14 messages in org.freebsd.freebsd-archU Area Removal| From | Sent On | Attachments |
|---|---|---|
| David Schultz | Nov 10, 2004 7:00 pm | |
| Scott Long | Nov 10, 2004 7:15 pm | |
| Brian Fundakowski Feldman | Nov 10, 2004 7:16 pm | |
| Bruce M Simpson | Nov 10, 2004 7:32 pm | |
| Scott Long | Nov 10, 2004 7:44 pm | |
| David Schultz | Nov 10, 2004 7:56 pm | |
| Julian Elischer | Nov 10, 2004 9:59 pm | |
| Marcel Moolenaar | Nov 10, 2004 11:53 pm | |
| John Baldwin | Nov 11, 2004 9:28 am | |
| Scott Long | Nov 11, 2004 4:16 pm | |
| David Schultz | Nov 11, 2004 5:01 pm | |
| Marcel Moolenaar | Nov 11, 2004 7:51 pm | |
| Scott Long | Nov 11, 2004 10:26 pm | |
| Matthew Dillon | Nov 13, 2004 6:19 pm |
| Subject: | U Area Removal | |
|---|---|---|
| From: | Matthew Dillon (dil...@apollo.backplane.com) | |
| Date: | Nov 13, 2004 6:19:23 pm | |
| List: | org.freebsd.freebsd-arch | |
:On Wednesday 10 November 2004 07:00 pm, David Schultz wrote: : :> I propose to remove the ability to swap the U area, allocating :> p_stats from malloced memory instead. Medium-term scheduling and :> swapping of kernel stacks would be retained. : :For what its worth, I support this change. With the plimit/pstats fixes :of course. :-) : :-- :Peter Wemm - pet...@wemm.org; pet...@FreeBSD.org; pet...@yahoo-inc.com
I've had u-area swapping turned off almost from day-1 in DragonFly with no adverse effects. I'm still using the area for a stack so I haven't completely ripped it out, but as far as the swapping goes I think it's a good idea to rip it out. It does significantly simplify certain aspects of the kernel.
-Matt Matthew Dillon <dil...@backplane.com>