Abnormal latency values are seen in ESXTOP and on the vCenter performance charts

Products

• VMware vCenter Server

Issue/Introduction

Symptoms:

• esxtop displays abnormal DAVG/cmd and/or KAVG/cmd values.
• In some cases, negative values are reported for latency, which is theoretically not possible.
• In the vCenter Performance Chart you see unrealistic spikes in latency. 
• During low I/O activity on a device, the READS/s and WRITES/s values are close to or equal to 0.
• You see values of DAVG similar to these:
  
  
  

Resolution

This issue is resolved in:

• VMware ESXi 6.5 Update 3 Build 13932383
• VMware ESXi 6.7 Update 2 Build 13006603

Additional Information