Alexander Bluhm wrote:
> Hi,
>
> Spliced TCP sockets become faster if we put the output part into
> its own task thread. This is inspired by userland copy where we
> also have to go through the scheduler. This gives the socket buffer
> a chance to be filled up and tcp_output() is called less often and
> with bigger chunks.
>
> ok?
> +void
> +sotask(void *arg)
> +{
> + struct socket *so = arg;
> + int s;
> +
> + s = splsoftnet();
> + if (so->so_rcv.sb_flagsintr & SB_SPLICE) {
> + /*
> + * We may not sleep here as sofree() and unsplice() may be
> + * called from softnet interrupt context. This would remove
> + * the socket during somove().
> + */
> + somove(so, M_DONTWAIT);
> + }
> + splx(s);
> +
> + /* Avoid user land starvation. */
> + yield();
you don't need to yield here, the task framework should do that for you.
