Yuchen Liang 85b954f449 pageserver: add tokio-epoll-uring slots waiters queue depth metrics (#9482) ...

In complement to
https://github.com/neondatabase/tokio-epoll-uring/pull/56.

## Problem

We want to make tokio-epoll-uring slots waiters queue depth observable
via Prometheus.

## Summary of changes

- Add `pageserver_tokio_epoll_uring_slots_submission_queue_depth`
metrics as a `Histogram`.
- Each thread-local tokio-epoll-uring system is given a `LocalHistogram`
to observe the metrics.
- Keep a list of `Arc<ThreadLocalMetrics>` used on-demand to flush data
to the shared histogram.
- Extend `Collector::collect` to report
`pageserver_tokio_epoll_uring_slots_submission_queue_depth`.

Signed-off-by: Yuchen Liang <yuchen@neon.tech>
Co-authored-by: Christian Schwarz <christian@neon.tech>

2024-10-25 21:30:57 +01:00

..

endpoint

compute_ctl: Add endpoint that allows extensions to be installed (#9344)

2024-10-18 15:07:36 +03:00

pageserver

pageserver: add testing API to scan layers for disposable keys (#9393)

2024-10-25 14:16:45 +02:00

safekeeper

Enable all pyupgrade checks in ruff

2024-10-08 14:32:26 -05:00

__init__.py

Enable all pyupgrade checks in ruff

2024-10-08 14:32:26 -05:00

auth_tokens.py

Move a few test functions related to auth tokens to separate file (#9018)

2024-09-17 06:53:18 +03:00

benchmark_fixture.py

Move PgBenchInitResult.EXTRACTORS to a private module constant

2024-10-09 14:02:09 -05:00

common_types.py

Improve some typing in test_runner

2024-10-09 15:42:22 -05:00

compare_fixtures.py

Improve some typing in test_runner

2024-10-09 15:42:22 -05:00

compute_reconfigure.py

Improve some typing in test_runner

2024-10-09 15:42:22 -05:00

flaky.py

Improve some typing in test_runner

2024-10-09 15:42:22 -05:00

httpserver.py

Improve some typing in test_runner

2024-10-09 15:42:22 -05:00

log_helper.py

Improve some typing in test_runner

2024-10-09 15:42:22 -05:00

metrics.py

pageserver: add tokio-epoll-uring slots waiters queue depth metrics (#9482)

2024-10-25 21:30:57 +01:00

neon_api.py

Use valid type hints for Python 3.9

2024-10-10 13:00:25 -05:00

neon_cli.py

Update ruff to much newer version (#9433)

2024-10-18 12:42:41 +02:00

neon_fixtures.py

pageserver: add testing API to scan layers for disposable keys (#9393)

2024-10-25 14:16:45 +02:00

overlayfs.py

Improve some typing in test_runner

2024-10-09 15:42:22 -05:00

parametrize.py

Improve some typing in test_runner

2024-10-09 15:42:22 -05:00

paths.py

Test versions mismatch (#9167)

2024-10-11 15:29:54 +02:00

pg_stats.py

Enable all pyupgrade checks in ruff

2024-10-08 14:32:26 -05:00

pg_version.py

Improve some typing in test_runner

2024-10-09 15:42:22 -05:00

port_distributor.py

Improve some typing in test_runner

2024-10-09 15:42:22 -05:00

remote_storage.py

Improve some typing in test_runner

2024-10-09 15:42:22 -05:00

slow.py

Enable all pyupgrade checks in ruff

2024-10-08 14:32:26 -05:00

storage_controller_proxy.py

Improve some typing in test_runner

2024-10-09 15:42:22 -05:00

utils.py

Fix local errors for the tests with the versions mix (#9477)

2024-10-22 21:58:55 +02:00

workload.py

Improve some typing in test_runner

2024-10-09 15:42:22 -05:00