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<p class="MsoNormal">Hello again,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span lang="EN-US">I’ve tried to benchmark Kea 0.9, using perfdhcp.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I’m measuring the number of DORA transactions/s the server is able to handle without client experiencing drops (with default perfdhcp drop-time of 1 sec).<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">From Kea Update #3:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">“Kea now offers reasonably high performance, leases per second wise. We managed to get over 1000 leases/sec for MySQL and 8000 leases/sec for memfile in memory-only mode on one of our high-performance servers.
</span>(Your mileage may vary.) »<o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">I don’t expect the same numbers, since I don’t have the same server and setup than you do, but still these are useful comparison values.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">With a persistent memfile, I get about 4100 leases/sec.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">This is about half your number, but still good.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">As a comparison, on the same scenario dhcpd (with a single process) handles at most 70 leases/s.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">With MySQL, though, I do not manage to get anywhere your numbers.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I manage to get about 50 leases/s (which is worse than dhcpd…)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I’m using MySQL 5.6.20. I’ve created the schema using the script provided with the kea 0.9 package.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I left all MySQL parameters as default.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">The CPU usage is very low: about 5% for mysqld, and 3% for kea-dhcp4 (both processes, as well as the datafiles, are on the same server)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Memory isn’t an issue either.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I’ve noticed that Kea uses a single database handle.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Wouldn’t that be a bottleneck ? (and isn’t Kea server multi-threaded ?)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">So my question is, how did you manage to get 1000 leases/s ? am I doing something wrong ? do you have recommandations for the MySQL setup ?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Thanks in advance for any advice.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Nicolas.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
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