<div dir="ltr"><br><div class="gmail_extra"><br><div class="gmail_quote">On Fri, Mar 25, 2016 at 5:09 PM, Martin Blix Grydeland <span dir="ltr"><<a href="mailto:martin@varnish-software.com" target="_blank">martin@varnish-software.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div class="gmail_quote"><span class=""><div dir="ltr">On Fri, 25 Mar 2016 at 16:35 Nils Goroll <<a href="mailto:slink@schokola.de" target="_blank">slink@schokola.de</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><br>
is there a particular reason for pipe mode not using sendfile half the number of<br>
syscalls required and avoid copying to/from a userspace buffer?<br></blockquote><div><br></div></span><div>sendfile() requires the in_fd to be an fd supporting mmap-like operations, ie no network sockets.</div></div></div></blockquote><div><br></div><div>How about TCP Splicing? Shouldn't we be able to do that? If I'm not mistaken HA-Proxy used TCP Splicing for quite some time to avoid read/write copying to userspace.</div><div><br></div><div><br></div></div>-- <br><div class="gmail_signature"><div dir="ltr"><div><div dir="ltr"><table border="0" cellpadding="0" cellspacing="0" style="border-bottom-width:1px;padding-top:5px;border-top-style:solid;width:550px;padding-bottom:5px;border-bottom-color:rgb(238,238,238);border-top-width:1px;border-bottom-style:solid;line-height:1.5em;border-top-color:rgb(238,238,238);color:rgb(102,102,102);font-size:12px;font-family:'Helvetica Neue',Arial,sans-serif;margin-top:20px"><tbody><tr><td width="100"><img src="http://www.varnish-software.com/static/media/logo-email.png"></td><td><font color="#222222"><span style="font-size:14px"><b>Per Buer</b></span></font><br>CTO | Varnish Software AS<br>Cell: <a value="+4790181750" style="color:rgb(17,85,204)">+47 95839117</a><br><span style="font-weight:bold">We Make Websites Fly!<br><a href="https://www.varnish-software.com/" style="color:rgb(17,85,204)" target="_blank">www.varnish-software.com</a></span></td></tr></tbody></table><br><div style="color:rgb(136,136,136)"><a href="http://info.varnish-software.com/signature" target="_blank"><img src="http://files.varnish-software.com/signature.png"></a><br></div></div></div></div></div>
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