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WebMetrics

scx_mlfq::stats

Struct WebMetrics 

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pub struct WebMetrics {
    pub stats: Metrics,
    pub per_cpu: Vec<PerCpuMetrics>,
    pub queue_runnable: Vec<u64>,
    pub llc_runnable: Vec<u64>,
    pub gpu_submit_total: u64,
    pub gpu_trace_mask: u32,
}
Expand description

Snapshot served by the web UI’s /api/stats endpoint.

The run loop pushes one of these every iteration (both the stats request and the idle-timeout branches); the webui thread keeps the newest snapshot behind a mutex for the HTTP handlers. All fields are instantaneous gauges, not interval deltas: the gauges bypass the stats server’s delta() entirely.

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§stats: Metrics

The scheduler-wide counters, raw (no delta applied).

§per_cpu: Vec<PerCpuMetrics>

One entry per online CPU.

§queue_runnable: Vec<u64>

Tracked runnable tasks per queue; index 0 unused, 1..3 = Q1..Q3.

§llc_runnable: Vec<u64>

Tracked runnable tasks per LLC domain.

§gpu_submit_total: u64

Lifetime count of deduped gpu_submit bumps since attach, one per 10 ms per-task window. This is the global hit counter (mlfq_gpu_submit_total), not the per-task 0..4 quant. Each logical GPU job that fires 2-3 tracepoints in a burst counts as one here, same window as PerCpuMetrics.running_gpu_submit.

§gpu_trace_mask: u32

Bitmask of GPU tracepoints that are attached on this run (bit0 amdgpu_cs, bit1 amdgpu_cs_ioctl, bit2 gpu_sched). Like gpu_submit_total this is a system gauge, not a per-task value.

Trait Implementations§

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impl Clone for WebMetrics

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fn clone(&self) -> WebMetrics

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 WebMetrics

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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 Default for WebMetrics

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fn default() -> WebMetrics

Returns the “default value” for a type. Read more
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impl<'de> Deserialize<'de> for WebMetrics

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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 WebMetrics

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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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