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[2a0c:4d80:42:443::2]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4835d92267bsm778389855e9.0.2026.02.17.05.23.51 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 17 Feb 2026 05:23:51 -0800 (PST) Received: by alrua-x1.borgediget.toke.dk (Postfix, from userid 1000) id 1EBA75162A9; Tue, 17 Feb 2026 14:23:52 +0100 (CET) From: Toke =?utf-8?Q?H=C3=B8iland-J=C3=B8rgensen?= To: dave seddon , Frantisek Borsik Cc: Cake List , codel@lists.bufferbloat.net, bloat , Jeremy Austin via Rpm , Make-Wifi-fast , ryan@rkhtech.org In-Reply-To: References: X-Clacks-Overhead: GNU Terry Pratchett Date: Tue, 17 Feb 2026 14:23:52 +0100 Message-ID: <87ecmjpkpj.fsf@toke.dk> MIME-Version: 1.0 X-Mimecast-Spam-Score: 0 X-Mimecast-MFC-PROC-ID: Mmsf8cLE94AdGIxdZiufIhgYhCHpqv6om-R3HyD-V0w_1771334633 X-Mimecast-Originator: redhat.com Content-Type: text/plain Message-ID-Hash: JEU3VPVH5IA644B7WX3ZDUBYW4G37YKQ X-Message-ID-Hash: JEU3VPVH5IA644B7WX3ZDUBYW4G37YKQ X-MailFrom: toke@redhat.com X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; loop; banned-address; emergency; member-moderation; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header X-Mailman-Version: 3.3.10 Precedence: list Subject: [Bloat] Re: [Cake] CAKE-MQ merged to OpenWrt 25.12 today (February 15) List-Id: General list for discussing Bufferbloat Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: dave seddon writes: > === Pre-flight Complete === > Running 6 test points > > [1/6] qdisc=fq_codel flows=1 tool=iperf2 > Switching qdisc to fq_codel... > Throughput: 9.41 Gbps > [2/6] qdisc=fq_codel flows=10 tool=iperf2 > Throughput: 9.43 Gbps > [3/6] qdisc=cake flows=1 tool=iperf2 > Switching qdisc to cake... > Throughput: 6.93 Gbps > [4/6] qdisc=cake flows=10 tool=iperf2 > Throughput: 4.37 Gbps <---- cake > [5/6] qdisc=mq-cake flows=1 tool=iperf2 > Switching qdisc to mq-cake... > Throughput: 7.17 Gbps > [6/6] qdisc=mq-cake flows=10 tool=iperf2 > Throughput: 9.44 Gbps <----- > mq-cake ... Actually, that's interesting. higher than fq_codel Are you running fq_codel as the root qdisc? Because in that case you're running through the single qdisc lock, which could explain the difference. Try running separate fq_codel instances beneath an 'mq' qdisc as the root. Also, if you're not setting a shaping rate, cake_mq is basically the same as just installing an mq qdisc at the root and having separate cake instances beneath that. So to test the multi-core shaper algorithm you'll need to set a rate ('bandwidth' parameter). -Toke