admission: add l0 control settings #110045
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Part of cockroachdb#82743. We introduce metrics for l0 compacted bytes, generated l0 tokens, and l0 tokens returned. Release note: None
Part of cockroachdb#82743. We add cluster settings to control: - smoothing alpha for byte token computations; - reduction factor for L0 compaction tokens, based on observed compactions; We've found these to be useful in internal experiments, and also when looking to paper over L0 compaction variability effects up in AC. Release note: None
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Part of #82743. We add cluster settings to control:
We've found these to be useful in internal experiments, and also when looking to paper over L0 compaction variability effects up in AC.
Release note: None
First commit is from #109640.