[jira] [Closed] (LUCENENET-647) Performance decreasement migrating from 3.0.3 to 4.8.0

["Shad Storhaug (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/LUCENENET-647?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Shad Storhaug closed LUCENENET-647.
-----------------------------------
    Fix Version/s: Lucene.Net 4.8.0
       Resolution: Fixed

[~Mo Dje]

We have done many more performance improvements since 4.8.0-beta0007. We ran some benchmarks and 4.8.0-beta00010 search speed is double the speed of 4.8.0-beta00007.

This issue has been moved from JIRA to GitHub (https://github.com/apache/lucenenet/issues/249), but do let us know if the performance is close to what you see in Lucene.NET 3.0.3.

> Performance decreasement migrating from 3.0.3 to 4.8.0
> ------------------------------------------------------
>
>                 Key: LUCENENET-647
>                 URL: https://issues.apache.org/jira/browse/LUCENENET-647
>             Project: Lucene.Net
>          Issue Type: Improvement
>         Environment: OS: Windows 10
> CPU: Intel Core i7-8700 
> RAM: 32Gb
>            Reporter: Mo Dje
>            Priority: Major
>             Fix For: Lucene.Net 4.8.0
>
>
> Hello,
> I'm currently migrating a project, that uses Lucene.Net, from .Net Framework to .Net Core.
> I had to migrate from 3.0.3 version of Lucene to 4.8.0 (beta0007) but I noticed performance decreasement while measuring response time while requesting the database. The response time using Lucene 4.8.0 is two to three times higher than 3.0.3 version.
> I read some forum topics where other users noticed this performance decreasement too. Are you aware about that? Do you plan to do something to improve performances of Lucene 4.8.0?
> Best regards



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