Re: [Beast] Slow HTTP connect on Windows. Normal?

From: Dominique Devienne (ddevienne_at_[hidden])
Date: 2020-12-14 19:14:22

On Mon, Dec 14, 2020 at 7:42 PM Niall Douglas via Boost-users <
boost-users_at_[hidden]> wrote:

> > While using e.g. tcp::endpoint{ tcp::v6(), port } results in 20-30ms
> > connection times on Windows. (2-3ms on Linux).
>
> If you're on loopback and you'd like to close that gap, you need to turn
> on SIO_LOOPBACK_FASTPATH. I've no idea if ASIO can do that for you, I'm
> still on a pre-churn ASIO. An alternative is to bind to a real NIC, and
> not go via loopback.
>

No sure to follow. Loopback only allows local (same host) connection, no?
What do you mean bind to a real NIC? That actual DHCP allocation IP?

If you're on a real NIC over a real network, I find a 20-30ms connection
> time abnormal. Windows 10 has a fast TCP stack, compared to previous
> Windows. It should be single digit milliseconds.
>

Yes to both. Not sure how to diagnose this further though. --DD