Matthias Babisch
2013-Sep-17 10:53 UTC
Re: [libvirt-users] libvirt-users Digest, Vol 45, Issue 28
Test libvirt-users-request@redhat.com schrieb:>Send libvirt-users mailing list submissions to > libvirt-users@redhat.com > >To subscribe or unsubscribe via the World Wide Web, visit > https://www.redhat.com/mailman/listinfo/libvirt-users >or, via email, send a message with subject or body 'help' to > libvirt-users-request@redhat.com > >You can reach the person managing the list at > libvirt-users-owner@redhat.com > >When replying, please edit your Subject line so it is more specific >than "Re: Contents of libvirt-users digest..." > > >Today's Topics: > > 1. Finding out CPU topology. (Peeyush Gupta) > 2. Re: Finding out CPU topology. (Daniel P. Berrange) > 3. Re: Finding out CPU topology. (Peeyush Gupta) > > >---------------------------------------------------------------------- > >Message: 1 >Date: Tue, 17 Sep 2013 17:41:12 +0800 (SGT) >From: Peeyush Gupta <gpeeyush@ymail.com> >To: "libvirt-users@redhat.com" <libvirt-users@redhat.com> >Subject: [libvirt-users] Finding out CPU topology. >Message-ID: > <1379410872.26498.YahooMailNeo@web194604.mail.sg3.yahoo.com> >Content-Type: text/plain; charset="iso-8859-1" > >Hi all, > >I have been trying to find out cpu topology using libvirt. When >I do 'virsh capabilites', I find this inside <topology> tag: > > ><topology> >? ? ? <cells num='1'> >? ? ? ? <cell id='0'> >? ? ? ? ? <memory unit='KiB'>3908488</memory> >? ? ? ? ? <cpus num='4'> >? ? ? ? ? ? <cpu id='0' socket_id='0' core_id='0' siblings='0'/> >? ? ? ? ? ? <cpu id='1' socket_id='0' core_id='0' siblings='1'/> >? ? ? ? ? ? <cpu id='2' socket_id='0' core_id='1' siblings='2'/> >? ? ? ? ? ? <cpu id='3' socket_id='0' core_id='1' siblings='3'/> >? ? ? ? ? </cpus> >? ? ? ? </cell> >? ? ? </cells> ></topology> > >But when I use the 'getCapbilities()' function of the python binding, >the result is: ><topology> ? ? >? <cells num='1'> ?? >? ? ?<cell id='0'> ? ? ? ?? >? ? ?<cpus num='4'> ?? >? ? ? ?<cpu id='0'/> >? ? ? ?<cpu id='1'/> >? ? ? ?<cpu id='2'/> >? ? ? ?<cpu id='3'/> ? ? ? ?? >? ? ?</cpus> ? ? ? ? >? ?</cell> ? ? ? >?</cells> ? ></topology>\n > >As you can see this doesnt give any information about >socket/core/thread etc. >What I an interested to know is that is it a limitation of python >binding or libvirt >C API itself? How can I get the whole topology without just parsing the >output >of virsh capabilities? > >Thanks. >~Peeyush Gupta >-------------- next part -------------- >An HTML attachment was scrubbed... >URL: ><https://www.redhat.com/archives/libvirt-users/attachments/20130917/ff834444/attachment.html> > >------------------------------ > >Message: 2 >Date: Tue, 17 Sep 2013 10:49:29 +0100 >From: "Daniel P. Berrange" <berrange@redhat.com> >To: Peeyush Gupta <gpeeyush@ymail.com> >Cc: "libvirt-users@redhat.com" <libvirt-users@redhat.com> >Subject: Re: [libvirt-users] Finding out CPU topology. >Message-ID: <20130917094929.GD28204@redhat.com> >Content-Type: text/plain; charset=utf-8 > >On Tue, Sep 17, 2013 at 05:41:12PM +0800, Peeyush Gupta wrote: >> Hi all, >> >> I have been trying to find out cpu topology using libvirt. When >> I do 'virsh capabilites', I find this inside <topology> tag: >> >> >> <topology> >> ? ? ? <cells num='1'> >> ? ? ? ? <cell id='0'> >> ? ? ? ? ? <memory unit='KiB'>3908488</memory> >> ? ? ? ? ? <cpus num='4'> >> ? ? ? ? ? ? <cpu id='0' socket_id='0' core_id='0' siblings='0'/> >> ? ? ? ? ? ? <cpu id='1' socket_id='0' core_id='0' siblings='1'/> >> ? ? ? ? ? ? <cpu id='2' socket_id='0' core_id='1' siblings='2'/> >> ? ? ? ? ? ? <cpu id='3' socket_id='0' core_id='1' siblings='3'/> >> ? ? ? ? ? </cpus> >> ? ? ? ? </cell> >> ? ? ? </cells> >> </topology> >> >> But when I use the 'getCapbilities()' function of the python binding, >> the result is: >> <topology> ? ? >> ? <cells num='1'> ?? >> ? ? ?<cell id='0'> ? ? ? ?? >> ? ? ?<cpus num='4'> ?? >> ? ? ? ?<cpu id='0'/> >> ? ? ? ?<cpu id='1'/> >> ? ? ? ?<cpu id='2'/> >> ? ? ? ?<cpu id='3'/> ? ? ? ?? >> ? ? ?</cpus> ? ? ? ? >> ? ?</cell> ? ? ? >> ?