#2554
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Ran 14 Feb 2021 11:43PM UTC

Jobs 1

Files 77

Run time 4s

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Build # #2554

Build Type

push

other

Committed by

ben-manes

Commit Message

Fix hill climber adjustment of the protected region

The cache's size is capped by a threshold and honored, but where it
thought to have allocated space was incorrect. The window, probation,
and protected regions shuffle entries between them. The sizes of these
regions changes over time as the cache makes adjustments to optimize
the hit rate. This is done by sampling and using hill climbing to
favor LRU or MRU/LFU based on the workload's characteristics.

Two small bugs that had no visible impact were discovered when
improving the internal state checks.
a) On update, the protected region current size was set as its max
   + the weight difference.
b) When climbing, the protected region's current size was increased
   but the entry was moved from the window to the probation region.

Coverage Stats

6240 of 6741 relevant lines covered (92.57%)

0.93 hits per line

Jobs

ID	Job ID	Ran	Files	Coverage
1	#2554.1	14 Feb 2021 11:43PM UTC	0	92.57

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