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Domain-0 CPU

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cobrahost at hotmail

May 7, 2012, 7:18 AM

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Domain-0 CPU

What is the best way to make sure that domain-0 does not become overloaded?Because people keep loosing network-connectivity on XEN and regains connectivity.
Checked through the following command * xm top * and found out that the CPU was around 420% for domain-0See - http://pastie.org/3873596
# grub.conf generated by anaconda## Note that you do not have to rerun grub after making changes to this file# NOTICE: You have a /boot partition. This means that# all kernel and initrd paths are relative to /boot/, eg.# root (hd0,0)# kernel /vmlinuz-version ro root=/dev/VolGroup00/LogVol00# initrd /initrd-version.img#boot=/dev/sdadefault=0timeout=5splashimage=(hd0,0)/grub/splash.xpm.gzhiddenmenutitle CentOS (2.6.18-308.4.1.el5xen) root (hd0,0) kernel /xen.gz-4.1.2 dom0_mem=2048m dom0_max_vcpus=6 module /vmlinuz-2.6.18-308.4.1.el5xen ro root=/dev/VolGroup00/LogVol00 p$ module /initrd-2.6.18-308.4.1.el5xen.imgtitle CentOS (2.6.18-308.4.1.el5) root (hd0,0) kernel /vmlinuz-2.6.18-308.4.1.el5 ro root=/dev/VolGroup00/LogVol00 initrd /initrd-2.6.18-308.4.1.el5.imgtitle CentOS (2.6.18-308.el5) root (hd0,0) kernel /vmlinuz-2.6.18-308.el5 ro root=/dev/VolGroup00/LogVol00 initrd /initrd-2.6.18-308.el5.img
Anyone have a good idea on how to optimize our domain-0 to prevent such issues happening.

Subject User Time
Domain-0 CPU cobrahost at hotmail May 7, 2012, 7:18 AM

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