Hi,
I have encountered an issue when running the tcp_nup tests on newer versions of
Linux, specifically v4.16 and up. It seems that flent isn't able to get enough
data points (for upload throughput) for individual TCP flows. This is causing
the median TCP upload sum value to be way lower than the the average TCP upload
sum on a setup with a bottleneck bandwidth of 10 Mbits/s. Whereas, the same
setup, with flent running on a slightly older version of Linux (v4.13 and
v4.15) gives results with good number of data points for individual TCP flows.
I built the newer kernels using the "make olddefconfig" after copying the
config for v4.15.
Thanks
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