send-boot-metrics.conf

# Copyright (c) 2012 The Chromium OS Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

description   "Report once-per-boot UMA statistics"
author        "chromium-os-dev@chromium.org"

start on started system-services

script
  GET_FIRMWARE_TIME='
    /Initial usec timer/ {
      sub(".*Initial usec timer ", "")
      initial_usec = $0
      exit
    }
    END {
      printf "%.2f\n", initial_usec / 1000000
    }
  '

  # TODO(jrbarnette): This is a concession to existing chrome code
  # that uses the value for reporting metrics to UMA.  We'd like to
  # move that reporting here, to reduce coupling with chrome.  Once
  # we've moved the metrics reporting here, the code to create this
  # file can be removed.
  dmesg | awk "$GET_FIRMWARE_TIME" >/tmp/firmware-boot-time

  # usage:
  #   report_disk_metrics <read-sectors> <write-sectors>
  report_disk_metrics() {
    metrics_client Platform.BootSectorsRead $1 1 1000000 50
    metrics_client Platform.BootSectorsWritten $2 1 10000 50
  }

  report_disk_metrics $(
    bootstat_get_last boot-complete read-sectors write-sectors)

  send_metrics_on_resume -b

  # Report disk health from SMART (S.M.A.R.T.) parameters.
  # usage:
  #   report_smart_metrics <uncorrectable-errors> <transfer-errors>
  report_smart_metrics() {
    metrics_client Platform.SmartUncorrectableErrors $1 1 1000000 20
    metrics_client Platform.SmartTransferErrors      $2 1 1000000 20
  }

  GET_SMART_ERRORS='
    BEGIN { uncorr = 0; txfer = 0 }
    $2 == "Reported_Uncorrect" { uncorr = $10 }
    $2 == "UDMA_CRC_Error_Count" { txfer = $10 }
    END { print uncorr, txfer }
  '
  report_smart_metrics $(
    smartctl -A $(rootdev -s -d) | awk "$GET_SMART_ERRORS")

  POWERWASH_COMPLETE="/mnt/stateful_partition/unencrypted/.powerwash_completed"
  POWERWASH_COUNT="/mnt/stateful_partition/unencrypted/preserve/powerwash_count"
  # Report powerwash stats if a powerwash recently occurred.
  if [ -f $POWERWASH_COMPLETE -a -f /home/chronos/.oobe_completed ]; then
    # Upload the fact powerwash occurred and the number of times this device
    # has been powerwashed.
    COUNT=$(head -1 $POWERWASH_COUNT | cut -c1-4)
    if [ $(expr "$COUNT" : "^[0-9][0-9]*$") -ne 0 ]; then
      metrics_client Installer.PowerwashCount $COUNT 1 1000 20
    fi
    rm -f $POWERWASH_COMPLETE
  fi
end script