[src/trunk]: src/doc yamt-pagecache branch

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

details:   https://anonhg.NetBSD.org/src/rev/991388a14bc5
branches:  trunk
changeset: 770984:991388a14bc5
user:      yamt <yamt%NetBSD.org@localhost>
date:      Sat Nov 05 14:35:34 2011 +0000

description:
yamt-pagecache branch

diffstat:

 doc/BRANCHES |  19 ++++++++++++++++++-
 1 files changed, 18 insertions(+), 1 deletions(-)

diffs (33 lines):

diff -r fae6c6c0a2f5 -r 991388a14bc5 doc/BRANCHES
--- a/doc/BRANCHES      Sat Nov 05 10:40:56 2011 +0000
+++ b/doc/BRANCHES      Sat Nov 05 14:35:34 2011 +0000
@@ -1,4 +1,4 @@
-#      $NetBSD: BRANCHES,v 1.310 2011/09/20 00:29:57 jym Exp $
+#      $NetBSD: BRANCHES,v 1.311 2011/11/05 14:35:34 yamt Exp $
 #
 # This file contains a list of branches that exist in the NetBSD CVS
 # tree and their current state.
@@ -588,6 +588,23 @@
 Scope:         src/sys  (src/common is tagged but not branched)
 Notes:         
 
+Branch:                yamt-pagecache
+Description:   page cache related changes
+Status:                Active
+Start Date:    Wed Nov 2 2011
+End Date:      
+Base Tag:      yamt-pagecache-base
+Maintainer:    YAMAMOTO Takashi <yamt%NetBSD.org@localhost>
+Scope:         src
+Notes:         - maintain object pages in radix tree rather than rb tree.
+               - reduce unnecessary page scan in putpages.  esp. when an
+                 object has a ton of pages cached but only a few of them
+                 are dirty.
+               - reduce the number of pmap operations by tracking page
+                 dirtiness more  precisely in uvm layer.
+               - fix nfs commit range tracking.
+               - fix nfs write clustering.  XXX hack
+
 Branch:                reinoud-bufcleanup
 Description:   implement and evaluate struct buf usage cleanup strategies.
                Ideas currently in mind (preference for b):