Commit Graph

4 Commits

Author SHA1 Message Date
Keir Mierle
612880968d pw_metric: Update PW_METRIC() API usage in docs
A previous API change to add an explicit name parameter to the PW_METRIC
and PW_METRIC_GROUP macros didn't update all uses in the docs.

Change-Id: I2a4193b3b670c3e4896ae03784078700546e5e28
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/16342
Commit-Queue: Keir Mierle <keir@google.com>
Reviewed-by: Ewout van Bekkum <ewout@google.com>
2020-08-20 22:57:27 +00:00
Keir Mierle
9b51cdf629 pw_metric: Add size report
This adds a size report for pw_metric, not including the RPC service.
The report shows the impact of having a few metrics, of dumping, and of
adding more metrics.

At this time, the flash usage on Cortex-M4 is unexpectedly large due to
the creation of large static constructors. This will require followup
CLs to address.

This CL also moves a few inlined methods from the .h file into the .cc
to reduce code size.

Change-Id: Ie0cb041a6e1e5e77c921e9078adea2eaabccdd43
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/16300
Commit-Queue: Keir Mierle <keir@google.com>
Reviewed-by: Alexei Frolov <frolv@google.com>
2020-08-20 22:46:37 +00:00
Keir Mierle
f4dfd87bb5 pw_metric: Metric RPC service
This adds a metric RPC service, which exposes a metric tree. The user
selects which metrics to expose. The metric tree is sent via streaming
RPC to enable streaming potentially large sets of metrics.

Change-Id: Ib308995b8f7f91ce439ca42fe298f802d4bdf7e3
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/16003
Commit-Queue: Keir Mierle <keir@google.com>
Reviewed-by: Alexei Frolov <frolv@google.com>
Reviewed-by: Ewout van Bekkum <ewout@google.com>
2020-08-20 21:48:27 +00:00
Keir Mierle
45fa7859d8 pw_metric: Create new module
This starts the metrics module, which will eventually offer facilities
to track metrics about a system, like average memory use, or other
performance counters.

Change-Id: I2b9dd089cbc2a15af295661fda6f8a6c30353d45
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/15441
Commit-Queue: Keir Mierle <keir@google.com>
Reviewed-by: Wyatt Hepler <hepler@google.com>
Reviewed-by: Ewout van Bekkum <ewout@google.com>
Reviewed-by: Fateh Singh <fsingh@google.com>
Reviewed-by: Zoltan Szatmary-Ban <szatmz@google.com>
2020-08-14 02:38:03 +00:00