[roll] Roll fuchsia [comp_stats] interior mutability of taskinfo

previous behavior had the potential to cause deadlocks
in measure_subtree. instead of requiring a lock on the
entire struct, move out the data that needs to be locked
into their own mutexes.

when i tried to measure the effectiveness via ffx inspect,
i discovered that i had solved the deadlock but introduced
a livelock that starved driver_manager.

to fix the livelock, measure_subtree()
uses try_lock instead of lock so that the diagnostic stats
are skipped if the system is busy rather than blocking callers.

Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/1553320
Original-Revision: 0f8db705450c110d6bf7768d1abef7b6c4dbddb6
GitOrigin-RevId: 919c217e0fb73aea68be4061d167dcc8e76dc4c1
Change-Id: I97df3e9bdb3921059cb5641fe4b643806915f604
1 file changed
tree: cd5fd07bf3c4b54f3fe6b355c6139937dbfc0cc6
  1. ctf/
  2. git-hooks/
  3. infra/
  4. third_party/
  5. cobalt
  6. flower
  7. jiri.lock
  8. MILESTONE
  9. minimal
  10. prebuilts
  11. README.md
  12. stem
  13. test_durations
README.md

Integration

This repository contains Fuchsia's Global Integration manifest files.

Making changes

All changes should be made to the internal version of this repository. Our infrastructure automatically updates this version when the internal one changes.

Currently all changes must be made by a Google employee. Non-Google employees wishing to make a change can ask for assistance in one of the communication channels documented at get involved.

Obtaining the source

First install Jiri.

Next run:

$ jiri init
$ jiri import minimal https://fuchsia.googlesource.com/integration
$ jiri update

Third party

Third party projects should have their own subdirectory in ./third_party.