Usrp E100 latency measurement

Dear experts,

I’m new to USRP so that I need to ask some fundamental things.
I’ve just purchased two USRP E100s.
I want to measure the latency of the USRP E100 in order to compare with
USRP1 and USRP2.

My intention is to measure the latency in two layers.

  1. Latency of UHD driver
  2. Latency of the USRP E100 itself.

I would like to ask any suggestion for me?
Many thanks.

Best Regards,
Nguyen B.Truong

Nguyen Truong wrote in post #1029464:

Dear experts,

I’m new to USRP so that I need to ask some fundamental things.
I’ve just purchased two USRP E100s.
I want to measure the latency of the USRP E100 in order to compare with
USRP1 and USRP2.

My intention is to measure the latency in two layers.

  1. Latency of UHD driver
  2. Latency of the USRP E100 itself.

I would like to ask any suggestion for me?
Many thanks.

Best Regards,
Nguyen B.Truong

I’m using USRP E100 which is standalone device.
I’ve tried to measure the time between gruradio (user-space) and Linux
kernel (all are embeded in E100); and the time from linux kernel to fpga
(until the packet is sent).
I expect the RRT will be smaller compared to USRP1 and USRP2 due to E100
doesn’t require data transfer from usrp to host computer (via
usb/ethernet cable)

I’m new to Usrp and gnuradio. I have no idea now.
I would like to ask any suggestion from all of you for my case.

Thank you very much in advance

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