Struct SystemSnapshot

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pub struct SystemSnapshot {Show 16 fields
    pub at: Instant,
    pub cpu: Vec<CpuTimes>,
    pub cpu_delta: Vec<CpuTimes>,
    pub mem: MemInfo,
    pub swap: SwapInfo,
    pub load: [f64; 3],
    pub uptime: u64,
    pub clk_tck: u64,
    pub page_size: u64,
    pub net: NetCounters,
    pub net_rate: Rate,
    pub disk: DiskCounters,
    pub disk_rate: Rate,
    pub tasks: TaskStats,
    pub psi: Option<Psi>,
    pub zram: ZramInfo,
}

Expand description

One immutable sample handed from the sampler thread to the renderer.

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§at: Instant§cpu: Vec<CpuTimes>

Index 0 is the aggregate; indices 1..=n are per-core.

§cpu_delta: Vec<CpuTimes>

Same shape as cpu, holding the delta against the previous sample.

§mem: MemInfo§swap: SwapInfo§load: [f64; 3]§uptime: u64§clk_tck: u64§page_size: u64§net: NetCounters

Cumulative host network counters, loopback excluded.

§net_rate: Rate

Throughput against the previous sample. Zero on the first sample.

§disk: DiskCounters

Cumulative host disk counters.

§disk_rate: Rate

Throughput against the previous sample. Zero on the first sample.

§tasks: TaskStats

Filled in by the sampler once the process table has been read.

§psi: Option<Psi>

Pressure stall information. None where the kernel does not provide it (macOS, or a Linux kernel older than 4.20).

§zram: ZramInfo

Compressed RAM block devices. Empty when the machine has none.

Implementations§

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impl SystemSnapshot

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pub fn cpu_count(&self) -> usize

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pub fn cpu_usage(&self) -> f32

Aggregate CPU usage in 0.0..=1.0, including all busy segments.

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pub fn mem_usage(&self) -> f32

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pub fn swap_usage(&self) -> f32

Trait Implementations§

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impl Clone for SystemSnapshot

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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 SystemSnapshot

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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 SystemSnapshot

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fn default() -> Self

Returns the “default value” for a type. Read more

Auto Trait Implementations§

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impl UnwindSafe for SystemSnapshot

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)

Performs copy-assignment from self to dest. Read more

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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self> ⓘ

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self> ⓘ
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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