shubhamvishu commented on code in PR #12653:
URL: https://github.com/apache/lucene/pull/12653#discussion_r1365181118
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lucene/core/src/java/org/apache/lucene/codecs/MultiLevelSkipListWriter.java:
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@@ -63,24 +63,23 @@ public abstract class MultiLevelSkipListWriter {
/** for every skip level a different buffer is used */
private ByteBuffersDataOutput[] skipBuffer;
+ /** Length of the window at which the skips are placed on skip level 1 */
+ private final long windowLength;
+
/** Creates a {@code MultiLevelSkipListWriter}. */
protected MultiLevelSkipListWriter(
int skipInterval, int skipMultiplier, int maxSkipLevels, int df) {
this.skipInterval = skipInterval;
this.skipMultiplier = skipMultiplier;
- int numberOfSkipLevels;
+ int numberOfSkipLevels = 1;
// calculate the maximum number of skip levels for this document frequency
- if (df <= skipInterval) {
- numberOfSkipLevels = 1;
- } else {
- numberOfSkipLevels = 1 + MathUtil.log(df / skipInterval, skipMultiplier);
- }
-
- // make sure it does not exceed maxSkipLevels
- if (numberOfSkipLevels > maxSkipLevels) {
- numberOfSkipLevels = maxSkipLevels;
+ if (df > skipInterval) {
+ // also make sure it does not exceed maxSkipLevels
+ numberOfSkipLevels =
+ Math.min(1 + MathUtil.log(df / skipInterval, skipMultiplier),
maxSkipLevels);
}
Review Comment:
Sure
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