In order to support controller hot-plugging I was cheking for present joysticks once per frame (now I do it once every second) and I realized that my frames per second droped from 4 digit numbers to a few 30 to 40.
I traked the isue to the glfwJoystickPresent call and benchmarked-it; now even with the every second fix y have small hickups every (...) second.
Fun fact, after I plug the first controller the cost almost disapears, I am using Windows 10, Inpiron 15 5000 series and a XBOXONE controller.
Is this a normal expected behaviour?
GLFW_JOYSTICK_1 : 19.112301
GLFW_JOYSTICK_2 : 0.038061
GLFW_JOYSTICK_3 : 0.024804
GLFW_JOYSTICK_4 : 0.025659
GLFW_JOYSTICK_5 : 0.021382
GLFW_JOYSTICK_6 : 0.019672
GLFW_JOYSTICK_7 : 0.020527
GLFW_JOYSTICK_8 : 0.019672
GLFW_JOYSTICK_9 : 0.022238
GLFW_JOYSTICK_10 : 0.022666
GLFW_JOYSTICK_11 : 0.023521
GLFW_JOYSTICK_12 : 0.022665
GLFW_JOYSTICK_13 : 0.020956
GLFW_JOYSTICK_14 : 0.021383
GLFW_JOYSTICK_15 : 0.021811
GLFW_JOYSTICK_16 : 0.024376
GLFW_JOYSTICK_1 : 0.004705
GLFW_JOYSTICK_2 : 0.063721
GLFW_JOYSTICK_3 : 0.026942
GLFW_JOYSTICK_4 : 0.024377
GLFW_JOYSTICK_5 : 0.023093
GLFW_JOYSTICK_6 : 0.021383
GLFW_JOYSTICK_7 : 0.014968
GLFW_JOYSTICK_8 : 0.01454
GLFW_JOYSTICK_9 : 0.013685
GLFW_JOYSTICK_10 : 0.01454
GLFW_JOYSTICK_11 : 0.014112
GLFW_JOYSTICK_12 : 0.01454
GLFW_JOYSTICK_13 : 0.014112
GLFW_JOYSTICK_14 : 0.013685
GLFW_JOYSTICK_15 : 0.013685
GLFW_JOYSTICK_16 : 0.014112
EL JOYSTICK_0 (Microsoft PC-joystick driver) SE HA CONECTADO