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author | netchild <netchild@FreeBSD.org> | 2005-12-31 14:39:20 +0000 |
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committer | netchild <netchild@FreeBSD.org> | 2005-12-31 14:39:20 +0000 |
commit | 507a9b3e936156202e89c42d2265863c3903254f (patch) | |
tree | c13a8d302e0337dbf08ab02516a66627814ead6b /sys/vm/vm_fault.c | |
parent | cd697cab850aef4c7941ebff10521fc87dbf7aee (diff) | |
download | FreeBSD-src-507a9b3e936156202e89c42d2265863c3903254f.zip FreeBSD-src-507a9b3e936156202e89c42d2265863c3903254f.tar.gz |
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)
Diffstat (limited to 'sys/vm/vm_fault.c')
-rw-r--r-- | sys/vm/vm_fault.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/sys/vm/vm_fault.c b/sys/vm/vm_fault.c index 4b7151b..a2e0b3a 100644 --- a/sys/vm/vm_fault.c +++ b/sys/vm/vm_fault.c @@ -410,7 +410,8 @@ RetryFault:; vm_pageq_remove_nowakeup(fs.m); - if ((queue - fs.m->pc) == PQ_CACHE && vm_page_count_severe()) { + if ((queue - fs.m->pc) == PQ_CACHE \ + && vm_page_count_severe()) { vm_page_activate(fs.m); vm_page_unlock_queues(); unlock_and_deallocate(&fs); @@ -1006,7 +1007,7 @@ vm_fault_prefault(pmap_t pmap, vm_offset_t addra, vm_map_entry_t entry) (m->flags & (PG_BUSY | PG_FICTITIOUS)) == 0) { vm_page_lock_queues(); - if ((m->queue - m->pc) == PQ_CACHE) + if (VM_PAGE_INQUEUE1(m, PQ_CACHE)) vm_page_deactivate(m); mpte = pmap_enter_quick(pmap, addr, m, entry->protection, mpte); |