From: David Mosberger <davidm@napali.hpl.hp.com>
To: linux-ia64@vger.kernel.org
Subject: [patch] ia64: Align rse_clear_invalid to double-bundle boundary.
Date: Wed, 19 Jan 2005 04:58:23 +0000 [thread overview]
Message-ID: <16877.59631.914927.689418@napali.hpl.hp.com> (raw)
Trivial patch: align rse_clear_invalid to 32-byte boundary. Good for
a 9 cycle speed up.
--david
Signed-off-by: David Mosberger-Tang <davidm@hpl.hp.com>
# This is a BitKeeper generated diff -Nru style patch.
#
# ChangeSet
# 2005/01/18 17:38:56-08:00 davidm@tiger.hpl.hp.com
# ia64: Align rse_clear_invalid to double-bundle boundary. Improves (normal)
# getpid() from 284 to 275 cycles.
#
# arch/ia64/kernel/entry.S
# 2005/01/18 17:38:40-08:00 davidm@tiger.hpl.hp.com +1 -0
# (rse_clear_invalid): Align it to 32 bytes.
#
diff -Nru a/arch/ia64/kernel/entry.S b/arch/ia64/kernel/entry.S
--- a/arch/ia64/kernel/entry.S 2005-01-18 20:57:18 -08:00
+++ b/arch/ia64/kernel/entry.S 2005-01-18 20:57:18 -08:00
@@ -971,6 +971,7 @@
shladd in0=loc1,3,r17
mov in1=0
;;
+ .align 32
rse_clear_invalid:
#ifdef CONFIG_ITANIUM
// cycle 0
next reply other threads:[~2005-01-19 4:58 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-01-19 4:58 David Mosberger [this message]
2005-01-25 20:36 ` [patch] ia64: Align rse_clear_invalid to double-bundle boundary 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
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