[Flent-users] [tohojo/flent] packet loss stats (#106)
notifications at github.com
Thu Nov 16 19:18:56 EET 2017
Pete Heist <notifications at github.com> writes:
> Measurement-wise, I see similar results with netperf vs irtt in my Gbit LAN with
> BQL and 'cake besteffort lan' test, with irtt having a slightly higher mean and
> maximums, as might be expected. This is something I might be able to improve.
> I'll try playing with chrt when I have time.
> On the positive side(?), with irtt, I don't see the 'latency locking' effect
> that I see with netperf, where for whatever reason, certain flows would stay
> more fixed in some position relative to the mean. Also, in these runs, the
> download throughput was somewhat less with netperf, but not with irtt.
My guess is you are seeing the difference between scheduling netperf and
irtt in the cpus, and their effect on cache behavior, with the irtt
version having a larger footprint and skewing the runs of netperf a tiny
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