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(parent: 8e37ea4) | patch
xenpaging: implement stack of free slots in pagefile
authorOlaf Hering <olaf@aepfle.de>
Mon, 20 Feb 2012 20:18:44 +0000 (21:18 +0100)
committerOlaf Hering <olaf@aepfle.de>
Mon, 20 Feb 2012 20:18:44 +0000 (21:18 +0100)
commit2484d09e2a4574e181df58de6a44bafc6c663a40
tree293391884f7d3718493abb9066f042cea2a708a3tree | snapshot
parent8e37ea4bb89f91593d7a07ebc049da540f6279accommit | diff
xenpaging: implement stack of free slots in pagefile

Scanning the slot_to_gfn[] array for a free slot is expensive because
evict_pages() always needs to scan the whole array. Remember the last
slots freed during page-in requests and reuse them in evict_pages().

Signed-off-by: Olaf Hering <olaf@aepfle.de>
Committed-by: Ian Jackson <ian.jackson.citrix.com>
tools/xenpaging/xenpaging.c diff | blob | history
tools/xenpaging/xenpaging.h diff | blob | history
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