From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <45B8D5AB.8040803@redhat.com> Date: Thu, 25 Jan 2007 11:07:07 -0500 From: Rik van Riel MIME-Version: 1.0 Subject: Re: [RFC] Limit the size of the pagecache References: <45B75208.90208@linux.vnet.ibm.com> <45B82F41.9040705@linux.vnet.ibm.com> <45B835FE.6030107@redhat.com> <45B844E3.4050203@linux.vnet.ibm.com> In-Reply-To: <45B844E3.4050203@linux.vnet.ibm.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org Return-Path: To: Vaidyanathan Srinivasan Cc: Christoph Lameter , Aubrey Li , Nick Piggin , Robin Getz , "Henn, erich, Michael" , linux-mm@kvack.org, linux-kernel@vger.kernel.org List-ID: Vaidyanathan Srinivasan wrote: > Rik van Riel wrote: >> There are a few databases out there that mmap the whole >> thing. Sleepycat for one... > > That is why my suggestion would be not to touch mmapped pagecache > pages in the current pagecache limit code. The limit should concern > only unmapped pagecache pages. So you want to limit how much data the kernel caches for mysql or postgresql, but not limit how much of the rpm database is cached ?! IMHO your proposal does the exact opposite of what would be right for my systems :) -- Politics is the struggle between those who want to make their country the best in the world, and those who believe it already is. Each group calls the other unpatriotic. -- 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