[src/trunk]: src/sys/uvm make free page queue filo rather than fifo.

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

details:   https://anonhg.NetBSD.org/src/rev/1d2eb851c463
branches:  trunk
changeset: 570013:1d2eb851c463
user:      yamt <yamt%NetBSD.org@localhost>
date:      Fri Sep 17 20:46:03 2004 +0000

description:
make free page queue filo rather than fifo.
data in pages freed more recently are more likely on cpu cache.

diffstat:

 sys/uvm/uvm_page.c   |  6 +++---
 sys/uvm/uvm_pglist.c |  6 +++---
 2 files changed, 6 insertions(+), 6 deletions(-)

diffs (54 lines):

diff -r 8a06814c79b4 -r 1d2eb851c463 sys/uvm/uvm_page.c
--- a/sys/uvm/uvm_page.c        Fri Sep 17 19:21:03 2004 +0000
+++ b/sys/uvm/uvm_page.c        Fri Sep 17 20:46:03 2004 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: uvm_page.c,v 1.99 2004/09/01 11:53:38 yamt Exp $       */
+/*     $NetBSD: uvm_page.c,v 1.100 2004/09/17 20:46:03 yamt Exp $      */
 
 /*
  * Copyright (c) 1997 Charles D. Cranor and Washington University.
@@ -71,7 +71,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: uvm_page.c,v 1.99 2004/09/01 11:53:38 yamt Exp $");
+__KERNEL_RCSID(0, "$NetBSD: uvm_page.c,v 1.100 2004/09/17 20:46:03 yamt Exp $");
 
 #include "opt_uvmhist.h"
 
@@ -1427,7 +1427,7 @@
                uvm_pagezerocheck(pg);
 #endif /* DEBUG */
 
-       TAILQ_INSERT_TAIL(pgfl, pg, pageq);
+       TAILQ_INSERT_HEAD(pgfl, pg, pageq);
        uvmexp.free++;
        if (iszero)
                uvmexp.zeropages++;
diff -r 8a06814c79b4 -r 1d2eb851c463 sys/uvm/uvm_pglist.c
--- a/sys/uvm/uvm_pglist.c      Fri Sep 17 19:21:03 2004 +0000
+++ b/sys/uvm/uvm_pglist.c      Fri Sep 17 20:46:03 2004 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: uvm_pglist.c,v 1.31 2004/03/24 07:47:33 junyoung Exp $ */
+/*     $NetBSD: uvm_pglist.c,v 1.32 2004/09/17 20:46:03 yamt Exp $     */
 
 /*-
  * Copyright (c) 1997 The NetBSD Foundation, Inc.
@@ -42,7 +42,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: uvm_pglist.c,v 1.31 2004/03/24 07:47:33 junyoung Exp $");
+__KERNEL_RCSID(0, "$NetBSD: uvm_pglist.c,v 1.32 2004/09/17 20:46:03 yamt Exp $");
 
 #include <sys/param.h>
 #include <sys/systm.h>
@@ -483,7 +483,7 @@
                if (iszero)
                        uvm_pagezerocheck(pg);
 #endif /* DEBUG */
-               TAILQ_INSERT_TAIL(&uvm.page_free[uvm_page_lookup_freelist(pg)].
+               TAILQ_INSERT_HEAD(&uvm.page_free[uvm_page_lookup_freelist(pg)].
                    pgfl_buckets[VM_PGCOLOR_BUCKET(pg)].
                    pgfl_queues[iszero ? PGFL_ZEROS : PGFL_UNKNOWN], pg, pageq);
                uvmexp.free++;