Linked by JRepin on Mon 29th Apr 2013 09:24 UTC
Linux After ten weeks of development Linus Torvalds has announced the release of Linux kernel 3.9. The latest version of the kernel now has a device mapper target which allows a user to setup an SSD as a cache for hard disks to boost disk performance under load. There's also kernel support for multiple processes waiting for requests on the same port, a feature which will allow it to distribute server work better across multiple CPU cores. KVM virtualisation is now available on ARM processors and RAID 5 and 6 support has been added to Btrfs's existing RAID 0 and 1 handling. Linux 3.9 also has a number of new and improved drivers which means the kernel now supports the graphics cores in AMD's next generation of APUs and also works with the high-speed 802.11ac Wi-Fi chips which will likely appear in Intel's next mobile platform. Read more about new features in What's new in Linux 3.9.
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RE: Load of works there
by voidlogic on Mon 29th Apr 2013 15:06 UTC in reply to "Load of works there"
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Micro-kernel is mostly run-time distinction; you can write a kernel with well defined modules that have defined interfaces for communication, but if they run in the same address space and thus gain efficiency they are will be less secure, but if the modules have their own address spaces and use message passing they gain security but lose efficiency. Linux decided a long time ago to share a kernel address space.

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