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The -n mode will benchmark pipes in a non-blocking mode using epoll_wait. This specific mode was added to demonstrate the broken sync nature of epoll: https://lore.kernel.org/lkml/20240426-zupfen-jahrzehnt-5be786bcdf04@brauner Signed-off-by: Brian Geffon <bgeffon@google.com> Reviewed-by: Ian Rogers <irogers@google.com> Cc: Steven Rostedt <rostedt@goodmis.org> Link: https://lore.kernel.org/r/20241016190009.866615-1-bgeffon@google.com Signed-off-by: Namhyung Kim <namhyung@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.