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author | John Dyson <dyson@FreeBSD.org> | 1996-11-17 02:38:31 +0000 |
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committer | John Dyson <dyson@FreeBSD.org> | 1996-11-17 02:38:31 +0000 |
commit | 5b0a74089d49b86f2f5c23beb0fe23c04c381fa4 (patch) | |
tree | 76db49f4ff238eb118aecba8ba06dc170713aa45 /sys/vm/vm_page.c | |
parent | 5f4cf81e9d05b0a82bf460156d419e144903bcdd (diff) | |
download | src-5b0a74089d49b86f2f5c23beb0fe23c04c381fa4.tar.gz src-5b0a74089d49b86f2f5c23beb0fe23c04c381fa4.zip |
Improve the locality of reference for variables in vm_page and
vm_kern by moving them from .bss to .data. With this change,
there is a measurable perf improvement in fork/exec.
Notes
Notes:
svn path=/head/; revision=19830
Diffstat (limited to 'sys/vm/vm_page.c')
-rw-r--r-- | sys/vm/vm_page.c | 26 |
1 files changed, 13 insertions, 13 deletions
diff --git a/sys/vm/vm_page.c b/sys/vm/vm_page.c index ea5c4ea0a7c6..ea0e13922a6b 100644 --- a/sys/vm/vm_page.c +++ b/sys/vm/vm_page.c @@ -34,7 +34,7 @@ * SUCH DAMAGE. * * from: @(#)vm_page.c 7.4 (Berkeley) 5/7/91 - * $Id: vm_page.c,v 1.69 1996/10/15 03:16:45 dyson Exp $ + * $Id: vm_page.c,v 1.70 1996/11/05 04:19:08 dyson Exp $ */ /* @@ -98,16 +98,16 @@ static struct pglist *vm_page_buckets; /* Array of buckets */ static int vm_page_bucket_count; /* How big is array? */ static int vm_page_hash_mask; /* Mask for hash function */ -struct pglist vm_page_queue_free[PQ_L2_SIZE]; -struct pglist vm_page_queue_zero[PQ_L2_SIZE]; -struct pglist vm_page_queue_active; -struct pglist vm_page_queue_inactive; -struct pglist vm_page_queue_cache[PQ_L2_SIZE]; +struct pglist vm_page_queue_free[PQ_L2_SIZE] = {0}; +struct pglist vm_page_queue_zero[PQ_L2_SIZE] = {0}; +struct pglist vm_page_queue_active = {0}; +struct pglist vm_page_queue_inactive = {0}; +struct pglist vm_page_queue_cache[PQ_L2_SIZE] = {0}; -int no_queue; +int no_queue=0; -struct vpgqueues vm_page_queues[PQ_COUNT]; -int pqcnt[PQ_COUNT]; +struct vpgqueues vm_page_queues[PQ_COUNT] = {0}; +int pqcnt[PQ_COUNT] = {0}; static void vm_page_queue_init(void) { @@ -142,13 +142,13 @@ vm_page_queue_init(void) { } } -vm_page_t vm_page_array; -int vm_page_array_size; -long first_page; +vm_page_t vm_page_array = 0; +int vm_page_array_size = 0; +long first_page = 0; static long last_page; static vm_size_t page_mask; static int page_shift; -int vm_page_zero_count; +int vm_page_zero_count = 0; /* * map of contiguous valid DEV_BSIZE chunks in a page |