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Metrics

scx_eevdf::stats

Struct Metrics 

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pub struct Metrics {
    pub elapsed_ns: u64,
    pub nr_cpus: u64,
    pub ops_profiled: u64,
    pub nr_sis_updates: u64,
    pub sis_scan_sum: u64,
    pub arena_bytes: u64,
    pub arena_max_bytes: u64,
    pub arena_counted: u64,
    pub arena_active_allocs: u64,
    pub arena_alloc_failures: u64,
    pub ops: BTreeMap<String, OpStats>,
}

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§elapsed_ns: u64

Monotonic nanoseconds covered by this sample

§nr_cpus: u64

Number of CPUs the overhead is spread over

§ops_profiled: u64

Kernel BPF run-time statistics are enabled (1) or unavailable (0)

§nr_sis_updates: u64

Periodic SIS_UTIL scan-budget updates

§sis_scan_sum: u64

Sum of the scan budgets produced by SIS_UTIL updates

§arena_bytes: u64

Bytes of arena pages the kernel has allocated

§arena_max_bytes: u64

Size of the arena map in bytes

§arena_counted: u64

Arena usage is known (1): counted at the allocator with –stats, or by the kernel

§arena_active_allocs: u64

Arena allocator objects currently allocated, task contexts mostly

§arena_alloc_failures: u64

Arena allocations that failed because the kernel refused a page

§ops: BTreeMap<String, OpStats>

sched_ext callbacks, keyed by name, see BPF_ENABLE_STATS

Implementations§

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impl Metrics

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fn delta(&self, rhs: &Self) -> Self

Per-interval view: counters become deltas, the rest stays as it is.

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fn calls(&self, op: &str) -> u64

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fn secs(&self) -> f64

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fn ops_ns(&self) -> u64

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fn ops_cpu(&self) -> f64

Total callback time over the sample, as a fraction of one CPU.

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fn sis_avg_scan(&self) -> f64

Trait Implementations§

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impl Clone for Metrics

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fn clone(&self) -> Self

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 Metrics

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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 Metrics

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fn default() -> Self

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

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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 Meta for Metrics

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fn meta() -> StatsMeta

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impl Serialize for Metrics

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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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