From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Mosberger Date: Tue, 25 Jan 2005 22:19:00 +0000 Subject: RE: [patch] ia64: Align rse_clear_invalid to double-bundle boundary. Message-Id: <16886.50644.522099.519989@napali.hpl.hp.com> List-Id: References: <16877.59631.914927.689418@napali.hpl.hp.com> In-Reply-To: <16877.59631.914927.689418@napali.hpl.hp.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-ia64@vger.kernel.org >>>>> On Tue, 25 Jan 2005 14:03:08 -0800, "Luck, Tony" said: Tony> This is using the tool chain on SLES9. I ran the preprocessor Tony> over entry.S, and it does include the ".align 32" ... so the Tony> change should have had no effect. Which means that something Tony> else I did today probably dropped the cycles :-( I believe the exact data-cache layout can affect the basic syscall-path quite significantly. Thus, I can certainly see why apparently unrelated changes could affect the syscall path. Getting better control over the data-layout would be nice (Ken's GP-relative addressing work may a helpful step in that direction). --david