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ccdec92198
When CONFIG_WQ_CPU_INTENSIVE_REPORT is set, the kernel will report the work functions which violate the intensive_threshold_us repeatedly. And now, only when the violate times exceed 4 and is a power of 2, the kernel warning could be triggered. However, sometimes, even if a long work execution time occurs only once, it may cause other work to be delayed for a long time. This may also cause some problems sometimes. In order to freely control the threshold of warninging, a boot argument is added so that the user can control the warning threshold to be printed. At the same time, keep the exponential backoff to prevent reporting too much. By default, the warning threshold is 4. tj: Updated kernel-parameters.txt description. Signed-off-by: Xuewen Yan <xuewen.yan@unisoc.com> Signed-off-by: Tejun Heo <tj@kernel.org> |
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Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.