Articles in this section

Self help
FAQ
["FAQ"]

Geneos - CPU - CPU plugin under the hood: Windows

Avatar
ITRS Support
  • Updated
Follow

Windows CPU details are taken from the statistics published by Windows PerfMon counters.

These figures can be displayed separately using the Windows Performance Monitor program "perfmon.exe" which comes with windows.

The plugin uses Windows Performance Counters to retrieve the metrics. The current implementation uses the old PerfMon plugin's code to the values. It uses the Registry API instead of the newer PDH API.

The schema for Win-CPU plugin is already deprecated. However, it still uses the Win-CPU plugin codes under the hood when running CPU plugin on Windows.

Available Performance Counters can be seen in HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Perflib

Column Name
Windows 2008 / Vista
Windows 2008 R2 and later*
Remarks
CPU Processor (238)

Processor Information

 This is used to retrieve the processor instances i.e. 0,1, _Total
%processorTime \Processor(%s)\% Processor Time or \238(%s)\6 \Processor Information(%s)\% Processor Time where %s represents the processor instance name
%userTime \Processor(%s)\% User Time or \238(%s)\142 \Processor Information(%s)\% User Time where %s represents the processor instance name
%privilegedTime \Processor(%s)\% Privileged Time or \238(%s)\144 \Processor Information(%s)\% Privileged Time where %s represents the processor instance name
interrupts/Sec \Processor(%s)\Interrupts/sec or \238(%s)\148 \Processor Information(%s)\Interrupts/sec where %s represents the processor instance name
%DPCTime \Processor(%s)\% DPC Time or \238(%s)\696 \Processor Information(%s)\% DPC Time where %s represents the processor instance name
%interruptTime \Processor(%s)\% Interrupt Time or \238(%s)\698 \Processor Information(%s)\% Interrupt Time where %s represents the processor instance name
DPCsQueued/sec \Processor(%s)\DPCs Queued/sec or \238(%s)\1334 \Processor Information(%s)\DPCs Queued/sec where %s represents the processor instance name
DPCRate \Processor(%s)\DPC Rate or \238(%s)\1336 \Processor Information(%s)\DPC Rate where %s represents the processor instance name

* Counter index varies on Windows versions.

Commands

Command Name
Internal Command Name
Source Code
Performance Counters
Remarks

Top 20 Processes

All Processes

 TOPCPU

nt_aux.cpp -> NT_GetCPU()

\Processor

\Processor(%s)\% Processor Time

 where %s represents the processor instance name

Related articles

Comments

0 comments

Please sign in to leave a comment.