometheus.BuildFQName(Namespace, subsystem, "system_code_total_bytes"),
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"The size, in bytes, of the pageable operating system code currently mapped into the system virtual address space (SystemCodeTotalBytes)",
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nil,
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nil,
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),
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SystemDriverResidentBytes: prometheus.NewDesc(
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prometheus.BuildFQName(Namespace, subsystem, "system_driver_resident_bytes"),
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"The size, in bytes, of the pageable physical memory being used by device drivers. It is the working set (physical memory area) of the drivers (SystemDriverResidentBytes)",
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nil,
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nil,
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),
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SystemDriverTotalBytes: prometheus.NewDesc(
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prometheus.BuildFQName(Namespace, subsystem, "system_driver_total_bytes"),
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"The size, in bytes, of the pageable virtual memory currently being used by device drivers. Pageable memory can be written to disk when it is not being used (SystemDriverTotalBytes)",
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nil,
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nil,
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),
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TransitionFaultsTotal: prometheus.NewDesc(
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prometheus.BuildFQName(Namespace, subsystem, "transition_faults_total"),
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"Number of faults rate at which page faults are resolved by recovering pages that were being used by another process sharing the page, or were on the "+
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"modified page list or the standby list, or were being written to disk at the time of the page fault (TransitionFaultsPersec)",
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nil,
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nil,
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),
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TransitionPagesRepurposedTotal: prometheus.NewDesc(
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prometheus.BuildFQName(Namespace, subsystem, "transition_pages_repurposed_total"),
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"Transition Pages RePurposed is the rate at which the number of transition cache pages were reused for a different purpose (TransitionPagesRePurposedPersec)",
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nil,
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nil,
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),
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WriteCopiesTotal: prometheus.NewDesc(
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prometheus.BuildFQName(Namespace, subsystem, "write_copies_total"),
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"The number of page faults caused by attempting to write that were satisfied by copying the page from elsewhere in physical memory (WriteCopiesPersec)",
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nil,
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nil,
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),
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}, nil
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}
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// Collect sends the metric values for each metric
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// to the provided prometheus Metric channel.
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func (c *MemoryCollector) Collect(ctx *ScrapeContext, ch chan<- prometheus.Metric) error {
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if desc, err := c.collect(ctx, ch); err != nil {
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log.Error("failed collecting memory metrics:", desc, err)
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return err
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}
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return nil
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}
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type memory struct {
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AvailableBytes float64 `perflib:"Available Bytes"`
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AvailableKBytes float64 `perflib:"Available KBytes"`
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AvailableMBytes float64 `perflib:"Available MBytes"`
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CacheBytes float64 `perflib:"Cache Bytes"`
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CacheBytesPeak float64 `perflib:"Cache Bytes Peak"`
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CacheFaultsPersec float64 `perflib:"Cache Faults/sec"`
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CommitLimit float64 `perflib:"Commit Limit"`
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CommittedBytes float64 `perflib:"Committed Bytes"`
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DemandZeroFaultsPersec float64 `perflib:"Demand Zero Faults/sec"`
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FreeAndZeroPageListBytes float64 `perflib:"Free & Zero Page List Bytes"`
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FreeSystemPageTableEntries float64 `perflib:"Free System Page Table Entries"`
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ModifiedPageListBytes float64 `perflib:"Modified Page List Bytes"`
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PageFaultsPersec float64 `perflib:"Page Faults/sec"`
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PageReadsPersec float64 `perflib:"Page Reads/sec"`
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PagesInputPersec float64 `perflib:"Pages Input/sec"`
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PagesOutputPersec float64 `perflib:"Pages Output/sec"`
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PagesPersec float64 `perflib:"Pages/sec"`
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PageWritesPersec float64 `perflib:"Page Writes/sec"`
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PoolNonpagedAllocs float64 `perflib:"Pool Nonpaged Allocs"`
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PoolNonpagedBytes float64 `perflib:"Pool Nonpaged Bytes"`
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PoolPagedAllocs float64 `perflib:"Pool Paged Allocs"`
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PoolPagedBytes float64 `perflib:"Pool Paged Bytes"`
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PoolPagedResidentBytes float64 `perflib:"Pool Paged Resident Bytes"`
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StandbyCacheCoreBytes float64 `perflib:"Standby Cache Core Bytes"`
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StandbyCacheNormalPriorityBytes float64 `perflib:"Standby Cache Normal Priority Bytes"`
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StandbyCacheReserveBytes float64 `perflib:"Standby Cache Reserve Bytes"`
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SystemCacheResidentBytes float64 `perflib:"System Cache Resident Bytes"`
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SystemCodeResidentBytes float64 `perflib:"System Code Resident Bytes"`
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SystemCodeTotalBytes float64 `perflib:"System Code Total Bytes"`
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SystemDriverResidentBytes float64 `perflib:"System Driver Resident Bytes"`
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SystemDriverTotalBytes float64 `perflib:"System Driver Total Bytes"`
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TransitionFaultsPersec float64 `perflib:"Transition Faults/sec"`
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TransitionPagesRePurposedPersec float64 `perflib:"Transition Pages RePurposed/sec"`
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WriteCopiesPersec float64 `perflib:"Write Copies/sec"`
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}
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func (c *MemoryCollector) collect(ctx *ScrapeContext, ch chan<- prometheus.Metric) (*prometheus.Desc, error) {
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var dst []memory
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if err := unmarshalObject(ctx.perfObjects["Memory"], &dst); err != nil {
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return nil, err
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}
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ch <- prometheus.MustNewConstMetric(
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c.AvailableBytes,
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prometheus.GaugeValue,
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dst[0].AvailableBytes,
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)
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ch <- prometheus.MustNewConstMetric(
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c.CacheBytes,
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prometheus.GaugeValue,
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dst[0].CacheBytes,
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)
