Data Plane CPU utilization Reaches more than 90 %

[G.Jha286197]

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
*        *      *    *      *     *       *   *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *