From: David Mosberger <davidm@napali.hpl.hp.com>
To: linux-ia64@vger.kernel.org
Subject: RE: [patch] ia64: Align rse_clear_invalid to double-bundle boundary.
Date: Tue, 25 Jan 2005 22:19:00 +0000 [thread overview]
Message-ID: <16886.50644.522099.519989@napali.hpl.hp.com> (raw)
In-Reply-To: <16877.59631.914927.689418@napali.hpl.hp.com>
>>>>> On Tue, 25 Jan 2005 14:03:08 -0800, "Luck, Tony" <tony.luck@intel.com> 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
prev parent reply other threads:[~2005-01-25 22:19 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-01-19 4:58 [patch] ia64: Align rse_clear_invalid to double-bundle boundary David Mosberger
2005-01-25 20:36 ` Luck, Tony
2005-01-25 20:41 ` David Mosberger
2005-01-25 21:15 ` Chen, Kenneth W
2005-01-25 21:52 ` Luck, Tony
2005-01-25 21:56 ` David Mosberger
2005-01-25 22:03 ` Luck, Tony
2005-01-25 22:19 ` David Mosberger [this message]
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