From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-qt0-x22b.google.com (mail-qt0-x22b.google.com [IPv6:2607:f8b0:400d:c0d::22b]) (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 090D93B2A4 for ; Sat, 4 Aug 2018 07:40:45 -0400 (EDT) Received: by mail-qt0-x22b.google.com with SMTP id b15-v6so8938146qtp.11 for ; Sat, 04 Aug 2018 04:40:44 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:from:date:message-id:subject:to :content-transfer-encoding; bh=/SZWeISMwtAt1l9Q2kdyHosJcwwuJD8AfC8eZdNSCLU=; b=g5fKMPFykD0FPgMnLWsd+zwxdmxCsqiT5N1QFqKeOoWwJAM5jDMl/ZjO5WdJKCUuMo R1P0XXy11Nyooo8dDZh1dLdYrIYKdn8B2d9RroFKoquBz/pClIuLmKt/jqz9nEMjHfil oeXXsu67J1N2tkmidFQgtIEd+vm3MHSGu4dRLIyWJT/lDg13TpqsluSPyHPs6BaZtYr4 K+xc6ZZKIEc14TyKNtaq/DWWhDm9z1NlqtGOC/VFZOUhHF4cu8OzyoJr1d4N+w9eGXEC 2w9pL3MEwibK4ZM8aHZIfeL9otkr3hQb30C3tNcs7TXtO7PxYn9R9wlKtKuhYTJqMqkI /E8A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:from:date:message-id:subject:to :content-transfer-encoding; bh=/SZWeISMwtAt1l9Q2kdyHosJcwwuJD8AfC8eZdNSCLU=; b=BOqOJXCrGr7MN6mIfFmx8vSGxZnI6lcYn+kn+JFV1pE0axfSKliAfzk2hBzFMp6WOu 2CZRM34PczRkL1myLJOj3Hx2mrRdkMyu9y3zOFL/kpfFsH536RZ53L83mJnSdC331fng mY0ScX4s4OV7JNqWLpXixUuZAF+Y40PSlCJQr5WvZ9VBu9N5TtAqOoyBsYB0gS+MZD78 yiAvK3I6uJPkilpaoUvJqi4zighc9Np46NN7UfjiC4G6HDfV5f4R1L1aLooXVl2eGNMw Kn6qRH1uPC1i9IWhIbsB5wTQJ+91hGAgGPt1v2fhcw18gy1AYZFzrV/EYJLxJ6nqcGlp UMww== X-Gm-Message-State: AOUpUlG/NCac1xCtyynEhGdJ5AR11HUqWUYitftEtls62K0PdzDl8MVe 80GAQrm9pQslZbUXWYQIxGP3pINX+yiomrmAZa6nwg== X-Google-Smtp-Source: AAOMgpfgma6yMDQMPgADYgAUewnHzWQEhTYYpI+cBhrkYHiPYISA8c4oZs8T+3rdfdyvKx3yQ99TDMIuO4xhsChzgGI= X-Received: by 2002:aed:2686:: with SMTP id q6-v6mr7377712qtd.199.1533382844205; Sat, 04 Aug 2018 04:40:44 -0700 (PDT) MIME-Version: 1.0 From: Dave Taht Date: Sat, 4 Aug 2018 04:41:44 -0700 Message-ID: To: Cake List Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Subject: [Cake] ebpf policing? 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: Sat, 04 Aug 2018 11:40:45 -0000 Writing a modern policer in ebpf is feasible. it's got nsec timestamping, counters, threads, lots of potential parallelism. Loops that have to be carefully bound. The worst possible config api. A nice statistics export system. Classic policers use token buckets, but anyone up for codel, time_per_byte, framing awareness and deficits, and a little aqm? --=20 Dave T=C3=A4ht CEO, TekLibre, LLC http://www.teklibre.com Tel: 1-669-226-2619