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authorhttps://me.yahoo.com/a/g3Ccalpj0NhN566pHbUl6i9QF0QEkrhlfPM-#b1c14 <diana@web>2015-02-16 20:08:03 +0100
committerGNU Hurd web pages engine <web-hurd@gnu.org>2015-02-16 20:08:03 +0100
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-[[!meta copyright="Copyright © 2010, 2013 Free Software Foundation, Inc."]]
-
-[[!meta license="""[[!toggle id="license" text="GFDL 1.2+"]][[!toggleable
-id="license" text="Permission is granted to copy, distribute and/or modify this
-document under the terms of the GNU Free Documentation License, Version 1.2 or
-any later version published by the Free Software Foundation; with no Invariant
-Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license
-is included in the section entitled [[GNU Free Documentation
-License|/fdl]]."]]"""]]
-
-[[!meta title="Linux: vmsig"]]
-
-[[!tag open_issue_gnumach open_issue_hurd]]
-
- * *cooperating with the VM when memory pressure increases*
-
- * *notify user applications of virtual memory events via real-time signals*
-
-<http://www.cs.umass.edu/~emery/pubs/bookmarking-collector/>, and discussion at
-<http://lambda-the-ultimate.org/node/2391> and
-<http://marc.info/?t=113269321800003&r=1&w=2>.
-
-Found this via <http://lambda-the-ultimate.org/node/4094#comment-62100>, which
-was linked from [LWN](http://lwn.net/Articles/409416/).
-
-From a quick glance, this sounds to [[me|tschwinge]] quite a bit like
-mechanisms also found in (originating in?) Mach's
-[[microkernel/mach/external_pager_mechanism]]. May be worth having a look at
-it.
-
-
-# IRC, freenode, #hurd, 2013-03-06
-
- <braunr> tschwinge: from a quick look, this isn't similar to the external
- pager mechanism
- <braunr> it's an additional tool to help userspace application manage
- internal caches
- <braunr> it's similar to what is done to reclaim memory from the slab
- allocator for example
- <braunr> and it would indeed be a very good thing to have so that e.g. the
- hurd can build a distributed but completely dynamic dentry-like cache
- <braunr> i'm actually glad to see someone else thought of using real time
- signals for this
- <braunr> i didn't do any research on that subject yet