# Copyright (C) 2023 The Android Open Source Project
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

# Based on trace_config_detailed.textproto
# proto-message: TraceConfig

# Enable periodic flushing of the trace buffer into the output file.
write_into_file: true

# Writes the userspace buffer into the file every 1s.
file_write_period_ms: 1000

# See b/126487238 - we need to guarantee ordering of events.
flush_period_ms: 10000

# The trace buffers needs to be big enough to hold |file_write_period_ms| of
# trace data. The trace buffer sizing depends on the number of trace categories
# enabled and the device activity.

# RSS events
buffers {
  size_kb: 32768
  fill_policy: RING_BUFFER
}

# procfs polling
buffers {
  size_kb: 8192
  fill_policy: RING_BUFFER
}

# perf memory
buffers {
  size_kb: 65536
  fill_policy: RING_BUFFER
}

data_sources {
  config {
    name: "linux.ftrace"
    target_buffer: 0
    ftrace_config {
      throttle_rss_stat: true
      # These parameters affect only the kernel trace buffer size and how
      # frequently it gets moved into the userspace buffer defined above.
      buffer_size_kb: 16384
      drain_period_ms: 250

      # Store certain high-volume "sched" ftrace events in a denser format
      # (falling back to the default format if not supported by the tracer).
      compact_sched {
        enabled: true
      }

      # Enables symbol name resolution against /proc/kallsyms
      symbolize_ksyms: true
      # Parse kallsyms before acknowledging that the ftrace data source has been started. In
      # combination with "perfetto --background-wait" as the consumer, it lets us defer the
      # test we're tracing until after the cpu has quieted down from the cpu-bound kallsyms parsing.
      initialize_ksyms_synchronously_for_testing: true
      # Avoid re-parsing kallsyms on every test run, as it takes 200-500ms per run. See b/239951079
      ksyms_mem_policy: KSYMS_RETAIN

      # We need to do process tracking to ensure kernel ftrace events targeted at short-lived
      # threads are associated correctly
      ftrace_events: "task/task_newtask"
      ftrace_events: "task/task_rename"
      ftrace_events: "sched/sched_process_exit"
      ftrace_events: "sched/sched_process_free"

      # Memory events
      ftrace_events: "rss_stat"
      ftrace_events: "ion_heap_shrink"
      ftrace_events: "ion_heap_grow"
      ftrace_events: "ion/ion_stat"
      ftrace_events: "dmabuf_heap/dma_heap_stat"
      ftrace_events: "oom_score_adj_update"
      ftrace_events: "gpu_mem/gpu_mem_total"
      ftrace_events: "fastrpc/fastrpc_dma_stat"

      # Power events
      ftrace_events: "power/suspend_resume"
      ftrace_events: "power/cpu_frequency"
      ftrace_events: "power/cpu_idle"
      ftrace_events: "power/gpu_frequency"

      # Old (kernel) LMK
      ftrace_events: "lowmemorykiller/lowmemory_kill"

      atrace_apps: "*"

      atrace_categories: "am"
      atrace_categories: "aidl"
      atrace_categories: "bionic"
      atrace_categories: "camera"
      atrace_categories: "wm"
      atrace_categories: "dalvik"
      atrace_categories: "sched"
      atrace_categories: "freq"
      atrace_categories: "gfx"
      atrace_categories: "view"
      atrace_categories: "webview"
      atrace_categories: "input"
      atrace_categories: "hal"
      atrace_categories: "binder_driver"
      atrace_categories: "sync"
      atrace_categories: "workq"
      atrace_categories: "res"
      atrace_categories: "power"

    }
  }
}

data_sources {
  config {
    name: "linux.process_stats"
    target_buffer: 1
    process_stats_config {
      proc_stats_poll_ms: 10000
    }
  }
}

data_sources {
  config {
    name: "linux.perf"
    target_buffer: 2
    perf_event_config {
      timebase {
        frequency: 80
      }
      callstack_sampling {
        scope {
          target_cmdline: "android.tests.enforcepermission.tests"
          target_cmdline: "android.tests.enforcepermission.service"
          target_cmdline: "system_server"
        }
        kernel_frames: true
      }
    }
  }
}