[Cake] total download rate with many flows

George Amanakis g_amanakis at yahoo.com
Tue Nov 14 23:04:22 EST 2017

The problem I am describing in this thread appears only when using 
besteffort. If diffserv3 is used (without any further prioritization by 
manipulating DSCP bits) downstream is more stable and higher in 
throughput than with besteffort.

Also, in my case disabling BLUE (by commenting out 
cake_queue_{empty,full} and all p_drop parts in sch_cake.c and cobalt.c) 
does not make any difference.

On 11/14/2017 5:23 PM, Dave Taht wrote:
> because cobalt is more aggressive than codel. I've never believed in it.
> I'm sitting here trying to figure out how to get good ole regular cake
> to compile again.
> I just merged the new ack stuff into the codel branch.
> On Tue, Nov 14, 2017 at 2:13 PM, G. Amanakis via Cake
> <cake at lists.bufferbloat.net> wrote:
>> _______________________________________________
>> Cake mailing list
>> Cake at lists.bufferbloat.net
>> https://lists.bufferbloat.net/listinfo/cake
>> ---------- Forwarded message ----------
>> From: "G. Amanakis" <g_amanakis at yahoo.com>
>> To: Dave Taht <dave at taht.net>, George Amanakis via Cake <cake at lists.bufferbloat.net>
>> Cc:
>> Bcc:
>> Date: Tue, 14 Nov 2017 17:13:16 -0500
>> Subject: Re: [Cake] total download rate with many flows
>> Yes, it is. I am building from the cobalt branch. What makes you believe otherwise? Would you expect a different behaviour?
>> On November 14, 2017 3:11:04 PM EST, Dave Taht <dave at taht.net> wrote:
>>> George Amanakis via Cake <cake at lists.bufferbloat.net> writes:
>>>>   From: George Amanakis <g_amanakis at yahoo.com>
>>>>   Subject: Re: [Cake] total download rate with many flows
>>>>   To: David Lang <david at lang.hm>
>>>>   Cc: cake at lists.bufferbloat.net
>>>>   Date: Mon, 13 Nov 2017 21:49:53 -0500 (17 hours, 20 minutes, 42 seconds ago)
>>>>   Dear David,
>>>>   I agree. My point is that currently ingress mode seems to be dropping more
>>>>   packets than necessary to keep senders from bottlenecking the connection (when
>>>>   there is a large number of concurrent flows, >8). And right now, ingress mode is
>>>>   the only mode that achieves this in situations such as Windows updates.
>>> Is cobalt enabled in your build?
>> --
>> Sent from my Android device with K-9 Mail. Please excuse my brevity.

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