The Linux Kernel column #90 � the state of the kernelAug 05, 2010, 16:36 (0 Talkback[s])
(Other stories by Jon Masters)
[ Thanks to Linux User & Developer magazine for this link. ]
"The past year has seen a lot of work on enterprise-level features. This isn't too surprising as several of the major vendors work on new products based around the 2.6.32 kernel. Among the new bits were performance enhancements (it's now possible to apply more fine-grained limits on I/O bandwidth to different running programs, thanks to the blkio cgroup I/O controller work), scalability improvements (it's now possible to use over 4,096 CPUs) and a huge amount of progress in the virtualisation space. On that latter point, there were too many developments to fully summarise, but they included an in-kernel virtualised network server to aid performance, and new support for detecting identical regions of memory in guest machines in order to share a single copy, which can reduce overall memory usage considerably.
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