From 95878586ec7611791f4001a4ee17abf943fae3c1 Mon Sep 17 00:00:00 2001 From: "https://me.yahoo.com/a/g3Ccalpj0NhN566pHbUl6i9QF0QEkrhlfPM-#b1c14" Date: Mon, 16 Feb 2015 20:08:03 +0100 Subject: rename open_issues.mdwn to service_solahart_jakarta_selatan__082122541663.mdwn --- .../linux_vmsig.mdwn | 44 ++++++++++++++++++++++ 1 file changed, 44 insertions(+) create mode 100644 service_solahart_jakarta_selatan__082122541663/linux_vmsig.mdwn (limited to 'service_solahart_jakarta_selatan__082122541663/linux_vmsig.mdwn') diff --git a/service_solahart_jakarta_selatan__082122541663/linux_vmsig.mdwn b/service_solahart_jakarta_selatan__082122541663/linux_vmsig.mdwn new file mode 100644 index 00000000..182fb6f9 --- /dev/null +++ b/service_solahart_jakarta_selatan__082122541663/linux_vmsig.mdwn @@ -0,0 +1,44 @@ +[[!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* + +, and discussion at + and +. + +Found this via , 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 + + tschwinge: from a quick look, this isn't similar to the external + pager mechanism + it's an additional tool to help userspace application manage + internal caches + it's similar to what is done to reclaim memory from the slab + allocator for example + 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 + i'm actually glad to see someone else thought of using real time + signals for this + i didn't do any research on that subject yet -- cgit v1.2.3