Hi list.
Im Running xen on a brand new dell PE 1950 with 146 GB SAS Disk on raid1. The performance on the I/O on the domU is really poor, but in dom0 the performance is great.
Any ideas?
Regards Francisco.
Francisco Pérez fperez.x@gmail.com writes:
Hi list.
Im Running xen on a brand new dell PE 1950 with 146 GB SAS Disk on raid1. The performance on the I/O on the domU is really poor, but in dom0 the performance is great.
Are you using HVM?
No, the domu's are para-virtualized guest.
2009/5/19 Luke S Crawford lsc@prgmr.com
Francisco Pérez fperez.x@gmail.com writes:
Hi list.
Im Running xen on a brand new dell PE 1950 with 146 GB SAS Disk on raid1. The performance on the I/O on the domU is really poor, but in dom0 the performance is great.
Are you using HVM? _______________________________________________ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt
Francisco Pérez fperez.x@gmail.com writes:
No, the domu's are para-virtualized guest.
Are you using file:// devices?
I ask because I use lvm-backed phy:// devices and I get near native disk performance. Attach the config file for the domain (usually /etc/xen/domainname)
OK, here it is:
name = "vm01" uuid = "2fa05fe5-9b52-3527-5bf5-efb88555c567" maxmem = 5836 memory = 5836 vcpus = 1 bootloader = "/usr/bin/pygrub" on_poweroff = "destroy" on_reboot = "restart" on_crash = "restart" vfb = [ ] disk = [ "tap:aio:/var/lib/xen/images/vm01.img,xvda,w" ] vif = [ "mac=00:16:3e:15:6f:cd,bridge=xenbr0" ]
Thanks. 2009/5/19 Luke S Crawford lsc@prgmr.com
Francisco Pérez fperez.x@gmail.com writes:
No, the domu's are para-virtualized guest.
Are you using file:// devices?
I ask because I use lvm-backed phy:// devices and I get near native disk performance. Attach the config file for the domain (usually /etc/xen/domainname)
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