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authorChris Wilson <chris@chris-wilson.co.uk>2011-12-05 21:29:05 +0000
committerChris Wilson <chris@chris-wilson.co.uk>2011-12-05 22:22:10 +0000
commite4b60f29609e9993dc7268993da509530862aa78 (patch)
treeeaafe22d2f091d6288864359a546991fde9763c3 /tests/vbltest
parent902ee661f1864aaf8325621085f6a1b5a6a3673a (diff)
intel: Add an interface to limit vma caching
There is a per-process limit on the number of vma that the process can keep open, so we cannot keep an unlimited cache of unused vma's (besides keeping track of all those vma in the kernel adds considerable overhead). However, in order to work around inefficiencies in the kernel it is beneficial to reuse the vma, so keep a MRU cache of vma. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
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