- Name
-
ul_select_fast
- Default
-
1
- Minimum
-
0
- Maximum
-
1
- Scope
- per-process
Allow a select()
call to return without inspecting the state of all selected file descriptors when at least one selected event is satisfied. This allows the accelerated select()
call to avoid a system call when accelerated sockets are 'ready', and can increase performance substantially.
This option changes the semantics of select()
, and as such could cause applications to misbehave. It effectively gives priority to accelerated sockets over non-accelerated sockets and other file descriptors. In practice a vast majority of applications work fine with this option.