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d886724ea8
Add a command line option, -c, to pin vCPUs to physical CPUs (pCPUs), i.e. to force vCPUs to run on specific pCPUs. Requirement to implement this feature came in discussion on the patch "Make page tables for eager page splitting NUMA aware" https://lore.kernel.org/lkml/YuhPT2drgqL+osLl@google.com/ This feature is useful as it provides a way to analyze performance based on the vCPUs and dirty log worker locations, like on the different NUMA nodes or on the same NUMA nodes. To keep things simple, implementation is intentionally very limited, either all of the vCPUs will be pinned followed by an optional main thread or nothing will be pinned. Signed-off-by: Vipin Sharma <vipinsh@google.com> Suggested-by: David Matlack <dmatlack@google.com> Reviewed-by: Sean Christopherson <seanjc@google.com> Link: https://lore.kernel.org/r/20221103191719.1559407-8-vipinsh@google.com Signed-off-by: Sean Christopherson <seanjc@google.com>
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.