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bb4b8f9697
When not running as root and with higher perf event paranoia values the perf record forked by TPEBS can fail to attach to the process. Skip the test in these scenarios. Intel TPEBS test skips on non-Intel CPUs. On Intel CPUs under a hypervisor the cache-misses event may not be present or precise. Skip the test under this condition. Refactor the output code to be placed in a file so that on a signal the file can be dumped. This was necessary to catch the issue above as the failing perf record command would fail without output. Signed-off-by: Ian Rogers <irogers@google.com> Tested-by: Thomas Falcon <thomas.falcon@intel.com> Cc: Weilin Wang <weilin.wang@intel.com> Cc: James Clark <james.clark@linaro.org> Link: https://lore.kernel.org/r/20250130170135.5817-1-irogers@google.com Signed-off-by: Namhyung Kim <namhyung@kernel.org> |
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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.