From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from ferret.lmh.ox.ac.uk (qmailr@ferret.lmh.ox.ac.uk [163.1.138.204]) by kvack.org (8.8.7/8.8.7) with SMTP id IAA16869 for ; Wed, 13 Jan 1999 08:58:19 -0500 Date: Wed, 13 Jan 1999 13:58:01 +0000 (GMT) From: Chris Evans Subject: Re: MM deadlock [was: Re: arca-vm-8...] In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-linux-mm@kvack.org To: Andrea Arcangeli Cc: Rik van Riel , Zlatko Calusic , Linus Torvalds , "Stephen C. Tweedie" , "Eric W. Biederman" , Savochkin Andrey Vladimirovich , steve@netplus.net, brent verner , "Garst R. Reese" , Kalle Andersson , Ben McCann , Alan Cox , bredelin@ucsd.edu, linux-kernel@vger.rutgers.edu, linux-mm@kvack.org List-ID: On Wed, 13 Jan 1999, Andrea Arcangeli wrote: > On Tue, 12 Jan 1999, Rik van Riel wrote: > > > IIRC this facility was in the original swapin readahead > > implementation. That only leaves the question who removed > > it and why :)) > > There's another thing I completly disagree and that I just removed here. > It's the alignment of the offset field. I see no one point in going back > instead of only doing real read_ahead_. > > Maybe I am missing something? Yes. Imagine the paging in of big binary case. The page faults will occur all over the place, not in a nice sequential order. The page-in clusters stuff _doubled_ performance of paging in certain big static binaries. Chris -- This is a majordomo managed list. To unsubscribe, send a message with the body 'unsubscribe linux-mm me@address' to: majordomo@kvack.org