<div dir="ltr"><div class="gmail_extra"><div class="gmail_quote">On Wed, May 20, 2015 at 7:20 PM, kioto mitsubisi <span dir="ltr"><<a href="mailto:reader_1000@hotmail.com" target="_blank">reader_1000@hotmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex">
<div><div>(the worst email quoting I've even seen :-)</div></div></blockquote><div><br></div><div><br></div><div>The reason why Varnish uses more CPU when pass'ing requests is because it is a lot more work. A cache hit is delivered directly from (virtual) memory - in most cases physical memory. So, a cache hit is just a writev() and that is it, more or less.</div><div><br></div><div>With a pass you have to fetch it over the network and that involves another TCP connection, talking to a remote server, parsing stuff, storing it memory and then dumping it onto the connection.</div><div><br></div><div>So this behavior is expected.</div></div><div><br></div>-- <br><div class="gmail_signature"><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/varnish-summits-autumn-2014-registration" style="color:rgb(17,85,204)" target="_blank"><img src="https://www.varnish-software.com/sites/default/files/u388/masters_s_0.png" alt=" Register now"></a></div></div></div>
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