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Vlad Lazar 148b3701cf pageserver: add metrics for get page batch breaking reasons (#11545) 
## Problem

https://github.com/neondatabase/neon/pull/11494 changes the batching
logic, but we don't have a way to evaluate it.

## Summary of changes

This PR introduces a global and per timeline metric which tracks the
reason for
which a batch was broken.
2025-04-14 13:24:47 +00:00
..
interactive
Enable all pyupgrade checks in ruff
2024-10-08 14:32:26 -05:00
pagebench
test_runner: propagate config via attach_hook for test fix (#11529)
2025-04-11 11:31:12 +00:00
__init__.py
Enable all pyupgrade checks in ruff
2024-10-08 14:32:26 -05:00
README.md
Make Postgres 16 default version (#8745)
2024-08-20 10:46:58 +01:00
test_page_service_batching.py
pageserver: add metrics for get page batch breaking reasons (#11545)
2025-04-14 13:24:47 +00:00
util.py
tests/performance: reconcile until idle before benchmark (#11435)
2025-04-09 16:32:19 +00:00

README.md

How to reproduce benchmark results / run these benchmarks interactively.

  1. Get an EC2 instance with Instance Store. Use the same instance type as used for the benchmark run.
  2. Mount the Instance Store => neon.git/scripts/ps_ec2_setup_instance_store
  3. Use a pytest command line (see other READMEs further up in the pytest hierarchy).

For tests that take a long time to set up / consume a lot of storage space, we use the test suite's repo_dir snapshotting functionality (from_repo_dir). It supports mounting snapshots using overlayfs, which improves iteration time.

Here's a full command line.

RUST_BACKTRACE=1 NEON_ENV_BUILDER_USE_OVERLAYFS_FOR_SNAPSHOTS=1 DEFAULT_PG_VERSION=16 BUILD_TYPE=release \
    ./scripts/pytest test_runner/performance/pageserver/pagebench/test_pageserver_max_throughput_getpage_at_latest_lsn.py