Struct DatapathStats 

pub struct DatapathStats {

    pub tx_packets: CachePadded<AtomicU64>,
    pub tx_bytes: CachePadded<AtomicU64>,
    pub tx_dropped: CachePadded<AtomicU64>,
    pub tx_errors: CachePadded<AtomicU64>,
    pub rx_packets: CachePadded<AtomicU64>,
    pub rx_bytes: CachePadded<AtomicU64>,
    pub rx_dropped: CachePadded<AtomicU64>,
    pub rx_errors: CachePadded<AtomicU64>,
    pub nat_translations: CachePadded<AtomicU64>,
    pub nat_fast_path_hits: CachePadded<AtomicU64>,
    pub nat_slow_path_lookups: CachePadded<AtomicU64>,
    pub nat_connections_created: CachePadded<AtomicU64>,
    pub nat_connections_expired: CachePadded<AtomicU64>,
    pub poll_iterations: CachePadded<AtomicU64>,
    pub poll_work_done: CachePadded<AtomicU64>,
    pub poll_busy_spins: CachePadded<AtomicU64>,
    pub batch_histogram: [CachePadded<AtomicU64>; 8],
}

Datapath performance statistics.

All counters are cache-line aligned to prevent false sharing when updated from different threads.

Fields

tx_packets: CachePadded<AtomicU64>

Total packets transmitted (guest -> host).

tx_bytes: CachePadded<AtomicU64>

Total bytes transmitted.

tx_dropped: CachePadded<AtomicU64>

TX packets dropped due to full queue.

tx_errors: CachePadded<AtomicU64>

TX errors.

rx_packets: CachePadded<AtomicU64>

Total packets received (host -> guest).

rx_bytes: CachePadded<AtomicU64>

Total bytes received.

rx_dropped: CachePadded<AtomicU64>

RX packets dropped due to full queue.

rx_errors: CachePadded<AtomicU64>

RX errors.

nat_translations: CachePadded<AtomicU64>

NAT translations performed.

nat_fast_path_hits: CachePadded<AtomicU64>

NAT fast path hits.

nat_slow_path_lookups: CachePadded<AtomicU64>

NAT slow path lookups.

nat_connections_created: CachePadded<AtomicU64>

NAT connection tracking entries created.

nat_connections_expired: CachePadded<AtomicU64>

NAT connection tracking entries expired.

poll_iterations: CachePadded<AtomicU64>

Poll loop iterations.

poll_work_done: CachePadded<AtomicU64>

Poll loop iterations with work done.

poll_busy_spins: CachePadded<AtomicU64>

Poll loop busy spins (no work).

batch_histogram: [CachePadded<AtomicU64>; 8]

Batch sizes histogram (power of 2 buckets). [0]: 1 packet, [1]: 2 packets, [2]: 4 packets, etc.

Implementations

impl DatapathStats

pub const fn new() -> Self

Creates new empty statistics.

pub fn record_tx(&self, packets: u64, bytes: u64)

Records transmitted packets.

pub fn record_tx_drop(&self)

Records a TX drop.

pub fn record_tx_error(&self)

Records a TX error.

pub fn record_rx(&self, packets: u64, bytes: u64)

Records received packets.

pub fn record_rx_drop(&self)

Records an RX drop.

pub fn record_rx_error(&self)

Records an RX error.

pub fn record_nat_translation(&self, fast_path: bool)

Records a NAT translation.

pub fn record_nat_connection_created(&self)

Records a new NAT connection.

pub fn record_nat_connection_expired(&self)

Records an expired NAT connection.

pub fn record_poll(&self, work_done: bool)

Records a poll iteration.

pub fn record_batch_size(&self, size: usize)

Records a batch size in the histogram.

pub fn snapshot(&self) -> StatsSnapshot

Returns a snapshot of current statistics.

pub fn reset(&self)

Resets all counters to zero.

Trait Implementations

impl Debug for DatapathStats

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

Formats the value using the given formatter.

impl Default for DatapathStats

fn default() -> Self

Returns the “default value” for a type.