Struct CountAndTime

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#[repr(C)]
pub struct CountAndTime { pub count: u64, pub time_enabled: u64, pub time_running: u64, }
Expand description

The value of a counter, along with timesharing data.

Some counters are implemented in hardware, and the processor can run only a fixed number of them at a time. If more counters are requested than the hardware can support, the kernel timeshares them on the hardware.

This struct holds the value of a counter, together with the time it was enabled, and the proportion of that for which it was actually running.

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§count: u64

The counter value.

The meaning of this field depends on how the counter was configured when it was built; see [‘Builder’].

§time_enabled: u64

How long this counter was enabled by the program, in nanoseconds.

§time_running: u64

How long the kernel actually ran this counter, in nanoseconds.

If time_enabled == time_running, then the counter ran for the entire period it was enabled, without interruption. Otherwise, the counter shared the underlying hardware with others, and you should prorate its value accordingly.

Trait Implementations§

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impl Clone for CountAndTime

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fn clone(&self) -> CountAndTime

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 CountAndTime

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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 Copy for CountAndTime

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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

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

Returns the argument unchanged.

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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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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
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<T> EventData for T
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