Struct TierPolicy

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pub struct TierPolicy {
    pub hot_threshold_access_rate: f64,
    pub warm_threshold_access_rate: f64,
    pub cold_threshold_access_rate: f64,
}

Expand description

Access-rate thresholds that govern classification into tiers.

A block is placed in the highest tier whose threshold it meets:

access_rate >= hot_threshold → Hot
access_rate >= warm_threshold → Warm
access_rate >= cold_threshold → Cold
otherwise → Archive

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§hot_threshold_access_rate: f64

Minimum accesses/sec to remain in Hot tier (default: 1.0).

§warm_threshold_access_rate: f64

Minimum accesses/sec to remain in Warm tier (default: 0.1).

§cold_threshold_access_rate: f64

Minimum accesses/sec to remain in Cold tier (default: 0.01).

Implementations§

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impl TierPolicy

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pub fn classify(&self, access_rate: f64) -> StorageTier

Classify a block given its current access_rate (accesses per second).

Trait Implementations§

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impl Clone for TierPolicy

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fn clone(&self) -> TierPolicy

Returns a duplicate of the value. Read more

1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more

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impl Debug for TierPolicy

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

Formats the value using the given formatter. Read more

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impl Default for TierPolicy

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fn default() -> Self

Returns the “default value” for a type. Read more

Auto Trait Implementations§

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impl UnwindSafe for TierPolicy

Blanket Implementations§

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impl<T> Allocation for T
where T: RefUnwindSafe + Send + Sync,

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

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impl<ST, DT> CastableFrom<ST, Initialized, Initialized> for DT
where ST: ?Sized, DT: ?Sized,

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impl<ST, DT> CastableFrom<ST, Uninit, Uninit> for DT
where ST: ?Sized, DT: ?Sized,

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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)

Performs copy-assignment from self to dest. Read more

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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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