[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-users] Xen 3.2 Bridge performance problem (debian lenny)
Just out of interest, do you any domu vmstat mpstat or sar output from the problem time? Sent from my iPhone On Jun 25, 2009, at 9:59 AM, Alexander Pirsig <alex@xxxxxxxxxx> wrote: Hi again,sorry it was my fault the problem is I used (ethtool -K xenbr1 tx off) in my DOM0-network config which is bad on high loads ;( right config that works for me looks like that:# eth1 -> intern 1 iface eth1 inet static up ifconfig eth1 0.0.0.0 promisc up # eth1 -> xenbr1 auto xenbr1 iface xenbr1 inet manual bridge_ports eth1 bridge_fd 1 bridge_stp off bridge_hello 1 post-up ethtool -K xenbr1 tx on down ifconfig xenbr1 down post-down brctl delbr xenbr1 The (ethtool -K xenbr1 tx off) needs to be inside of DOMu on postup Sorry again, Cheers, Alex Alexander Pirsig wrote:Hello everybody,at the moment we're have a strange problem during high load on our DOMUs Network services became unavailable for a short period connection time takes several seconds.Will the service (tomcat) is still available from inside of the domU connections from DOM0 and even from other servers hangs.If tried to desiable checksuming (ethtool -K eth0 tx off) on DOMUs interfacenetstat output DOMU is as follows: netstat -an|awk '/tcp/ {print $6}'|sort|uniq -c ============================= 231 ESTABLISHED 259 FIN_WAIT2 1 LAST_ACK 6 LISTEN 340 TIME_WAIT brctl show on DOM0: ============= bridge name bridge id STP enabled interfaces eth0 8000.001ec9edee5e no peth0 vif135.0 vif144.0 xenbr1 8000.001ec9edee60 no eth1 xenbr2 8000.0015178538c2 no eth2 vif134.0 vif137.0 xenbr3 8000.0015178538c3 no eth3 vif143.0 vif148.0 One of DOMUs configuration: ===================== kernel = '/boot/vmlinuz-2.6.26-2-xen-amd64' ramdisk = '/boot/initrd.img-2.6.26-2-xen-amd64' extra='console=hvc0' memory = '2400' vcpus = '8' # # Disk device(s). # root = '/dev/sda1 ro'disk = [ 'phy:system/tomcat03-disk,sda1,w', 'phy:system/tomcat03- swap,sda2,w' ]# # Hostname # name = 'tomcat03' # # Networking # vif = [ 'ip=192.168.0.98,mac=00:16:3E:41:2C:18,bridge=xenbr3' ] # # Behaviour # on_poweroff = 'destroy' on_reboot = 'restart' on_crash = 'restart' How can I repeat? Regards, Alex _______________________________________________ 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 _______________________________________________ Xen-users mailing list Xen-users@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-users
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