</cells> ? >> </topology>\n >> >> As you can see this doesnt give any information about >socket/core/thread etc. >> What I an interested to know is that is it a limitation of python >binding or libvirt >> C API itself? How can I get the whole topology without just parsing >the output >> of virsh capabilities? > >Did you really run these two examples on the same machine, with the >same >libvirt URI ? Both virsh and the python binding call the same libvirt >API >'virConnectGetCapabilities' so will return the same data if run against >the same libvirt. The socket_id, core_id and siblings data is a >relatively >new feature we added, so older libvirt won't show it. > >Daniel >-- >|: http://berrange.com -o- >http://www.flickr.com/photos/dberrange/ :| >|: http://libvirt.org -o- >http://virt-manager.org :| >|: http://autobuild.org -o- >http://search.cpan.org/~danberr/ :| >|: http://entangle-photo.org -o- >http://live.gnome.org/gtk-vnc :| > > > >------------------------------ > >Message: 3 >Date: Tue, 17 Sep 2013 17:54:40 +0800 (SGT) >From: Peeyush Gupta <gpeeyush@ymail.com> >To: "Daniel P. Berrange" <berrange@redhat.com> >Cc: "libvirt-users@redhat.com" <libvirt-users@redhat.com> >Subject: Re: [libvirt-users] Finding out CPU topology. >Message-ID: > <1379411680.85399.YahooMailNeo@web194601.mail.sg3.yahoo.com> >Content-Type: text/plain; charset="iso-8859-1" > >Yes, I have run both of them on same machine. And?I? >am running libvirt 1.1.0. So, I guess it's not ?a?problem? >of older version. >? >Thanks >~Peeyush Gupta > > >________________________________ > From: Daniel P. Berrange <berrange@redhat.com> >To: Peeyush Gupta <gpeeyush@ymail.com> >Cc: "libvirt-users@redhat.com" <libvirt-users@redhat.com> >Sent: Tuesday, 17 September 2013 3:19 PM >Subject: Re: [libvirt-users] Finding out CPU topology. > > >On Tue, Sep 17, 2013 at 05:41:12PM +0800, Peeyush Gupta wrote: >> Hi all, >> >> I have been trying to find out cpu topology using libvirt. When >> I do 'virsh capabilites', I find this inside <topology> tag: >> >> >> <topology> >> ? ? ? <cells num='1'> >> ? ? ? ? <cell id='0'> >> ? ? ? ? ? <memory unit='KiB'>3908488</memory> >> ? ? ? ? ? <cpus num='4'> >> ? ? ? ? ? ? <cpu id='0' socket_id='0' core_id='0' siblings='0'/> >> ? ? ? ? ? ? <cpu id='1' socket_id='0' core_id='0' siblings='1'/> >> ? ? ? ? ? ? <cpu id='2' socket_id='0' core_id='1' siblings='2'/> >> ? ? ? ? ? ? <cpu id='3' socket_id='0' core_id='1' siblings='3'/> >> ? ? ? ? ? </cpus> >> ? ? ? ? </cell> >> ? ? ? </cells> >> </topology> >> >> But when I use the 'getCapbilities()' function of the python binding, >> the result is: >> <topology> ? ? >> ? <cells num='1'> ?? >> ? ? ?<cell id='0'> ? ? ? ?? >> ? ? ?<cpus num='4'> ?? >> ? ? ? ?<cpu id='0'/> >> ? ? ? ?<cpu id='1'/> >> ? ? ? ?<cpu id='2'/> >> ? ? ? ?<cpu id='3'/> ? ? ? ?? >> ? ? ?</cpus> ? ? ? ? >> ? ?</cell> ? ? ? >> ?</cells> ? >> </topology>\n >> >> As you can see this doesnt give any information about >socket/core/thread etc. >> What I an interested to know is that is it a limitation of python >binding or libvirt >> C API itself? How can I get the whole topology without just parsing >the output >> of virsh capabilities? > >Did you really run these two examples on the same machine, with the >same >libvirt URI ? Both virsh and the python binding call the same libvirt >API >'virConnectGetCapabilities' so will return the same data if run against >the same libvirt. The socket_id, core_id and siblings data is a >relatively >new feature we added, so older libvirt won't show it. > >Daniel >-- >|: http://berrange.com? ? ? -o-? ? >http://www.flickr.com/photos/dberrange/ :| >|: http://libvirt.org? ? ? ? ? ? ? -o-? ? ? ? ? ? >http://virt-manager.org :| >|: http://autobuild.org? ? ? -o-? ? ? ? >http://search.cpan.org/~danberr/ :| >|: http://entangle-photo.org? ? ? -o-? ? ? >http://live.gnome.org/gtk-vnc :| >-------------- next part -------------- >An HTML attachment was scrubbed... >URL: ><https://www.redhat.com/archives/libvirt-users/attachments/20130917/df8c7fbf/attachment.html> > >------------------------------ > >_______________________________________________ >libvirt-users mailing list >libvirt-users@redhat.com >https://www.redhat.com/mailman/listinfo/libvirt-users > >End of libvirt-users Digest, Vol 45, Issue 28 >*********************************************-- Diese Nachricht wurde von meinem Android-Mobiltelefon mit K-9 Mail gesendet.
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