From mboxrd@z Thu Jan 1 00:00:00 1970 Subject: Re: [PATCH] Recent VM fiasco - fixed References: From: "Juan J. Quintela" In-Reply-To: Linus Torvalds's message of "Wed, 10 May 2000 17:16:05 -0700 (PDT)" Date: 11 May 2000 03:04:37 +0200 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: owner-linux-mm@kvack.org Return-Path: To: Linus Torvalds Cc: "James H. Cloos Jr." , linux-mm@kvack.org, linux-kernel@vger.rutgers.edu List-ID: >>>>> "linus" == Linus Torvalds writes: linus> Which makes the whole process much more streamlined, and makes the numbers linus> more repeatable. It also fixes the problem with dirty buffer cache data linus> much more efficiently than the kflushd approach, and mmap002 is not a linus> problem any more. At least for me. linus> [ I noticed that mmap002 finishes a whole lot faster if I never actually linus> wait for the writes to complete, but that had some nasty behaviour under linus> low memory circumstances, so it's not what pre7-9 actually does. I linus> _suspect_ that I should start actually waiting for pages only when linus> priority reaches 0 - comments welcomed, see fs/buffer.c and the linus> sync_page_buffers() function ] Hi I have done my normal mmap002 test and this goes slower than ever, it takes something like 3m50 seconds to complete, (pre7-8 2m50, andrea classzone 2m8, and 2.2.15 1m55 for reference). I have no more time now to do more testing, I will continue tomorrow late. My findings are: real 3m41.403s user 0m16.010s sys 0m36.890s It takes the same user time than anterior versions, but the system time has aumented a lot, it was ~10/12 seconds in pre7-8 and around 8 in classzone and 2.2.15. Later, Juan. -- In theory, practice and theory are the same, but in practice they are different -- Larry McVoy -- 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.eu.org/Linux-MM/