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[73.241.150.70]) by smtp.gmail.com with ESMTPSA id 207sm557947ywm.67.2019.02.23.12.43.52 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sat, 23 Feb 2019 12:43:53 -0800 (PST) Subject: Re: [PATCH v2 bpf-next 0/9] bpf: Network Resource Manager (NRM) To: Alexei Starovoitov Cc: David Ahern , brakmo , netdev , Martin Lau , Alexei Starovoitov , Daniel Borkmann , Kernel Team References: <20190223010703.678070-1-brakmo@fb.com> <184fd1a4-451e-2585-6aad-d9b0b10fd9aa@gmail.com> <2507e7b5-2ffa-e080-698a-18a7b0ee36ac@gmail.com> <20190223204046.zjvcxh7cgzshqllm@ast-mbp.dhcp.thefacebook.com> From: Eric Dumazet Message-ID: <49fbc4c9-6e8d-5115-0860-e418427a2ce5@gmail.com> Date: Sat, 23 Feb 2019 12:43:51 -0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.9.1 MIME-Version: 1.0 In-Reply-To: <20190223204046.zjvcxh7cgzshqllm@ast-mbp.dhcp.thefacebook.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org On 02/23/2019 12:40 PM, Alexei Starovoitov wrote: > On Sat, Feb 23, 2019 at 10:39:53AM -0800, Eric Dumazet wrote: >> >> >> On 02/22/2019 07:03 PM, David Ahern wrote: >>> On 2/22/19 8:06 PM, brakmo wrote: >>>> Network Resource Manager is a framework for limiting the bandwidth used >>>> by v2 cgroups. It consists of 4 BPF helpers and a sample BPF program to >>>> limit egress bandwdith as well as a sample user program and script to >>>> simplify NRM testing. >>> >>> 'resource manager' is a really generic name. Since you are referring to >>> bandwidth, how about renaming to Network Bandwidth Manager? >>> >> >> Or just use the normal word for a policer ... >> >> Really this is beyond me that TCP experts can still push policers out there, >> they are really a huge pain. > > hmm. please see our NRM presentation at LPC. > It is a networking _resource_ management for cgroups. > Bandwidth enforcement is a particular example. > It's not a policer either. > Well, this definitely looks a policer to me, sorry if we disagree, this is fine.