Struct TreeSample 

#[repr(C, packed(1))]
pub struct TreeSample {
    pub pid: u32,
    pub queue: u32,
    pub feats: TreeFeats,
    pub label_ns: u64,
    pub version: u32,
}

One training sample, the mirror of struct mlfq_tree_sample.

label_ns is the run segment that followed the feature capture; the tree regresses it against feats. version carries MLFQ_TREE_SAMPLE_VERSION and is checked by the daemon’s parse, so a record from an out-of-tree producer fails the check instead of being misread. The BPF struct is packed, aligned(4) to keep the record at 84 bytes, so this mirror is packed identically; every field sits at its naturally aligned offset, and the daemon reads the record with read_unaligned.

Fields

pid: u32

Emitting task.

queue: u32

Queue the task was placed in at capture.

feats: TreeFeats

Feature vector at capture.

label_ns: u64

Run segment that followed, in nsecs (the label).

version: u32

Sample-record layout version (MLFQ_TREE_SAMPLE_VERSION).

Trait Implementations

impl Clone for TreeSample

fn clone(&self) -> TreeSample

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for TreeSample

impl Debug for TreeSample

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

Formats the value using the given formatter.