From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Subject: Re: [PATCH RFC] mm: implement write-behind policy for sequential file writes To: Konstantin Khlebnikov , linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org Cc: Jens Axboe , Michal Hocko , Mel Gorman , Johannes Weiner , Tejun Heo , Andrew Morton , Linus Torvalds References: <150693809463.587641.5712378065494786263.stgit@buzz> From: Florian Weimer Message-ID: Date: Mon, 2 Oct 2017 13:23:18 +0200 MIME-Version: 1.0 In-Reply-To: <150693809463.587641.5712378065494786263.stgit@buzz> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: On 10/02/2017 11:54 AM, Konstantin Khlebnikov wrote: > This patch implements write-behind policy which tracks sequential writes > and starts background writeback when have enough dirty pages in a row. Does this apply to data for files which have never been written to disk before? I think one of the largest benefits of the extensive write-back caching in Linux is that the cache is discarded if the file is deleted before it is ever written to disk. (But maybe I'm wrong about this.) Thanks, Florian -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org