[src/trunk]: src/sys/arch/amd64/conf Put 2MB alignments between the kernel se...

[maxv <maxv%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/588edaaa7b09
branches:  trunk
changeset: 821638:588edaaa7b09
user:      maxv <maxv%NetBSD.org@localhost>
date:      Sat Feb 11 16:02:11 2017 +0000

description:
Put 2MB alignments between the kernel segments. This way the kernel image
is entirely mapped with large pages, which uniformizes performance and
reduces fluctuation. Sent on port-amd64.

diffstat:

 sys/arch/amd64/conf/Makefile.amd64 |  4 ++--
 sys/arch/amd64/conf/kern.ldscript  |  6 +++---
 2 files changed, 5 insertions(+), 5 deletions(-)

diffs (45 lines):

diff -r c6401708f1cc -r 588edaaa7b09 sys/arch/amd64/conf/Makefile.amd64
--- a/sys/arch/amd64/conf/Makefile.amd64        Sat Feb 11 15:37:30 2017 +0000
+++ b/sys/arch/amd64/conf/Makefile.amd64        Sat Feb 11 16:02:11 2017 +0000
@@ -1,4 +1,4 @@
-#      $NetBSD: Makefile.amd64,v 1.56 2017/02/02 19:09:08 maxv Exp $
+#      $NetBSD: Makefile.amd64,v 1.57 2017/02/11 16:02:11 maxv Exp $
 
 # Makefile for NetBSD
 #
@@ -61,7 +61,7 @@
 ## (5) link settings
 ##
 TEXTADDR?=     0xffffffff80200000
-EXTRA_LINKFLAGS=       -z max-page-size=0x100000
+EXTRA_LINKFLAGS=       -z max-page-size=0x200000
 LINKFLAGS_NORMAL=      -X
 KERNLDSCRIPT?= ${AMD64}/conf/kern.ldscript
 
diff -r c6401708f1cc -r 588edaaa7b09 sys/arch/amd64/conf/kern.ldscript
--- a/sys/arch/amd64/conf/kern.ldscript Sat Feb 11 15:37:30 2017 +0000
+++ b/sys/arch/amd64/conf/kern.ldscript Sat Feb 11 16:02:11 2017 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: kern.ldscript,v 1.21 2016/05/12 09:05:16 maxv Exp $    */
+/*     $NetBSD: kern.ldscript,v 1.22 2017/02/11 16:02:11 maxv Exp $    */
 
 #include "assym.h"
 
@@ -35,7 +35,7 @@
                *(.rodata.*)
        }
 
-       . = ALIGN(__PAGE_SIZE);
+       . = ALIGN(__LARGE_PAGE_SIZE);
 
        __data_start = . ;
        .data :
@@ -66,7 +66,7 @@
                . = ALIGN(64 / 8);
        }
 
-       . = ALIGN(__PAGE_SIZE);
+       . = ALIGN(__LARGE_PAGE_SIZE);
 
        /* End of the kernel image */
        __kernel_end = . ;