From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-ob0-x241.google.com (mail-ob0-x241.google.com [IPv6:2607:f8b0:4003:c01::241]) (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 4FF153B260; Thu, 5 May 2016 10:53:27 -0400 (EDT) Received: by mail-ob0-x241.google.com with SMTP id n2so5117515obo.1; Thu, 05 May 2016 07:53:27 -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; bh=H/42i1r8ZzxtEVy3gydDVhU2wji9FO6ECLuyXnMcK5M=; b=BLLdGFuW8WTYR9eCen312PsovyCZHPZBCQ3XzcuuIxZ9u3kj5wMT2f952gnVUNehr3 FCB4ARs/ovE31RLXMyddOXRsjrOE//ygDci+xzDWuONYWuw+G1Ku2F6nQuIxXrgFgcOh pguIEKG0V0OyK6O/TT3NCXhCoeC+VQ5fWE7MXfy3GMXm2PP1aEub02g2B5P5oVNQXbZ+ dAVbvvPHkW9+ZdfC7MiQ5ctMOsNZevSR8EWCZ552fP7yFVMSlURVpRg2Y2fI5ikyalaD 6iHnogmNRvUcy7bExFg7FOY7+RdoCYRlyi22kcxbaqYZYBoCY12yCjG8xtR8ax9GpQxg gftg== 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; bh=H/42i1r8ZzxtEVy3gydDVhU2wji9FO6ECLuyXnMcK5M=; b=gbXf4Tyei9s0+BE9Pp1FAyv5WdyCOjQoC4hpke8Vc1MHp+zmzEBP1p3lI7J4aFznVc hFeAeoRYNkEqPIOalILAkSpEn3OiOe7b4wLw7jwaiKiMo+jhyl0DU1TLw4SD8Q6WOZoE 99IgoMxRWDD6ef+EokIpe9b7tnoU5Zp3uo9w/qp/0zGoW8PJDzr4/I0bZrsXJvtciic3 Rb+jGJql0L/4ypvCgDMmUD3mRPofHa+nNV6OFLAS227RKJRx/J+qZ1r4fmA03WFN2sVK lzgLNCKhfdSKX9IrPZoZnZZv4MRCTEh1jJ2T6tu9LcgWmuyyadLhTW/bLqu+/0Ca07iT FW8w== X-Gm-Message-State: AOPr4FUAkbW0EavvBbj94M4vcWlEBUmjiEszdelH45LmK6cV7MDAn7v784aObxgyRgfpwlwnc8z8YConiR/UOA== MIME-Version: 1.0 X-Received: by 10.182.24.104 with SMTP id t8mr6966713obf.1.1462460006736; Thu, 05 May 2016 07:53:26 -0700 (PDT) Received: by 10.202.252.9 with HTTP; Thu, 5 May 2016 07:53:26 -0700 (PDT) In-Reply-To: <1462205669.5535.254.camel@edumazet-glaptop3.roam.corp.google.com> 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 17:53:26 +0300 Message-ID: From: Roman Yeryomin To: Eric Dumazet Cc: Jonathan Morton , make-wifi-fast@lists.bufferbloat.net, "codel@lists.bufferbloat.net" , Dave Taht , ath10k Content-Type: text/plain; charset=UTF-8 Subject: Re: [Make-wifi-fast] [Codel] fq_codel_drop vs a udp flood X-BeenThere: make-wifi-fast@lists.bufferbloat.net X-Mailman-Version: 2.1.20 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 05 May 2016 14:53:27 -0000 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 > 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