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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
(Nearly) full tickless operation in 3.10
Take virtual machines that use qcow2 files as backing, when copying such a file the zeroed blocks are simply left out of the target file.
Some SANs also avoid allocating more actual storage than needed by a block device, I'm sure those would like to get a hint about the disuse of blocks as well.
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