diff options
Diffstat (limited to 'vm/vm_pageout.c')
| -rw-r--r-- | vm/vm_pageout.c | 41 |
1 files changed, 0 insertions, 41 deletions
diff --git a/vm/vm_pageout.c b/vm/vm_pageout.c index e0bd9880..a36c9905 100644 --- a/vm/vm_pageout.c +++ b/vm/vm_pageout.c @@ -109,21 +109,6 @@ #define VM_PAGE_FREE_MIN(free) (100 + (free) * 8 / 100) #endif /* VM_PAGE_FREE_MIN */ -/* When vm_page_external_count exceeds vm_page_external_limit, - * allocations of externally paged pages stops. - */ - -#ifndef VM_PAGE_EXTERNAL_LIMIT -#define VM_PAGE_EXTERNAL_LIMIT(free) ((free) / 2) -#endif /* VM_PAGE_EXTERNAL_LIMIT */ - -/* Attempt to keep the number of externally paged pages less - * than vm_pages_external_target. - */ -#ifndef VM_PAGE_EXTERNAL_TARGET -#define VM_PAGE_EXTERNAL_TARGET(free) ((free) / 4) -#endif /* VM_PAGE_EXTERNAL_TARGET */ - /* * When the number of free pages falls below vm_page_free_reserved, * only vm-privileged threads can allocate pages. vm-privilege @@ -162,8 +147,6 @@ unsigned int vm_pageout_reserved_internal = 0; unsigned int vm_pageout_reserved_really = 0; -unsigned int vm_page_external_target = 0; - unsigned int vm_pageout_burst_max = 0; unsigned int vm_pageout_burst_min = 0; unsigned int vm_pageout_burst_wait = 0; /* milliseconds per page */ @@ -633,7 +616,6 @@ void vm_pageout_scan(void) simple_lock(&vm_page_queue_free_lock); free_count = vm_page_mem_free(); if ((free_count >= vm_page_free_target) && - (vm_page_external_count <= vm_page_external_target) && (vm_page_free_wanted == 0)) { vm_page_unlock_queues(); break; @@ -783,21 +765,6 @@ void vm_pageout_scan(void) if (!m->dirty) m->dirty = pmap_is_modified(m->phys_addr); - if (m->external) { - /* Figure out if we still care about this - page in the limit of externally managed pages. - Clean pages don't actually cause system hosage, - so it's ok to stop considering them as - "consumers" of memory. */ - if (m->dirty && !m->extcounted) { - m->extcounted = TRUE; - vm_page_external_count++; - } else if (!m->dirty && m->extcounted) { - m->extcounted = FALSE; - vm_page_external_count--; - } - } - /* If we don't actually need more memory, and the page is not dirty, put it on the tail of the inactive queue and move on to the next page. */ @@ -954,14 +921,6 @@ void vm_pageout(void) free_after_reserve = vm_page_mem_free() - vm_page_free_reserved; - if (vm_page_external_limit == 0) - vm_page_external_limit = - VM_PAGE_EXTERNAL_LIMIT (free_after_reserve); - - if (vm_page_external_target == 0) - vm_page_external_target = - VM_PAGE_EXTERNAL_TARGET (free_after_reserve); - if (vm_page_free_min == 0) vm_page_free_min = vm_page_free_reserved + VM_PAGE_FREE_MIN(free_after_reserve); |