From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-qk0-x229.google.com (mail-qk0-x229.google.com [IPv6:2607:f8b0:400d:c09::229]) (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 C3A623B2E2 for ; Thu, 17 Mar 2016 07:12:57 -0400 (EDT) Received: by mail-qk0-x229.google.com with SMTP id s68so33438495qkh.3 for ; Thu, 17 Mar 2016 04:12:57 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bobcopeland-com.20150623.gappssmtp.com; s=20150623; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to:user-agent; bh=asJmeYjQ0L4t8YVEKfSXYf5HZg5v+k4h96oxF5iaKII=; b=kVQHJ4B9FPrO+SeRcVsvIKvG9MzPzO/EivV0BIqlWoFHOBRQG/sfwAegB4z7Q/gppY wm5+IQ0O8SeXQbI60EJSb3tz8fu9WAnECo3+dZjI2xRFBSJxfqJofANizgzaCPGunCF5 rjw/9wW+xRsr0Hgtgkyu0yr+/kRD78fSNNIfLeICJ2hnZ9LKLR2teDBlJVS4CmT+xsBx AKGyI8b7rvdAKio89/e9UVisOfKAooyuXAT/gdNTPFZprCc/ofTwusz+wS3BikCXzTKg T9LrAtx676MRwNiK1Gmkm72KvPiDLOqoARiiKGSZ0Rrh/pc6fX4yeC4xHTbUD4MNN6DZ M++g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to:user-agent; bh=asJmeYjQ0L4t8YVEKfSXYf5HZg5v+k4h96oxF5iaKII=; b=Sg/LCJWO2VVrI2TUJOX+B+kKXWZxjoa5wd7aV1/0edTxSOQyXxouiFkXTdGTWRyVtc SstBEX9P5d2TXUV8+fLubHfvEDOONJQfAarhCWSYP21s3j1ZS5e7yXVTEj9rxJkOFgAD 9xWAjSugtUH6mC70FYoRKmhj8YM3rZI0CgRQmZkiJEA150ljdqyKeeOIV7N3k5iuRfi7 tJVSZ04odquiYgbWCHcy9CEHZMDzZgCOGnaNHUOup4bQA69gvHpeoKPAemlJonDzJfuC hI/4b6OLWM3oLWS0TMnDpLXfbD4Knrxg69jt23/Zkewf33uozN9hG6Q89iKQJolAXyaX jL8A== X-Gm-Message-State: AD7BkJKSpRRdoTVZSikIZw1Q81ZZsnRewVtsPHbAuTCaoj0L1PvMyefZ/oq4jUKGp41+LA== X-Received: by 10.55.78.131 with SMTP id c125mr13131264qkb.71.1458213177273; Thu, 17 Mar 2016 04:12:57 -0700 (PDT) Received: from hash ([2001:470:1d:6db:230:48ff:fe9d:9c89]) by smtp.gmail.com with ESMTPSA id o62sm3559983qkl.28.2016.03.17.04.12.56 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 17 Mar 2016 04:12:56 -0700 (PDT) Received: from bob by hash with local (Exim 4.84_2) (envelope-from ) id 1agVrE-00075M-Kx; Thu, 17 Mar 2016 07:12:48 -0400 Date: Thu, 17 Mar 2016 07:12:48 -0400 From: Bob Copeland To: Michal Kazior Cc: Jasmine Strong , Dave Taht , Network Development , linux-wireless , "ath10k@lists.infradead.org" , "codel@lists.bufferbloat.net" , make-wifi-fast@lists.bufferbloat.net Message-ID: <20160317111248.GC1238@localhost> References: <1458123478-1795-1-git-send-email-michal.kazior@tieto.com> <20160316185531.GA1771@localhost> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.23 (2014-03-12) X-Mailman-Approved-At: Fri, 25 Mar 2016 11:52:32 -0400 Subject: Re: [Make-wifi-fast] [RFCv2 0/3] mac80211: implement fq codel 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, 17 Mar 2016 11:12:57 -0000 On Thu, Mar 17, 2016 at 09:55:03AM +0100, Michal Kazior wrote: > If you consider Wi-Fi is half-duplex and latency in the entire stack > (for processing ICMP and UDP_RR) is greater than 11e contention window > timings you can get your BE flow responses with extra delay (since > other queues might have responses ready quicker). Got it, that makes sense. Thanks for the explanation! -- Bob Copeland %% http://bobcopeland.com/