From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-oi0-x22d.google.com (mail-oi0-x22d.google.com [IPv6:2607:f8b0:4003:c06::22d]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by lists.bufferbloat.net (Postfix) with ESMTPS id 505CB3B260; Thu, 5 May 2016 11:32:16 -0400 (EDT) Received: by mail-oi0-x22d.google.com with SMTP id x201so106598014oif.3; Thu, 05 May 2016 08:32:16 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-transfer-encoding; bh=zlabZPsRZBEJinq8d1bwoCztAIcX2Qh+nauGIFDbB1o=; b=m+7nefIjArwWXLVT4biTPvIsyAfHEX4NfshZCyA/XMQp2Oi3mx6RBAOe/p+fuJtrei 4oufj8EbtwZxjoy9QJ2nsqPGCgv13TmF59GKhTHUwEiuMylF8oRPhGWgGdiriKeR23gD GSu3AalYR77B649V04/pyTFjaVsYqKJIaTxJbeOeq8O6toPqD8j5LvKTLyBsOo5RuTm0 AXtx4L6sXLzoKfSaWkh8/VQQPQXEm4+acejwoE2Wr/C94/ry0MBTfOKy0nt731WyzZH8 UhX53DeTBNl8SqVspztCE75nHy0EeU62VCO8a5gNhiNTSkjnZReK+XK6exq2XtrkW/uU ZSQQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:date :message-id:subject:from:to:cc:content-transfer-encoding; bh=zlabZPsRZBEJinq8d1bwoCztAIcX2Qh+nauGIFDbB1o=; b=E0xNPq9SIg226IboUHklhbgGSk2xO7Xv4u34hzP+gJDgIZtALCdfWN2sG12lF0ag5N AhQfmxmY/VrycPmx8AkKflJ4io2OsqhrctpXBbJ4kbnkbLHd0qEiknojK88UjWc50Mo+ BAVa+N4Tw+P8faRPy2gzYAZoxRpSLYjyJpyFFbc33bIbfWhKOM3dadEGPhukYMykKvnM pWnFIrF48kiNsg1fv11r8xW7boq/+oP2rWdCXgFT/A7Kk43R9Nt+ohG9TClBY/rfhbaD wEP0UacBRCpfEzd2d8bOXEynveHKZlDpRQqVfYhSTqbCpghhlEzngSw01ra2rrRVx7jA c8DA== X-Gm-Message-State: AOPr4FXpzUcwOelM7+K85RK7lvxPw9fweSJsGI6XcnydDPvuTpMWCZPoB9hS2J/X8TmfyXXTNJnNMfFfk1+h5Q== MIME-Version: 1.0 X-Received: by 10.202.185.214 with SMTP id j205mr6443592oif.68.1462462335798; Thu, 05 May 2016 08:32:15 -0700 (PDT) Received: by 10.202.81.76 with HTTP; Thu, 5 May 2016 08:32:15 -0700 (PDT) In-Reply-To: References: <1462125592.5535.194.camel@edumazet-glaptop3.roam.corp.google.com> <865DA393-262D-40B6-A9D3-1B978CD5F6C6@gmail.com> <1462128385.5535.200.camel@edumazet-glaptop3.roam.corp.google.com> <1462136140.5535.219.camel@edumazet-glaptop3.roam.corp.google.com> <1462201620.5535.250.camel@edumazet-glaptop3.roam.corp.google.com> <1462205669.5535.254.camel@edumazet-glaptop3.roam.corp.google.com> Date: Thu, 5 May 2016 08:32:15 -0700 Message-ID: From: Dave Taht To: Roman Yeryomin Cc: Eric Dumazet , Jonathan Morton , make-wifi-fast@lists.bufferbloat.net, "codel@lists.bufferbloat.net" , ath10k Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Subject: Re: [Codel] fq_codel_drop vs a udp flood X-BeenThere: codel@lists.bufferbloat.net X-Mailman-Version: 2.1.20 Precedence: list List-Id: CoDel AQM discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 05 May 2016 15:32:16 -0000 On Thu, May 5, 2016 at 7:53 AM, Roman Yeryomin wrot= e: > On 2 May 2016 at 19:14, Eric Dumazet wrote: >> On Mon, 2016-05-02 at 18:43 +0300, Roman Yeryomin wrote: >>> On 2 May 2016 at 18:07, Eric Dumazet wrote: >>> > On Mon, 2016-05-02 at 17:18 +0300, Roman Yeryomin wrote: >>> > >>> >> Imagine you are a video operator, have MacBook Pro, gigabit LAN and >>> >> NAS on ethernet side. You would want to get maximum speed. And >>> >> fq_codel just dropped it down to 550Mbps for TCP (instead of 750Mbps= ) >>> >> and to 30Mbps for UDP (instead of 900Mbps). >>> >> So, again, it looks broken to me. >>> > >>> > Can you show us your qdisc config ? >>> >>> Which build do you want? Before it broke or after? >>> >> >> >> I want to check your qdisc configuration, the one that you used and >> where you had fq_codel performance issues >> >> tc -s -d qdisc >> Looks fine. If you could sample that a few times during your various tests, that would be good. > qdisc fq_codel 0: dev eth0 root refcnt 2 limit 1024p flows 1024 > quantum 1514 target 5.0ms interval 100.0ms ecn > Sent 12306 bytes 128 pkt (dropped 0, overlimits 0 requeues 0) > backlog 0b 0p requeues 0 > maxpacket 0 drop_overlimit 0 new_flow_count 0 ecn_mark 0 > new_flows_len 0 old_flows_len 0 > qdisc mq 0: dev wlan0 root > Sent 29775 bytes 254 pkt (dropped 0, overlimits 0 requeues 0) > backlog 0b 0p requeues 0 > qdisc fq_codel 0: dev wlan0 parent :1 limit 1024p flows 1024 quantum > 1514 target 5.0ms interval 100.0ms ecn > Sent 0 bytes 0 pkt (dropped 0, overlimits 0 requeues 0) > backlog 0b 0p requeues 0 > maxpacket 0 drop_overlimit 0 new_flow_count 0 ecn_mark 0 > new_flows_len 0 old_flows_len 0 > qdisc fq_codel 0: dev wlan0 parent :2 limit 1024p flows 1024 quantum > 1514 target 5.0ms interval 100.0ms ecn > Sent 0 bytes 0 pkt (dropped 0, overlimits 0 requeues 0) > backlog 0b 0p requeues 0 > maxpacket 0 drop_overlimit 0 new_flow_count 0 ecn_mark 0 > new_flows_len 0 old_flows_len 0 > qdisc fq_codel 0: dev wlan0 parent :3 limit 1024p flows 1024 quantum > 1514 target 5.0ms interval 100.0ms ecn > Sent 29775 bytes 254 pkt (dropped 0, overlimits 0 requeues 0) > backlog 0b 0p requeues 0 > maxpacket 0 drop_overlimit 0 new_flow_count 0 ecn_mark 0 > new_flows_len 0 old_flows_len 0 > qdisc fq_codel 0: dev wlan0 parent :4 limit 1024p flows 1024 quantum > 1514 target 5.0ms interval 100.0ms ecn > Sent 0 bytes 0 pkt (dropped 0, overlimits 0 requeues 0) > backlog 0b 0p requeues 0 > maxpacket 0 drop_overlimit 0 new_flow_count 0 ecn_mark 0 > new_flows_len 0 old_flows_len 0 > > > Will try your patch now. > > Regards, > Roman --=20 Dave T=C3=A4ht Let's go make home routers and wifi faster! With better software! http://blog.cerowrt.org