Werk #19831: Fix ESX GPU utilization showing values 100 times too high

Component

Checks & agents

Title

Fix ESX GPU utilization showing values 100 times too high

Date

Jun 4, 2026

Level

Trivial Change

Class

Bug Fix

Compatibility

Compatible - no manual interaction needed

Checkmk versions & editions

3.0.0b1 Not yet released	Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT
2.5.0p6	Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT

The "GPU Utilization" service for ESX host systems reported impossible values such as 1850%, and was effectively always WARN or CRIT: the default thresholds of 80%/90% were already exceeded at a real utilization of 0.8%/0.9%.

The vSphere performance API reports counters with the unit "percent" as fixed point integers in hundredths of a percent — a raw value of 1850 means 18.5%. The check plugin esx_vsphere_counters_gpu_utilization took the raw value as-is; it now converts it correctly.

If you raised the levels in the rule "ESX GPU Utilization" to work around the inflated values, revert them to sensible percentages after updating.

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