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62 lines
3.4 KiB
Markdown
translating---geekpi
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Linux Weather Forecast
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============================================================
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### Welcome to the Linux Weather Forecast
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This page is an attempt to track ongoing developments in the Linux development community that have a good chance of appearing in a mainline kernel and/or major distributions sometime in the near future. Your "chief meteorologist" is Jonathan Corbet, Executive Editor at [LWN.net][8]. If you have suggestions on improving the forecast (and particularly if you have a project or patchset that you think should be tracked), please add your comments below.
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### Forecast Summaries
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**Current conditions**: The 4.12 kernel was released on July 2\. It contains many new features, including:
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* The [BFQ and Kyber block I/O schedulers][2]. BFQ, which has been under development for years, promises better performance on interactive systems and has attracted interest in the mobile device area. Kyber, instead, is a much simpler scheduler intended for fast devices typically found in enterprise settings.
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* The epoll_wait() system call can now perform busy-polling of network sockets.
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* The live-patching mechanism has gained the [hybrid consistency model][3], which will allow more complex patches to be applied to running kernels.
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* The [trusted execution framework][4] should ease dealings between the kernel and code running in the ARM TrustZone secure world.
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4.12 was one of the busiest kernel development cycles ever, with nearly 15,000 changes merged. See [this article][9] for an overview of where those changes came from.
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**Short-term forecast**: The 4.13 kernel can be expected in early September 2017. Some of the changes that will be found in this kernel are:
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* Better support for non-blocking direct block I/O operations.
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* The [structure-layout randomization mechanism][5] is the next step in the ongoing project of hardening the kernel against attack.
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* The kernel now has [native support for the TLS network protocol][6].
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* Steps toward the [swapping of transparent huge pages][7] have been taken, leading eventually to better memory-management performance.
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* The handling of writeback errors in the block subsystem [has been improved][1], with the result that errors are far less likely to go unreported to the application writing the data.
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The 4.13 kernel is in the stabilization period now, so only fixes will be accepted during the remainder of this development cycle.
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This [work][10] is licensed under a [Creative Commons Attribution-ShareAlike 3.0 License][11].
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--------------------------------------------------------------------------------
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via: https://www.linux.com/news/2017/7/linux-weather-forecast
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作者：[JONATHAN CORBET][a]
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译者：[译者ID](https://github.com/译者ID)
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校对：[校对者ID](https://github.com/校对者ID)
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本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
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[a]:https://www.linux.com/users/corbet
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[1]:https://lwn.net/Articles/724307/
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[2]:https://lwn.net/Articles/720675/
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[3]:https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=d83a7cb375eec21f04c83542395d08b2f6641da2
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[4]:https://lwn.net/Articles/717125/
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[5]:https://lwn.net/Articles/722293/
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[6]:https://lwn.net/Articles/666509/
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[7]:https://lwn.net/Articles/717707/
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[8]:http://www.lwn.net/
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[9]:https://lwn.net/Articles/726950/
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[10]:http://purl.org/dc/elements/1.1/
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[11]:http://creativecommons.org/licenses/by-sa/3.0/
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