# Copyright (C) 2019 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.

# 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 2.5 seconds.
file_write_period_ms: 2500

# See b/126487238 - we need to guarantee ordering of events.
flush_period_ms: 30000

# 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: 16384
  fill_policy: RING_BUFFER
}

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

data_sources {
  config {
    name: "linux.ftrace"
    target_buffer: 0
    ftrace_config {
      # 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

      # 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: "oom_score_adj_update"

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

      # New (userspace) LMK
      atrace_apps: "lmkd"
      # Added for userspace annotation in the platform scenario test app
      atrace_apps: "android.platform.test.scenario"

      atrace_categories: "am"
    }
  }
}

data_sources {
  config {
    name: "linux.process_stats"
    target_buffer: 1
    process_stats_config {
      proc_stats_poll_ms: 10000
      proc_stats_cache_ttl_ms: 60000
    }
  }
}

data_sources {
  config {
    name: "linux.sys_stats"
    target_buffer: 1
    sys_stats_config {
      meminfo_period_ms: 1000
      meminfo_counters: MEMINFO_MEM_TOTAL
      meminfo_counters: MEMINFO_MEM_FREE
      meminfo_counters: MEMINFO_MEM_AVAILABLE
      meminfo_counters: MEMINFO_BUFFERS
      meminfo_counters: MEMINFO_CACHED
      meminfo_counters: MEMINFO_SWAP_CACHED
      meminfo_counters: MEMINFO_ACTIVE
      meminfo_counters: MEMINFO_INACTIVE
      meminfo_counters: MEMINFO_ACTIVE_ANON
      meminfo_counters: MEMINFO_INACTIVE_ANON
      meminfo_counters: MEMINFO_ACTIVE_FILE
      meminfo_counters: MEMINFO_INACTIVE_FILE
      meminfo_counters: MEMINFO_UNEVICTABLE
      meminfo_counters: MEMINFO_SWAP_TOTAL
      meminfo_counters: MEMINFO_SWAP_FREE
      meminfo_counters: MEMINFO_DIRTY
      meminfo_counters: MEMINFO_WRITEBACK
      meminfo_counters: MEMINFO_ANON_PAGES
      meminfo_counters: MEMINFO_MAPPED
      meminfo_counters: MEMINFO_SHMEM
    }
  }
}