Commit Graph

27 Commits

Author SHA1 Message Date
dg
71d8424950 Fixed a bug I introduced when fixing the rss limit code. Changed swapout
policy to be a bit more selective about what processes get swapped out.

Reviewed by:	John Dyson
1994-09-12 15:06:14 +00:00
dg
e789621f5f Eliminated a whole pile of ancient (we're taking 4.3BSD) VM system
related #define constants. Corrected incorrect VM_MAX_KERNEL_ADDRESS.

Reviewed by:	John Dyson
1994-09-12 11:38:31 +00:00
dg
4c73f2ffb4 Don't deactivate pages in 0-refcount objects. Added a couple of missing
paging stats. Fixed problem with free_reserved becoming depleted during
certain swap_pager operations.

Submitted by:	John Dyson, with a little help from me
1994-09-12 11:31:36 +00:00
dg
d42dae3660 Fixed problem with no swap on boot device, but there is some on an
alternate device (as specified via kernel config file)...that casues
the machine to panic.
1994-09-11 03:55:39 +00:00
dg
ec8e5a16d9 Disabled a debugging printf. 1994-09-06 17:53:24 +00:00
dg
0a37b9feee Simple changes to paging algorithms...but boy do they make a difference.
FreeBSD's paging performance has never been better. Wow.

Submitted by:	John Dyson
1994-09-06 11:28:46 +00:00
dg
ff6fc2bc2a Whoops, accidently left out some pieces of the munmapfd patch. 1994-09-02 15:06:51 +00:00
dg
890c2cf256 Removed all vestiges of tlbflush(). Replaced them with calls to pmap_update().
Made pmap_update an inline assembly function.
1994-09-02 04:12:26 +00:00
dg
16e35aa368 Fixed bug caused by change of rlimit variables to quad_t's. The bug was in
using min() to calculate the minimum of rss_cur,rss_max - since these
are now quad_t's and min() takes u_ints...the comparison later for exceeding
the rss limit was always true - resulting in rather serious page thrashing.
Now using new qmin() function for this purpose.

Fixed another bug where PG_BUSY pages would sometimes be paged out (bad!).
This was caused by the PG_BUSY flag not being included in a comparison.
1994-08-30 18:27:44 +00:00
dg
9bf406e501 Patches from John Dyson to improve swap code efficiency.
Religiously add back pmap_clear_modify() in vnode_pager_input until we figure
out why system performance isn't what we expect.

Submitted by:	John Dyson (swap_pager) & David Greenman (vnode_pager)
1994-08-29 06:23:19 +00:00
dg
4d4250da00 1) Changed ddb into a option rather than a pseudo-device (use options DDB
in your kernel config now).
2) Added ps ddb function from 1.1.5. Cleaned it up a bit and moved into its
   own file.
3) Added \r handing in db_printf.
4) Added missing memory usage stats to statclock().
5) Added dummy function to pseudo_set so it will be emitted if there
   are no other pseudo declarations.
1994-08-27 16:14:39 +00:00
paul
ef6f4b86ab Made idempotent
Reviewed by:
Submitted by:
1994-08-21 07:19:45 +00:00
wollman
f9fc827448 Fix up some sloppy coding practices:
- Delete redundant declarations.
- Add -Wredundant-declarations to Makefile.i386 so they don't come back.
- Delete sloppy COMMON-style declarations of uninitialized data in
  header files.
- Add a few prototypes.
- Clean up warnings resulting from the above.

NB: ioconf.c will still generate a redundant-declaration warning, which
is unavoidable unless somebody volunteers to make `config' smarter.
1994-08-18 22:36:09 +00:00
dg
90f432ed61 Fixed vm_page_deactivate to deal with getting called with a page that's
not on any queue. This is an old patchkit days fix.

Reviewed by:	John Dyson and David Greenman
Submitted by:	originally by Paul Mackerras
1994-08-10 03:09:37 +00:00
dg
82430e77cf Removed an old, obsolete call to vmmeter(). This is called now in the
schedcpu() routine in kern/kern_synch.c. This extra call to vmmeter() in
vm_glue.c was what was totally messing up the load average calculations.
1994-08-09 10:42:41 +00:00
dg
5f96899afd Made pmap_kenter "TLB safe". ...and then removed all the pmap_updates that
are no longer needed because of this.
1994-08-07 14:53:27 +00:00
dg
81dc370a9d Provide support for upcoming merged VM/buffer cache, and fixed a few bugs
that haven't appeared to manifest themselves (yet).

Submitted by:	John Dyson
1994-08-07 13:10:43 +00:00
dg
d54669e82c Fixed various prototype problems with the pmap functions and the subsequent
problems that fixing them caused.
1994-08-06 10:25:50 +00:00
dg
8b20309268 Incorporated post 1.1.5 work from John Dyson. This includes performance
improvements via the new routines pmap_qenter/pmap_qremove and pmap_kenter/
pmap_kremove. These routine allow fast mapping of pages for those
architectures that have "normal" MMUs. Also included is a fix to the
pageout daemon to properly check a queue end condition.

Submitted by:	John Dyson
1994-08-06 09:15:42 +00:00
dg
f35b3c52c8 Enabled page table preloading of cached objects.
Submitted by:	John Dyson
1994-08-06 09:00:50 +00:00
dg
89acf22c68 Added some code that was accidently left out early in the 1.x -> 2.0 VM
system conversion.
Submitted by:	John Dyson
1994-08-04 19:40:47 +00:00
dg
0711a9cff6 Integrated VM system improvements/fixes from FreeBSD-1.1.5. 1994-08-04 03:06:48 +00:00
dg
8d205697aa Added $Id$ 1994-08-02 07:55:43 +00:00
dg
0e87163cbf Removed all code related to the pagescan daemon, and changed 'act_count'
adjustments to compensate for a world without the pagescan daemon.
1994-08-01 11:25:45 +00:00
dg
0d458db402 Don't move the page's position in the active queue if it is busy or
held. John has noticed some stability problems when doing this.
1994-06-06 11:56:27 +00:00
rgrimes
2469c867a1 The big 4.4BSD Lite to FreeBSD 2.0.0 (Development) patch.
Reviewed by:	Rodney W. Grimes
Submitted by:	John Dyson and David Greenman
1994-05-25 09:21:21 +00:00
rgrimes
8fb65ce818 BSD 4.4 Lite Kernel Sources 1994-05-24 10:09:53 +00:00