Struct CompressionMetrics 

pub struct CompressionMetrics {
    pub n_parameters: u64,
    pub original_bits_per_param: f32,
    pub effective_bits_per_param: f32,
    pub sparsity: f32,
    pub quantization_mse: f32,
}

Compression statistics for a single layer or entire model.

Fields

n_parameters: u64

Number of parameters.

original_bits_per_param: f32

Bit-width of the original (full-precision) representation.

effective_bits_per_param: f32

Effective bit-width used in the compressed representation. For quantized weights this equals quant_bits; for pruned weights the effective bits = quant_bits × (1 − sparsity).

sparsity: f32

Fraction of weights that are pruned ∈ [0, 1].

quantization_mse: f32

Mean squared quantization error (0 if no quantization was applied).

Implementations

impl CompressionMetrics

pub fn quantized_only( n_parameters: u64, quant_bits: u32, quant_mse: f32, ) -> Self

Create metrics for a layer quantized to quant_bits bits with no pruning.

pub fn pruned_only(n_parameters: u64, sparsity: f32) -> Self

Create metrics for a layer pruned to sparsity with FP32 weights.

pub fn quantized_and_pruned( n_parameters: u64, quant_bits: u32, sparsity: f32, quant_mse: f32, ) -> Self

Create metrics for a layer that is both quantized and pruned.

pub fn compression_ratio(&self) -> f32

Ratio of original to compressed storage: original_bits / effective_bits.

Returns f32::INFINITY if the effective bits per param is 0.

pub fn total_original_bits(&self) -> f64

Total original bits for this layer.

pub fn total_compressed_bits(&self) -> f64

Total compressed bits for this layer.

Trait Implementations

impl Clone for CompressionMetrics

fn clone(&self) -> CompressionMetrics

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CompressionMetrics

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

Formats the value using the given formatter.

impl Default for CompressionMetrics

fn default() -> CompressionMetrics

Returns the “default value” for a type.