<html><head><meta http-equiv="Content-Type" content="text/html charset=GB2312"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">I'm pretty sure you are comparing qps to pps and being surprised that there is not a 1:1 relationship.<div><br></div><div>matto</div><div><br><div><div>On Jan 25, 2013, at 11:11 AM, Liu Mingxing <<a href="mailto:lmxhappy@gmail.com">lmxhappy@gmail.com</a>> wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><span style="font-family: ΢ÈíÑźÚ; font-size: 14px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: 21px; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; display: inline !important; float: none; ">By a rrdtool, I found that DNS traffic of router before an authoritative nameserver is larger than those seen from querylog. For example, cacti tells us qps is 2k while querylog shows a smaller qps.</span></blockquote></div><br></div></body></html>