Lines Matching full:pages

103  * inactive pages and aging active pages.  To decide how many pages to process,
104  * it uses thresholds derived from the number of pages in the domain:
133  *        |-> vmd_pageout_free_min (32 + 2 pages)
135  *        |-> vmd_interrupt_free_min (2 pages)
145  * response outputs the number of pages to attempt to reclaim.  The shortage's
148  * dynamically to the system's demand for free pages, resulting in less
159  * daemon thread aggressively scans active pages so long as the following
166  * per-page access history.  Unreferenced pages in the active queue thus
169  * The per-domain laundry thread periodically launders dirty pages based on the
170  * number of clean pages freed by the page daemon since the last laundering.  If
172  * output) because of a shortage of clean inactive pages, the laundry thread
173  * attempts to launder enough pages to meet the free page target.
186  * priority, which is typically used for allocation of user pages, for instance
187  * in the page fault handler or when allocating page table pages or pv_entry
197  * failure, it may call vm_wait() to sleep until free pages are available.
221  * last-ditch attempt to free up some pages.  Either of the two following
224  *  1. The page daemons collectively fail to reclaim any pages during their
255 	u_int vmd_pageout_deficit;	/* (a) Estimated number of pages deficit */
277 	int vmd_pageout_pages_needed;	/* (d) page daemon waiting for pages? */
289 	u_int vmd_free_reserved;	/* (c) pages reserved for deadlock */
290 	u_int vmd_free_target;		/* (c) pages desired free */
291 	u_int vmd_free_min;		/* (c) pages desired free */
292 	u_int vmd_inactive_target;	/* (c) pages desired inactive */
293 	u_int vmd_pageout_free_min;	/* (c) min pages reserved for kernel */
294 	u_int vmd_pageout_wakeup_thresh;/* (c) min pages to wake pagedaemon */
295 	u_int vmd_interrupt_free_min;	/* (c) reserved pages for int code */
408  * Return the number of pages we need to free-up or cache
409  * A positive number indicates that we do not have enough free pages.
449  * Return the number of pages we need to launder.
450  * A positive number indicates that we have a shortfall of clean pages.