Dear Martin, Thank you for your suggestion. I have submitted a bug report on this ( libvirt version 1.2.5). For your reference, the report No. is 1176584.
Just like you said, I set the affinity of my process to temporarily solve this problem. With my warmest regards Cheng -----Original Message----- From: Martin Kletzander [mailto:[email protected]] Sent: 2014年12月22日 18:13 To: WANG Cheng D Cc: [email protected] Subject: Re: [libvirt-users] why CPU pinning doesn't take effect when using lxc-enter-namespace to run an application On Mon, Dec 22, 2014 at 08:40:03AM +0000, WANG Cheng D wrote: >Dear all, > >I want my container to run on the third CPU core and I define this by the >following xml scrpits: ><vcpu placement="static" cpuset="3">1</vcpu> > >When I run my application in a container terminal, I can see the application >runs on the third core as expected. >When I run my application using lxc-enter-namespace, the CPU pinning doesn't >take effect, i.e., the application runs on a core which isn't the third one. > I'm not expert on lxc namespaces, but looking at the code I think that virDomainLxcEnterNamespace() just doesn't care about such settings. It does not put the PID created into the cgroup of that container nor does it put anywhere else. >How can I solve this problem? > I'm thinking of patching this part, but unsure what the right approach should be it feels like guessing. Could you create a bug for this issue, so we can track, please? In the meantime, I think it would work if you set the affinity of your process which is calling virDomainLxcEnterNamespace() before and restore it afterwards. Martin >Any replies are highly appreciated. > >Cheng >_______________________________________________ >libvirt-users mailing list >[email protected] >https://www.redhat.com/mailman/listinfo/libvirt-users _______________________________________________ libvirt-users mailing list [email protected] https://www.redhat.com/mailman/listinfo/libvirt-users
