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https://issues.apache.org/jira/browse/LUCENE-9056?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16978484#comment-16978484
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Adrien Grand commented on LUCENE-9056:
--------------------------------------
Here is a run on wikibigall. I'm surprised Prefix3 and Wildcard get the best
speedups given that it only removes an increment in BlockDocsEnum#nextDoc, but
I'm taking it. :)
{noformat}
TaskQPS baseline StdDev QPS patch StdDev
Pct diff
IntNRQ 975.14 (3.3%) 968.70 (2.7%)
-0.7% ( -6% - 5%)
IntervalsOrdered 23.67 (1.5%) 23.60 (1.4%)
-0.3% ( -3% - 2%)
SpanNear 10.74 (1.7%) 10.71 (2.2%)
-0.3% ( -4% - 3%)
Fuzzy2 80.09 (12.5%) 80.37 (12.1%)
0.3% ( -21% - 28%)
Fuzzy1 147.40 (14.1%) 148.56 (13.2%)
0.8% ( -23% - 32%)
OrHighMed 70.77 (2.7%) 71.72 (2.1%)
1.3% ( -3% - 6%)
AndMedOrHighHigh 29.92 (2.3%) 30.32 (2.5%)
1.3% ( -3% - 6%)
AndHighHigh 36.51 (3.3%) 37.03 (4.2%)
1.4% ( -5% - 9%)
AndHighMed 92.78 (2.7%) 94.12 (3.6%)
1.5% ( -4% - 8%)
SloppyPhrase 19.90 (4.3%) 20.19 (3.9%)
1.5% ( -6% - 10%)
OrHighHigh 10.15 (3.1%) 10.32 (2.5%)
1.7% ( -3% - 7%)
Term 1345.29 (5.2%) 1373.69 (3.9%)
2.1% ( -6% - 11%)
AndHighOrMedMed 37.48 (2.3%) 38.34 (2.4%)
2.3% ( -2% - 7%)
HighTermDayOfYearSort 40.85 (5.4%) 41.82 (4.5%)
2.4% ( -7% - 13%)
Phrase 66.19 (5.7%) 68.02 (4.6%)
2.8% ( -7% - 13%)
HighTermMonthSort 66.00 (12.0%) 68.35 (12.9%)
3.6% ( -19% - 32%)
Wildcard 99.69 (5.3%) 103.99 (4.1%)
4.3% ( -4% - 14%)
Prefix3 51.85 (11.0%) 55.76 (10.1%)
7.5% ( -12% - 32%)
{noformat}
> Simplify BlockImpactsDocsEnum#advance
> -------------------------------------
>
> Key: LUCENE-9056
> URL: https://issues.apache.org/jira/browse/LUCENE-9056
> Project: Lucene - Core
> Issue Type: Improvement
> Reporter: Adrien Grand
> Priority: Minor
> Time Spent: 10m
> Remaining Estimate: 0h
>
> This is a follow-up to LUCENE-9027. Now that we compute the prefix sum in
> #refillDocs, we can remove the check that we are on the last document of the
> postings list so that we should return NO_MORE_DOCS.
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