[feedback] Track reboot reason persist duration
Bug: 52274
Change-Id: I0e7d40c3f1b01dc260835eab966e70c22ad9ad52
Reviewed-on: https://fuchsia-review.googlesource.com/c/cobalt-registry/+/390583
Commit-Queue: Alex Pankhurst <pankhurst@google.com>
Reviewed-by: Mitch Rudominer <rudominer@google.com>
Reviewed-by: Francois Rousseau <frousseau@google.com>
diff --git a/fuchsia/feedback/metrics.yaml b/fuchsia/feedback/metrics.yaml
index 09b0e21..2b02304 100644
--- a/fuchsia/feedback/metrics.yaml
+++ b/fuchsia/feedback/metrics.yaml
@@ -192,7 +192,7 @@
meta_data:
max_release_stage: GA
expiration_date: "2020/08/27"
-
+
#####################################################################
# bugreport_generation_duration_usecs
#
@@ -233,3 +233,42 @@
meta_data:
max_release_stage: GA
expiration_date: "2020/08/27"
+
+#######################################################################
+# reboot_reason_persist_duration_usecs
+#
+# Whenever last_reboot.cmx receives a notification that the system is
+# going to shutdown we log the elapsed time in microseconds that it
+# takes to persist the reboot reason to disk. This metric is collected
+# once each time a device shuts down.
+#######################################################################
+- id: 7
+ metric_name: reboot_reason_persist_duration_usecs
+ metric_type: ELAPSED_TIME
+ metric_dimensions:
+ - dimension: write_result
+ event_codes:
+ 0: Success
+ 1: Failure
+ reports:
+ #####################################################################
+ # histogram
+ #
+ # Determine the distribution of how long it takes to persist the
+ # reboot reason between 0 and 5 seconds, using 0.1 second wide
+ # bucket.
+ #####################################################################
+ - report_name: histogram
+ id: 1
+ report_type: INT_RANGE_HISTOGRAM
+ int_buckets:
+ linear:
+ floor: 0
+ num_buckets: 50
+ step_size: 100000 # .1 second
+ local_privacy_noise_level: NONE
+ system_profile_field: [BOARD_NAME, PRODUCT_NAME, SYSTEM_VERSION, CHANNEL]
+ meta_data:
+ max_release_stage: GA
+ expiration_date: "2021/05/15"
+
