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# Sequence 1 defaults to track for "t1" and extra_counter_values for "c1".
packet {
trusted_packet_sequence_id: 1
timestamp: 0
incremental_state_cleared: true
track_descriptor {
uuid: 1
parent_uuid: 3
thread {
pid: 5
tid: 1
thread_name: "t1"
}
}
trace_packet_defaults {
track_event_defaults {
track_uuid: 1
extra_counter_track_uuids: 10 # Counter "c1", defined below.
}
}
}
# Process track for the thread.
packet {
trusted_packet_sequence_id: 1
timestamp: 0
track_descriptor {
uuid: 3
process {
pid: 5
process_name: "p1"
}
}
}
# Counter track "c1", a thread-scoped counter for "t1".
packet {
trusted_packet_sequence_id: 1
timestamp: 0
track_descriptor {
uuid: 10
parent_uuid: 1
counter {
type: 1 # COUNTER_THREAD_TIME_NS.
unit_multiplier: 1000 # provided in ys.
is_incremental: true # use delta encoding.
}
}
}
# Sequence 2 has no defaults. Define a new global counter "MySizeCounter".
packet {
trusted_packet_sequence_id: 2
timestamp: 0
incremental_state_cleared: true
track_descriptor {
uuid: 11
name: "MySizeCounter"
counter {
unit: 3 # UNIT_SIZE_BYTES.
}
}
}
# Should appear on default track "t1" with extra_counter_values for "c1".
packet {
trusted_packet_sequence_id: 1
sequence_flags: 2 # SEQ_NEEDS_INCREMENTAL_STATE
timestamp: 1000
track_event {
categories: "cat"
name: "event1_on_t1"
type: 1 # TYPE_SLICE_BEGIN.
extra_counter_values: 1000 # First value, so effectively absolute.
}
}
# End for event above.
packet {
trusted_packet_sequence_id: 1
sequence_flags: 2 # SEQ_NEEDS_INCREMENTAL_STATE
timestamp: 1100
track_event {
type: 2 # TYPE_SLICE_END.
extra_counter_values: 10 # Absolute: 1010.
}
}
# Resetting incremental state on sequence 1 will restart counter at 0.
packet {
trusted_packet_sequence_id: 1
timestamp: 2000
incremental_state_cleared: true
track_descriptor {
uuid: 1
parent_uuid: 3
thread {
pid: 5
tid: 1
thread_name: "t1"
}
}
trace_packet_defaults {
track_event_defaults {
track_uuid: 1
extra_counter_track_uuids: 10 # Counter "c1", defined below.
}
}
}
# Reemit process track for the thread.
packet {
trusted_packet_sequence_id: 1
timestamp: 2000
track_descriptor {
uuid: 3
process {
pid: 5
process_name: "p1"
}
}
}
# Reemit counter descriptor, too.
packet {
trusted_packet_sequence_id: 1
timestamp: 2000
track_descriptor {
uuid: 10
parent_uuid: 1
counter {
type: 1 # COUNTER_THREAD_TIME_NS.
unit_multiplier: 1000 # provided in ys.
is_incremental: true # use delta encoding.
}
}
}
# Should appear on default track "t1" with extra_counter_values for "c1".
packet {
trusted_packet_sequence_id: 1
sequence_flags: 2 # SEQ_NEEDS_INCREMENTAL_STATE
timestamp: 2000
track_event {
categories: "cat"
name: "event2_on_t1"
type: 1 # TYPE_SLICE_BEGIN.
extra_counter_values: 2000 # First value after reset, so absolute.
}
}
# End for event above.
packet {
trusted_packet_sequence_id: 1
sequence_flags: 2 # SEQ_NEEDS_INCREMENTAL_STATE
timestamp: 2200
track_event {
type: 2 # TYPE_SLICE_END.
extra_counter_values: 10 # Absolute: 2010.
}
}
# Counter type event for "MySizeCounter" on sequence 1.
packet {
trusted_packet_sequence_id: 1
timestamp: 3000
track_event {
track_uuid: 11 # "MySizeCounter".
type: 4 # TYPE_COUNTER.
counter_value: 1024 # Absolute.
}
}
# Counter type event for "MySizeCounter" on sequence 2.
packet {
trusted_packet_sequence_id: 2
timestamp: 3100
track_event {
track_uuid: 11 # "MySizeCounter".
type: 4 # TYPE_COUNTER.
counter_value: 2048 # Absolute.
}
}
# Override the default extra_counter_values.
packet {
trusted_packet_sequence_id: 1
sequence_flags: 2 # SEQ_NEEDS_INCREMENTAL_STATE
timestamp: 4000
track_event {
categories: "cat"
name: "event3_on_t1"
type: 3 # TYPE_INSTANT.
extra_counter_track_uuids: 10 # "c1".
extra_counter_track_uuids: 11 # "MySizeCounter".
extra_counter_values: 10 # Absolute: 2020.
extra_counter_values: 1024 # Absolute: 2020.
}
}
# Sequence 3 defaults to track for "t4" and uses legacy thread time and
# instruction count.
packet {
trusted_packet_sequence_id: 3
timestamp: 0
incremental_state_cleared: true
track_descriptor {
uuid: 4
parent_uuid: 3
thread {
pid: 5
tid: 4
thread_name: "t4"
}
}
trace_packet_defaults {
track_event_defaults {
track_uuid: 4
}
}
}
packet {
trusted_packet_sequence_id: 3
timestamp: 4000
track_event {
categories: "cat"
name: "event1_on_t3"
type: 1 # TYPE_SLICE_BEGIN.
thread_time_absolute_us: 10
thread_instruction_count_absolute: 20
}
}
packet {
trusted_packet_sequence_id: 3
timestamp: 4100
track_event {
categories: "cat"
name: "event1_on_t3"
type: 2 # TYPE_SLICE_END.
thread_time_absolute_us: 15
thread_instruction_count_absolute: 25
}
}
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