Struct ProcStatus 

pub struct ProcStatus {
    pub vm_rss: usize,
    pub vm_swap: usize,
    pub rss_anon: usize,
    pub rss_file: usize,
    pub rss_shmem: usize,
}

Memory usage of the current process, read from /proc/self/status.

The rss_* fields decompose vm_rss. The decomposition is load-bearing rather than decorative: rss_file counts pages of file-backed mappings, most of it this binary’s own text, and those pages are charged to whichever cgroup first faulted them in. On a Kubernetes node that is the runtime that unpacked the image, not the replica, so vm_rss runs a roughly constant amount above the replica’s own cgroup charge.

Fields

vm_rss: usize

Resident Set Size (RSS) in bytes.

vm_swap: usize

Swap memory in bytes.

rss_anon: usize

Resident anonymous memory in bytes.

rss_file: usize

Resident file-backed memory in bytes.

rss_shmem: usize

Resident shared memory in bytes.

Implementations

impl ProcStatus

pub fn from_proc() -> Result<Self>

Read a new ProcStatus from /proc/self/status.

Fails on platforms without a Linux-style procfs.

pub fn rss(&self) -> u64

Memory (RAM) usage, in bytes.

pub fn swap(&self) -> u64

Swap usage, in bytes.

pub fn heap(&self) -> u64

Heap (RAM + swap) usage, in bytes.

pub fn rss_anon(&self) -> u64

Resident anonymous memory, in bytes.

pub fn rss_file(&self) -> u64

Resident file-backed memory, in bytes.

pub fn rss_shmem(&self) -> u64

Resident shared memory, in bytes.

Trait Implementations

impl Clone for ProcStatus

fn clone(&self) -> ProcStatus

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for ProcStatus

impl Debug for ProcStatus

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

Formats the value using the given formatter.

impl Default for ProcStatus

fn default() -> ProcStatus

Returns the “default value” for a type.