From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 41D894C85 for ; Thu, 16 Jan 2025 05:31:25 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.137.202.133 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1737005486; cv=none; b=AFlnvo6/T4inLh0D93VAtRxk8btfBYNnMSHd6mPs2LEeHzNv9MFKAB+DKIz5xxwf3ZRwiCV668RZ+w5BGeFNVm16q8ATCjrXZm8pranXBDPutrOYAwiQ8QN6AYQPQQ23VDqIcki1+zBVP/dmKbJq1SdA2JjYS3Sxh4XX49DwHHU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1737005486; c=relaxed/simple; bh=qhfUJarLBjp/Ix4B3Mt6G2NOxpfsp+UVYVv6kdiNXqs=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=VD9vf0CM06pRGcprhWZ3y++FdDDj+lHEMq7SzMM35oFYi4U82DGhaFblG3K5KQKIf7qL7pQY7B2iC9rQlbx74O01Y7TDtm8y6jxcI1fRSbv4NSpMlsGJdYV+00zBcUPYDTaEcGswAt63v+xurLhzS+TZWB8dfeK1ZvbrTQNEYaI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org; spf=none smtp.mailfrom=bombadil.srs.infradead.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b=CBbuZ/vF; arc=none smtp.client-ip=198.137.202.133 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=bombadil.srs.infradead.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="CBbuZ/vF" 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=qhfUJarLBjp/Ix4B3Mt6G2NOxpfsp+UVYVv6kdiNXqs=; b=CBbuZ/vFYBSt+mEC0dO9uNUlId FnsepPjHcW4VhHEL3HXSNUa1wUnZOMqEjMSneAukScemxdbzkKg1XHvXgEiHsR5GsJUiFBsCx+zQO oJcmK+Ap/a055V3HiXV2iMfmANOHbMzSki6zXcFkag6BZJS0pqGSrIm83tNw2bF1zl9O8wPiYescO VMTlpad/VBSRABiAILqWQWNEfzIJCizzavR6YnhXvyv6Zb4ZcY5C6vu2mBzX0sCdbNNGK5QjeV40l U9q9VgaQB+PXtTu9rPiAtFii9F0P6477O34e0XtNJIpqATcB8iEIBOrcBxmkf/4rapPx8E7xg0VG6 unUHuPmQ==; Received: from hch by bombadil.infradead.org with local (Exim 4.98 #2 (Red Hat Linux)) id 1tYITT-0000000DswE-2ysO; Thu, 16 Jan 2025 05:31:23 +0000 Date: Wed, 15 Jan 2025 21:31:23 -0800 From: Christoph Hellwig To: Shyam Prasad N Cc: lsf-pc@lists.linux-foundation.org, linux-fsdevel , linux-mm@kvack.org, brauner@kernel.org, Matthew Wilcox , David Howells , Jeff Layton , Steve French , trondmy@kernel.org, Shyam Prasad N Subject: Re: [LSF/MM/BPF TOPIC] Predictive readahead of dentries Message-ID: References: Precedence: bulk X-Mailing-List: linux-fsdevel@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: X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Why don't you implement a prototype and post the results? Weirdly enough every year people come out of the woods more or (usually) less interesting totally handwavy ideas just before LSF/MM and spam the lists with their philosophy. Put your effort where your mouth is and give it a try and if it's useful send patches.