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An unexpected perf feature
LWN.net Weekly Edition for May 16, 2013
A look at the PyPy 2.0 release
PostgreSQL 9.3 beta: Federated databases and more
LWN.net Weekly Edition for May 9, 2013
Volatile ranges with fallocate()
Posted Jun 8, 2012 18:25 UTC (Fri) by jstultz (subscriber, #212)
Ashmem also serves a separate purpose to Android, which is to provide a way to create atomically unlinked tmpfs files that can be shared between applications. This avoids having applications accidentally leave tmpfs files that take memory even if on one is using them.
For this purpose, the ashmem driver still is useful, but can be submitted and reviewed independently without tangling the pin/unpin functionality into the discussion.
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