Linux Kernel 2.6.37 released, bringingExt4 Performance ImprovementAndI/O throttlingYes.
- Ext4 File SystemBlock I/O mode is used by default.To provide better support for multi-core system expansion, and to extend the creation of node lists to improve the file system creation speed.
- Improved scalability of the XFS file system.
- Removes BKL (Big Kernel Lock) and allows compilation of a Kernel without BKL.
- Introduce RBD (Rados block device) to the Ceph Distributed Network File System to implement functions similar to block devices.
- I/O throttling supported: Allows you to specify the maximum I/O value that can be used for one or more processes.
- "Jump label": Disabled static tracking points do not affect performance.
- Btrfs update: allows you to cache free space on a hard disk and create snapshots asynchronously. metadata and data mixing are supported during fast distribution.
- Improves the Perf detection capability.
- Improved power management: LZO compression for sleep scenes and support for device delay suspension.
- Support for PPP over IPv4: significantly reduces the connection speed of pptp vpn and significantly reduces the CPU usage.
For more information, see KernelNewbies.
Message Source:LWN
Original article: Linux Kernel 2.6.37
