From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Message-ID: <18722.43694.861169.946743@cargo.ozlabs.ibm.com> Date: Tue, 18 Nov 2008 22:44:46 +1100 From: Paul Mackerras To: Nick Piggin Subject: Re: Large stack usage in fs code (especially for PPC64) In-Reply-To: <200811182124.33141.nickpiggin@yahoo.com.au> References: <18722.2107.970887.768477@cargo.ozlabs.ibm.com> <200811182124.33141.nickpiggin@yahoo.com.au> Cc: LKML , Steven Rostedt , linuxppc-dev@ozlabs.org, Thomas Gleixner , Andrew Morton , Linus Torvalds , Ingo Molnar List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Nick Piggin writes: > It's much harder to do this with powerpc I think because they would need > to calculate 8 hashes and touch 8 cachelines to prefill 8 translations, > wouldn't they? Yeah, the hashed page table sucks. Film at 11, as they say. :) Paul.