[src/netbsd-8]: src/sys/arch Pull up following revision(s) (requested by mrg ...

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

details:   https://anonhg.NetBSD.org/src/rev/70405caf9d5a
branches:  netbsd-8
changeset: 434878:70405caf9d5a
user:      martin <martin%NetBSD.org@localhost>
date:      Wed Apr 11 14:37:11 2018 +0000

description:
Pull up following revision(s) (requested by mrg in ticket #733):

        sys/arch/amd64/include/vmparam.h: revision 1.44
        sys/arch/amd64/include/vmparam.h: revision 1.45
        sys/arch/sparc64/include/vmparam.h: revision 1.38

bump PAGER_MAP_DEFAULT_SIZE to 512MB.  this should allow more
concurrent IOs to be possible, and i'm unable to see pager_map
contention any more.

other larger platforms should probably do this too.
ok chs@.

Remove superfluous word in comment. Noted by Geoff Wing.

Bump PAGER_MAP_DEFAULT_SIZE to 512 MB (like amd64 recently did).

diffstat:

 sys/arch/amd64/include/vmparam.h   |  8 +++++++-
 sys/arch/sparc64/include/vmparam.h |  8 +++++++-
 2 files changed, 14 insertions(+), 2 deletions(-)

diffs (44 lines):

diff -r 5b4279eb846c -r 70405caf9d5a sys/arch/amd64/include/vmparam.h
--- a/sys/arch/amd64/include/vmparam.h  Wed Apr 11 14:27:51 2018 +0000
+++ b/sys/arch/amd64/include/vmparam.h  Wed Apr 11 14:37:11 2018 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: vmparam.h,v 1.39.6.1 2017/08/31 08:32:38 bouyer Exp $  */
+/*     $NetBSD: vmparam.h,v 1.39.6.2 2018/04/11 14:37:11 martin Exp $  */
 
 /*-
  * Copyright (c) 1990 The Regents of the University of California.
@@ -57,6 +57,12 @@
 #define        PAGE_MASK       (PAGE_SIZE - 1)
 
 /*
+ * Default pager_map of 16MB is awfully small.  There is plenty
+ * of VA so use it.
+ */
+#define        PAGER_MAP_DEFAULT_SIZE (512 * 1024 * 1024)
+
+/*
  * USRSTACK is the top (end) of the user stack. Immediately above the
  * user stack resides the user structure, which is UPAGES long and contains
  * the kernel stack.
diff -r 5b4279eb846c -r 70405caf9d5a sys/arch/sparc64/include/vmparam.h
--- a/sys/arch/sparc64/include/vmparam.h        Wed Apr 11 14:27:51 2018 +0000
+++ b/sys/arch/sparc64/include/vmparam.h        Wed Apr 11 14:37:11 2018 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: vmparam.h,v 1.37 2016/03/26 11:49:10 martin Exp $ */
+/*     $NetBSD: vmparam.h,v 1.37.10.1 2018/04/11 14:37:11 martin Exp $ */
 
 /*
  * Copyright (c) 1992, 1993
@@ -58,6 +58,12 @@
 #define        PAGE_MASK       (PAGE_SIZE - 1)
 
 /*
+ * Default pager_map of 16MB is awfully small.  There is plenty
+ * of VA so use it.
+ */
+#define        PAGER_MAP_DEFAULT_SIZE (512 * 1024 * 1024)
+
+/*
  * The kernel itself is mapped by the boot loader with 4Mb locked VM pages,
  * so let's keep 4Mb definitions here as well.
  */