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From: Eric Dumazet <eric.dumazet@gmail.com>
To: "Toke Høiland-Jørgensen" <toke@toke.dk>
Cc: make-wifi-fast@lists.bufferbloat.net, linux-wireless@vger.kernel.org
Subject: Re: [Make-wifi-fast] [PATCH v3] mac80211: Dynamically set CoDel parameters per station
Date: Thu, 06 Apr 2017 03:51:55 -0700	[thread overview]
Message-ID: <1491475915.10124.75.camel@edumazet-glaptop3.roam.corp.google.com> (raw)
In-Reply-To: <20170406093826.16626-1-toke@toke.dk>

On Thu, 2017-04-06 at 11:38 +0200, Toke Høiland-Jørgensen wrote:

> +
> +	if (thr && thr < STA_SLOW_THRESHOLD * sta->local->num_sta) {
> +		sta->cparams.target = MS2TIME(50);
> +		sta->cparams.interval = MS2TIME(300);
> +		sta->cparams.ecn = false;
> +	} else {
> +		sta->cparams.target = MS2TIME(20);
> +		sta->cparams.interval = MS2TIME(100);
> +		sta->cparams.ecn = true;
> +	}
> +}

Why ECN is flipped on/off like that ? ECN really should be an admin
choice.

Also, this change in parameters looks suspect to me, adding a bimodal
behavior. I would consult Kathleen and Van on this possibility.

  reply	other threads:[~2017-04-06 10:51 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-09-10 19:33 [PATCH] mac80211: Dynamically set CoDel parameters per station Toke Høiland-Jørgensen
2016-09-11  0:09 ` kbuild test robot
     [not found] ` <CAGhGL2D8Hfed0VTsinnCbkK31dGTc=bYjzpPfrcLRnp+x6O3sA@mail.gmail.com>
2016-09-10 20:09   ` [Make-wifi-fast] " Toke Høiland-Jørgensen
2016-09-11  3:16   ` Loganaden Velvindron
2017-04-05 16:18 ` [PATCH v2] " Toke Høiland-Jørgensen
2017-04-06  7:56   ` kbuild test robot
2017-04-06  8:45   ` kbuild test robot
2017-04-06  9:38   ` [PATCH v3] " Toke Høiland-Jørgensen
2017-04-06 10:51     ` Eric Dumazet [this message]
2017-04-06 15:58       ` [Make-wifi-fast] " Toke Høiland-Jørgensen
2017-04-13 18:26         ` Dave Taht
2017-05-17 14:06     ` Johannes Berg
2017-05-19  9:27       ` Toke Høiland-Jørgensen

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