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Posted to issues@lucene.apache.org by "gaobinlong (via GitHub)" <gi...@apache.org> on 2025/12/08 01:42:04 UTC
Re: [PR] Skip heavy TreeSet opts for the first group in FirstPassGroupingCollector [lucene]
gaobinlong commented on PR #15128:
URL: https://github.com/apache/lucene/pull/15128#issuecomment-3624140910
Performance benchmark test on OpenSearch 3.3:
query DSL:
```
GET big5/_search
{
"query": {
"match": {
"message": "50-136-239-27"
}
},
"collapse": {
"field": "host.name"
}
}
```
Before:
| 50th percentile service time | collapsing | 457.15 | ms |
| 90th percentile service time | collapsing | 465.055 | ms |
| 99th percentile service time | collapsing | 484.799 | ms |
| 99.9th percentile service time | collapsing | 533.964 | ms |
| 100th percentile service time | collapsing | 555.568 | ms |
After:
| 50th percentile service time | collapsing | 415.191 | ms |
| 90th percentile service time | collapsing | 424.929 | ms |
| 99th percentile service time | collapsing | 450.17 | ms |
| 99.9th percentile service time | collapsing | 472.111 | ms |
| 100th percentile service time | collapsing | 478.579 | ms |
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