dtaht

7 ms·

1.
by dtaht 2y ago
The difference between A and D in the 68000 was sometimes bothersome. I think riscv is cleaner to think about. That said, I loved the zero page on the 6502...
2.
by dtaht 2y ago
Too bitter. I referenced a little of that "adventure" here, in 2021... gfiber was attempting to restart with refreshing their now obsolete hardware... https://blog.cerowrt.org/post/trouble_in_paradise/
3.
by dtaht 2y ago
They laid us all off. They had huge plans - millions of users! Then they intersected reality in KC where all people wanted was 5Mbit service and free TV... There were many, many people working to perfect the settop box for example. We got f
4.
by dtaht 2y ago
I´m pretty fond of ¨Ending the anomaly¨: https://www.usenix.org/system/files/conference/atc17/atc17-h...
5.
Byte Queue Limits – The unauthorized biography(medium.com)
11 points by dtaht 2y ago|0 comments
6.
by dtaht 2y ago
The users that call less post-libreqos are the gamers & zoomers. I am sorry you are are so down on the lack of motivations care for customer service that many ISPs have. I am thrilled by how much libreqos's customer base cares.
7.
by dtaht 2y ago
I agree that the phrasing in the article is a bit confusing there! Pie had a severe problem in the rate estimator which was fixed in 2018, in Linux, at least: https://www.sciencedirect.com/science/article/abs/
8.
by dtaht 2y ago
In a lot of cases older is better. See also https://github.com/lynxthecat/cake-autorate for an active measurement tool...
9.
by dtaht 2y ago
I would replace the home router with an OpenWrt router.
10.
by dtaht 2y ago
I share your pain. I really really really share your pain.
11.
by dtaht 2y ago
BITAG published this a while back. https://www.bitag.org/latency-explained.php It's worth a read.
12.
by dtaht 2y ago
big fan of flent.org and this tool, written in rust - is coming along smartly. https://github.com/Zoxc/crusader
13.
by dtaht 2y ago
Being one of the authors of fq_codel, cake and to a small extent, LibreQos, I remain boggled after 15 years of trying, to get these simple points across.. Have some laughs: https://blog.apnic.net/2020/01/22/bu
14.
by dtaht 2y ago
OpenWrt depreciated pfifo_fast in favor of fq_codel in 2012, and have not looked back. It (and BQL) is ever present on all their Ethernet hardware and most of their wifi, no configuration required. It's just there. That said many OpenW
15.
by dtaht 2y ago
We have seen small ISPs get LibreQos running in under an hour, which includes installing ubuntu. Configuring it right and getting it fully integrated with the customer management system takes longer. We're pretty sure most of those ISP
16.
by dtaht 2y ago
speedtest.net added support for tracking latency under load a few years ago. they show ping during up/dl now. That's the number to show your colleague. However they tend to use something like the 75th percentile and throw out real
17.
by dtaht 2y ago
The rate limiter in question: https://github.com/cilium/cilium/issues/29083
18.
by dtaht 2y ago
It really is astounding to me how so many still do not understand that tcp is not a function call, or behaviors like slow start and congestion avoidance. Recently a new rate limiter for TCP went by that was so terribly, terribly broken, and
19.
by dtaht 2y ago
My favorite book of his was actually one of his earliest - Zodiac.
20.
by dtaht 2y ago
Thank you. I enjoyed the sense of play and this story more than anything I have read about the internet in a long time. I am def burned out, and need to come up with something frivolous. I am reminded of Richard Feynman´s story of spending
21.
Congestion Control – using people as packets(blog.apnic.net)
1 points by dtaht 2y ago|0 comments
22.
by dtaht 2y ago
You are citing amdahl's law: https://en.wikipedia.org/wiki/Amdahl%27s_law
23.
All the reasons bufferbloat isn't a problem(randomneuronsfiring.com)
2 points by dtaht 2y ago|0 comments
24.
by dtaht 3y ago
one of my sadnesses is so few tests, except those designed by the bufferbloat project, test up + down + latency at the same time. I like this new one: https://github.com/Zoxc/crusader/releases/tag/v0.0.10
25.
by dtaht 3y ago
most games run at 64Kbits/sec or 120Kbits and FQ helps those "mice" flows a lot, by giving them their own lane. If also, the greedy protocols like TCP or QUIC back off on filling up buffers (via an AQM) before a gamer would n
26.
by dtaht 3y ago
lastly, it is not just TCP that AQMs can control, but any TCP-friendly congestion control - Quic - which is udp based - plays by those rules. Most of our videoconferencing applications in their bandwidth seeking phase, also. QUIC's ori
27.
by dtaht 3y ago
Thank you for the steer to that article, it has some errors. ECN is not in use at starlink (yet), so far as I can tell. The AQM in place just uses conventional - and timely - packet drop, which is the principal signal for congestion control
28.
by dtaht 3y ago
WRED is so obsolete... https://en.wikipedia.org/wiki/CoDel
29.
by dtaht 3y ago
It is fq_codel on the wifi: https://en.wikipedia.org/wiki/CoDel
30.
Starlink cuts P99 Latency by 60% [pdf](api.starlink.com)
27 points by dtaht 3y ago|16 comments

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