From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <42636.210.212.228.78.1043387664.webmail@mail.nitc.ac.in> Date: Fri, 24 Jan 2003 11:24:24 +0530 (IST) Subject: Re: your mail From: "Anoop J." MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit Sender: owner-linux-mm@kvack.org Return-Path: To: linux-mm@kvack.org, linux-kernel@vger.kernel.org List-ID: How is this different from a fully associative cache .Would be better if u could deal it based on the address bits used Thanks David Lang wrote: >The idea of page coloring is based on the fact that common implementations >of caching can't put any page in memory in any line in the cache (such an >implementation is possible, but is more expensive to do so is not commonly >done) > >With this implementation it means that if your program happens to use >memory that cannot be mapped to half of the cache lines then effectivly >the CPU cache is half it's rated size for your program. the next time your >program runs it may get a more favorable memory allocation and be able to >use all of the cache and therefor run faster. > >Page coloring is an attampt to take this into account when allocating >memory to programs so that every program gets to use all of the cache. > >David Lang > > > On Fri, 24 Jan 2003, Anoop J. wrote: > >>Date: Fri, 24 Jan 2003 10:38:03 +0530 (IST) >>From: Anoop J. >>To: linux-kernel@vger.kernel.org, linux-mm@kvack.org >> >> >>How does page coloring work. Iwant its mechanism not the implementation. >>I went through some pages of W.L.Lynch's paper on cache and VM. Still not >>able to grasp it . >> >> >>Thanks in advance >> >> >> >>- >>To unsubscribe from this list: send the line "unsubscribe linux-kernel" in >>the body of a message to majordomo@vger.kernel.org >>More majordomo info at http://vger.kernel.org/majordomo-info.html >>Please read the FAQ at http://www.tux.org/lkml/ >> > -- 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/