8 ms·
You can actually go totally syscall free with io_uring, but that requires privileged mode as the setup call to enable the SQPOLL flag will fail otherwise. But y
by yxhuvud 7y ago
You can actually go totally syscall free with io_uring, but that requires privileged mode as the setup call to enable the SQPOLL flag will fail otherwise. But yeah, I suppose most people don't like running things as sudo.
- couchand 7y agoWell, not totally free. If you don't submit an event before the sq poll timeout the kernel thread will sleep and you need to call enter again to wake it up.