https://bz.apache.org/bugzilla/show_bug.cgi?id=58915
Bug ID: 58915
Summary: memory eaters
Product: POI
Version: 3.13-FINAL
Hardware: PC
Status: NEW
Severity: normal
Priority: P2
Component: SXSSF
Assignee: [email protected]
Reporter: [email protected]
Created attachment 33480
--> https://bz.apache.org/bugzilla/attachment.cgi?id=33480&action=edit
memory eaters
We did stress test:
- Tomcat 7 Xmx100m
- JVM 7
- on request we start 10 threads and each thread writes large xlsx file with
10 rows sliding window (SXSSF) to the file
Library we use:
- jxls 2.8
- jxls-poi 1.0.7
- Apache POI 3.13 (poi, poi-ooxml, poi-ooxml-schemas)
- xmlbeans 2.6.0
It was assumed that window should reduce memory consumption to volume memory
needed for window.
For large xlsx files we can see what objects Xobj$ElementXobj, Xobj$AttrXobj,
STRefImpl, CTMergeCellImpl eat memory.
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