[archivist] Fix memory usage issue.

This CL fixes high memory usage in Archivist:
- Switch to correct constant for in-memory buffering.
- Switch to buffer_unordered to support out of order execution of
inspect snapshots.
- Increase snapshot limit from 2 to 4, to provide for better backfilling
and throughput.

Still need to limit overall work between archive accessors.

Bug: 62685
Change-Id: I616028314663d6d062cff86eec25ab4f3427a068
Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/443634
Reviewed-by: Adam Perry <adamperry@google.com>
Testability-Review: Adam Perry <adamperry@google.com>
Commit-Queue: Adam Perry <adamperry@google.com>
Commit-Queue: Christopher Johnson <crjohns@google.com>
2 files changed
tree: 17f7f30575106a37c78491da928d8342a79cae79
  1. boards/
  2. build/
  3. bundles/
  4. docs/
  5. examples/
  6. garnet/
  7. products/
  8. scripts/
  9. sdk/
  10. src/
  11. third_party/
  12. tools/
  13. zircon/
  14. .clang-format
  15. .clang-tidy
  16. .gitattributes
  17. .gitignore
  18. .gn
  19. .style.yapf
  20. AUTHORS
  21. BUILD.gn
  22. CODE_OF_CONDUCT.md
  23. CONTRIBUTING.md
  24. LICENSE
  25. OWNERS
  26. PATENTS
  27. README.md
  28. rustfmt.toml
README.md

Fuchsia

Pink + Purple == Fuchsia (a new operating system)

What is Fuchsia?

Fuchsia is a modular, capability-based operating system. Fuchsia runs on modern 64-bit Intel and ARM processors.

Fuchsia is an open source project with a code of conduct that we expect everyone who interacts with the project to respect.

Read more about Fuchsia's principles.

How can I build and run Fuchsia?

See Getting Started.

Where can I learn more about Fuchsia?

See fuchsia.dev.