Lines Matching refs:a
10 …l increasing target size. Except a special level 0, every level is key-range partitioned into many…
20 …a level to the next level, it creates a hole. Over time, incoming compaction will fill data to the…
22 …ed, LevelDB's approach optimizes write amplification, because a file being picked covers a range w…
24 …a compaction priority **kOldestSmallestSeqFirst** for the same effect. With this mode, we always p…
28 …a DB only key 150-160 are updated and other keys are seldom updated. If level 1 contains 20 keys, …
30 …a file whose latest update is the oldest. It means there is no incoming data for the range for the…
34 If one file contains a lot of delete markers, it may slow down iterating over this area, because we…
36 …a file exceeds number of inserts, it is more likely to be picked for compaction. The more number o…
40 …a a compaction priority to optimize this case. In some of our use cases, we solved the problem in …
43 …es of compaction priority modes optimizing different scenarios. if you have a new use case, we sug…
45 … are welcome to implement and benchmark it. We'll be glad to review and merge your a pull requests.