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authordyson <dyson@FreeBSD.org>1996-01-19 04:00:31 +0000
committerdyson <dyson@FreeBSD.org>1996-01-19 04:00:31 +0000
commit8fc8a772af22f6e03233d248fa2dbd9b5c2bdd7d (patch)
tree3c31fd95ea745005a9cd6733db5a16f31bd828a6 /sys/amd64/amd64/trap.c
parent6755beedbf0ddaa9e66e91c8e74f620ede6bfad5 (diff)
downloadFreeBSD-src-8fc8a772af22f6e03233d248fa2dbd9b5c2bdd7d.zip
FreeBSD-src-8fc8a772af22f6e03233d248fa2dbd9b5c2bdd7d.tar.gz
Eliminated many redundant vm_map_lookup operations for vm_mmap.
Speed up for vfs_bio -- addition of a routine bqrelse to greatly diminish overhead for merged cache. Efficiency improvement for vfs_cluster. It used to do alot of redundant calls to cluster_rbuild. Correct the ordering for vrele of .text and release of credentials. Use the selective tlb update for 486/586/P6. Numerous fixes to the size of objects allocated for files. Additionally, fixes in the various pagers. Fixes for proper positioning of vnode_pager_setsize in msdosfs and ext2fs. Fixes in the swap pager for exhausted resources. The pageout code will not as readily thrash. Change the page queue flags (PG_ACTIVE, PG_INACTIVE, PG_FREE, PG_CACHE) into page queue indices (PQ_ACTIVE, PQ_INACTIVE, PQ_FREE, PQ_CACHE), thereby improving efficiency of several routines. Eliminate even more unnecessary vm_page_protect operations. Significantly speed up process forks. Make vm_object_page_clean more efficient, thereby eliminating the pause that happens every 30seconds. Make sequential clustered writes B_ASYNC instead of B_DELWRI even in the case of filesystems mounted async. Fix a panic with busy pages when write clustering is done for non-VMIO buffers.
Diffstat (limited to 'sys/amd64/amd64/trap.c')
-rw-r--r--sys/amd64/amd64/trap.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/sys/amd64/amd64/trap.c b/sys/amd64/amd64/trap.c
index 39afcdd..8b44962 100644
--- a/sys/amd64/amd64/trap.c
+++ b/sys/amd64/amd64/trap.c
@@ -35,7 +35,7 @@
* SUCH DAMAGE.
*
* from: @(#)trap.c 7.4 (Berkeley) 5/13/91
- * $Id: trap.c,v 1.69 1996/01/03 21:41:36 wollman Exp $
+ * $Id: trap.c,v 1.70 1996/01/04 21:11:03 wollman Exp $
*/
/*
@@ -649,7 +649,8 @@ trap_pfault(frame, usermode)
/* Fault the pte only if needed: */
if (*((int *)vtopte(v)) == 0)
- (void) vm_fault(map, trunc_page(v), VM_PROT_WRITE, FALSE);
+ (void) vm_fault(map,
+ trunc_page(v), VM_PROT_WRITE, FALSE);
pmap_use_pt( vm_map_pmap(map), va);
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