From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-lf1-x131.google.com (mail-lf1-x131.google.com [IPv6:2a00:1450:4864:20::131]) (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 94D503B29D for ; Thu, 28 Sep 2023 08:33:14 -0400 (EDT) Received: by mail-lf1-x131.google.com with SMTP id 2adb3069b0e04-50482ba2b20so3231771e87.1 for ; Thu, 28 Sep 2023 05:33:14 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1695904393; x=1696509193; darn=lists.bufferbloat.net; h=to:references:message-id:content-transfer-encoding:cc:date :in-reply-to:from:subject:mime-version:from:to:cc:subject:date :message-id:reply-to; bh=ZwzaEuvBXPUeUoST3PsAgdusrHEd/YH4V+UaijAUfes=; b=lcINKv1royizHtRpvzSjXd9KZSMEBQ7nUdrlxe2Pr+woXrcMCPN2AGEVd/P6YgibAK hevlmxtktjtMr/chYWkAGa9WAnfJAfwDfuXAWq0Bh9wdINBUpG+PaTfyUk2wvK7RrqBz up+dDzVfgsbYZ4TqbWHAHq3tX6DFi+s4Tp/qYNgFtUeV2w09+SpbAj4PculuTbBeiYDh r2/Jgq+dMvVwIHhvD0kIwWtezC1pM2EE4ZCXhbwDd4XO2GBcATafI6G+mFOVuwWohWg3 APpjabvZJt39ExXDfiR0+iyc4Izvso1op1+N+ekFKMwA9YBynq9AgyJ1h/gE0sXc0DNJ 48rw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1695904393; x=1696509193; h=to:references:message-id:content-transfer-encoding:cc:date :in-reply-to:from:subject:mime-version:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=ZwzaEuvBXPUeUoST3PsAgdusrHEd/YH4V+UaijAUfes=; b=r/p7iNePTU9l+YWzZTXFK/R54zC6OUpKTuxJ2W3wGMF+Nhip591ZXlwAJLYs3flJz3 Gvl43rnMbssGCjW+Ty+BhPDTBMeoD9lMVgNnO6hkBK0Pu96ZsrQjFpPevE8prxXEE1YX OyEfVHQzFDSM+FvbVjBeIqk3lEmOZhE8Uxeh/K1hL7Air7e8o55y6XV78AnKGdHmJdNK CyXBLBP081UaAGJKT7n4nlONclMOhtD55eVinFi2Pp0f54Q4bmu4dG/Hl4X2hqIDC4q0 Cbr5jld5AxUb5qb6VZOY+XPEwn/yQhJA7q1ihIgYXBul3MqHBBnHcqxS0alMztGJoVoT 0V1A== X-Gm-Message-State: AOJu0YxaMzoad3FGq1Bo+v5vlrsX73IGdap3IdLBXwuSLC9jpyt3FPoB W48a1u+0pEDvdzCMf6OKW1w= X-Google-Smtp-Source: AGHT+IFA3YVMgNJuaUNZdeNjpkbOtk9J+viH/4QaCz3YXMrF1kgzEelIw1ZhTl2p1BVuq96V258rng== X-Received: by 2002:a05:6512:280b:b0:4fe:3291:6b50 with SMTP id cf11-20020a056512280b00b004fe32916b50mr791828lfb.7.1695904392902; Thu, 28 Sep 2023 05:33:12 -0700 (PDT) Received: from smtpclient.apple (188-67-146-233.bb.dnainternet.fi. [188.67.146.233]) by smtp.gmail.com with ESMTPSA id q6-20020a19a406000000b004fbad341442sm3090846lfc.97.2023.09.28.05.33.12 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Thu, 28 Sep 2023 05:33:12 -0700 (PDT) Content-Type: text/plain; charset=us-ascii Mime-Version: 1.0 (Mac OS X Mail 14.0 \(3654.100.0.2.22\)) From: Jonathan Morton X-Priority: 3 (Normal) In-Reply-To: Date: Thu, 28 Sep 2023 15:33:11 +0300 Cc: "David P. Reed" , Cake List Content-Transfer-Encoding: quoted-printable Message-Id: <79EC8CB2-0912-4D66-9FA3-990E9C38C281@gmail.com> References: <1695068690.78066946@apps.rackspace.com> <6D098714-69DC-41D9-A7DC-E94FD9C77625@gmail.com> To: Sebastian Moeller X-Mailer: Apple Mail (2.3654.100.0.2.22) Subject: Re: [Cake] some comprehensive arm64 w/cake results 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, 28 Sep 2023 12:33:14 -0000 > On 28 Sep, 2023, at 3:15 pm, Sebastian Moeller = wrote: >=20 > This promises even better performance for loads like cake than the = already pretty nifty pi4B Well, increased computing performance is always welcome - but as I've = said before, in most cases I don't think CPU performance is the limiting = factor for CAKE. When the CPU load goes up as networking throughput reaches the physical = limit of the interface (or the I/O subsystem), what you're seeing is the = CPU just spinning its wheels while waiting for a mutex to unblock. = Spinning faster doesn't make the mutex unblock sooner! - Jonathan Morton=