Data Plane CPU utilization Reaches more than 90 %

G.Jha286197 — Thu, 04 Dec 2025 17:54:28 GMT

model: PA-VM
vm-license: VM-SERIES-4
vm-cap-tier: T2-14GB
vm-cpu-count: 4

Data Plane CPU utilization Reaches more than 90 % . Is there any Limit on PPS for Azure VM-SERIES-4 . I think 525895 Kbps is well under the limit . Is PPS causing the issue ? . Session table: 1% , Packet buffer: 10% , Packet descriptor: 0% , SW tag descriptors: low all seems under control . One more point High CPU DP lasts for few minutes and then goes back to 70% during peak hours .

Packet rate : 243324/s
Throughput : 525895 Kbps
Total active sessions : 13884
Active TCP sessions : 13737
Active UDP sessions : 130
Active ICMP sessions : 17

During Normal operation when CPU is around 60 % .

Packet rate : 150670/s
Throughput : 351331 Kbps
Total active sessions : 14012
Active TCP sessions : 13874
Active UDP sessions : 117
Active ICMP sessions : 21

CPU load (%) during last 13 weeks:
core 0 1 2 3
avg max avg max avg max avg max
* * 35 100 46 100 37 100
* * 35 99 45 100 37 99
* * 34 100 44 100 37 100
* * 33 99 42 100 36 99
* * 33 96 41 98 36 98
* * 34 96 41 98 36 96
* * 33 100 40 100 35 100
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topic Data Plane CPU utilization Reaches more than 90 % in VM-Series in the Public Cloud

Data Plane CPU utilization Reaches more than 90 %