Select, pselect

The select(), pselect() file descriptor set can consist of both accelerated and non-accelerated file descriptors. The environment variable EF_UL_SELECT enables/disables acceleration of the select(), pselect() function calls. Onload supports the following options for the EF_UL_SELECT variable:

Additional environment variables can be employed to control the select(), pselect() functions and to give priority to accelerated sockets over non-accelerated sockets and other file descriptors. Refer to EF_SELECT_FAST and EF_SELECT_SPIN.