From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8834AC433FE for ; Mon, 3 Oct 2022 12:40:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229539AbiJCMkU (ORCPT ); Mon, 3 Oct 2022 08:40:20 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36104 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229479AbiJCMkS (ORCPT ); Mon, 3 Oct 2022 08:40:18 -0400 Received: from sin.source.kernel.org (sin.source.kernel.org [145.40.73.55]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D5B8022B11 for ; Mon, 3 Oct 2022 05:40:17 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by sin.source.kernel.org (Postfix) with ESMTPS id 468F6CE0BA6 for ; Mon, 3 Oct 2022 12:40:16 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPS id 87296C433D7; Mon, 3 Oct 2022 12:40:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1664800814; bh=tJvsmyimVDmWaiVTWG/lLcCJKCcwqv9ESCOXAGjiHDk=; h=Subject:From:Date:References:In-Reply-To:To:Cc:From; b=Ew8shJLqQDTJi5M2F8OR3x7lzfCFosDe4eXkWpKl+0CeFdgbSTG6hPl8FC2r5JIZH zBJiy/UI1P2xEB3k/CIoF/OKhS8c+ejIgTx5N9uVMpY6H1hGTX3Q3oLqTJ5dxYodtJ zWKctJ3tVhKoNRoEOcblQQ20jDPo9QpySNjEzOFm7LAvNCXI/6C/mlipBl/BOWKxL6 T91UgF8swwbBw+aWgyu2qreZmmJ2W7b1Mr9QPxMiaeed26FtKVYKkSe8j5NzW1PJXI b0Rmmd3Nv9/9i2ZPynS+WP8Xv55k5NKcRZcafA53pPlj3PkyznuS8YgC/2dW2RewPe LQ3gor7AlZ6Tg== Received: from aws-us-west-2-korg-oddjob-1.ci.codeaurora.org (localhost.localdomain [127.0.0.1]) by aws-us-west-2-korg-oddjob-1.ci.codeaurora.org (Postfix) with ESMTP id 67FDEE4D013; Mon, 3 Oct 2022 12:40:14 +0000 (UTC) Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: Re: [PATCH net-next] once: add DO_ONCE_SLOW() for sleepable contexts From: patchwork-bot+netdevbpf@kernel.org Message-Id: <166480081442.18787.18225641567071597506.git-patchwork-notify@kernel.org> Date: Mon, 03 Oct 2022 12:40:14 +0000 References: <20221001205102.2319658-1-eric.dumazet@gmail.com> In-Reply-To: <20221001205102.2319658-1-eric.dumazet@gmail.com> To: Eric Dumazet Cc: davem@davemloft.net, kuba@kernel.org, pabeni@redhat.com, netdev@vger.kernel.org, edumazet@google.com, christophe.leroy@csgroup.eu, w@1wt.eu Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Hello: This patch was applied to netdev/net-next.git (master) by David S. Miller : On Sat, 1 Oct 2022 13:51:02 -0700 you wrote: > From: Eric Dumazet > > Christophe Leroy reported a ~80ms latency spike > happening at first TCP connect() time. > > This is because __inet_hash_connect() uses get_random_once() > to populate a perturbation table which became quite big > after commit 4c2c8f03a5ab ("tcp: increase source port perturb table to 2^16") > > [...] Here is the summary with links: - [net-next] once: add DO_ONCE_SLOW() for sleepable contexts https://git.kernel.org/netdev/net-next/c/62c07983bef9 You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html