Rusage

libc_core::resource

Struct Rusage

#[repr(C)]
pub struct Rusage {Show 16 fields
    pub utime: TimeVal,
    pub stime: TimeVal,
    pub maxrss: i64,
    pub ixrss: i64,
    pub idrss: i64,
    pub isrss: i64,
    pub minflt: i64,
    pub majflt: i64,
    pub nswap: i64,
    pub inblock: i64,
    pub oublock: i64,
    pub msgsnd: i64,
    pub msgrcv: i64,
    pub nsignals: i64,
    pub nvcsw: i64,
    pub nivcsw: i64,
}

Expand description

资源使用情况结构体（对应 C 的 struct rusage）记录进程或线程的时间和资源消耗信息 MUSL: https://github.com/bminor/musl/blob/c47ad25ea3b484e10326f933e927c0bc8cded3da/include/sys/resource.h#L27

Fields§

§utime: TimeVal

用户态运行时间（单位：秒 + 微秒）

§stime: TimeVal

内核态运行时间（单位：秒 + 微秒）

§maxrss: i64

最大常驻集大小（单位：KB），即内存占用峰值

§ixrss: i64

索引页的使用数量（已废弃）

§idrss: i64

数据段内存使用量（已废弃）

§isrss: i64

堆栈段内存使用量（已废弃）

§minflt: i64

页面缺页异常数（软缺页，不涉及磁盘 IO）

§majflt: i64

主缺页异常数（硬缺页，需要从磁盘读取页面）

§nswap: i64

发生的交换（swap）次数

§inblock: i64

输入操作（块设备读取）的次数

§oublock: i64

输出操作（块设备写入）的次数

§msgsnd: i64

发送的 IPC 消息数（已废弃）

§msgrcv: i64

接收的 IPC 消息数（已废弃）

§nsignals: i64

捕获的信号数量

§nvcsw: i64

自愿上下文切换次数（如等待锁）

§nivcsw: i64

非自愿上下文切换次数（被内核抢占）

Trait Implementations§

impl Clone for Rusage

fn clone(&self) -> Rusage

Returns a duplicate of the value. Read more

1.0.0 · Source§

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

Performs copy-assignment from source. Read more

impl Default for Rusage

fn default() -> Rusage

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

Auto Trait Implementations§

impl Freeze for Rusage

impl RefUnwindSafe for Rusage

impl Send for Rusage

impl Sync for Rusage

impl Unpin for Rusage

impl UnwindSafe for Rusage

Blanket Implementations§

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

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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

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

Mutably borrows from an owned value. Read more

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

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

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

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

fn into(self) -> U

Calls U::from(self).

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

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

type Error = Infallible

The type returned in the event of a conversion error.

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

Performs the conversion.

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

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

The type returned in the event of a conversion error.

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

Performs the conversion.