[pve-devel] [PATCH guest-common 1/1] helpers: move get_cpuunits helper from qemu-server

[Thomas Lamprecht]

Am 07/10/2022 um 14:41 schrieb Fiona Ebner:
> while making it take the value directly instead of the config.
> 
> Signed-off-by: Fiona Ebner <f.ebner at proxmox.com>
> ---
>  src/PVE/GuestHelpers.pm | 16 ++++++++++++++++
>  1 file changed, 16 insertions(+)
> 
> diff --git a/src/PVE/GuestHelpers.pm b/src/PVE/GuestHelpers.pm
> index 0fe3fd6..f3a4202 100644
> --- a/src/PVE/GuestHelpers.pm
> +++ b/src/PVE/GuestHelpers.pm
> @@ -3,6 +3,7 @@ package PVE::GuestHelpers;
>  use strict;
>  use warnings;
>  
> +use PVE::CGroup;
>  use PVE::Tools;
>  use PVE::Storage;
>  
> @@ -246,4 +247,19 @@ sub config_with_pending_array {
>      return $res;
>  }
>  
> +sub get_cpuunits {
> +    my ($cpuunits) = @_;
> +
> +    my $is_cgroupv2 = PVE::CGroup::cgroup_mode() == 2;
> +
> +    return $is_cgroupv2 ? 100 : 1024 if !defined($cpuunits);
> +
> +    if ($is_cgroupv2) {
> +	$cpuunits = 10000 if $cpuunits >= 10000; # v1 can be higher, so clamp v2 there
> +    } else {
> +	$cpuunits = 2 if $cpuunits < 2; # v2 can be lower, so clamp v1 there
> +    }
> +    return $cpuunits;
> +}
> +
>  1;

replaced with adding a similar clamp_cpu_shares method to pve-common's PVE::CGroup module