Linked by diegocg on Thu 7th Nov 2013 22:19 UTC
Linux Linux kernel 3.12 has been released. This release includes support for offline deduplication in Btrfs, automatic GPU switching in laptops with dual GPUs, a performance boost for AMD Radeon graphics, better RAID-5 multicore performance, improved handling of out-of-memory situations, improvements to the timerless multitasking mode, separate modesetting and rendering device nodes in the graphics DRM layer, improved locking performance for virtualized guests, XFS directory recursion scalability improvements, new drivers and many small improvements. Here's the full list of changes.
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RE[2]: Btrfs dedup
by diegocg on Fri 8th Nov 2013 20:14 UTC in reply to "RE: Btrfs dedup"
diegocg
Member since:
2005-07-08

Live dedup is definitively not a perfect solution, it hurts performance and for many people it's a bad choice. Btrfs will add live dedup in next releases, so users can choose which method suits better to their needs.

Edited 2013-11-08 20:14 UTC

Reply Parent Score: 4

RE[3]: Btrfs dedup
by ddc_ on Sat 9th Nov 2013 23:52 in reply to "RE[2]: Btrfs dedup"
ddc_ Member since:
2006-12-05

Live dedup [...] hurts performance

It is actually very much implementation-dependent. Live dedup trades some expensive writes for much more of less expensive checks, so the outcome depends havily on the usage pattern and algo.

Reply Parent Score: 2