Enum Counter

#[repr(i32)]
pub enum Counter {
    UnknownCounter = 0,
    SwCpuClock = 1,
    SwPageFaults = 2,
    SwTaskClock = 3,
    SwContextSwitches = 4,
    SwCpuMigrations = 5,
    SwPageFaultsMin = 6,
    SwPageFaultsMaj = 7,
    SwAlignmentFaults = 8,
    SwEmulationFaults = 9,
    SwDummy = 20,
    HwCpuCycles = 10,
    HwInstructions = 11,
    HwCacheReferences = 12,
    HwCacheMisses = 13,
    HwBranchInstructions = 14,
    HwBranchMisses = 15,
    HwBusCycles = 16,
    HwStalledCyclesFrontend = 17,
    HwStalledCyclesBackend = 18,
    HwRefCpuCycles = 19,
}

Builtin counter names from the uapi header. Commented with their perf tool aliases. TODO(rsavitski): consider generating enums for cache events (should be finite), and generally make this list as extensive as possible. Excluding things like dynamic PMUs since those don’t fit into a static enum. Next id: 21

Variants

UnknownCounter = 0

SwCpuClock = 1

cpu-clock

SwPageFaults = 2

page-faults, faults

SwTaskClock = 3

task-clock

SwContextSwitches = 4

context-switches, cs

SwCpuMigrations = 5

cpu-migrations, migrations

SwPageFaultsMin = 6

minor-faults

SwPageFaultsMaj = 7

major-faults

SwAlignmentFaults = 8

alignment-faults

SwEmulationFaults = 9

emulation-faults

SwDummy = 20

dummy

HwCpuCycles = 10

cpu-cycles, cycles

HwInstructions = 11

instructions

HwCacheReferences = 12

cache-references

HwCacheMisses = 13

cache-misses

HwBranchInstructions = 14

branch-instructions, branches

HwBranchMisses = 15

branch-misses

HwBusCycles = 16

bus-cycles

HwStalledCyclesFrontend = 17

stalled-cycles-frontend, idle-cycles-frontend

HwStalledCyclesBackend = 18

stalled-cycles-backend, idle-cycles-backend

HwRefCpuCycles = 19

ref-cycles

Implementations

impl Counter

pub fn is_valid(value: i32) -> bool

Returns true if value is a variant of Counter.

pub fn from_i32(value: i32) -> Option<Counter>

👎Deprecated: Use the TryFrom<i32> implementation instead

Converts an i32 to a Counter, or None if value is not a valid variant.

impl Counter

pub fn as_str_name(&self) -> &'static str

String value of the enum field names used in the ProtoBuf definition.

The values are not transformed in any way and thus are considered stable (if the ProtoBuf definition does not change) and safe for programmatic use.

pub fn from_str_name(value: &str) -> Option<Self>

Creates an enum from field names used in the ProtoBuf definition.

Trait Implementations

impl Clone for Counter

fn clone(&self) -> Counter

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Counter

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

Formats the value using the given formatter.

impl Default for Counter

fn default() -> Counter

Returns the “default value” for a type.

impl From<Counter> for i32

fn from(value: Counter) -> i32

Converts to this type from the input type.

impl Hash for Counter

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for Counter

fn cmp(&self, other: &Counter) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for Counter

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for Counter

fn partial_cmp(&self, other: &Counter) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl TryFrom<i32> for Counter

type Error = DecodeError

The type returned in the event of a conversion error.

fn try_from(value: i32) -> Result<Counter, DecodeError>

Performs the conversion.

impl Copy for Counter

impl Eq for Counter

impl StructuralPartialEq for Counter