From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="zCQvleEW" Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:3::133]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 684B1C4 for ; Mon, 27 Nov 2023 21:42:37 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=In-Reply-To:Content-Type:MIME-Version :References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=OZ8drJyOEnlms3EVGAxgRV2w2y0FxFIWHO8/ygdBUaI=; b=zCQvleEWeCCh7fXdzzBxTzhqyW budUFDmd1BDNkTgokudJxgMjEP/TFurPzW8Qog6zQXelF+rIrESN5tCoRI13JYDLLzgMGD/LZuQz7 Ualrg4S7JSnEFQNM/2IbBboqTdRxVD5vTrSk2C3TvNPxkatxufuQ544hQcJHFaqRuj4GLhShqC0XV G2OMTP2C4Omb1/w/hiD1m9RQdPeJaLrARJGoG5r8D222Cv0flNTWaixKnokaNFm+KUgDUboZjqucM BhYcUvH9w6tZb1w24s9vvmZhORzEiPnPWI20uHldlmjmG6iwIoFAoWOKzY/BdBdbEyhR+eqd7XUt8 Bo61Oz9Q==; Received: from hch by bombadil.infradead.org with local (Exim 4.96 #2 (Red Hat Linux)) id 1r7qrl-004Aa9-0w; Tue, 28 Nov 2023 05:42:37 +0000 Date: Mon, 27 Nov 2023 21:42:37 -0800 From: Christoph Hellwig To: "Darrick J. Wong" Cc: Christoph Hellwig , linux-xfs@vger.kernel.org Subject: Re: [PATCH 2/4] xfs: add debug knobs to control btree bulk load slack factors Message-ID: 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: <20231128014437.GN2766956@frogsfrogsfrogs> X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html 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.