https://issues.apache.org/bugzilla/show_bug.cgi?id=46774
Summary: Extreme memory usage in XSSF workbook
Product: POI
Version: 3.5-dev
Platform: Macintosh
OS/Version: Mac OS X 10.4
Status: NEW
Severity: normal
Priority: P2
Component: XSSF
AssignedTo: [email protected]
ReportedBy: [email protected]
Using HSSF, a simple test of 10000 rows by 255 columns runs fine with "-Xms128m
-Xmx394m" and is fast.
Using XSSF, the same exact test fails before even getting to 1000 rows, and is
extremely slow. After bumping the memory to "-Xms512m -Xmx2048m", it fails
somewhere between 3000 and 4000 rows.
Please see the attached sample code, which is based on your Timesheet Demo.
Thank you,
Rob
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