MI changes:

 - provide an interface (macros) to the page coloring part of the VM system,
   this allows to try different coloring algorithms without the need to
   touch every file [1]
 - make the page queue tuning values readable: sysctl vm.stats.pagequeue
 - autotuning of the page coloring values based upon the cache size instead
   of options in the kernel config (disabling of the page coloring as a
   kernel option is still possible)

MD changes:
 - detection of the cache size: only IA32 and AMD64 (untested) contains
   cache size detection code, every other arch just comes with a dummy
   function (this results in the use of default values like it was the
   case without the autotuning of the page coloring)
 - print some more info on Intel CPU's (like we do on AMD and Transmeta
   CPU's)

Note to AMD owners (IA32 and AMD64): please run "sysctl vm.stats.pagequeue"
and report if the cache* values are zero (= bug in the cache detection code)
or not.

Based upon work by:	Chad David <davidc@acns.ab.ca> [1]
Reviewed by:		alc, arch (in 2004)
Discussed with:		alc, Chad David, arch (in 2004)

1 files changed, 1 insertions, 1 deletions

diff --git a/sys/vm/vm_zeroidle.c b/sys/vm/vm_zeroidle.c
index 46e1c26..68babd0 100644
--- a/sys/vm/vm_zeroidle.c
+++ b/sys/vm/vm_zeroidle.c
@@ -120,7 +120,7 @@ vm_page_zero_idle(void)
 		if (vm_page_zero_count >= ZIDLE_HI(cnt.v_free_count))
 			zero_state = 1;
 	}
-	free_rover = (free_rover + PQ_PRIME2) & PQ_L2_MASK;
+	free_rover = (free_rover + PQ_PRIME2) & PQ_COLORMASK;
 	mtx_unlock_spin(&vm_page_queue_free_mtx);
 	return (1);
 }