[Libreoffice-bugs] [Bug 142996] New: Copy large cell range in Calc is very slow (20s in Calc vs 1s in Excel)

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=142996

            Bug ID: 142996
           Summary: Copy large cell range in Calc is very slow (20s in
                    Calc vs 1s in Excel)
           Product: LibreOffice
           Version: 7.3.0.0 alpha0+ Master
          Hardware: All
                OS: Linux (All)
            Status: UNCONFIRMED
          Severity: normal
          Priority: medium
         Component: Calc
          Assignee: libreoffice-bugs at lists.freedesktop.org
          Reporter: suokunlong at 126.com

It is very slow for the copy operation in Calc. Copying a large cell range from
an ODS file takes 20s in Calc, while the same data if exported to xlsx and open
in MS Excel it only takes 1s.

Steps to Reproduce:
1. Open the ODS file in attachment 168721.
2. Go to tab "Raw Data", select cell range A1:AD67920.
3. Ctrl+C to copy the selected data into clipboard.
--> 20s for copy operation to finish.

4. Resave the file as XLSX, and try to copy the same range using MS Excel.
--> 1s for the copy operation to finish.

Current Behaviour:
It take around 20s for the copy operation.

Expected Behaviour:
The data should be copied into clipboard within 1 or 2 seconds, as it is in
Excel.

This is just one example - the size of the range is not that big. In fact in
real case I usually have larger worksheets and the copy may take several
minutes.

Version: 7.1.5.0.0+ / LibreOffice Community
Build ID: 8619e743564a241eb951866616aec82e1ab3965f
CPU threads: 4; OS: Linux 5.12; UI render: default; VCL: gtk3
Locale: zh-CN (zh_CN.UTF-8); UI: zh-CN
Calc: threaded
Fedora 33 x64 with X11.

-- 
You are receiving this mail because:
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.freedesktop.org/archives/libreoffice-bugs/attachments/20210623/c9ade4ad/attachment.htm>