Livepatching With Linux 4.12 Will Be Faster For Some Modules
Written by Michael Larabel in Linux Kernel on 2 May 2017 at 03:58 PM EDT. Add A Comment
LINUX KERNEL --
For those making use of the Linux kernel's integrated livepatch functionality, the time to load patched modules will be faster in some instances with the in-development Linux 4.12 kernel.

Jiri Kosina of SUSE sent in the livepatching updates today for the Linux 4.12 kernel. Aside from a per-task consistency model and other changes, what caught our attention is that the patch module load time is reduced for some modules.

Zhou Chengming of Huawei was looking to reduce the load time for one of their out-of-tree modules. It was originally taking 23 seconds but he dropped that down to one second by reducing the time of finding module symbols. For kernel modules with a lot of symbols, this patch should speed things up.

The other livepatching changes for Linux 4.12 can be found via this pull request.
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Michael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated benchmarking software. He can be followed via Twitter or contacted via MichaelLarabel.com.

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