Date: Thu, 23 Sep 1999 09:26:38 -0700 (PDT) From: Matthew Dillon <dillon@apollo.backplane.com> To: "Daniel C. Sobral" <dcs@newsguy.com> Cc: Nate Williams <nate@mt.sri.com>, Alfred Perlstein <bright@wintelcom.net>, Chuck Robey <chuckr@mat.net>, Ivan <Ivan.Djelic@prism.uvsq.fr>, freebsd-hackers@FreeBSD.ORG Subject: Re: Out of swap handling and X lockups in 3.2R Message-ID: <199909231626.JAA27920@apollo.backplane.com> References: <Pine.BSF.4.10.9909221227080.312-100000@picnic.mat.net> <Pine.BSF.4.05.9909221024370.6368-100000@fw.wintelcom.net> <199909221727.LAA14290@mt.sri.com> <199909221738.KAA16257@apollo.backplane.com> <37E9AB80.C67E1B1D@newsguy.com>
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:Matthew Dillon wrote:
:>
:> How about this - add an 'importance' resource. The lower the number,
:> the more likely the process will be killed if the system runs out of
:> resources. We would also make fork automatically decrement the number
:> by one in the child.
:
:Well, that's one thing people have asked for. It can be useful, and
:doesn't sound particularly hard to code, nor too intrusive or
:resource-hog. Would make some people, on both camps.
:
:Alas, some people will never let go until we have a no overcommit
:switch, and *then* they'll start asking for us to go to the lengths
:Solaris does to reduce the disadvantages.
:
:--
:Daniel C. Sobral (8-DCS)
My feeling is that adding an importance mechanism would not preclude
adding more sophisticated mechanisms on top of it.
The real question is: Are enough people interested in me doing the
*basic* (word emphasized) importance mechanism for me to do it?
What it all comes down to is a juxtaposition of what people believe
is appropriate verses what people are actually willing to code up.
I'm willing to code up my importance mechanism idea. The question is
whether it's a good enough idea to throw into the tree.
-Matt
Matthew Dillon
<dillon@backplane.com>
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