From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.toke.dk (mail.toke.dk [45.145.95.4]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.bufferbloat.net (Postfix) with ESMTPS id BE9CF3B2A4 for ; Fri, 24 May 2024 09:58:12 -0400 (EDT) From: Toke =?utf-8?Q?H=C3=B8iland-J=C3=B8rgensen?= DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=toke.dk; s=20161023; t=1716559089; bh=ArYw/OFzxwNlLfeRj0+OJ67aXsPI6dPF1zwQo9yT1vw=; h=From:To:Subject:In-Reply-To:References:Date:From; b=y0X8EXphn1/5uzTveH/uSDRfg4VadVw0x/tg8VIDqyMZp8PE2ulQRHuG31Le6peXk CUVhuFxxnh/alWXXqyK3MWGkt1h//4Pf49ZAlPcSihBClpr1FRCsYPWXonLaMNdl+3 BXT9luheQs39H6GpySxE+KrBNPz7PDnFBl9ZixbVDisgDl8x3IvFVVc5obV8Smk2CA fPKQS4hn6qruoN1EP0cvYlWphVGfM+1f6GMX4pO0sWnK3KUSAkLkJ7rOtxEIIuQzbn 1IsKkqbaaAU2M3rQxTja+jtxta8cUB98lplvAwhP2garBCoGEt2M7y+yM6ROfgHZym 1LjmkJcYWaVZw== To: Linus =?utf-8?Q?L=C3=BCssing?= , bloat@lists.bufferbloat.net In-Reply-To: References: Date: Fri, 24 May 2024 15:58:09 +0200 X-Clacks-Overhead: GNU Terry Pratchett Message-ID: <878qzzl3bi.fsf@toke.dk> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Subject: Re: [Bloat] Congestion control with FQ-Codel/Cake with Multicast? X-BeenThere: bloat@lists.bufferbloat.net X-Mailman-Version: 2.1.20 Precedence: list List-Id: General list for discussing Bufferbloat List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 24 May 2024 13:58:12 -0000 Linus L=C3=BCssing via Bloat writes: > I was wondering, have there been any tests with multicast on a > recent OpenWrt with FQ-Codel or Cake, do these queueing machanisms > work as a viable, fair congestion control option for multicast, > too? Has anyone looked at / tested this? FQ-CoDel or CAKE on the interface probably wouldn't help much (there's a reason we put it into the WiFi stack instead of the qdisc layer). However, AQL in the WiFi stack could control the multicast/broadcast queue. It does not currently do so, however, but Felix sent an RFC patch to enable this back in February. So this may turn up at some point in the future in a WiFi stack near you: https://lore.kernel.org/r/20240209184730.69589-1-nbd@nbd.name -Toke