From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 37B231D556 for ; Tue, 31 Oct 2023 15:46:10 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=networkplumber-org.20230601.gappssmtp.com header.i=@networkplumber-org.20230601.gappssmtp.com header.b="1BZnBi4u" Received: from mail-pl1-x631.google.com (mail-pl1-x631.google.com [IPv6:2607:f8b0:4864:20::631]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DEE8CF1 for ; Tue, 31 Oct 2023 08:46:08 -0700 (PDT) Received: by mail-pl1-x631.google.com with SMTP id d9443c01a7336-1cc30bf9e22so25853845ad.1 for ; Tue, 31 Oct 2023 08:46:08 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=networkplumber-org.20230601.gappssmtp.com; s=20230601; t=1698767168; x=1699371968; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:message-id:subject:to:from :date:from:to:cc:subject:date:message-id:reply-to; bh=bWjKvGuQTM6nksim3BbZGxFEoUm7kQoFAT+1iXuZoP0=; b=1BZnBi4u5zV74Qg656lwxEcdRWi+HYkoygSN7bccUKcOlQ0Lm+hIevBl1Fla69dmHR ogmOyT8OLg1UKdN54fJF8gd1e+tm4i/giuN6vRFBLI27KOKlGlGMAi/+pO6kF0euif7P oRqXZuOQm0mBn6hIWfRRg5/sKg4d6jxLR3vY7KId9SBnC/0x2tkbZJ0jCA4+FtDNFKXg vgD854+BQopmjRxzZlIiJkzSrOhdO8cBVkf9BCVnP4KJTDgbKKbS0/m2AAXE3oFZPtF3 RY/qZKWTnhOeb2kzRrRhEeoj7Gz8TijfKLHSapEJ81jHYhqALzNoDjtUoCMXdQyhBnf2 UWww== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1698767168; x=1699371968; h=content-transfer-encoding:mime-version:message-id:subject:to:from :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=bWjKvGuQTM6nksim3BbZGxFEoUm7kQoFAT+1iXuZoP0=; b=DSIFz/IEovDX317yktw47rdOVfYzl9YsgH0acofFbkF3aVlXlMeaEv4OX1EZmGSEnw kZpueX19+g0ZY4ixDf8+FQVAECLDXS3l/EwxHbS2GiQaNW4jnMRiOCvomk5iYVrzlsk5 sj/8mYXnWfW54Le6fYMXKKIbCZoajdF3hAPqNubosvdkvegyAvAVeLfWnNiZx7b/oaQq onReBRo6T378evZ3ABO5cBoTw6UI9mpb9rDZ+wQAcBbzoAb8QXhqMEBkR3kZWX5VSrXq jfNQgUWSP8YExBvZOAYpgq7yRSXKodJpr3Q+QkeWnGQbBNwbkiib1DuMgDVPoVq50MgW oy7Q== X-Gm-Message-State: AOJu0YwtW9UaLcKGMnE0paPQyBKRkRfr2AJx5aUVEEogyDQQzQ5qRi22 eSg+rOD46/0nm05poz1s2l3LwBc5SwkQ1xFB3ZLhe0ZL X-Google-Smtp-Source: AGHT+IHyEGTmJh1BTK86LtIWWzpQjN6b1e6iIc6xbrUelQJf+rtyXC4VCQvIWsI4CucpgJdwwcZ+Yg== X-Received: by 2002:a17:903:22c6:b0:1cc:55d4:a715 with SMTP id y6-20020a17090322c600b001cc55d4a715mr4625279plg.3.1698767167852; Tue, 31 Oct 2023 08:46:07 -0700 (PDT) Received: from fedora ([38.142.2.14]) by smtp.gmail.com with ESMTPSA id g23-20020a1709029f9700b001cc2c6cc39asm1480946plq.243.2023.10.31.08.46.07 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 31 Oct 2023 08:46:07 -0700 (PDT) Date: Tue, 31 Oct 2023 08:46:03 -0700 From: Stephen Hemminger To: netdev@vger.kernel.org Subject: It is time to put some TCP congestion controls out to pasture Message-ID: <20231031084603.7aacfb53@fedora> X-Mailer: Claws Mail 4.1.1 (GTK 3.24.38; x86_64-redhat-linux-gnu) Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Linux supports lots of TCP congestion control options which is good for research, but in the current world of syszbot, it makes sense to euthanize unmaintained especially research only algorithms. Some options on how to do this: - new config option TCP_CONGESTION_CONTROL_UNSAFE? - move to staging - remove completely What is best option?