| # Copyright (c) 2013 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 UMA statistics each time login prompt is shown" |
| author "chromium-os-dev@chromium.org" |
| |
| # This is triggered every time the login prompt is shown. |
| start on login-prompt-visible |
| |
| script |
| # Records the difference between two timestamps in milliseconds. |
| # Only emits metrics if none of the three arguments are empty. |
| # Arguments are <starting point> <ending point> <metric name> |
| record_delta() { |
| if [ $# -eq 3 ]; then |
| metrics_client $3 $(($2 - $1)) 1 1000000 50 |
| fi |
| } |
| |
| CHROME_LOGOUT_STARTED=$(bootstat_get_last logout-started time-ms) |
| # Only record restart statistics if chrome performed a logout. |
| if [ -n "$CHROME_LOGOUT_STARTED" ]; then |
| CHROME_UI_POST_STOP=$(bootstat_get_last ui-post-stop time-ms) |
| CHROME_PROCESSES_TERMINATED=$(bootstat_get_last \ |
| other-processes-terminated time-ms) |
| CHROME_X_TERMINATED=$(bootstat_get_last x-terminated time-ms) |
| CHROME_CRYPTOHOME_UNMOUNTED=$(bootstat_get_last \ |
| cryptohome-unmounted time-ms) |
| CHROME_EXEC=$(bootstat_get_last chrome-exec time-ms) |
| CHROME_LOGIN_PROMPT_VISIBLE=$(bootstat_get_last \ |
| login-prompt-visible time-ms) |
| |
| # Record deltas between some interesting steps. |
| record_delta $CHROME_LOGOUT_STARTED $CHROME_UI_POST_STOP \ |
| Uptime.LogoutToUIStopAfterLogout |
| |
| record_delta $CHROME_UI_POST_STOP $CHROME_PROCESSES_TERMINATED \ |
| Uptime.UIStopToProcessesTerminatedAfterLogout |
| |
| record_delta $CHROME_PROCESSES_TERMINATED $CHROME_X_TERMINATED \ |
| Uptime.ProcessesTerminatedToXTerminatedAfterLogout |
| |
| record_delta $CHROME_X_TERMINATED $CHROME_EXEC \ |
| Uptime.XTerminatedToChromeExecAfterLogout |
| |
| record_delta $CHROME_EXEC $CHROME_LOGIN_PROMPT_VISIBLE \ |
| Uptime.ChromeExecToLoginPromptVisibleAfterLogout |
| |
| # Some summary statistics so we can account for everything. |
| record_delta $CHROME_LOGOUT_STARTED $CHROME_CRYPTOHOME_UNMOUNTED \ |
| Uptime.Logout |
| |
| record_delta $CHROME_CRYPTOHOME_UNMOUNTED $CHROME_LOGIN_PROMPT_VISIBLE \ |
| Uptime.LoginPromptSetupTimeAfterLogout |
| |
| record_delta $CHROME_LOGOUT_STARTED $CHROME_LOGIN_PROMPT_VISIBLE \ |
| Uptime.LogoutToLoginPromptVisible |
| fi |
| end script |
