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Jonathan J. Pittard jonathanjpittard@gmail

Jonathan J. Pittard jonathanjpittard@gmail.com. Bias...Very Real . Bias...Rarely Static. Joe, Coat, Summer. Biased Skip Lists. ?????. Building the SSASL. Start with a Skip List. Building the SSASL. Add Counters. Building the SSASL. Add “A”. Searching the SSASL. Search and Increment.

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Jonathan J. Pittard jonathanjpittard@gmail

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  1. Jonathan J. Pittard jonathanjpittard@gmail.com

  2. Bias...Very Real

  3. Bias...Rarely Static Joe, Coat, Summer

  4. Biased Skip Lists

  5. ?????

  6. Building the SSASL • Start with a Skip List

  7. Building the SSASL Add Counters

  8. Building the SSASL Add “A”

  9. Searching the SSASL Search and Increment

  10. Optimizing the SSASL Out-of-Order, Sub-Optimal SSASL

  11. Optimizing the SSASL Promote the lower-level item

  12. Optimizing the SSASL Demote the higher-level item

  13. Optimizing the SSASL Divide Counts by A

  14. Performance 80%-90% Faster than Skip List for High Bias 30%-50% Faster for Small Bias Faster than Old Biased Designs at Any Bias Smaller Memory Requirement, Code Base

  15. Caveats and Considerations Downtime Scheduling Skip List Before Optimization Sub-Optimal List Still Faster Assigning RNG Probability and “A” Factor

  16. Simple!

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