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For a typical vsync locked application running at 60fps, sampling at just under twice a frame doesn't seem to give very stable lists of relevent hardware units because there are a number of units involved that may not be sampled one second to the next. This bumps the sample rate to 10,000 instead which is ~ 170 samples per frame so we tend to hit all the units involved. It also changes the report threshold to a sample count >= 1, so you don't see as many units with a percentage of 0. Signed-off-by: Eric Anholt <eric@anholt.net>
This is a collection of tools for development and testing of the Intel DRM driver. There are many macro-level test suites that get used against our driver, including xtest, rendercheck, piglit, and oglconform, but failures from those can be difficult to track down to kernel changes, and many require complicated build procedures or specific testing environments to get useful results. Thus, intel-graphics-tools was a project I started to collect some low-level tools I intended to build. There are 3 subdirectories: benchmarks/ This should be a collection of useful microbenchmarks. The hope is that people can use these to tune some pieces of DRM code in relevant ways. The benchmarks require KMS to be enabled. When run with an X Server running, they must be run as root to avoid the authentication requirement. tests/ This is a set of automated tests to run against the DRM to validate changes. Hopefully this can cover the relevant cases we need to worry about, including backwards compatibility. To run the tests, do "sudo make check" from this directory with KMS enabled. tools/ This is a collection of debugging tools that had previously been built with the 2D driver but not shipped. Some distros were hacking up the 2D build to ship them. Instead, here's a separate package for people debugging the driver. These tools generally must be run as root.