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 6ADE44412 for ; Tue, 28 Nov 2023 17:07:51 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="YosUdrrz" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3334EC433C8; Tue, 28 Nov 2023 17:07:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1701191271; bh=1nQ9+MMXkNPs/vWjAfbbZ+M6trBndFwp6itWz9R73I0=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=YosUdrrz00o6+XkxALQ2WwmQCQTAcmU9oOfV+KAOt4JtBgGbt3Cv4Z/D5w8ADW8V8 6nVCpGguLO0teE1D/pdemm/NF1gYG9u2I/9E9q9b1lKKVxgJeA0nbiPi/UVwURTeAq fogmbUV0giFm0Z6l0RG42l184/YRrZSDtqQM8po8x4zGoOPwpUzyNEdzYcHDle9PgA AdXBqyQQ3/O+yuNQYmZrCKhnLgihf2Ukh+2RS6nKfcma7YwM5B33IU8r00Vl3IGzvE 0K8yO7/vrqQ+WM3deYKzjUmXZCH2KaqLqOojVdwfeNgG1K/qrtBsu6P9NveZDkqVPD CvMZvY9XzDvvQ== Date: Tue, 28 Nov 2023 09:07:50 -0800 From: "Darrick J. Wong" To: Christoph Hellwig Cc: linux-xfs@vger.kernel.org Subject: Re: [PATCH 2/4] xfs: add debug knobs to control btree bulk load slack factors Message-ID: <20231128170750.GA2766956@frogsfrogsfrogs> References: <170086926569.2770816.7549813820649168963.stgit@frogsfrogsfrogs> <170086926609.2770816.18279950636495716216.stgit@frogsfrogsfrogs> <20231128014437.GN2766956@frogsfrogsfrogs> Precedence: bulk X-Mailing-List: linux-xfs@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: On Mon, Nov 27, 2023 at 09:42:37PM -0800, Christoph Hellwig wrote: > On Mon, Nov 27, 2023 at 05:44:37PM -0800, Darrick J. Wong wrote: > > They're not generally useful for users, obviously. For developers, it > > might be useful to construct btrees of various heights by crafting a > > filesystem with a certain number of records and then using repair+knobs > > to rebuild the index with a certain shape. > > > > Practically speaking, you'd only ever do that for extreme stress > > testing. > > Please add this to the commit message. Done. --D > >