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 0669A230D0F for ; Thu, 9 Oct 2025 03:21:50 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1759980111; cv=none; b=ICtEb7J1NvOqnneKsL5ZOhrA2HNtqlIyZmgabW5uiQGW652GF1pBLFetbBnxhoKAiU/7L6zLtelpi6M7/ElTkMIQs/AK3wJru02x4GoApLkGI0fBYlnUJRXfx4FiL/voKSvOnG1d8JovC5YqJvusobvH/6H1GVEBYkHaWY+eBLU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1759980111; c=relaxed/simple; bh=PtQ41OI35O60urs8xAZ826G4NPsJvGyXxDM4/4UAcaU=; h=Message-ID:Date:MIME-Version:Cc:Subject:To:References:From: In-Reply-To:Content-Type; b=UwdPlG0ijGZNrjbRdDbwUeW0CRYYvSjzRfHc2aah2spzRLUgzsvzQcUb+FG9TJ9i3PWaHW89bu3GvAk2h7HKG8sJZtDrhg6MATbxnKCmH9TeZFswnO8cWxMbc6rWh47uaC7nNd3BNZA9X+ZgX34wlsGA5mOPrvSnjKrB3fCJiAI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=ZpSnV+LV; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="ZpSnV+LV" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 50D18C4CEE7; Thu, 9 Oct 2025 03:21:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1759980110; bh=PtQ41OI35O60urs8xAZ826G4NPsJvGyXxDM4/4UAcaU=; h=Date:Cc:Subject:To:References:From:In-Reply-To:From; b=ZpSnV+LVg5G/rjlqykPkHL+ovS+hmo2gxXU/MdmSaO+DamwlU8hZOb7qJCVbskqA9 nmbboLA2bX9KtByKgylIf/9k5cbiv/Lf54C1Cp3zCtzklZNPuak5Hss+TcxLfkoBfc nMqzsysDgSuBg4HIXK3EJb2EkTt4kDqP/Hzd7PVQZLBm1Vwnh0z3quaGuSFcKRfHWZ VdNyL7j6G0by9bqF0P5wUbo2MD014XaIQVIfOMm0W7lPsU+6QasuvXNtuBBVF2YMp/ EqXNlc6RjQrxwL7vj4wD9pDNvh96dxna1QJTCMm5qtk6vaZR3stdW3qKuWKmFRndnN ciLNt45LgNe2A== Message-ID: <03cc9db0-9294-40d5-8638-d9f71066b5ed@kernel.org> Date: Thu, 9 Oct 2025 11:21:47 +0800 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Cc: chao@kernel.org, Daeho Jeong Subject: Re: [f2fs-dev] [PATCH] f2fs: set default valid_thresh_ratio to 80 for zoned devices To: Daeho Jeong , linux-kernel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, kernel-team@android.com References: <20251003224917.1950708-1-daeho43@gmail.com> Content-Language: en-US From: Chao Yu In-Reply-To: <20251003224917.1950708-1-daeho43@gmail.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 10/4/2025 6:49 AM, Daeho Jeong wrote: > From: Daeho Jeong > > Zoned storage devices provide marginal over-capacity space, typically > around 10%, for filesystem level storage control. > > By utilizing this extra capacity, we can safely reduce the default > 'valid_thresh_ratio' to 80. This action helps to significantly prevent > excessive garbage collection (GC) and the resulting power consumption, > as the filesystem becomes less aggressive about cleaning segments > that still hold a high percentage of valid data. > > Signed-off-by: Daeho Jeong Reviewed-by: Chao Yu Thanks,