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"disable" disk eviction in pagebench periodic benchmark (#12487)

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## Problem

https://github.com/neondatabase/neon/pull/12464 introduced new defaults
for pageserver disk based eviction which activated disk based eviction
for pagebench periodic pagebench.
This caused the testcase to fail.

## Summary of changes

Override the new defaults during testcase execution.

## Test run

https://github.com/neondatabase/neon/actions/runs/16120217757/job/45483869734

Test run was successful, so merging this now
This commit is contained in:
Peter Bendel
2025-07-08 11:38:06 +02:00
committed by GitHub
parent 4f16ab3f56
commit f51ed4a2c4
1 changed files with 1 additions and 3 deletions
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4
test_runner/performance/pageserver/pagebench/test_pageserver_max_throughput_getpage_at_latest_lsn.py
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@@ -104,9 +104,7 @@ def setup_and_run_pagebench_benchmark(
# configure cache sizes like in prod
page_cache_size = 16384
max_file_descriptors = 500000
neon_env_builder.pageserver_config_override = (
f"page_cache_size={page_cache_size}; max_file_descriptors={max_file_descriptors}"
)
neon_env_builder.pageserver_config_override = f"page_cache_size={page_cache_size}; max_file_descriptors={max_file_descriptors}; disk_usage_based_eviction={{max_usage_pct=99, min_avail_bytes=0, period = '999y'}}"
tracing_config = PageserverTracingConfig(
sampling_ratio=(0, 1000),