<html><body><div style="color:#000; background-color:#fff; font-family:Courier New, courier, monaco, monospace, sans-serif;font-size:10pt"><div style="font-family: 'Courier New', courier, monaco, monospace, sans-serif; font-size: 10pt; "><span>hi,</span></div><div style="font-family: 'Courier New', courier, monaco, monospace, sans-serif; font-size: 13px; color: rgb(0, 0, 0); background-color: transparent; font-style: normal; "><span><br></span></div><div style="font-family: 'Courier New', courier, monaco, monospace, sans-serif; font-size: 13px; color: rgb(0, 0, 0); background-color: transparent; font-style: normal; "><span>Could you let us know your stress test environment and procedures?</span></div><div style="background-color: transparent; "><span><font size="2">I didn't encounter this issue before.</font></span></div><div style="font-family: 'Courier New', courier, monaco, monospace, sans-serif; font-size: 10pt; "></div><div
style="font-family: 'Courier New', courier, monaco, monospace, sans-serif; font-size: 10pt; "> </div><div style="font-family: 'Courier New', courier, monaco, monospace, sans-serif; font-size: 10pt; "><font face="Courier New, courier, monaco, monospace, sans-serif">Regards,<br>willfu<var id="yui-ie-cursor"></var></font></div><div style="font-family: 'Courier New', courier, monaco, monospace, sans-serif; font-size: 10pt; "><br></div> <div style="font-family: 'Courier New', courier, monaco, monospace, sans-serif; font-size: 10pt; "> <div style="font-family: 'times new roman', 'new york', times, serif; font-size: 12pt; "> <div dir="ltr"> <font size="2" face="Arial"> <hr size="1"> <b><span style="font-weight:bold;">发件人：</span></b> 한승진 <yongiman@gmail.com><br> <b><span style="font-weight: bold;">收件人：</span></b> openstack@lists.launchpad.net <br> <b><span style="font-weight: bold;">发送日期：</span></b> 2012年11月7日,
星期三, 上午 9:20<br> <b><span style="font-weight: bold;">主题:</span></b> [Openstack] vm is disconnected when I use VirtIO network driver<br> </font> </div> <br><div id="yiv119114063">Hi.<div><br></div><div>We use VirtIO as a network driver and use KVM as a hypervisor.</div><div><br></div><div>Now, we have been having a instance stress test. (disk,cpu,network else..)</div><div><br></div><div>When we had a stress test, several instances are disconnected and down.</div>
<div><br></div><div>After rebooting the instance, we can access the instance again.</div><div><br></div><div>We doubted the network driver.</div><div><br></div><div>We change network driver from virtio to e1000.</div><div>
<br></div><div>There were no instances that were down or disconnected.</div><div><br></div><div>However, performance of e1000 is terrible..</div><div><br></div><div>Who have experienced like this situation?</div><div><br>
</div><div>VirtIO is still unstable?</div><div><br></div><div>Please tell us the reason and how to resolve this problem.</div><div><br></div><div><br></div><div><br></div><div><br></div><div><br></div><div><br></div><div>
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