Struct MemoryFragmentationSnapshot 

pub struct MemoryFragmentationSnapshot {
    pub timestamp: DateTime<Utc>,
    pub device_id: i32,
    pub total_memory: usize,
    pub free_memory: usize,
    pub largest_free_block: Option<usize>,
    pub fragmentation_ratio: Option<f64>,
    pub free_block_distribution: Option<Vec<usize>>,
    pub external_fragmentation: Option<f64>,
    pub internal_fragmentation: Option<f64>,
}

Memory fragmentation analysis

Fields

timestamp: DateTime<Utc>

device_id: i32

total_memory: usize

Capacity this pool was configured with – see GpuMemoryPool’s own doc comment for how that number is obtained (this crate has no pure-Rust GPU memory query API).

free_memory: usize

Real remaining capacity: total_memory minus the real sum of currently-outstanding allocations tracked via AdvancedGpuMemoryProfiler::track_allocation / AdvancedGpuMemoryProfiler::track_deallocation – genuine bookkeeping from real call arguments, not fabricated.

largest_free_block: Option<usize>

Size of the largest contiguous free block, when measurable. This pool tracks only a running free-BYTE COUNT, never the placement of individual allocations in address space, so it has no way to know whether that free capacity is one block or many small ones – None, never a claim that all free memory forms one contiguous block (the previous behavior).

fragmentation_ratio: Option<f64>

None for the same reason as Self::largest_free_block: real fragmentation is a function of block placement and allocator policy, neither of which this crate tracks or simulates.

free_block_distribution: Option<Vec<usize>>

Per-block free-space sizes, when known. None – not an empty Vec, which would misleadingly read as “zero free blocks exist” – see Self::largest_free_block.

external_fragmentation: Option<f64>

None for the same reason as Self::fragmentation_ratio.

internal_fragmentation: Option<f64>

None for the same reason as Self::fragmentation_ratio.

Trait Implementations

impl Clone for MemoryFragmentationSnapshot

fn clone(&self) -> MemoryFragmentationSnapshot

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MemoryFragmentationSnapshot

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for MemoryFragmentationSnapshot

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for MemoryFragmentationSnapshot

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

where __S: Serializer,

Serialize this value into the given Serde serializer.