From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wr1-x42e.google.com (mail-wr1-x42e.google.com [IPv6:2a00:1450:4864:20::42e]) (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 57D493BA8E for ; Thu, 6 Sep 2018 14:36:30 -0400 (EDT) Received: by mail-wr1-x42e.google.com with SMTP id 20-v6so12405495wrb.12 for ; Thu, 06 Sep 2018 11:36:30 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=heistp.net; s=google; h=mime-version:subject:from:in-reply-to:date:cc :content-transfer-encoding:message-id:references:to; bh=BGedW9IMA8SwWa6Jdw3RqbybWs0ykiSK3XEjSHkv5dw=; b=TxSXPtMIIGGidjx/32WzL07Hj/UyZ1vkXJ3fz7+P92T2BhbNih9VygOLPH/jkpLJPY IcWBjPe5U3b1AEJH9gl6043xrRXjaqQyYDMLmxCx0EsqBMb2alokO4h0TcLRaaJWzk+B lIGVnitmCgyR/KisKuzkbHMYVDYEinjWlPlQlhqll7FdbmpQlLznoRRWnUFF6Efl2i4c hWYfL88peM8hn5k7gqdZ37x+Bb/II4T+FQxgzHnzfO6JahZtOD/wkSP0zoZcBFFceEr+ 22Wz861zkHj040qQbuo37mKnSw2kNuMak6/GW1M+NoqsMYjm+5XdlDhKBW0z2XFFGKFF +M2w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:subject:from:in-reply-to:date:cc :content-transfer-encoding:message-id:references:to; bh=BGedW9IMA8SwWa6Jdw3RqbybWs0ykiSK3XEjSHkv5dw=; b=VXSuD3pN8Kqv1zGZTjF/M3kTn9o01bxEhfXAAAoejmXK5mdAfEtpacWDbCc/Rj796q peaMTU59AVMnVuUxWu0CSCawFjLjyyviDOoLmy6U8OLCvvlOzgmQRjY7Mu1rYUZVi0fB X0ccFKwtC8QMRKTe46FIs7jwa8dUp/N7D/e4Y+75K5hRk/9njzg6Fu3SpgjlKimkQoHE JjqsCVjn3kVoTrrhSdL4Qi3MF04AueSMCaG0Q3YrD/Yfx/jKHU/ME/GIodfrauQaM6FX ZvqJbtV49wblNy3aj2Ig/Qv4FTl9VBJwAhc5uWeskX0r3hcI8ESB6KJua+YjZghOS1HO DIGw== X-Gm-Message-State: APzg51DgXpT2s7sqm8bnagJ1/P8KLNmuYZ1teNRJCla7EeKG62a7Aikx 8lER0BadoW5RTiG9/RxVsBtTLQ== X-Google-Smtp-Source: ANB0VdZTbzm/Ux+SKjRj8uKgNIm850tV7YfH1UPbZvgClObgtWTnkbQ/fu+WQmHtI6gr5GkaxOfJCw== X-Received: by 2002:adf:f410:: with SMTP id g16-v6mr3546751wro.256.1536258989513; Thu, 06 Sep 2018 11:36:29 -0700 (PDT) Received: from tron.luk.heistp.net (h-1169.lbcfree.net. [185.193.85.130]) by smtp.gmail.com with ESMTPSA id x65-v6sm6595596wmg.39.2018.09.06.11.36.28 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 06 Sep 2018 11:36:29 -0700 (PDT) Content-Type: text/plain; charset=utf-8 Mime-Version: 1.0 (Mac OS X Mail 11.5 \(3445.9.1\)) From: Pete Heist In-Reply-To: Date: Thu, 6 Sep 2018 20:36:27 +0200 Cc: Cake List Content-Transfer-Encoding: quoted-printable Message-Id: References: <3E647031-D865-41B1-9C3A-6D34DB291005@heistp.net> To: Dave Taht X-Mailer: Apple Mail (2.3445.9.1) Subject: Re: [Cake] fq_codel_fast X-BeenThere: cake@lists.bufferbloat.net X-Mailman-Version: 2.1.20 Precedence: list List-Id: Cake - FQ_codel the next generation List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 06 Sep 2018 18:36:30 -0000 > On Sep 6, 2018, at 7:22 PM, Dave Taht wrote: >=20 > There was a very good paper or two (I think luca co-authored one) that > showed that "active flows" were generally measured in the mid 200s in > nearly any scenario. I agreed with that which was in part why I felt > we could stick > with 1024 queues, a direct mapped hash, and a couple collisions. So I=E2=80=99m not sure if this is a great way to gauge active flow = counts through a router, but at 8pm: root@FreeNetVysina:~# grep ESTABLISHED /proc/net/ip_conntrack | wc -l 446 FreeNetJerab:~# grep ESTABLISHED /proc/net/ip_conntrack | wc -l 181 FreeNetOldrichova:~# grep ESTABLISHED /proc/net/ip_conntrack | wc -l 228 Far from my estimate of tens. Many of those can be idle connections, I = suspect. 60-80% of them are http/s.