fix_tdr_delay

On Windows, there is a rule that says that if your program makes on operation on the GPU (like running a compute shader or a draw call) that takes more than X seconds, Windows will kill your program. By default this delay is set to 2 seconds, which can be very limiting for applications that make heavy use of the GPU. A much more sensible default would be something like 60 seconds. This can be changed with this library:

#include <fix_tdr_delay/fix_tdr_delay.hpp>

int main()
{
    auto const result = fix_tdr_delay::set_minimum_delay(60);
    if(!result.has_succeeded)
        // Display an error message
    if(result.needs_to_restart)
        // Prompt the user to restart their computer
}

Note that for the changes to take effect, the user needs to restart their computer.

More precisely, what set_minimum_delay() does is change the TdrDelay and TdrDdiDelay registry keys on Windows. For more information, you can read this article.

You can also get and set the values of the individual keys with get_tdr_delay(), set_tdr_delay(), get_tdr_ddi_delay() and set_tdr_ddi_delay().

Including

To add this library to your project, simply add these two lines to your CMakeLists.txt:

add_subdirectory(path/to/fix_tdr_delay)
target_link_libraries(${PROJECT_NAME} PRIVATE fix_tdr_delay::fix_tdr_delay)

Then include it as:

#include <fix_tdr_delay/fix_tdr_delay.hpp>

Running the tests

Simply use "tests/CMakeLists.txt" to generate a project, then run it.
If you are using VSCode and the CMake extension, this project already contains a .vscode/settings.json that will use the right CMakeLists.txt automatically.