Enum Software 

#[repr(u32)]
pub enum Software {
    CPU_CLOCK = 0,
    TASK_CLOCK = 1,
    PAGE_FAULTS = 2,
    CONTEXT_SWITCHES = 3,
    CPU_MIGRATIONS = 4,
    PAGE_FAULTS_MIN = 5,
    PAGE_FAULTS_MAJ = 6,
    ALIGNMENT_FAULTS = 7,
    EMULATION_FAULTS = 8,
    DUMMY = 9,
}

Software counters, implemented by the kernel.

Each variant of this enum corresponds to a particular PERF_COUNT_SW_… value supported by the perf_event_open system call.

Variants

CPU_CLOCK = 0

This reports the CPU clock, a high-resolution per-CPU timer.

TASK_CLOCK = 1

This reports a clock count specific to the task that is running.

PAGE_FAULTS = 2

This reports the number of page faults.

CONTEXT_SWITCHES = 3

This counts context switches. Until Linux 2.6.34, these were all reported as user-space events, after that they are reported as happening in the kernel.

CPU_MIGRATIONS = 4

This reports the number of times the process has migrated to a new CPU.

PAGE_FAULTS_MIN = 5

This counts the number of minor page faults. These did not require disk I/O to handle.

PAGE_FAULTS_MAJ = 6

This counts the number of major page faults. These required disk I/O to handle.

ALIGNMENT_FAULTS = 7

(since Linux 2.6.33) This counts the number of alignment faults. These happen when unaligned memory accesses happen; the kernel can handle these but it reduces performance. This happens only on some architectures (never on x86).

EMULATION_FAULTS = 8

(since Linux 2.6.33) This counts the number of emulation faults. The kernel sometimes traps on unimplemented instructions and emulates them for user space. This can negatively impact performance.

DUMMY = 9

(since Linux 3.12) This is a placeholder event that counts nothing. Informational sample record types such as mmap or comm must be associated with an active event. This dummy event allows gathering such records without requiring a counting event.

Trait Implementations

impl Clone for Software

fn clone(&self) -> Software

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Software

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

Formats the value using the given formatter.

impl From<Software> for Event

fn from(hw: Software) -> Event

Converts to this type from the input type.

impl PartialEq for Software

fn eq(&self, other: &Software) -> 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 Copy for Software

impl Eq for Software

impl StructuralPartialEq for Software