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LocalWriteThrottlerSleepMicroseconds is too unpredictable in debug builds, event with 50% of allowed error it still fails [1]. [1]: https://s3.amazonaws.com/clickhouse-test-reports/51006/6cc4f76707b196b0f02938671f62c9bb3d267faa/stateless_tests__debug__%5B2_5%5D.html Looking into query_log artifacts: $ clickhouse-local --file query_log.tsv.zst --input-format TSVWithNamesAndTypes -q "select query_duration_ms, ProfileEvents['LocalWriteThrottlerSleepMicroseconds'] from table where log_comment = '02703_max_local_write_bandwidth.sh' and type != 'QueryStart' and query_id = 'eebxgbfqyt'" --output-format Vertical Row 1: ────── query_duration_ms: 15'608 arrayElement(ProfileEvents, 'LocalWriteThrottlerSleepMicroseconds'): 1'385'203 So query duration is 15.6sec, while throttle sleeps only 1.39sec, which is only 9%, apparently it waits somewhere else. Signed-off-by: Azat Khuzhin <a.khuzhin@semrush.com>
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