Struct perfetto_consumer_proto::perfetto::protos::TraceStats

pub struct TraceStats {

    pub buffer_stats: Vec<BufferStats>,
    pub chunk_payload_histogram_def: Vec<i64>,
    pub writer_stats: Vec<WriterStats>,
    pub producers_connected: Option<u32>,
    pub producers_seen: Option<u64>,
    pub data_sources_registered: Option<u32>,
    pub data_sources_seen: Option<u64>,
    pub tracing_sessions: Option<u32>,
    pub total_buffers: Option<u32>,
    pub chunks_discarded: Option<u64>,
    pub patches_discarded: Option<u64>,
    pub invalid_packets: Option<u64>,
    pub filter_stats: Option<FilterStats>,
    pub flushes_requested: Option<u64>,
    pub flushes_succeeded: Option<u64>,
    pub flushes_failed: Option<u64>,
    pub final_flush_outcome: Option<i32>,
}

Statistics for the internals of the tracing service.

Next id: 19.

Fields

buffer_stats: Vec<BufferStats>

Stats for the TraceBuffer(s) of the current trace session.

chunk_payload_histogram_def: Vec<i64>

The thresholds of each the writer_stats histogram buckets. This is emitted only once as all WriterStats share the same bucket layout. This field has the same cardinality of the writer_stats.chunk_payload_histogram_{counts,sum} - 1. (The -1 is because the last overflow bucket is not reported in the _def). An array of values [10, 100, 1000] in the _def array means that there are four buckets (3 + the implicit overflow bucket): [0]: x <= 10; [1]: 100 < x <= 1000; [2]: 1000 < x <= 1000; [3]: x > 1000.

writer_stats: Vec<WriterStats>

producers_connected: Option<u32>

Num. producers connected (whether they are involved in the current tracing session or not).

producers_seen: Option<u64>

Num. producers ever seen for all trace sessions since startup (it’s a good proxy for inferring num. producers crashed / killed).

data_sources_registered: Option<u32>

Num. data sources registered for all trace sessions.

data_sources_seen: Option<u64>

Num. data sources ever seen for all trace sessions since startup.

tracing_sessions: Option<u32>

Num. concurrently active tracing sessions.

total_buffers: Option<u32>

Num. buffers for all tracing session (not just the current one). This will be >= buffer_stats.size(), because the latter is only about the current session.

chunks_discarded: Option<u64>

Num. chunks that were discarded by the service before attempting to commit them to a buffer, e.g. because the producer specified an invalid buffer ID.

patches_discarded: Option<u64>

Num. patches that were discarded by the service before attempting to apply them to a buffer, e.g. because the producer specified an invalid buffer ID.

invalid_packets: Option<u64>

Packets that failed validation of the TrustedPacket. If this is > 0, there is a bug in the producer.

filter_stats: Option<FilterStats>

flushes_requested: Option<u64>

Count of Flush() requests (either from the Consumer, or self-induced periodic flushes). The final Flush() is also included in the count.

flushes_succeeded: Option<u64>

The count of the Flush() requests that were completed successfully. In a well behaving trace this should always be == flush_requests.

flushes_failed: Option<u64>

The count of the Flush() requests that failed (in most timed out). In a well behaving trace this should always be == 0.

final_flush_outcome: Option<i32>

Implementations

impl TraceStats

pub fn producers_connected(&self) -> u32

Returns the value of producers_connected, or the default value if producers_connected is unset.

pub fn producers_seen(&self) -> u64

Returns the value of producers_seen, or the default value if producers_seen is unset.

pub fn data_sources_registered(&self) -> u32

Returns the value of data_sources_registered, or the default value if data_sources_registered is unset.

pub fn data_sources_seen(&self) -> u64

Returns the value of data_sources_seen, or the default value if data_sources_seen is unset.

pub fn tracing_sessions(&self) -> u32

Returns the value of tracing_sessions, or the default value if tracing_sessions is unset.

pub fn total_buffers(&self) -> u32

Returns the value of total_buffers, or the default value if total_buffers is unset.

pub fn chunks_discarded(&self) -> u64

Returns the value of chunks_discarded, or the default value if chunks_discarded is unset.

pub fn patches_discarded(&self) -> u64

Returns the value of patches_discarded, or the default value if patches_discarded is unset.

pub fn invalid_packets(&self) -> u64

Returns the value of invalid_packets, or the default value if invalid_packets is unset.

pub fn flushes_requested(&self) -> u64

Returns the value of flushes_requested, or the default value if flushes_requested is unset.

pub fn flushes_succeeded(&self) -> u64

Returns the value of flushes_succeeded, or the default value if flushes_succeeded is unset.

pub fn flushes_failed(&self) -> u64

Returns the value of flushes_failed, or the default value if flushes_failed is unset.

pub fn final_flush_outcome(&self) -> FinalFlushOutcome

Returns the enum value of final_flush_outcome, or the default if the field is unset or set to an invalid enum value.

pub fn set_final_flush_outcome(&mut self, value: FinalFlushOutcome)

Sets final_flush_outcome to the provided enum value.

Trait Implementations

impl Clone for TraceStats

fn clone(&self) -> TraceStats

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for TraceStats

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

Formats the value using the given formatter.

impl Default for TraceStats

fn default() -> Self

Returns the “default value” for a type.

impl Message for TraceStats

fn encoded_len(&self) -> usize

Returns the encoded length of the message without a length delimiter.

fn clear(&mut self)

Clears the message, resetting all fields to their default.

fn encode<B>(&self, buf: &mut B) -> Result<(), EncodeError>

where B: BufMut, Self: Sized,

Encodes the message to a buffer.

fn encode_to_vec(&self) -> Vec<u8>

where Self: Sized,

Encodes the message to a newly allocated buffer.

fn encode_length_delimited<B>(&self, buf: &mut B) -> Result<(), EncodeError>

where B: BufMut, Self: Sized,

Encodes the message with a length-delimiter to a buffer.

fn encode_length_delimited_to_vec(&self) -> Vec<u8>

where Self: Sized,

Encodes the message with a length-delimiter to a newly allocated buffer.

fn decode<B>(buf: B) -> Result<Self, DecodeError>

where B: Buf, Self: Default,

Decodes an instance of the message from a buffer.

fn decode_length_delimited<B>(buf: B) -> Result<Self, DecodeError>

where B: Buf, Self: Default,

Decodes a length-delimited instance of the message from the buffer.

fn merge<B>(&mut self, buf: B) -> Result<(), DecodeError>

where B: Buf, Self: Sized,

Decodes an instance of the message from a buffer, and merges it into self.

fn merge_length_delimited<B>(&mut self, buf: B) -> Result<(), DecodeError>

where B: Buf, Self: Sized,

Decodes a length-delimited instance of the message from buffer, and merges it into self.

impl PartialEq for TraceStats

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

This method tests for self and other values to be equal, and is used by ==.

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

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

impl StructuralPartialEq for TraceStats