Announced by Linus Torvalds, Linux kernel version 2.6.38 offers improved performance compared to 2.6.37 version dates from early 2011.

Huge support for Transparent Pages is part of allowing the use of large memory pages (2 MB or 4 MB) while they were previously limited to 4 KB This is a step considered important by Tim Burke, vice president at Red Hat Linux.

But for Linus Torvalds, the most significant advance is to be sought in the Virtual File System (VFS), a software layer through which it is possible to manage multiple file systems and whose function pathname lookup (path resolution) has been optimized.

Another interesting new feature, support for AMD's Fusion architecture and thus the AMD platform with Brazos APU Ontario Zacate Netbooks and laptops. Also note the arrival of the Transmit Packet Steering (XPS) to improve the number of transactions on the packet transmissions by the networks.