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Re: [Xen-users] udp packet loss
| To: | jonr@xxxxxxxxxx, xen-users@xxxxxxxxxxxxxxxxxxx |
|---|---|
| Subject: | Re: [Xen-users] udp packet loss |
| From: | Hongbo Zhu <hongbo_zhu@xxxxxxxxx> |
| Date: | Fri, 24 Oct 2008 17:41:07 -0700 (PDT) |
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| Delivery-date: | Fri, 24 Oct 2008 17:41:48 -0700 |
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dmesg on both domU and dom0 showed nothing related to packet dropping. If I do "ifconfig peth0" on dom0, I can see the number of dropped packets keep increasing. From: "jonr@xxxxxxxxxx" <jonr@xxxxxxxxxx> To: xen-users@xxxxxxxxxxxxxxxxxxx Sent: Friday, October 24, 2008 5:34:19 PM Subject: Re: [Xen-users] udp packet loss Quoting Hongbo Zhu <hongbo_zhu@xxxxxxxxx>: > I was sending 5000 syslog messages per second to a virtual machine > running on a CentOS 5.2 host, I have a program running on the > virtual machine that receives and processes the syslog messages. > What I observed is that there is about 30% packets dropped by the > dom0 peth0 interface. During the test period, the CPU usage on the > virtual machine is about 30-40%. I already did : echo 256 > > /sys/class/net/eth0/rxbuf_min on the domU. > > Does anyone know how this happen? > > Thanks, > > Hongbo In 'dmesg' are you seeing connection tracking full dropping packets or something similar? Jon _______________________________________________ Xen-users mailing list Xen-users@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-users _______________________________________________ Xen-users mailing list Xen-users@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-users |
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