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Re: Cake compiled for the ERL

Here are some more results using:

 

  • Cake's besteffort flag (be)
  • Cake's besteffort and triple-isolate flags together (be_ti)
  • Cake's lan and besteffort flags together (lan_be)
  • fq_codel with Flent's rrul_be test (fq_codel_rrul_be)
  • Cake with no additional flags and Flent's rrul_be test (rrul_be)

Plots of these tests at 100mbit are included as images, and the full results are attached. Comments on the results:

 

  • The tests using Flent's rrul_be test at 100mbit symmetric are a little surprising, where Cake's average download bandwidth was around 14-15mbit, while fq_codel's was around 21mbit. I did a second trial for cake at a separate time and got the same results.
  • The results for triple-isolate look smooth, and I don't see that that option adds significant load on the router, but I don't know how Flent's standard rrul test can test host fairness fully, since there's only one host doing the test.
  • When I add Cake's lan flag (since after all this testing is not over a WAN), the average latencies go down considerably, but throughput does as well. Is that expected?
  • Unlike my previous tests, I started seeing erratic behavior for both fq_codel and Cake at around 110mbps symmetric, whereas yesterday it started somewhere above 120mbps. Since my tests aren't done in complete isolation, there could be other small loads affecting things.

 

 

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cake_100_be.png
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cake_100_be_ti.png
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fq_codel_100_rrul_be.png
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cake_100_lan_be.png
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cake_100_rrul_be.png


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