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ch <- prometheus.MustNewConstMetric(
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c.CacheBytesPeak,
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prometheus.GaugeValue,
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dst[0].CacheBytesPeak,
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)
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ch <- prometheus.MustNewConstMetric(
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c.CacheFaultsTotal,
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prometheus.CounterValue,
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dst[0].CacheFaultsPersec,
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)
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ch <- prometheus.MustNewConstMetric(
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c.CommitLimit,
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prometheus.GaugeValue,
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dst[0].CommitLimit,
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)
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ch <- prometheus.MustNewConstMetric(
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c.CommittedBytes,
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prometheus.GaugeValue,
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dst[0].CommittedBytes,
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)
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ch <- prometheus.MustNewConstMetric(
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c.DemandZeroFaultsTotal,
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prometheus.CounterValue,
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dst[0].DemandZeroFaultsPersec,
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)
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ch <- prometheus.MustNewConstMetric(
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c.FreeAndZeroPageListBytes,
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prometheus.GaugeValue,
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dst[0].FreeAndZeroPageListBytes,
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)
|
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ch <- prometheus.MustNewConstMetric(
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c.FreeSystemPageTableEntries,
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prometheus.GaugeValue,
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dst[0].FreeSystemPageTableEntries,
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)
|
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ch <- prometheus.MustNewConstMetric(
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c.ModifiedPageListBytes,
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prometheus.GaugeValue,
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dst[0].ModifiedPageListBytes,
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)
|
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ch <- prometheus.MustNewConstMetric(
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c.PageFaultsTotal,
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prometheus.CounterValue,
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dst[0].PageFaultsPersec,
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)
|
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ch <- prometheus.MustNewConstMetric(
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c.SwapPageReadsTotal,
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prometheus.CounterValue,
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dst[0].PageReadsPersec,
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)
|
|
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ch <- prometheus.MustNewConstMetric(
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c.SwapPagesReadTotal,
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prometheus.CounterValue,
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dst[0].PagesInputPersec,
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)
|
|
|
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ch <- prometheus.MustNewConstMetric(
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c.SwapPagesWrittenTotal,
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prometheus.CounterValue,
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dst[0].PagesOutputPersec,
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)
|
|
|
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ch <- prometheus.MustNewConstMetric(
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c.SwapPageOperationsTotal,
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prometheus.CounterValue,
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dst[0].PagesPersec,
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)
|
|
|
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ch <- prometheus.MustNewConstMetric(
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c.SwapPageWritesTotal,
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prometheus.CounterValue,
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dst[0].PageWritesPersec,
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)
|
|
|
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ch <- prometheus.MustNewConstMetric(
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c.PoolNonpagedAllocsTotal,
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prometheus.GaugeValue,
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dst[0].PoolNonpagedAllocs,
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)
|
|
|
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ch <- prometheus.MustNewConstMetric(
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c.PoolNonpagedBytes,
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prometheus.GaugeValue,
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dst[0].PoolNonpagedBytes,
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)
|
|
|
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ch <- prometheus.MustNewConstMetric(
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c.PoolPagedAllocsTotal,
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prometheus.CounterValue,
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dst[0].PoolPagedAllocs,
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)
|
|
|
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ch <- prometheus.MustNewConstMetric(
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c.PoolPagedBytes,
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prometheus.GaugeValue,
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dst[0].PoolPagedBytes,
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)
|
|
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ch <- prometheus.MustNewConstMetric(
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c.PoolPagedResidentBytes,
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prometheus.GaugeValue,
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dst[0].PoolPagedResidentBytes,
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)
|
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|
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ch <- prometheus.MustNewConstMetric(
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c.StandbyCacheCoreBytes,
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prometheus.GaugeValue,
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dst[0].StandbyCacheCoreBytes,
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)
|
|
|
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ch <- prometheus.MustNewConstMetric(
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c.StandbyCacheNormalPriorityBytes,
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prometheus.GaugeValue,
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dst[0].StandbyCacheNormalPriorityBytes,
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)
|
|
|
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ch <- prometheus.MustNewConstMetric(
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c.StandbyCacheReserveBytes,
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prometheus.GaugeValue,
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dst[0].StandbyCacheReserveBytes,
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)
|
|
|
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ch <- prometheus.MustNewConstMetric(
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c.SystemCacheResidentBytes,
|
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prometheus.GaugeValue,
|
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dst[0].SystemCacheResidentBytes,
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)
|
|
|
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ch <- prometheus.MustNewConstMetric(
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c.SystemCodeResidentBytes,
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prometheus.GaugeValue,
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dst[0].SystemCodeResidentBytes,
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)
|
|
|
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ch <- prometheus.MustNewConstMetric(
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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.CounterValue,
|
|
dst[0].TransitionFaultsPersec,
|
|
)
|
|
|
|
ch <- prometheus.MustNewConstMetric(
|
|
c.TransitionPagesRepurposedTotal,
|
|
prometheus.CounterValue,
|
|
dst[0].TransitionPagesRePurposedPersec,
|
|
)
|
|
|
|
ch <- prometheus.MustNewConstMetric(
|
|
c.WriteCopiesTotal,
|
|
prometheus.CounterValue,
|
|
dst[0].WriteCopiesPersec,
|
|
)
|
|
|
|
return nil, nil
|
|
}
|