On 2024-07-02 14:09, greg zegan via PLUG-discuss wrote: > speaking of VMs I see they are migrating from VMWare to OpenShift from > Red Hat at work. > Anyone know more about this? Is it cost based? > no one is saying why here. > > On Tuesday, July 2, 2024 at 02:05:11 PM MST, Ryan Petris via > PLUG-discuss wrote: > > I think the option you're looking for is called "affinity": > > https://pve.proxmox.com/pve-docs/pve-admin-guide.html#qm_cpu_resource_limits > >> With the affinity option, you can specify the physical CPU cores >> that are used to run the VM’s vCPUs. Peripheral VM processes, such >> as those for I/O, are not affected by this setting. Note that the >> CPU affinity is not a security feature. > > That said, I'm wondering why you're wanting to do this, specifically > what you think you're going to gain over just allowing the kernel to > schedule things the way it normally does. > > For instance, it's not going to lock that core specifically for use to > that VM; other processes can still use that core. You'd literally have > to set the affinity of every single process on your system to specific > cores which would be an extreme pain. You still wouldn't have much > control over which cores receive interrupts and whatnot so even then > you still wouldn't have complete control. > > Just let the scheduler do its thing, otherwise you're likely going to > end up with weird issues that no one can help with or explain. > > On Tue, Jul 2, 2024, at 1:51 PM, Snyder, Alexander J via PLUG-discuss > wrote: > >> I have a VM running with QEMU on Debian, v is a TrueNAS. Although >> they give you a GUI to select options, it is my understanding that >> it's just pure QEMU running on the backend. >> >> In this VM, I have vCPUs configured. Thanks!! >> >> -- >> >> Thanks, >> >> Alexander >> >> Sent from my Google Pixel 7 Pro >> >> On Tue, Jul 2, 2024, 13:43 Keith Smith via PLUG-discuss >> wrote: >> >>> Hi, >>> >>> I've started to skim the Ubuntu docs on QEMU. It talks about >>> vCPUs. >>> >>> I've run both VirtualBox and Proxmox. Seems both VirtualBox and >>> Proxmox >>> >>> only allow for CPU allocation at the CPU level. >>> >>> I'd really like to be able allocate vCPUs. >>> >>> Do I understand this correctly? >>> >>> Thanks!! >>> >>> Keith >>> >>> --------------------------------------------------- >>> >>> PLUG-discuss mailing list: PLUG-discuss@lists.phxlinux.org >>> >>> To subscribe, unsubscribe, or to change your mail settings: >>> >>> https://lists.phxlinux.org/mailman/listinfo/plug-discuss >> >> --------------------------------------------------- >> >> PLUG-discuss mailing list: PLUG-discuss@lists.phxlinux.org >> >> To subscribe, unsubscribe, or to change your mail settings: >> >> https://lists.phxlinux.org/mailman/listinfo/plug-discuss > > --------------------------------------------------- > PLUG-discuss mailing list: PLUG-discuss@lists.phxlinux.org > To subscribe, unsubscribe, or to change your mail settings: > https://lists.phxlinux.org/mailman/listinfo/plug-discuss > --------------------------------------------------- > PLUG-discuss mailing list: PLUG-discuss@lists.phxlinux.org > To subscribe, unsubscribe, or to change your mail settings: > https://lists.phxlinux.org/mailman/listinfo/plug-discuss --------------------------------------------------- PLUG-discuss mailing list: PLUG-discuss@lists.phxlinux.org To subscribe, unsubscribe, or to change your mail settings: https://lists.phxlinux.org/mailman/listinfo/plug-discuss