[src/yamt-pagecache]: src/usr.bin/vmstat page loaning related statistics

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

details:   https://anonhg.NetBSD.org/src/rev/e9eeb2e96ac6
branches:  yamt-pagecache
changeset: 770853:e9eeb2e96ac6
user:      yamt <yamt%NetBSD.org@localhost>
date:      Wed Dec 28 13:28:03 2011 +0000

description:
page loaning related statistics

        6 O->K loan
   433958 O->K unloan
        0 O->K loan resolved on write to O
        0 O->K loan resolved on free of O
  1562110 A->K loan
  1450785 A->K unloan
   108147 A->K loan resolved on write to A
     3178 A->K loan resolved on free of A
   506926 O->A->K loan
    72974 O->A->K unloan
        0 O->K loan (zero)
        0 O->K unloan (zero)
        0 O->A->K loan turned into A->K loan due to write to O
        0 O->A->K loan turned into A->K loan due to free of O
       50 O->A->K loan turned into O->K loan due to write to A
   435568 O->A->K loan turned into O->K loan due to free of A
    22761 O->A loan resolved on write to O
      602 O->A loan resolved on free of O
  1015322 O->A loan resolved on write to A
 11431602 O->A loan resolved on free of A
    23363 O->A loaned page taken over by anon
 12470316 O->A loan for read(2)

diffstat:

 usr.bin/vmstat/vmstat.c |  55 +++++++++++++++++++++++++++++++++++++++++++++++-
 1 files changed, 53 insertions(+), 2 deletions(-)

diffs (83 lines):

diff -r 796975cece29 -r e9eeb2e96ac6 usr.bin/vmstat/vmstat.c
--- a/usr.bin/vmstat/vmstat.c   Wed Dec 28 13:24:19 2011 +0000
+++ b/usr.bin/vmstat/vmstat.c   Wed Dec 28 13:28:03 2011 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: vmstat.c,v 1.186.2.2 2011/11/14 14:27:53 yamt Exp $ */
+/* $NetBSD: vmstat.c,v 1.186.2.3 2011/12/28 13:28:03 yamt Exp $ */
 
 /*-
  * Copyright (c) 1998, 2000, 2001, 2007 The NetBSD Foundation, Inc.
@@ -70,7 +70,7 @@
 #if 0
 static char sccsid[] = "@(#)vmstat.c   8.2 (Berkeley) 3/1/95";
 #else
-__RCSID("$NetBSD: vmstat.c,v 1.186.2.2 2011/11/14 14:27:53 yamt Exp $");
+__RCSID("$NetBSD: vmstat.c,v 1.186.2.3 2011/12/28 13:28:03 yamt Exp $");
 #endif
 #endif /* not lint */
 
@@ -892,6 +892,7 @@
        if (active_kernel) {
                (void)printf("%9" PRIu64 " pages active\n", uvmexp2.active);
                (void)printf("%9" PRIu64 " pages inactive\n", uvmexp2.inactive);
+
                (void)printf("%9" PRIu64 " file pages known clean\n",
                    uvmexp2.cleanpages);
                (void)printf("%9" PRIu64 " file pages possibly dirty\n",
@@ -904,6 +905,56 @@
                    uvmexp2.possiblydirtyanonpages);
                (void)printf("%9" PRIu64 " anonymous pages known dirty\n",
                    uvmexp2.dirtyanonpages);
+
+               (void)printf("%9" PRIu64 " O->K loan\n",
+                   uvmexp2.loan_obj);
+               (void)printf("%9" PRIu64 " O->K unloan\n",
+                   uvmexp2.unloan_obj);
+               (void)printf("%9" PRIu64 " O->K loan resolved on write to O\n",
+                   uvmexp2.loanbreak_obj);
+               (void)printf("%9" PRIu64 " O->K loan resolved on free of O\n",
+                   uvmexp2.loanfree_obj);
+
+               (void)printf("%9" PRIu64 " A->K loan\n",
+                   uvmexp2.loan_anon);
+               (void)printf("%9" PRIu64 " A->K unloan\n",
+                   uvmexp2.unloan_anon);
+               (void)printf("%9" PRIu64 " A->K loan resolved on write to A\n",
+                   uvmexp2.loanbreak_anon);
+               (void)printf("%9" PRIu64 " A->K loan resolved on free of A\n",
+                   uvmexp2.loanfree_anon);
+
+               (void)printf("%9" PRIu64 " O->A->K loan\n",
+                   uvmexp2.loan_oa);
+               (void)printf("%9" PRIu64 " O->A->K unloan\n",
+                   uvmexp2.unloan_oa);
+
+               (void)printf("%9" PRIu64 " O->K loan (zero)\n",
+                   uvmexp2.loan_zero);
+               (void)printf("%9" PRIu64 " O->K unloan (zero)\n",
+                   uvmexp2.unloan_zero);
+
+               (void)printf("%9" PRIu64 " O->A->K loan turned into A->K loan due to write to O\n",
+                   uvmexp2.loanbreak_orphaned);
+               (void)printf("%9" PRIu64 " O->A->K loan turned into A->K loan due to free of O\n",
+                   uvmexp2.loanfree_orphaned);
+               (void)printf("%9" PRIu64 " O->A->K loan turned into O->K loan due to write to A\n",
+                   uvmexp2.loanbreak_orphaned_anon);
+               (void)printf("%9" PRIu64 " O->A->K loan turned into O->K loan due to free of A\n",
+                   uvmexp2.loanfree_orphaned_anon);
+
+               (void)printf("%9" PRIu64 " O->A loan resolved on write to O\n",
+                   uvmexp2.loanbreak_oa_obj);
+               (void)printf("%9" PRIu64 " O->A loan resolved on free of O\n",
+                   uvmexp2.loanfree_oa_obj);
+               (void)printf("%9" PRIu64 " O->A loan resolved on write to A\n",
+                   uvmexp2.loanbreak_oa_anon);
+               (void)printf("%9" PRIu64 " O->A loan resolved on free of A\n",
+                   uvmexp2.loanfree_oa_anon);
+               (void)printf("%9" PRIu64 " O->A loaned page taken over by anon\n",
+                   uvmexp2.loan_resolve_orphan);
+               (void)printf("%9" PRIu64 " O->A loan for read(2)\n",
+                   uvmexp2.loan_obj_read);
        }
        (void)printf("%9u pages paging\n", uvmexp.paging);
        (void)printf("%9u pages wired\n", uvmexp.wired);