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Type: Improvement
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Resolution: Unresolved
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Priority: Major - P3
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None
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Affects Version/s: None
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Component/s: None
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Storage Execution
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v5.0
When updating in wiredtiger record store, wiredtiger_calc_modify is called to attempt to get a diff for faster update. However, when it fails to calculate such a diff, the time goes wasted. For certain workload (e.g. time series), we found that the calculation rarely succeeds and slows down the updates. We would like to implement a general heuristic (not just for time series) to adaptively increase or decrease the frequency on attempting to do the calculation.
After implementing the heuristic, the "engineering solution" for time-series in the linked ticket should be removed.
- is related to
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SERVER-56520 Time-series inserts spent a lot of time in wt_calc_modify but don't generate deltas
- Closed
- related to
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SERVER-79873 Provide a knob to disable or adjust updates with damages for a collection
- Closed