You are viewing a plain text version of this content. The canonical link for it is here.
Posted to dev@lucene.apache.org by "Erick Erickson (JIRA)" <ji...@apache.org> on 2016/10/28 01:24:58 UTC
[jira] [Updated] (SOLR-9296) Examine SortingResponseWriter with an
eye towards removing extra object creation
[ https://issues.apache.org/jira/browse/SOLR-9296?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Erick Erickson updated SOLR-9296:
---------------------------------
Attachment: (was: SOLR-9296.patch)
> Examine SortingResponseWriter with an eye towards removing extra object creation
> --------------------------------------------------------------------------------
>
> Key: SOLR-9296
> URL: https://issues.apache.org/jira/browse/SOLR-9296
> Project: Solr
> Issue Type: Improvement
> Security Level: Public(Default Security Level. Issues are Public)
> Affects Versions: 6.2, master (7.0)
> Reporter: Erick Erickson
> Assignee: Erick Erickson
> Attachments: SOLR-9296.patch
>
>
> Assigning to myself just to keep from losing track it. Anyone who wants to take it, please feel free!
> While looking at SOLR-9166 I noticed that SortingResponseWriter does a toString for each field it writes out. At a _very_ preliminary examination it seems like we create a lot of String objects that need to be GC'd. Could we reduce this by using some kind of CharsRef/ByteBuffer/Whatever?
> I've only looked at this briefly, not quite sure what the gotchas are but throwing it out for discussion.
> Some initial thoughts:
> 1> for the fixed types (numerics, dates, booleans) there's a strict upper limit on the size of each value so we can allocate something up-front.
> 2> for string fields, we already get a chars ref so just pass that through?
> 3> must make sure that whatever does the actual writing transfers all the bytes before returning.
> I'm sure I won't get to this for a week or perhaps more, so grab it if you have the bandwidth.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
---------------------------------------------------------------------
To unsubscribe, e-mail: dev-unsubscribe@lucene.apache.org
For additional commands, e-mail: dev-help@lucene.apache.org