Enum ScalingPolicy 

pub enum ScalingPolicy {
    Fixed,
    Step {
        scale_up_threshold: f64,
        scale_down_threshold: f64,
        step_size: u64,
        min_capacity: u64,
        max_capacity: u64,
    },
    TargetTracking {
        target_utilisation: f64,
        min_capacity: u64,
        max_capacity: u64,
    },
}

Scaling policy for a resource.

Variants

Fixed

Fixed capacity — no scaling.

Step

Step scaling: increase by step_size when utilisation exceeds scale_up_threshold, decrease when below scale_down_threshold.

Fields

scale_up_threshold: f64

Utilisation threshold to trigger scale-up.

scale_down_threshold: f64

Utilisation threshold to trigger scale-down.

step_size: u64

Amount to add/remove per scaling event.

min_capacity: u64

Minimum capacity (never scale below this).

max_capacity: u64

Maximum capacity (never scale above this).

TargetTracking

Target tracking: adjust capacity to maintain a target utilisation.

Fields

target_utilisation: f64

Target utilisation (0.0..1.0).

min_capacity: u64

Minimum capacity.

max_capacity: u64

Maximum capacity.

Trait Implementations

impl Clone for ScalingPolicy

fn clone(&self) -> ScalingPolicy

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ScalingPolicy

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.