07e98eb0a1
Currently, if there is time remaining before the start of the loop, we do one full iteration over many possible different chunks within the object. A full loop may take 50+s (depending on speed of indirect GTT mmapings) and we try separately with LINEAR, X and Y -- at which point igt times out. If we check more frequently, we will interrupt the loop upon our timeout -- it is hard to argue for as this significantly reduces the test coverage as we dramatically reduce the runtime. In practical terms, the coverage we should prioritise is in using different fence setups, forcing verification of the tile row computations over the current preference of checking extracting chunks. Though the exhaustive search is great given an infinite timeout, to improve our current coverage, we also add a randomised smoketest of partial mmaps. So let's do both, add a randomised smoketest of partial tiling chunks and the exhaustive (though time limited) search for failures. Even in adding another subtest, we should shave 100s off BAT! (With, hopefully, no loss in coverage, at least over multiple runs.) Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Matthew Auld <matthew.auld@intel.com> Reviewed-by: Matthew Auld <matthew.auld@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190910121009.13431-1-chris@chris-wilson.co.uk
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.