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Root filesystem was ext4, btrfs was mounted on /testfs. Then issuing access(2) in a loop on /testfs/repos/linux/include/linux/fs.h on Sapphire Rapids (ops/s): before: 3447976 after: 3620879 (+5%) Signed-off-by: Mateusz Guzik <mjguzik@gmail.com> Link: https://patch.msgid.link/20251107142149.989998-3-mjguzik@gmail.com Acked-by: David Sterba <dsterba@suse.com> Signed-off-by: Christian Brauner <brauner@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.