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Kumar Kartikeya Dwivedi says: ==================== General enhancements to rqspinlock stress test Three enchancements, details in commit messages. First, the CPU requirements are 2 for AA, 3 for ABBA, and 4 for ABBCCA, hence relax the check during module initialization. Second, add a per-CPU histogram to capture lock acquisition times to record which buckets these acquisitions fall into for the normal task context and NMI context. Anything below 10ms is not printed in detail, but above that displays the full breakdown for each context. Finally, make the delay of the NMI and task contexts configurable, set to 10 and 20 ms respectively by default. ==================== Link: https://patch.msgid.link/20251125020749.2421610-1-memxor@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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 reStructuredText 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.