https://bugs.documentfoundation.org/show_bug.cgi?id=104875
Bug ID: 104875
Summary: FILEOPEN: Opening xlsx file 15x times slower then in
last version, performance speed regression
Product: LibreOffice
Version: 5.2.4.2 release
Hardware: All
OS: Windows (All)
Status: UNCONFIRMED
Severity: normal
Priority: medium
Component: Calc
Assignee: [email protected]
Reporter: [email protected]
Description:
Comparing releases 5.2.3 and 5.2.4 somewhere in fixes between those versions
big perfomance regression was introduced when opening certain xlsx files
(created by excel).
I cannot include file here since it's business related, but I will send it to
QA email when requested.
Steps to Reproduce:
Just open file, from windows explorer or LibreOffice start menu, it doesn't
matter.
Actual Results:
LO 5.2.4. file opening:
1st opening: 1:39:82
2nd opening: 0:15:39
3rd opening: 0:15:14
1st opening of another similliar file, without restarting computer, after all
test above: 0:15:84
If I restart computer and try to open this file first: 1:39:21
Expected Results:
LO 5.2.3. file opening:
1st opening: 0:06:55
2nd opening: 0:04:93
3rd opening: 0:05:18
1st opening of another similliar file, without restarting computer, after all
test above: 0:06:16
Reproducible: Always
User Profile Reset: No
Additional Info:
Conclusion:
First opening of file take extremly long, 15x times longer then with 5.2.3.
release. But after file was opened first time, until reboot, you can open same
file and all similliar files much faster, but still 3x times slower then with
5.2.3. release.
User-Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:50.0) Gecko/20100101
Firefox/50.0
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