From: "Toke Høiland-Jørgensen" <toke@toke.dk>
To: Pete Heist <pete@heistp.net>
Cc: Cake List <cake@lists.bufferbloat.net>
Subject: Re: [Cake] Using cake to shape 1000’s of users.
Date: Tue, 31 Jul 2018 00:17:56 +0200 [thread overview]
Message-ID: <87h8kgz7u3.fsf@toke.dk> (raw)
In-Reply-To: <050BE1E9-5582-422B-B9C4-958EFEB4749D@heistp.net>
Pete Heist <pete@heistp.net> writes:
>> On Jul 30, 2018, at 1:28 PM, Toke Høiland-Jørgensen <toke@toke.dk> wrote:
>>
>> Pete Heist <pete@heistp.net> writes:
>>
>>> Couldn’t it still be made so now? Not sure of the performance impact
>>> though.
>>
>> It could, but it would take some care. There's the issue of
>> power-of-two-ness and avoiding divides that Jonathan pointed out, and
>> the memory allocation would be complicated somewhat. Certainly doable,
>> but I'm not sure it's worth it for its own sake if the plan is to build
>> a new qdisc anyway...
>
> Fair enough, we’ll see.
>
> The challenge now is eBPF classification doesn’t look like it will be
> usable on 3.16 (on FreeNet's routers). Maps weren’t introduced until
> 3.18 and tc support in 4.1. I’ll see what upgrades are possible.
>
> Also, if ISP Cake is a new qdisc, I don’t see now why it would need to
> support kernel versions where scalable classification by IP or MAC
> isn’t practical to do. The hard lower limit seems like 4.1, but also
> direct-action mode in 4.4 would be good for performance, and without
> the LPM trie in 4.11, classification by subnet would be more
> difficult...
Yeah, you'll probably need a newish kernel to do all the stuff you want
with eBPF...
-Toke
next prev parent reply other threads:[~2018-07-30 22:17 UTC|newest]
Thread overview: 54+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-07-17 7:24 Felix Resch
2018-07-17 16:59 ` Dave Taht
2018-07-26 15:46 ` Dan Siemon
2018-07-26 15:48 ` Dave Taht
2018-07-26 18:07 ` Dan Siemon
2018-07-28 15:51 ` Dave Taht
2018-07-28 16:11 ` Jonathan Morton
2018-07-28 16:36 ` Dave Taht
2018-07-26 17:42 ` Toke Høiland-Jørgensen
2018-07-26 18:10 ` Dan Siemon
2018-07-26 21:09 ` Toke Høiland-Jørgensen
2018-07-26 21:38 ` Jonathan Morton
2018-07-27 9:25 ` Pete Heist
2018-07-27 14:04 ` Dan Siemon
2018-07-27 18:58 ` Jonathan Morton
2018-07-28 8:56 ` Toke Høiland-Jørgensen
2018-07-28 15:04 ` Dave Taht
2018-07-28 16:19 ` Jonathan Morton
2018-07-28 16:39 ` Dave Taht
2018-07-28 17:01 ` Pete Heist
2018-07-28 17:37 ` Pete Heist
2018-07-28 17:52 ` Dave Taht
2018-07-28 17:56 ` Dave Taht
2018-07-28 18:12 ` Toke Høiland-Jørgensen
2018-07-29 0:17 ` Pete Heist
2018-07-29 19:14 ` Toke Høiland-Jørgensen
2018-07-30 9:14 ` Pete Heist
2018-07-30 10:09 ` Sebastian Moeller
2018-07-30 10:55 ` Toke Høiland-Jørgensen
2018-07-30 11:05 ` Pete Heist
2018-07-30 11:28 ` Toke Høiland-Jørgensen
2018-07-30 22:10 ` Pete Heist
2018-07-30 22:17 ` Toke Høiland-Jørgensen [this message]
2018-07-31 7:31 ` Jonathan Morton
2018-07-30 10:55 ` Pete Heist
2018-07-30 11:05 ` Jonathan Morton
2018-07-28 17:53 ` Jonathan Morton
2018-07-28 18:07 ` Dave Taht
2018-07-28 18:17 ` Toke Høiland-Jørgensen
2018-07-28 19:35 ` [Cake] 1000s " Dave Taht
2018-07-29 23:24 ` [Cake] Using cake to shape 1000’s " Dave Taht
2018-08-07 1:46 ` Dan Siemon
2018-07-28 7:18 ` Pete Heist
2018-07-28 8:06 ` Jonathan Morton
2018-07-28 16:41 ` Pete Heist
2018-07-28 17:32 ` [Cake] isp economics Dave Taht
2018-07-28 18:39 ` Pete Heist
2018-07-28 19:03 ` Dave Taht
2018-07-28 20:00 ` Pete Heist
2018-07-29 5:49 ` Loganaden Velvindron
2018-07-28 19:09 ` Dave Taht
-- strict thread matches above, loose matches on Subject: below --
2018-07-16 18:39 [Cake] Using cake to shape 1000’s of users Mike
2018-07-16 19:01 ` Jonathan Morton
2018-07-16 19:13 ` Michel Blais
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
List information: https://lists.bufferbloat.net/postorius/lists/cake.lists.bufferbloat.net/
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=87h8kgz7u3.fsf@toke.dk \
--to=toke@toke.dk \
--cc=cake@lists.bufferbloat.net \
--cc=pete@heistp.net \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox