- Name
-
udp_send_spin - Default
-
0 - Minimum
-
0 - Maximum
-
1 - Scope
- per-process
Spin in blocking UDP send calls until space becomes available in the socket buffer, the spin timeout expires or the socket timeout expires (whichever is the sooner). If the spin timeout expires, enter the kernel and block. The spin timeout is set by EF_SPIN_USEC or EF_POLL_USEC.
Note: UDP sends usually complete very quickly, but can block if the application does a large burst of sends at a high rate. This option reduces jitter when such blocking is needed.