From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 578436FD1 for ; Fri, 8 Dec 2023 10:50:24 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="XX1rcNpx" Received: by smtp.kernel.org (Postfix) with ESMTPS id DADA6C433C9; Fri, 8 Dec 2023 10:50:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1702032623; bh=LEtB9at6X+SClQxgbXPuelGVlTPDowCMmdLHvwtxK+s=; h=Subject:From:Date:References:In-Reply-To:To:Cc:From; b=XX1rcNpxNeORNo0UsY/rt4dXHIeDAolDpXIHtM8v4YHILUr210ZTqlNXhdcvs6UQb b0XmamUIC8Y/GRxt8OR6yU+MahN9IhcCaCHtDrqHCfE3JamL7lL0M/V4fvXw4P622l 1CDzJhJHCRQofsTcq2eG59D4kIWeqb4a0djuiaFvueES3l55pe6QClQQMM5SEYES2I UEnLhE2WjE7nybhheCm9lmmAuf4D/hpOcj59Ebw7eIT8KoYvoI06eAe18zy/nz2iVs O7xa7C5onZLYkgiRdjArRTNJv7jWo3Rxyoij2FuUyjN6kfArdxHJz+68CIVsTwsBEK 5lX0zDlyymsZA== 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 C46A8C04E32; Fri, 8 Dec 2023 10:50:23 +0000 (UTC) Content-Type: text/plain; charset="utf-8" Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: Re: [PATCH v2] neighbour: Don't let neigh_forced_gc() disable preemption for long From: patchwork-bot+netdevbpf@kernel.org Message-Id: <170203262380.21119.9612861289100953455.git-patchwork-notify@kernel.org> Date: Fri, 08 Dec 2023 10:50:23 +0000 References: <20231206033913.1290566-1-judyhsiao@chromium.org> In-Reply-To: <20231206033913.1290566-1-judyhsiao@chromium.org> To: Judy Hsiao Cc: edumazet@google.com, dsahern@kernel.org, horms@kernel.org, dianders@chromium.org, haleyb.dev@gmail.com, davem@davemloft.net, kuba@kernel.org, joel.granados@gmail.com, ja@ssi.bg, leon@kernel.org, pabeni@redhat.com, linux-kernel@vger.kernel.org, netdev@vger.kernel.org Hello: This patch was applied to netdev/net.git (main) by David S. Miller : On Wed, 6 Dec 2023 03:38:33 +0000 you wrote: > We are seeing cases where neigh_cleanup_and_release() is called by > neigh_forced_gc() many times in a row with preemption turned off. > When running on a low powered CPU at a low CPU frequency, this has > been measured to keep preemption off for ~10 ms. That's not great on a > system with HZ=1000 which expects tasks to be able to schedule in > with ~1ms latency. > > [...] Here is the summary with links: - [v2] neighbour: Don't let neigh_forced_gc() disable preemption for long https://git.kernel.org/netdev/net/c/e5dc5afff62f You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html