From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from shin.romanrm.net (shin.romanrm.net [146.185.199.61]) (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 A20A53EA76 for ; Sat, 14 Dec 2024 18:43:42 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=146.185.199.61 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734201830; cv=none; b=o1ZQ10QGa3t+8jpx4sOIZYQl+QG7Q7VNuHQ0TwvEHGypRRnZEZZfp7mn4Ih61qHHgSE17D4QEzXXygl1Ex6uhLxAbBJtNXtsGSlflg2Eqve8qdoW9Exl9hpxvtdTiSTHqfSFvMsf6Z5q7G3d2NP97TIXMdbq0J1iKMQIcz4tH+o= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734201830; c=relaxed/simple; bh=UXxWUCDQNWYmHd5H/EuONNh3ZlQuG1getwOl7Vbf/AU=; h=Date:From:To:Cc:Subject:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=EiY99ubwp7N/cNtZKpYO3/I2onZiNYxePYp0RciLnsFC+4Bu6vi+Ky1DDopiiJarEqtoB6TRzLZW96Ew4fKEr06Ig2eJl2h5P0siqeN5WPDWyT+UpLc3TbyjeM+MkY9nI7KQ8o3tGooghinIl8i0ecGNeAEW5Xx06n+HguZa/lE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=romanrm.net; spf=pass smtp.mailfrom=romanrm.net; arc=none smtp.client-ip=146.185.199.61 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=romanrm.net Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=romanrm.net Received: from nvm (umi.2.romanrm.net [IPv6:fd39:a37d:999f:7e35:7900:fcd:12a3:6181]) by shin.romanrm.net (Postfix) with SMTP id 696D33F4A3; Sat, 14 Dec 2024 18:35:28 +0000 (UTC) Date: Sat, 14 Dec 2024 23:35:27 +0500 From: Roman Mamedov To: Leszek Dubiel Cc: Btrfs BTRFS Subject: Re: 97% full system, dusage didn't help, musage strange Message-ID: <20241214233527.5d7d3eff@nvm> In-Reply-To: <0a837cc1-81d4-4c51-9097-1b996a64516e@dubiel.pl> References: <0a837cc1-81d4-4c51-9097-1b996a64516e@dubiel.pl> X-Mailer: Claws Mail 3.11.1 (GTK+ 2.24.31; x86_64-pc-linux-gnu) Precedence: bulk X-Mailing-List: linux-btrfs@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit On Sat, 14 Dec 2024 18:55:06 +0100 Leszek Dubiel wrote: > What should i do next? Logically speaking it seems the next to try would be -musage=40, 50 and so on. But even so, the current physical space taken up by metadata is 88 GB, with 36 GB of actual metadata (72 GB in RAID1). So the potential gain here is only 16 GB at best. It looks like the rest of the "free" 256 GB is really scattered across data extents, even those beyond 90% utilization. To reclaim that into unallocated it could take balancing with the 95-98 filter or no filter at all, and a very long time. -- With respect, Roman