[roll] Roll fuchsia [kernel][vm] Prioritize OOM eviction in EvictUntilTargetsMet

Adds oom_trigger to EvictUntilTargetsMet to bypass the cap on amount of
pages freed per iteration. This allows OOM evictions to run to
completion quickly without interleaving with parallel asynchronous
attempts. The cap was added mainly to ensure an OOM eviction attempt did
not block behind a long asynchronous one.

Local testing doesn't show much of a difference in the overall time
spent during OOM reclamation, which typically spans several 100ms. The
higher priority memory-pressure-thread propagates its priority to the
eviction-thread when it's waiting on the eviction_lock_ anyway. But it's
worth avoiding bouncing between the two threads unnecessarily.

Original-Bug: 492218086
Run-All-Tests: true
Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/1546940
Original-Revision: 0de5bd66f16eebdaeb8d682438575f74a808e0b4
GitOrigin-RevId: 7aff967a7cb212d92d24bf472be0776a45ad6f68
Change-Id: I36d2f0dede23eda461a19884152d15ae43de1160
1 file changed
tree: 27825a1ef20bf9baf8c2fa0adef22bff315ec5c2
  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.