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RayonProfile

cgp::profilers::rayon_parallel

Struct RayonProfile 

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pub struct RayonProfile {
    pub wall_time_us: f64,
    pub single_thread_time_us: f64,
    pub parallel_speedup: f64,
    pub num_threads: usize,
    pub parallel_efficiency: f64,
    pub heijunka_score: f64,
    pub thread_spawn_overhead_us: f64,
    pub work_steal_count: u64,
}
Expand description

Rayon parallel profile output.

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§wall_time_us: f64§single_thread_time_us: f64§parallel_speedup: f64§num_threads: usize§parallel_efficiency: f64§heijunka_score: f64

0.0 = perfect balance, 1.0 = all work on 1 thread.

§thread_spawn_overhead_us: f64§work_steal_count: u64

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impl RayonProfile

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pub fn compute_heijunka_score(per_thread_times: &[f64]) -> f64

Compute Heijunka (load balance) score from per-thread work times. Score = coefficient of variation of per-thread times. 0.0 = perfect balance, higher = more imbalanced.

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pub fn compute_speedup(single_thread_us: f64, parallel_us: f64) -> f64

Estimate parallel speedup from single-thread and multi-thread wall times.

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pub fn compute_efficiency(speedup: f64, num_threads: usize) -> f64

Compute parallel efficiency: speedup / num_threads (1.0 = ideal).

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impl Clone for RayonProfile

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fn clone(&self) -> RayonProfile

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for RayonProfile

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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<'de> Deserialize<'de> for RayonProfile

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fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>
where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer. Read more
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impl Serialize for RayonProfile

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fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>
where __S: Serializer,

Serialize this value into the given Serde serializer. Read more

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

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fn type_id(&self) -> TypeId

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

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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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<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

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impl<T, U> Into<U> for T
where U: From<T>,

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

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
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type Error = Infallible

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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

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impl<T, U> TryInto<U> for T
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type Error = <U as TryFrom<T>>::Error

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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

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impl<T> DeserializeOwned for T
where T: for<'de> Deserialize<'de>,