Enum nc::types::perf_event_read_format_t

#[repr(u8)]
pub enum perf_event_read_format_t {
    PERF_FORMAT_TOTAL_TIME_ENABLED = 1,
    PERF_FORMAT_TOTAL_TIME_RUNNING = 2,
    PERF_FORMAT_ID = 4,
    PERF_FORMAT_GROUP = 8,
    PERF_FORMAT_MAX = 16,
}

The format of the data returned by read() on a perf event fd as specified by attr.read_format:

struct read_format {
  { u64 value;
    { u64 time_enabled; } && PERF_FORMAT_TOTAL_TIME_ENABLED
    { u64 time_running; } && PERF_FORMAT_TOTAL_TIME_RUNNING
    { u64 id; } && PERF_FORMAT_ID
  } && !PERF_FORMAT_GROUP

  { u64 nr;
    { u64 time_enabled; } && PERF_FORMAT_TOTAL_TIME_ENABLED
    { u64 time_running; } && PERF_FORMAT_TOTAL_TIME_RUNNING
    { u64 value;
      { u64 id; } && PERF_FORMAT_ID
    } cntr[nr];
  } && PERF_FORMAT_GROUP
};

Variants

PERF_FORMAT_TOTAL_TIME_ENABLED = 1

PERF_FORMAT_TOTAL_TIME_RUNNING = 2

PERF_FORMAT_ID = 4

PERF_FORMAT_GROUP = 8

PERF_FORMAT_MAX = 16

non-ABI