Struct DiskStats

Source

pub struct DiskStats {Show 28 fields
    pub blocks: usize,
    pub bytes: u64,
    pub disk_bytes: u64,
    pub queue_depth: usize,
    pub writes: u64,
    pub queued_writes: u64,
    pub inline_writes: u64,
    pub write_failures: u64,
    pub write_skipped: u64,
    pub write_raced_eviction: u64,
    pub write_nanos: u64,
    pub hits: u64,
    pub buffer_hits: u64,
    pub misses: u64,
    pub corrupt: u64,
    pub incompatible: u64,
    pub read_nanos: u64,
    pub evictions: u64,
    pub evicted_bytes: u64,
    pub prefetch_issued: u64,
    pub prefetch_dropped: u64,
    pub prefetch_hits: u64,
    pub prefetch_waits: u64,
    pub async_reads: u64,
    pub staged_blocks: usize,
    pub enospc: u64,
    pub space_clamped: u64,
    pub effective_capacity: u64,
}

Expand description

A snapshot of the tier’s behaviour. Note the two time-valued fields: hit rate alone cannot tell an operator whether a disk hit was cheaper than recomputing the prefix, which is the only question that decides whether the tier is worth having.

Fields§

§blocks: usize§bytes: u64

Everything the store has accepted, published or still buffered.

§disk_bytes: u64

The subset that has actually reached the filesystem.

§queue_depth: usize§writes: u64§queued_writes: u64§inline_writes: u64§write_failures: u64§write_skipped: u64§write_raced_eviction: u64§write_nanos: u64§hits: u64§buffer_hits: u64§misses: u64§corrupt: u64§incompatible: u64§read_nanos: u64§evictions: u64§evicted_bytes: u64§prefetch_issued: u64§prefetch_dropped: u64§prefetch_hits: u64§prefetch_waits: u64§async_reads: u64§staged_blocks: usize§enospc: u64§space_clamped: u64§effective_capacity: u64

The ceiling eviction is currently working to: max_bytes, or less when free disk says so.

DiskStats

Struct DiskStats Copy item path

Fields§

Trait Implementations§

impl Clone for DiskStats

fn clone(&self) -> DiskStats

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

impl Debug for DiskStats

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

impl Default for DiskStats

fn default() -> DiskStats

impl Eq for DiskStats

impl PartialEq for DiskStats

fn eq(&self, other: &DiskStats) -> bool

fn ne(&self, other: &Rhs) -> bool

impl StructuralPartialEq for DiskStats

Auto Trait Implementations§

impl Freeze for DiskStats

impl RefUnwindSafe for DiskStats

impl Send for DiskStats

impl Sync for DiskStats

impl Unpin for DiskStats

impl UnsafeUnpin for DiskStats

impl UnwindSafe for DiskStats

Blanket Implementations§

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

fn type_id(&self) -> TypeId

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

fn borrow(&self) -> &T

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

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

impl<T> CloneToUninit for Twhere T: Clone,

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

impl<T> From<T> for T

fn from(t: T) -> T

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

fn into(self) -> U

impl<T> IntoEither for T

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

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

impl<T> Pointable for T

const ALIGN: usize

type Init = T

unsafe fn init(init: <T as Pointable>::Init) -> usize

unsafe fn deref<'a>(ptr: usize) -> &'a T

unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

unsafe fn drop(ptr: usize)

impl<T> Same for T

type Output = T

impl<T> ToOwned for Twhere T: Clone,

type Owned = T

fn to_owned(&self) -> T

fn clone_into(&self, target: &mut T)

impl<T, U> TryFrom<U> for Twhere U: Into<T>,

type Error = !

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Struct DiskStats

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

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

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

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

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

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

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

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

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,