Lots Of News In The New Linux Kernel
Sunday the 19 of January, was the new Linux kernel 3.13 released, and there are plenty of big news, more than usual.
The biggest news is probably the new firewall engine notables which will in time, replace the old one, iptables.
Nf-tables is a much more flexible because it is based on a bytecode that reads in the kernel, and that means that you can write more sophisticated matching rules.
There is also a compatibility layer so you do not need to replace their rules for iptables before you are ready for it.
Another major innovation is the powerful optimizations for storage on ssd.
A brand new block layer will get significant performance improvements on machines that only use ssd and no longer have spinning hard drives, and support for multi- processors have been improved and this will be a big impact on modern desktops and laptop with huge noticeable improvements.
On the architecture side, there are two fun news: One is support for Intel’s new so-called “many integrated core architecture” that Intel is working on for processors up to 80 cores.
Another one on this project is the “single-chip cloud computer”.
The Second improvement is support for numa (non-uniform memory architecture), used in supercomputers.
For mobile solutions, there are also some news. One thing that has been lacking for support is payments by NFC (Near Field Communication).
The detail that have been eneable is the support of the so-called “secure element” that is necessary for payment, apart from that there is not any news in NFC itself.
In the file system, have it been some movement. Apart from better performance in a variety of disk-based file systems.
Microsoft’s network filesystem CIFS had got some improvements.
The operating system can now ask the server which the performance of the underlying disk is so it can be optimized, this plays a major role when using ssd’s on a server.