Host CPU Utilization graph shows high CPU but the performance graph on the server shows little activity

[Royce_Simpson]

Having an odd issue that just started in the last day or so, where I'm getting high CPU usage alerts from the ArcGIS Monitor server machine (registered host component), but when I log into that server and look at the CPU performance graph native to the OS, I see very little activity, everything well below the alerting thresholds.  

Is there a reason Monitor would report different readings than what the server is directly showing?

[DerekLaw]

Hi @Royce_Simpson,

ArcGIS Monitor should report the same CPU host metrics as the CPU performance graph of the host. Can you please share some more details and maybe screenshots of what you're seeing? Which release of ArcGIS Monitor are you using?

To confirm, this would be for the same time period/range right? Is this for a Windows or Linux host? Are you only seeing this behavior for a single host, or for all your host machines?

  

[Royce_Simpson]

Here are a couple screenshots of the task manager cpu stats on the server vs ArcGIS Monitor.  The time scales are different but task manager on the server is consistently below 20% on average, whereas ArcGIS Monitor is showing consistantly above 60%.

ArcGIS Monitor 2025 (2025.0.0+856). Windows Host.

Monitor

Server Task Manager

[DerekLaw]

Hi @Royce_Simpson,

Apologies for the late reply. 

Are you seeing this behavior for just 1x - GIS Server host, or for all of your registered GIS Server hosts? If the former, anything that makes this particular host different from the others? Does it have other software running?

[Royce_Simpson]

Just the one.  The only thing that makes it different, as far as I can tell, is that it's the server with ArcGIS Monitor installed.  No other software is installed. 

You can see from the screenshot that the ArcGIS Monitor CPU is always high compared to all the other servers.  Task Manager on that server reports an average of 10-15%.  

[DerekLaw]

Thanks for the clarification @Royce_Simpson.

I haven't seen this behavior before, can you please open a case with Esri Tech Support so they can take a closer look?