Add metrics for virtio and RTC wakeup events that includes how long the
guest was asleep for before the wakeup event occurred. Technically guest
userspace can arm the RTC independent of going to sleep, but in practice
it's only armed by the RTC driver when the guest is suspending.
BUG=b:332466813
TEST=Boot ARCVM w/ArcIdleManager+ArcS2Idle, observe histograms
Change-Id: Id6c684334ebc1e80e4fc342302c617531ce2fb6b
Reviewed-on: https://chromium-review.googlesource.com/c/crosvm/crosvm/+/5400364
Reviewed-by: Noah Gold <nkgold@google.com>
Commit-Queue: David Stevens <stevensd@chromium.org>
Add a metrics_event package instead of relying on metric events provided
out of a vendor/ crate. The new API defines the same events as the
existing vendor API, except it removes any dependencies on downstream
details. To allow downstream projects to define their own events, the
new API adds a vendor metrics_event package to support downstream-only
event types.
BUG=b:332466813
TEST=./tools/dev_container ./tools/presubmit all
Change-Id: I766ad6ca2a0a437bb487e27fb84a4984f66c9770
Reviewed-on: https://chromium-review.googlesource.com/c/crosvm/crosvm/+/5400361
Reviewed-by: Daniel Verkamp <dverkamp@chromium.org>
Reviewed-by: Noah Gold <nkgold@google.com>
Reviewed-by: Dennis Kempin <denniskempin@google.com>
Commit-Queue: David Stevens <stevensd@chromium.org>
