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CompressionStats

cqlite_core::storage::sstable::compression

Struct CompressionStats 

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pub struct CompressionStats {
    pub original_size: u64,
    pub compressed_size: u64,
    pub ratio: f64,
    pub algorithm: CompressionAlgorithm,
}
Expand description

Compression statistics

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§original_size: u64

Original size in bytes

§compressed_size: u64

Compressed size in bytes

§ratio: f64

Compression ratio (compressed / original)

§algorithm: CompressionAlgorithm

Compression algorithm used

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impl CompressionStats

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pub fn calculate( original_size: u64, compressed_size: u64, algorithm: CompressionAlgorithm, ) -> Self

Calculate compression statistics

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pub fn space_saved(&self) -> u64

Get space saved in bytes

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pub fn compression_percentage(&self) -> f64

Get compression percentage

Trait Implementations§

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impl Clone for CompressionStats

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fn clone(&self) -> CompressionStats

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 CompressionStats

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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 CompressionStats

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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 CompressionStats

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

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

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impl<ST, DT> CastableFrom<ST, Initialized, Initialized> for DT
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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> DeserializeOwned for T
where T: for<'de> Deserialize<'de>,

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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> Pointable for T

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const ALIGN: usize

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type Init = T

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unsafe fn init(init: <T as Pointable>::Init) -> usize

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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

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impl<T> Read<Exclusive, BecauseExclusive> for T
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type Owned = T

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type Error = Infallible

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Performs the conversion.
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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>

Performs the conversion.