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https://issues.apache.org/jira/browse/SOLR-15337?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17340518#comment-17340518
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Noble Paul commented on SOLR-15337:
-----------------------------------

Another memory test

created 50 collections (1 shard 1replica)

 
{code:java}
SOLR8.8
start-heap : 122683392
final-heap : 309329920
diff-heap : 186646528

SOLR8.9 branch
start-heap : 125829120
final-heap : 293601280
diff-heap : 167772160
{code}
Conclusion : ~{{20MB}} saved on a 50 core node

> Avoid XPath in solrconfig.xml parsing
> -------------------------------------
>
>                 Key: SOLR-15337
>                 URL: https://issues.apache.org/jira/browse/SOLR-15337
>             Project: Solr
>          Issue Type: Improvement
>      Security Level: Public(Default Security Level. Issues are Public) 
>            Reporter: Noble Paul
>            Assignee: Noble Paul
>            Priority: Major
>         Attachments: 1433-memtest
>
>          Time Spent: 40m
>  Remaining Estimate: 0h
>
> XPath parsing is slow and inefficient



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