From: Jonathan Morton <chromatix99@gmail.com>
To: "Luis E. Garcia" <luis@bitamins.net>
Cc: cake@lists.bufferbloat.net
Subject: Re: [Cake] A quick question about FQ_CoDel vs Cake
Date: Thu, 6 Apr 2017 20:06:04 +0300 [thread overview]
Message-ID: <3FFFF4B7-6DF7-4F7B-8F2D-5E22E27769FB@gmail.com> (raw)
In-Reply-To: <CALnBQ5=7fybwwKNqZMnQJAScFHeygmp6D7LcU2=JMpG1LrgLeQ@mail.gmail.com>
> On 6 Apr, 2017, at 16:51, Luis E. Garcia <luis@bitamins.net> wrote:
>
> I've been doing some testing of Cake on LEDE (WD MyNet 750) and on EdgeOS (Ubiquity ERPoe). One big question that I have is why does Cake have a higher/better average throughput than FQ_CoDel? The graph seems a bit smoother through the speed test.
>
> The test are against a 10down/2up Mbps connection from a local provider.
The main difference that’s probably responsible for this is Cake’s integrated deficit-mode shaper, which is more accurate on short timescales than the more typical token-bucket shaper that fq_codel is used with.
There’s also some difference in the Codel implementation which might or might not be relevant, specifically in the calculation of “count” after a relatively brief exit from dropping state.
- Jonathan Morton
next prev parent reply other threads:[~2017-04-06 17:06 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-04-06 13:51 Luis E. Garcia
2017-04-06 17:06 ` Jonathan Morton [this message]
2017-04-07 2:51 ` Luis E. Garcia
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=3FFFF4B7-6DF7-4F7B-8F2D-5E22E27769FB@gmail.com \
--to=chromatix99@gmail.com \
--cc=cake@lists.bufferbloat.net \
--cc=luis@bitamins.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