diff options
| author | James Hawkins <jhawkins@google.com> | 2017-01-17 13:27:05 -0800 |
|---|---|---|
| committer | James Hawkins <jhawkins@google.com> | 2017-01-19 10:15:51 -0800 |
| commit | b7893e6fa4b3a3cff3963d357086275a57489097 (patch) | |
| tree | 9ece0c391c3881be095bceafc64910fa9ddb9f46 | |
| parent | 00d5dad56ff30102fa270832981a837b2f28155c (diff) | |
| download | core-b7893e6fa4b3a3cff3963d357086275a57489097.tar.gz | |
bootstat: Fix false metrics due to soft reboots.
Use a flag to enable/disable logging metrics, set to false during soft
reboots.
Bug: 32807863
Change-Id: Ib1359327af4e18d40400c29961c454f7be1b8d0c
Test: None
(cherry picked from commit 800ceb45b15c2b63edd4c699862653c55fe55ef2)
| -rw-r--r-- | bootstat/bootstat.rc | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/bootstat/bootstat.rc b/bootstat/bootstat.rc index c96e996f5..ca8bea22e 100644 --- a/bootstat/bootstat.rc +++ b/bootstat/bootstat.rc @@ -11,8 +11,26 @@ on post-fs-data on post-fs-data && property:init.svc.bootanim=running exec - root root -- /system/bin/bootstat -r post_decrypt_time_elapsed +# sys.logbootcomplete is a signal to enable the bootstat logging mechanism. +# This signaling is necessary to prevent logging boot metrics after a soft +# reboot (e.g., adb shell stop && adb shell start). /proc/uptime is not reset +# during a soft reboot, which leads to false boot time metrics being reported. +# +# The 'on boot' event occurs once per hard boot (device power on), which +# switches the flag on. If the device performs a soft reboot, the flag is +# switched off and cannot be switched on until the device hard boots again. + +# Enable bootstat logging on boot. +on boot + setprop sys.logbootcomplete 1 + +# Disable further bootstat logging on a soft reboot. A soft reboot is +# signaled by the zygote stopping. +on property:init.svc.zygote=stopping + setprop sys.logbootcomplete 0 + # Record boot complete metrics. -on property:sys.boot_completed=1 +on property:sys.boot_completed=1 && property:sys.logbootcomplete=1 # Record boot_complete and related stats (decryption, etc). exec - root root -- /system/bin/bootstat --record_boot_complete |