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7033c6cc96
Mismatch index is currently being checked by a brute force iteration over the buffer. Instead, break the comparison into O(sqrt(n)) number of chunks, with the chunk size of this order only, where n is the size of the buffer. Do a brute-force iteration to print to stdout only when the highly optimized memcmp() library function returns a mismatch in the chunk. The time complexity of this algorithm is O(sqrt(n)) * t, where t is the time taken by memcmp(); for our test conditions, it is safe to assume t to be small. Link: https://lkml.kernel.org/r/20240330173557.2697684-3-dev.jain@arm.com Signed-off-by: Dev Jain <dev.jain@arm.com> Cc: Anshuman Khandual <anshuman.khandual@arm.com> Cc: John Hubbard <jhubbard@nvidia.com> Cc: Kalesh Singh <kaleshsingh@google.com> Cc: Shuah Khan <shuah@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.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.