<html><head><style type='text/css'>p { margin: 0; }</style></head><body><div style='font-family: Times New Roman; font-size: 12pt; color: #000000'>Are you using venet or veth?<br><br>----- Original Message -----<br>From: "Russell Miller" <duskglow@gmail.com><br>To: users@openvz.org<br>Sent: Monday, February 23, 2009 12:34:54 PM GMT -05:00 US/Canada Eastern<br>Subject: [Users] Massive performance degradation<br><br>Hi all,<br><br>One of the things that I have been tasked with at work is doing<br>detailed performance analysis of openvz.<br><br>I have discovered that when running more than one guest and saturating<br>the bandwidth of both of them (I ran netperf to the same host on two<br>guests at the same time) I take a 20% hit in performance, invariably.<br>ie (approximately).<br><br>One guest: 900 Mb/s<br>Two guests: 700Mb/s total, around 350Mb/s per guest.<br><br>This is obviously a significant hit, and I can think of no reason<br>offhand for it. Has anyone here seen this kind of degradation?<br><br>--Russell<br>_______________________________________________<br>Users mailing list<br>Users@openvz.org<br>https://openvz.org/mailman/listinfo/users<br></div></body></html>