<div dir="ltr"><div dir="ltr"><br></div><br><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><br>If you're on loopback and you'd like to close that gap, you need to turn<br> on SIO_LOOPBACK_FASTPATH. I've no idea if ASIO can do that for you, I'm<br> still on a pre-churn ASIO. An alternative is to bind to a real NIC, and<br> not go via loopback.<br> <br></blockquote><div><br></div><div>You can set any option you want on the underlying socket with socket::native_handle()</div><div><br></div><div><a href="https://www.boost.org/doc/libs/1_75_0/doc/html/boost_asio/reference/basic_stream_socket/native_handle.html">https://www.boost.org/doc/libs/1_75_0/doc/html/boost_asio/reference/basic_stream_socket/native_handle.html</a></div><div> </div></div>-- <br><div dir="ltr" class="gmail_signature"><div dir="ltr"><div><div dir="ltr">Richard Hodges<div><a href="mailto:hodges.r@gmail.com" target="_blank">hodges.r@gmail.com</a></div><div>office: +442032898513</div><div>home: +376841522</div><div>mobile: +376380212</div><div><br></div></div></div></div></div></div>