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nffPktgen sends traffic with no consistent speed and pkts count #694
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Hi @Bubbachuck - one of the reasons for such behavior can be an insufficient number of cores - how many cores do you have and what is the environment? |
Thanks @aregm for your response. EAL: Detected 16 lcore(s) |
@Bubbachuck can you please specify the environment and the command you are running nffpktgen? |
Hi @Bubbachuck! Could you also please describe what speed do you want to achieve: Scheduler is designed in the way that it supposes that tasks at different cores will not compete with each other - is this satisfied in your VM environment? If not - you can try to make speed lower, than scheduler will not use additional cores. |
@aregm The command is "trafficgen" which is in the folder of "gtp-u". The environment is a VM with 16 x 1G hugepages, and 16 cores in a NUMA from 16HTs in a socket. |
Hi @ifilippov The target speed is 1500000 PKT/S. It looks can achieve the speed before to be unstable. I am not sure the real-time speed, but packets drop is found in debug message. Please find below debug information: DEBUG: System is using 16 cores now. 0 cores are left available. |
Hi friends,
When I use nffPktgen sending traffic, I found the speed is not consistent and the pkts count is also not consistent.
Could you please share me how I can send traffic with a consistent speed?
And sometime below information is observed:
WARNING: Can't start new clone for segment1 instance 0
What is the reason for this warning?
Thanks.
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