Lines Matching refs:zone

229 debugfs shows what the fragmentation index for each order is in each zone in
234 The kernel will not compact memory in a zone if the
288 zone.  This is because that memory could then be pinned via the mlock()
316       zone's value is not necessary for following calculation.
321 Each zone has an array of protection pages like this.
324 Node 0, zone      DMA
338 These protections are added to score to judge whether this zone should be used
341 In this example, if normal pages (index=2) are required to this DMA zone and
342 watermark[WMARK_HIGH] is used for watermark, the kernel judges this zone should
344 (4 + 2004 = 2008). If this protection value is 0, this zone would be used for
345 normal page requirement. If requirement is DMA zone(index=0), protection[0]
348 zone[i]'s protection[j] is calculated by following expression.
351   zone[i]->protection[j]
352   = (total sums of managed_pages from zone[i+1] to zone[j] on the node)
360     256 (if zone[i] means DMA or DMA32 zone)
428 watermark[WMARK_MIN] value for each lowmem zone in the system.
429 Each lowmem zone gets a number of reserved free pages based
444 A percentage of the total pages in each zone.  On Zone reclaim
445 (fallback from the local zone occurs) slabs will be reclaimed if more
446 than this percentage of pages in a zone are reclaimable slab pages.
452 Note that slab reclaim is triggered in a per zone / node fashion.
462 This is a percentage of the total pages in each zone. Zone reclaim will
545 the DMA zone.
549 "Node order" orders the zonelists by node, then by zone within each node.
552 "Zone Order" orders the zonelists by zone type, then by node within each
553 zone.  Specify "[Zz]one" for zone order.
557 (1) if the DMA zone does not exist or
558 (2) if the DMA zone comprises greater than 50% of the available memory or
559 (3) if any node's DMA zone comprises greater than 70% of its local memory and
562 Otherwise, "zone" order will be selected. Default order is recommended unless
705 This is the fraction of pages at most (high mark pcp->high) in each zone that
707 means that we don't allow more than 1/8th of pages in each zone to be
710 1/100th of each zone to each per cpu page list.
734 than the high water mark in a zone.
782 reclaim memory when a zone runs out of memory. If it is set to zero then no
783 zone reclaim occurs. Allocations will be satisfied from other zones / nodes
803 Allowing zone reclaim to write out pages stops processes that are
805 reclaim will write out dirty pages if a zone fills up and so effectively