Hi, Please see attached sample. IndexGenerator - creates a dummy index. IndexReader - retrieves documents - duration time with 7.5.0 version is ~2s, while ~6s with 8.7.0
Regards, Martynas On Tue, Dec 22, 2020 at 3:23 PM Vincenzo D'Amore <v.dam...@gmail.com> wrote: > I think it would be useful to have an example of a document and, if > possible, an example of query that takes too long. > > On Mon, Dec 21, 2020 at 1:47 PM Martynas L <martynas....@gmail.com> wrote: > > > Hello, > > > > I am sorry for the delay. > > > > Not sure what you mean by "workload". We have a performance tests, which > > started failing after upgrading to 8.7.0. > > So I just tried to query the index (built form the same source) to get > all > > documents and compare the performance with 7.5.0. > > > > Document "size" is a sum of all stored string lengths (3402519 > documents): > > > > doc size 903 - 88s vs 22s > > > > doc size 36 (only one field loaded, used searcher.doc(docID, > > Collections.singleton("fieldName"))) - 78s vs 16s > > > > doc size 439 (some fields made not stored) - 46s vs 14.5s > > > > Best regards, > > Martynas > > > > On Fri, Dec 4, 2020 at 12:06 AM Adrien Grand <jpou...@gmail.com> wrote: > > > > > Hello Martynas, > > > > > > There have indeed been changes related to stored fields in 8.7. What > does > > > your workload look like and how large are your documents on average? > > > > > > On Thu, Dec 3, 2020 at 3:04 PM Martynas L <martynas....@gmail.com> > > wrote: > > > > > > > Hi, > > > > We've migrated from 7.5.0 to 8.7.0 and find out that the index > > > "searching" > > > > is significantly (4-5 times) slower in the latest version. > > > > It seems that > > > > org.apache.lucene.search.IndexSearcher#doc(int) > > > > is slower. > > > > > > > > Is it possible to have similar performance with 8.7.0? > > > > > > > > Best regards, > > > > Martynas > > > > > > > > > > > > > -- > > > Adrien > > > > > > > > -- > Vincenzo D'Amore >
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