Struct PerCpuTimeStats 

#[non_exhaustive]
pub struct PerCpuTimeStats {
    pub cpu: u32,
    pub cpustat_user_ns: u64,
    pub cpustat_nice_ns: u64,
    pub cpustat_system_ns: u64,
    pub cpustat_softirq_ns: u64,
    pub cpustat_irq_ns: u64,
    pub cpustat_idle_ns: u64,
    pub cpustat_iowait_ns: u64,
    pub cpustat_steal_ns: u64,
    pub softirqs: [u64; 10],
    pub irqs_sum: u64,
    pub iowait_sleeptime_ns: Option<u64>,
}

Per-CPU CPU-time / softirq / IRQ snapshot captured at freeze time. One entry per CPU index visible to the host walker.

All counter fields are monotonic in the kernel — the freeze captures the instantaneous value at the moment the vCPUs rendezvous-park. Diffing two snapshots (or comparing against a pre-test baseline) is the consumer’s job; this type does not derive deltas.

Field semantics match the kernel sources:

• cpustat_*_ns: ns counter from kernel_cpustat::cpustat[CPUTIME_*]. Updated by account_user_time / account_system_index_time and siblings (kernel/sched/cputime.c). The kernel stores nanoseconds; /proc/stat divides by cputime_to_clock_t.
• softirqs[i]: kernel_stat::softirqs[i] cumulative count incremented by kstat_incr_softirqs_this_cpu on every softirq raise. Indexed by super::btf_offsets::SOFTIRQ_NAMES.
• irqs_sum: kernel_stat::irqs_sum cumulative count incremented by kstat_incr_irq_this_cpu on every hardirq.
• iowait_sleeptime_ns: tick_sched::iowait_sleeptime accumulated only under NO_HZ when the CPU enters idle with nr_iowait > 0. None when CONFIG_NO_HZ_COMMON is off or the resolver couldn’t locate tick_cpu_sched.

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

cpu: u32

CPU index (0-based) this entry describes.

cpustat_user_ns: u64

cpustat[CPUTIME_USER] (ns).

cpustat_nice_ns: u64

cpustat[CPUTIME_NICE] (ns).

cpustat_system_ns: u64

cpustat[CPUTIME_SYSTEM] (ns).

cpustat_softirq_ns: u64

cpustat[CPUTIME_SOFTIRQ] (ns).

cpustat_irq_ns: u64

cpustat[CPUTIME_IRQ] (ns).

cpustat_idle_ns: u64

cpustat[CPUTIME_IDLE] (ns).

cpustat_iowait_ns: u64

cpustat[CPUTIME_IOWAIT] (ns).

cpustat_steal_ns: u64

cpustat[CPUTIME_STEAL] (ns).

softirqs: [u64; 10]

kernel_stat::softirqs[] per-vector cumulative counts. Indexed by super::btf_offsets::SOFTIRQ_NAMES.

irqs_sum: u64

kernel_stat::irqs_sum cumulative hardirq count.

iowait_sleeptime_ns: Option<u64>

tick_sched::iowait_sleeptime accumulated NO_HZ idle time with outstanding IO (ns). None when NO_HZ disabled or tick_cpu_sched symbol was absent at resolve time.

Trait Implementations

impl Clone for PerCpuTimeStats

fn clone(&self) -> PerCpuTimeStats

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PerCpuTimeStats

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

Formats the value using the given formatter.

impl Default for PerCpuTimeStats

fn default() -> PerCpuTimeStats

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for PerCpuTimeStats

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for PerCpuTimeStats

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

where __S: Serializer,

Serialize this value into the given Serde serializer.