Finally Linux 3.2 kernel has been released. The whole process get delayed because Linux Repository Kernel.org was breached on August 2011 and later it was kept for maintenance for a long day. After certain time Kernel.org came live with with Linux kernel 3.0.4. And now we have the latest one 3.2 kernel though the last stable version is 3.1.7.
Summary:- This release includes support for Ext4 block sizes bigger than 4KB and up to 1MB, which improve performance with big files; btrfs has been updated with faster scrubbing, automatic backup of critical filesystem metadata and tools for manual inspection of the filesystems; the process scheduler has added support to set upper limits of CPU time; the desktop reponsiveness in presence of heavy writes has been improved, TCP has been updated to include an algorithm which speeds up the recovery of the connection after lost packets; the profiling tool "perf top" has added support for live inspection of tasks and libraries and see the annotated assembly code; the Device Mapper has added support for 'thin provisioning' of storage, and a new architeture has been added: the Hexagon DSP processor from Qualcomm. Other drivers and small improvements and fixes are also available in this release.
Prominent Features:-
- Ext4: Support for bigger block sizes
- Btrfs: Faster scrubbing, automatic backup of tree roots, detailed corruption messages, manual inspection of metadata
- Process bandwith controller
- New architecture: Hexagon
- Thin provisioning and recursive snapshots in the Device Mapper
- I/O-less dirty throttling, reduce filesystem writeback from page reclaim
- TCP Proportional Rate Reduction
- Improved live profiling tool "perf top"
- Cross memory attach
- Driver and architecture-specific changes
- File systems :- [Ext4, Ext3, CIFS, Btrfs, JFFS2, EXOFS, NFS, GFS2, SQUASHFS]
- Memory management
- Networking
- Device Mapper
- Power management
- Virtualization
- Crypto
- Security
- Tracing/profiling
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