I am trying to compare the results that I am getting on a RHEL 5.3 server using xm list (using libvirt.so.0.3.3) against both my Dom0 and my Linux DomU on the same server to see if the cpu values match to what the kernel is reporting in /proc/stat. Here is an example of what I am seeing on both:
From Dom0:
$ sudo /usr/sbin/xm list;cat /proc/stat | grep cpu Name ID Mem(MiB) VCPUs State Time(s) Domain-0 0 746 1 r----- 73722.3 rhel5_01 1 255 1 -b---- 18558.4 cpu 412542 1477862 522101 1111350509 347838 0 262 487234 cpu0 412542 1477862 522101 1111350509 347838 0 262 487234
From DomU (rhelt_01):
$ cat /proc/stat | grep cpu cpu 138184 148634 246128 924538039 467802 133 178 339822 cpu0 138184 148634 246128 924538039 467802 133 178 339822 The results of the two do not appear close. Should the cpu times match, is this a bug, or does Time mean something different than I think it does?? Thanks. John
On Thu, Mar 11, 2010 at 04:46:45PM -0600, Tavares, John wrote:
I am trying to compare the results that I am getting on a RHEL 5.3 server using xm list (using libvirt.so.0.3.3) against both my Dom0 and my Linux DomU on the same server to see if the cpu values match to what the kernel is reporting in /proc/stat. Here is an example of what I am seeing on both:
I'm aftaid you're confused. xm is the xen direct command line tool it doesn't use libvirt at all. libvirt command line tool equivalent is virsh, Daniel -- Daniel Veillard | libxml Gnome XML XSLT toolkit http://xmlsoft.org/ daniel@veillard.com | Rpmfind RPM search engine http://rpmfind.net/ http://veillard.com/ | virtualization library http://libvirt.org/
Hi Dan. Ok, thanks. I am trying to play around with this and noticed that my code with does use libvirt reports the exact same values as xm. Either way, I do not see the values even being close. Is this expected and if so why?? -----Original Message----- From: Daniel Veillard [mailto:veillard@redhat.com] Sent: Friday, March 12, 2010 5:44 AM To: Tavares, John Cc: libvir-list@redhat.com Subject: Re: [libvirt] cpu values On Thu, Mar 11, 2010 at 04:46:45PM -0600, Tavares, John wrote:
I am trying to compare the results that I am getting on a RHEL 5.3 server using xm list (using libvirt.so.0.3.3) against both my Dom0 and my Linux DomU on the same server to see if the cpu values match to what the kernel is reporting in /proc/stat. Here is an example of what I am seeing on both:
I'm aftaid you're confused. xm is the xen direct command line tool it doesn't use libvirt at all. libvirt command line tool equivalent is virsh, Daniel -- Daniel Veillard | libxml Gnome XML XSLT toolkit http://xmlsoft.org/ daniel@veillard.com | Rpmfind RPM search engine http://rpmfind.net/ http://veillard.com/ | virtualization library http://libvirt.org/
As an example to show xm and virsh are reporting the same values: $ sudo virsh dominfo 0 Id: 0 Name: Domain-0 UUID: 00000000-0000-0000-0000-000000000000 OS Type: linux State: running CPU(s): 1 CPU time: 74108.3s Max memory: no limit Used memory: 763924 kB $ sudo /usr/sbin/xm vcpu-list Name ID VCPUs CPU State Time(s) CPU Affinity Domain-0 0 0 0 r-- 74108.6 any cpu rhel5_01 1 0 0 -b- 18642.5 any cpu $ cat /proc/stat | grep cpu cpu 414247 1485212 523903 1116332612 350887 0 262 488367 cpu0 414247 1485212 523903 1116332612 350887 0 262 488367 -----Original Message----- From: Tavares, John Sent: Friday, March 12, 2010 7:19 AM To: 'veillard@redhat.com' Cc: libvir-list@redhat.com Subject: RE: [libvirt] cpu values Hi Dan. Ok, thanks. I am trying to play around with this and noticed that my code with does use libvirt reports the exact same values as xm. Either way, I do not see the values even being close. Is this expected and if so why?? -----Original Message----- From: Daniel Veillard [mailto:veillard@redhat.com] Sent: Friday, March 12, 2010 5:44 AM To: Tavares, John Cc: libvir-list@redhat.com Subject: Re: [libvirt] cpu values On Thu, Mar 11, 2010 at 04:46:45PM -0600, Tavares, John wrote:
I am trying to compare the results that I am getting on a RHEL 5.3 server using xm list (using libvirt.so.0.3.3) against both my Dom0 and my Linux DomU on the same server to see if the cpu values match to what the kernel is reporting in /proc/stat. Here is an example of what I am seeing on both:
I'm aftaid you're confused. xm is the xen direct command line tool it doesn't use libvirt at all. libvirt command line tool equivalent is virsh, Daniel -- Daniel Veillard | libxml Gnome XML XSLT toolkit http://xmlsoft.org/ daniel@veillard.com | Rpmfind RPM search engine http://rpmfind.net/ http://veillard.com/ | virtualization library http://libvirt.org/
participants (2)
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Daniel Veillard -
Tavares, John