Re: CPU hot-plug and RAM hot-add in virtual machines

2021-07-21 Thread Johannes Totz
On 21/07/2021 13:07, Miroslav Lachman wrote: On 21/07/2021 12:45, Andriy Gapon wrote: On 21/07/2021 11:53, Miroslav Lachman wrote: On 09/07/2021 13:16, Andriy Gapon wrote: [..] Thank you for your reply. I know nothing about system internals. Is it too much work to implement it or just nobod

Re: CPU hot-plug and RAM hot-add in virtual machines

2021-07-21 Thread Doug McIntyre
On Wed, Jul 21, 2021 at 02:06:07PM +0200, Miroslav Lachman wrote: > I don't need that badly but it is another problem our customers have > with FreeBSD over Linux. One of them has about 50 VM, mostly Linux, some > Windows and 8 FreeBSD. I'm also a cloud provider. Again, I've maybe had one custo

Re: CPU hot-plug and RAM hot-add in virtual machines

2021-07-21 Thread Miroslav Lachman
On 21/07/2021 12:45, Andriy Gapon wrote: On 21/07/2021 11:53, Miroslav Lachman wrote: On 09/07/2021 13:16, Andriy Gapon wrote: [..] Thank you for your reply. I know nothing about system internals. Is it too much work to implement it or just nobody from developers need it thus nobody write t

Re: CPU hot-plug and RAM hot-add in virtual machines

2021-07-21 Thread Miroslav Lachman
On 21/07/2021 11:58, Rainer Duffner wrote: My guess is that it’s something that is very much tied to the Linux kernel. AFAIK, it works on RHEL (and derivatives), and that’s usually a sign that it’s 100% tied to the Linux-kernel. We have over 20 Vcenters (yeah...) with thousands of VMs and AF

Re: CPU hot-plug and RAM hot-add in virtual machines

2021-07-21 Thread Andriy Gapon
On 21/07/2021 11:53, Miroslav Lachman wrote: On 09/07/2021 13:16, Andriy Gapon wrote: On 08/07/2021 00:34, Miroslav Lachman wrote: The question is simple but I cannot find answer - Does FreeBSD support hot-plug vCPU and hot-add RAM? Current virtualization platforms support adding CPU cores or a

Re: CPU hot-plug and RAM hot-add in virtual machines

2021-07-21 Thread Rainer Duffner
> Am 21.07.2021 um 10:53 schrieb Miroslav Lachman <000.f...@quip.cz>: > > On 09/07/2021 13:16, Andriy Gapon wrote: >> On 08/07/2021 00:34, Miroslav Lachman wrote: >>> The question is simple but I cannot find answer - Does FreeBSD support >>> hot-plug vCPU and hot-add RAM? >>> Current virtualiz

Re: CPU hot-plug and RAM hot-add in virtual machines

2021-07-21 Thread Miroslav Lachman
On 09/07/2021 13:16, Andriy Gapon wrote: On 08/07/2021 00:34, Miroslav Lachman wrote: The question is simple but I cannot find answer - Does FreeBSD support hot-plug vCPU and hot-add RAM? Current virtualization platforms support adding CPU cores or additional RAM without the need to reboot the