<div dir="ltr">Hi Dave,<div><br></div><div>Sorry for the late reply. Thank you for your interest in our work! And also thank you so much for providing the pointers on related literature! They are really helpful and we will look into these work later.</div><div><br></div><div>We did simulate the FqCoDel using the built-in implementation of ns-3. Two of the issues that we found are that (i) some CCAs are not responsive to packet losses, especially for latency-sensitive CCAs -- GCC seems to need a loss rate of >10% to trigger the loss controller; and (ii) if the CCA on the sender is not ECN-compatible, additional packet retransmissions will further occupy the buffer space, leading to longer duration of congestion.</div><div><br></div><div>We did not compare FqCoDel in the testbed experiments on WiFi AP due to the reasons above. We do hope to test with more cases and baselines in the real implementations in the future.</div><div><br></div><div>If there are any further questions, please do not hesitate to contact us. Thank you!</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sat, Jul 9, 2022 at 6:08 PM Dave Taht <<a href="mailto:dave.taht@gmail.com">dave.taht@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">While I deeply appreciate y'all citing our work in this paper,<br>
<br>
<a href="https://zilimeng.com/papers/zhuge-sigcomm22.pdf" rel="noreferrer" target="_blank">https://zilimeng.com/papers/zhuge-sigcomm22.pdf</a><br>
<br>
it's not clear if the AP with your solution was actually<br>
fq_codeled[1]? We've also been battling a ton of regressions of late.<br>
<br>
PS It was good to see confirmation of long-tail latency at 99th<br>
percentile over 400ms in such a large study of gaming users.<br>
<br>
PPS Perhaps this paper would be of use?<br>
<a href="https://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=8469111" rel="noreferrer" target="_blank">https://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=8469111</a><br>
<br>
[1] <a href="https://forum.openwrt.org/t/aql-and-the-ath10k-is-lovely/59002/621" rel="noreferrer" target="_blank">https://forum.openwrt.org/t/aql-and-the-ath10k-is-lovely/59002/621</a><br>
<br>
-- <br>
FQ World Domination pending: <a href="https://blog.cerowrt.org/post/state_of_fq_codel/" rel="noreferrer" target="_blank">https://blog.cerowrt.org/post/state_of_fq_codel/</a><br>
Dave Täht CEO, TekLibre, LLC<br>
</blockquote></div><br clear="all"><div><br></div>-- <br><div dir="ltr" class="gmail_signature"><div dir="ltr"><div><div dir="ltr"><span style="color:rgb(0,0,0);font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;line-height:22.4px;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;display:inline;float:none"><font face="arial, sans-serif">Cheers,</font></span><div style="color:rgb(0,0,0);font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;line-height:22.4px;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px"><font face="arial, sans-serif">----------------</font></div><div style="color:rgb(0,0,0);font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;line-height:22.4px;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px"><font face="arial, sans-serif">Zili Meng</font></div><div style="color:rgb(0,0,0);font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;line-height:22.4px;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px"><font face="arial, sans-serif">Web: <a href="https://zilimeng.com/" target="_blank">https://zilimeng.com</a></font> <br></div></div></div></div></div>